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clearml-agent/clearml_agent/helper/gpu/pynvml.py
allegroai 55b065a114 Update GPU stats and pynvml support
2023-12-20 17:47:19 +02:00

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#####
# Copyright (c) 2011-2023, NVIDIA Corporation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the NVIDIA Corporation nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.
#####
# flake8: noqa
# This is only to ignore F405 errors
##
# Python bindings for the NVML library
##
from ctypes import * # noqa: F403
from ctypes.util import find_library # noqa
from functools import wraps
import sys
import os
import threading
import string
## C Type mappings ##
## Enums
_nvmlEnableState_t = c_uint
NVML_FEATURE_DISABLED = 0
NVML_FEATURE_ENABLED = 1
_nvmlBrandType_t = c_uint
NVML_BRAND_UNKNOWN = 0
NVML_BRAND_QUADRO = 1
NVML_BRAND_TESLA = 2
NVML_BRAND_NVS = 3
NVML_BRAND_GRID = 4 # Deprecated from API reporting. Keeping definition for backward compatibility.
NVML_BRAND_GEFORCE = 5
NVML_BRAND_TITAN = 6
NVML_BRAND_NVIDIA_VAPPS = 7 # NVIDIA Virtual Applications
NVML_BRAND_NVIDIA_VPC = 8 # NVIDIA Virtual PC
NVML_BRAND_NVIDIA_VCS = 9 # NVIDIA Virtual Compute Server
NVML_BRAND_NVIDIA_VWS = 10 # NVIDIA RTX Virtual Workstation
NVML_BRAND_NVIDIA_CLOUD_GAMING = 11 # NVIDIA Cloud Gaming
NVML_BRAND_NVIDIA_VGAMING = NVML_BRAND_NVIDIA_CLOUD_GAMING # Deprecated from API reporting. Keeping definition for backward compatibility.
NVML_BRAND_QUADRO_RTX = 12
NVML_BRAND_NVIDIA_RTX = 13
NVML_BRAND_NVIDIA = 14
NVML_BRAND_GEFORCE_RTX = 15 # Unused
NVML_BRAND_TITAN_RTX = 16 # Unused
NVML_BRAND_COUNT = 17
_nvmlTemperatureThresholds_t = c_uint
NVML_TEMPERATURE_THRESHOLD_SHUTDOWN = 0
NVML_TEMPERATURE_THRESHOLD_SLOWDOWN = 1
NVML_TEMPERATURE_THRESHOLD_MEM_MAX = 2
NVML_TEMPERATURE_THRESHOLD_GPU_MAX = 3
NVML_TEMPERATURE_THRESHOLD_ACOUSTIC_MIN = 4
NVML_TEMPERATURE_THRESHOLD_ACOUSTIC_CURR = 5
NVML_TEMPERATURE_THRESHOLD_ACOUSTIC_MAX = 6
NVML_TEMPERATURE_THRESHOLD_COUNT = 7
_nvmlTemperatureSensors_t = c_uint
NVML_TEMPERATURE_GPU = 0
NVML_TEMPERATURE_COUNT = 1
_nvmlComputeMode_t = c_uint
NVML_COMPUTEMODE_DEFAULT = 0
NVML_COMPUTEMODE_EXCLUSIVE_THREAD = 1 ## Support Removed
NVML_COMPUTEMODE_PROHIBITED = 2
NVML_COMPUTEMODE_EXCLUSIVE_PROCESS = 3
NVML_COMPUTEMODE_COUNT = 4
_nvmlMemoryLocation_t = c_uint
NVML_MEMORY_LOCATION_L1_CACHE = 0
NVML_MEMORY_LOCATION_L2_CACHE = 1
NVML_MEMORY_LOCATION_DEVICE_MEMORY = 2
NVML_MEMORY_LOCATION_DRAM = 2
NVML_MEMORY_LOCATION_REGISTER_FILE = 3
NVML_MEMORY_LOCATION_TEXTURE_MEMORY = 4
NVML_MEMORY_LOCATION_TEXTURE_SHM = 5
NVML_MEMORY_LOCATION_CBU = 6
NVML_MEMORY_LOCATION_SRAM = 7
NVML_MEMORY_LOCATION_COUNT = 8
NVML_NVLINK_MAX_LINKS = 18
# For backwards compatibility, maintain the incorrectly-named "LANES" define
NVML_NVLINK_MAX_LANES = NVML_NVLINK_MAX_LINKS
_nvmlNvLinkErrorCounter_t = c_uint
NVML_NVLINK_ERROR_DL_REPLAY = 0
NVML_NVLINK_ERROR_DL_RECOVERY = 1
NVML_NVLINK_ERROR_DL_CRC_FLIT = 2
NVML_NVLINK_ERROR_DL_CRC_DATA = 3
NVML_NVLINK_ERROR_DL_ECC_DATA = 4
NVML_NVLINK_ERROR_COUNT = 5
_nvmlNvLinkEccLaneErrorCounter_t = c_uint
NVML_NVLINK_ERROR_DL_ECC_LANE0 = 0
NVML_NVLINK_ERROR_DL_ECC_LANE1 = 1
NVML_NVLINK_ERROR_DL_ECC_LANE2 = 2
NVML_NVLINK_ERROR_DL_ECC_LANE3 = 3
NVML_NVLINK_ERROR_DL_ECC_COUNT = 5
_nvmlNvLinkCapability_t = c_uint
NVML_NVLINK_CAP_P2P_SUPPORTED = 0
NVML_NVLINK_CAP_SYSMEM_ACCESS = 1
NVML_NVLINK_CAP_P2P_ATOMICS = 2
NVML_NVLINK_CAP_SYSMEM_ATOMICS = 3
NVML_NVLINK_CAP_SLI_BRIDGE = 4
NVML_NVLINK_CAP_VALID = 5
NVML_NVLINK_CAP_COUNT = 6
_nvmlNvLinkUtilizationCountPktTypes_t = c_uint
NVML_NVLINK_COUNTER_PKTFILTER_NOP = 0x1
NVML_NVLINK_COUNTER_PKTFILTER_READ = 0x2
NVML_NVLINK_COUNTER_PKTFILTER_WRITE = 0x4
NVML_NVLINK_COUNTER_PKTFILTER_RATOM = 0x8
NVML_NVLINK_COUNTER_PKTFILTER_NRATOM = 0x10
NVML_NVLINK_COUNTER_PKTFILTER_FLUSH = 0x20
NVML_NVLINK_COUNTER_PKTFILTER_RESPDATA = 0x40
NVML_NVLINK_COUNTER_PKTFILTER_RESPNODATA = 0x80
NVML_NVLINK_COUNTER_PKTFILTER_ALL = 0xFF
_nvmlNvLinkUtilizationCountUnits_t = c_uint
NVML_NVLINK_COUNTER_UNIT_CYCLES = 0
NVML_NVLINK_COUNTER_UNIT_PACKETS = 1
NVML_NVLINK_COUNTER_UNIT_BYTES = 2
NVML_NVLINK_COUNTER_UNIT_RESERVED = 3
NVML_NVLINK_COUNTER_UNIT_COUNT = 4
_nvmlNvLinkDeviceType_t = c_uint
NVML_NVLINK_DEVICE_TYPE_GPU = 0x00
NVML_NVLINK_DEVICE_TYPE_IBMNPU = 0x01
NVML_NVLINK_DEVICE_TYPE_SWITCH = 0x02
NVML_NVLINK_DEVICE_TYPE_UNKNOWN = 0xFF
# These are deprecated, instead use _nvmlMemoryErrorType_t
_nvmlEccBitType_t = c_uint
NVML_SINGLE_BIT_ECC = 0
NVML_DOUBLE_BIT_ECC = 1
NVML_ECC_ERROR_TYPE_COUNT = 2
_nvmlEccCounterType_t = c_uint
NVML_VOLATILE_ECC = 0
NVML_AGGREGATE_ECC = 1
NVML_ECC_COUNTER_TYPE_COUNT = 2
_nvmlMemoryErrorType_t = c_uint
NVML_MEMORY_ERROR_TYPE_CORRECTED = 0
NVML_MEMORY_ERROR_TYPE_UNCORRECTED = 1
NVML_MEMORY_ERROR_TYPE_COUNT = 2
_nvmlClockType_t = c_uint
NVML_CLOCK_GRAPHICS = 0
NVML_CLOCK_SM = 1
NVML_CLOCK_MEM = 2
NVML_CLOCK_VIDEO = 3
NVML_CLOCK_COUNT = 4
_nvmlClockId_t = c_uint
NVML_CLOCK_ID_CURRENT = 0
NVML_CLOCK_ID_APP_CLOCK_TARGET = 1
NVML_CLOCK_ID_APP_CLOCK_DEFAULT = 2
NVML_CLOCK_ID_CUSTOMER_BOOST_MAX = 3
NVML_CLOCK_ID_COUNT = 4
_nvmlDriverModel_t = c_uint
NVML_DRIVER_WDDM = 0
NVML_DRIVER_WDM = 1
NVML_DRIVER_MCDM = 2
NVML_MAX_GPU_PERF_PSTATES = 16
_nvmlPstates_t = c_uint
NVML_PSTATE_0 = 0
NVML_PSTATE_1 = 1
NVML_PSTATE_2 = 2
NVML_PSTATE_3 = 3
NVML_PSTATE_4 = 4
NVML_PSTATE_5 = 5
NVML_PSTATE_6 = 6
NVML_PSTATE_7 = 7
NVML_PSTATE_8 = 8
NVML_PSTATE_9 = 9
NVML_PSTATE_10 = 10
NVML_PSTATE_11 = 11
NVML_PSTATE_12 = 12
NVML_PSTATE_13 = 13
NVML_PSTATE_14 = 14
NVML_PSTATE_15 = 15
NVML_PSTATE_UNKNOWN = 32
_nvmlInforomObject_t = c_uint
NVML_INFOROM_OEM = 0
NVML_INFOROM_ECC = 1
NVML_INFOROM_POWER = 2
NVML_INFOROM_COUNT = 3
_nvmlReturn_t = c_uint
NVML_SUCCESS = 0
NVML_ERROR_UNINITIALIZED = 1
NVML_ERROR_INVALID_ARGUMENT = 2
NVML_ERROR_NOT_SUPPORTED = 3
NVML_ERROR_NO_PERMISSION = 4
NVML_ERROR_ALREADY_INITIALIZED = 5
NVML_ERROR_NOT_FOUND = 6
NVML_ERROR_INSUFFICIENT_SIZE = 7
NVML_ERROR_INSUFFICIENT_POWER = 8
NVML_ERROR_DRIVER_NOT_LOADED = 9
NVML_ERROR_TIMEOUT = 10
NVML_ERROR_IRQ_ISSUE = 11
NVML_ERROR_LIBRARY_NOT_FOUND = 12
NVML_ERROR_FUNCTION_NOT_FOUND = 13
NVML_ERROR_CORRUPTED_INFOROM = 14
NVML_ERROR_GPU_IS_LOST = 15
NVML_ERROR_RESET_REQUIRED = 16
NVML_ERROR_OPERATING_SYSTEM = 17
NVML_ERROR_LIB_RM_VERSION_MISMATCH = 18
NVML_ERROR_IN_USE = 19
NVML_ERROR_MEMORY = 20
NVML_ERROR_NO_DATA = 21
NVML_ERROR_VGPU_ECC_NOT_SUPPORTED = 22
NVML_ERROR_INSUFFICIENT_RESOURCES = 23
NVML_ERROR_FREQ_NOT_SUPPORTED = 24
NVML_ERROR_ARGUMENT_VERSION_MISMATCH = 25
NVML_ERROR_DEPRECATED = 26
NVML_ERROR_UNKNOWN = 999
_nvmlFanState_t = c_uint
NVML_FAN_NORMAL = 0
NVML_FAN_FAILED = 1
_nvmlFanControlPolicy_t = c_uint
NVML_FAN_POLICY_TEMPERATURE_CONTINOUS_SW = 0
NVML_FAN_POLICY_MANUAL = 1
_nvmlLedColor_t = c_uint
NVML_LED_COLOR_GREEN = 0
NVML_LED_COLOR_AMBER = 1
_nvmlGpuOperationMode_t = c_uint
NVML_GOM_ALL_ON = 0
NVML_GOM_COMPUTE = 1
NVML_GOM_LOW_DP = 2
_nvmlPageRetirementCause_t = c_uint
NVML_PAGE_RETIREMENT_CAUSE_MULTIPLE_SINGLE_BIT_ECC_ERRORS = 0
NVML_PAGE_RETIREMENT_CAUSE_DOUBLE_BIT_ECC_ERROR = 1
NVML_PAGE_RETIREMENT_CAUSE_COUNT = 2
_nvmlRestrictedAPI_t = c_uint
NVML_RESTRICTED_API_SET_APPLICATION_CLOCKS = 0
NVML_RESTRICTED_API_SET_AUTO_BOOSTED_CLOCKS = 1
NVML_RESTRICTED_API_COUNT = 2
_nvmlBridgeChipType_t = c_uint
NVML_BRIDGE_CHIP_PLX = 0
NVML_BRIDGE_CHIP_BRO4 = 1
NVML_MAX_PHYSICAL_BRIDGE = 128
_nvmlValueType_t = c_uint
NVML_VALUE_TYPE_DOUBLE = 0
NVML_VALUE_TYPE_UNSIGNED_INT = 1
NVML_VALUE_TYPE_UNSIGNED_LONG = 2
NVML_VALUE_TYPE_UNSIGNED_LONG_LONG = 3
NVML_VALUE_TYPE_SIGNED_LONG_LONG = 4
NVML_VALUE_TYPE_COUNT = 5
_nvmlPerfPolicyType_t = c_uint
NVML_PERF_POLICY_POWER = 0
NVML_PERF_POLICY_THERMAL = 1
NVML_PERF_POLICY_SYNC_BOOST = 2
NVML_PERF_POLICY_BOARD_LIMIT = 3
NVML_PERF_POLICY_LOW_UTILIZATION = 4
NVML_PERF_POLICY_RELIABILITY = 5
NVML_PERF_POLICY_TOTAL_APP_CLOCKS = 10
NVML_PERF_POLICY_TOTAL_BASE_CLOCKS = 11
NVML_PERF_POLICY_COUNT = 12
_nvmlEncoderQueryType_t = c_uint
NVML_ENCODER_QUERY_H264 = 0
NVML_ENCODER_QUERY_HEVC = 1
_nvmlFBCSessionType_t = c_uint
NVML_FBC_SESSION_TYPE_UNKNOWN = 0
NVML_FBC_SESSION_TYPE_TOSYS = 1
NVML_FBC_SESSION_TYPE_CUDA = 2
NVML_FBC_SESSION_TYPE_VID = 3
NVML_FBC_SESSION_TYPE_HWENC = 4
_nvmlDetachGpuState_t = c_uint
NVML_DETACH_GPU_KEEP = 0
NVML_DETACH_GPU_REMOVE = 1
_nvmlPcieLinkState_t = c_uint
NVML_PCIE_LINK_KEEP = 0
NVML_PCIE_LINK_SHUT_DOWN = 1
_nvmlSamplingType_t = c_uint
NVML_TOTAL_POWER_SAMPLES = 0
NVML_GPU_UTILIZATION_SAMPLES = 1
NVML_MEMORY_UTILIZATION_SAMPLES = 2
NVML_ENC_UTILIZATION_SAMPLES = 3
NVML_DEC_UTILIZATION_SAMPLES = 4
NVML_PROCESSOR_CLK_SAMPLES = 5
NVML_MEMORY_CLK_SAMPLES = 6
NVML_SAMPLINGTYPE_COUNT = 7
_nvmlPcieUtilCounter_t = c_uint
NVML_PCIE_UTIL_TX_BYTES = 0
NVML_PCIE_UTIL_RX_BYTES = 1
NVML_PCIE_UTIL_COUNT = 2
_nvmlGpuTopologyLevel_t = c_uint
NVML_TOPOLOGY_INTERNAL = 0
NVML_TOPOLOGY_SINGLE = 10
NVML_TOPOLOGY_MULTIPLE = 20
NVML_TOPOLOGY_HOSTBRIDGE = 30
NVML_TOPOLOGY_NODE = 40
NVML_TOPOLOGY_CPU = NVML_TOPOLOGY_NODE
NVML_TOPOLOGY_SYSTEM = 50
_nvmlGpuP2PCapsIndex_t = c_uint
NVML_P2P_CAPS_INDEX_READ = 0
NVML_P2P_CAPS_INDEX_WRITE = 1
NVML_P2P_CAPS_INDEX_NVLINK = 2
NVML_P2P_CAPS_INDEX_ATOMICS = 3
NVML_P2P_CAPS_INDEX_PROP = 4
NVML_P2P_CAPS_INDEX_LOOPBACK = 5
NVML_P2P_CAPS_INDEX_UNKNOWN = 6
_nvmlGpuP2PStatus_t = c_uint
NVML_P2P_STATUS_OK = 0
NVML_P2P_STATUS_CHIPSET_NOT_SUPPORED = 1
NVML_P2P_STATUS_GPU_NOT_SUPPORTED = 2
NVML_P2P_STATUS_IOH_TOPOLOGY_NOT_SUPPORTED = 3
NVML_P2P_STATUS_DISABLED_BY_REGKEY = 4
NVML_P2P_STATUS_NOT_SUPPORTED = 5
NVML_P2P_STATUS_UNKNOWN = 6
_nvmlDeviceArchitecture_t = c_uint
NVML_DEVICE_ARCH_KEPLER = 2
NVML_DEVICE_ARCH_MAXWELL = 3
NVML_DEVICE_ARCH_PASCAL = 4
NVML_DEVICE_ARCH_VOLTA = 5
NVML_DEVICE_ARCH_TURING = 6
NVML_DEVICE_ARCH_AMPERE = 7
NVML_DEVICE_ARCH_ADA = 8
NVML_DEVICE_ARCH_HOPPER = 9
NVML_DEVICE_ARCH_UNKNOWN = 0xffffffff
# PCI bus Types
_nvmlBusType_t = c_uint
NVML_BUS_TYPE_UNKNOWN = 0
NVML_BUS_TYPE_PCI = 1
NVML_BUS_TYPE_PCIE = 2
NVML_BUS_TYPE_FPCI = 3
NVML_BUS_TYPE_AGP = 4
_nvmlPowerSource_t = c_uint
NVML_POWER_SOURCE_AC = 0x00000000
NVML_POWER_SOURCE_BATTERY = 0x00000001
_nvmlAdaptiveClockInfoStatus_t = c_uint
NVML_ADAPTIVE_CLOCKING_INFO_STATUS_DISABLED = 0x00000000
NVML_ADAPTIVE_CLOCKING_INFO_STATUS_ENABLED = 0x00000001
_nvmlClockLimitId_t = c_uint
NVML_CLOCK_LIMIT_ID_RANGE_START = 0xffffff00
NVML_CLOCK_LIMIT_ID_TDP = 0xffffff01
NVML_CLOCK_LIMIT_ID_UNLIMITED = 0xffffff02
_nvmlPcieLinkMaxSpeed_t = c_uint
NVML_PCIE_LINK_MAX_SPEED_INVALID = 0x00000000
NVML_PCIE_LINK_MAX_SPEED_2500MBPS = 0x00000001
NVML_PCIE_LINK_MAX_SPEED_5000MBPS = 0x00000002
NVML_PCIE_LINK_MAX_SPEED_8000MBPS = 0x00000003
NVML_PCIE_LINK_MAX_SPEED_16000MBPS = 0x00000004
NVML_PCIE_LINK_MAX_SPEED_32000MBPS = 0x00000005
NVML_PCIE_LINK_MAX_SPEED_64000MBPS = 0x00000006
_nvmlAffinityScope_t = c_uint
NVML_AFFINITY_SCOPE_NODE = 0
NVML_AFFINITY_SCOPE_SOCKET = 1
# C preprocessor defined values
nvmlFlagDefault = 0
nvmlFlagForce = 1
NVML_INIT_FLAG_NO_GPUS = 1
NVML_INIT_FLAG_NO_ATTACH = 2
NVML_MAX_GPC_COUNT = 32
# buffer size
NVML_DEVICE_INFOROM_VERSION_BUFFER_SIZE = 16
NVML_DEVICE_UUID_BUFFER_SIZE = 80
NVML_DEVICE_UUID_V2_BUFFER_SIZE = 96
NVML_SYSTEM_DRIVER_VERSION_BUFFER_SIZE = 80
NVML_SYSTEM_NVML_VERSION_BUFFER_SIZE = 80
NVML_DEVICE_NAME_BUFFER_SIZE = 64
NVML_DEVICE_NAME_V2_BUFFER_SIZE = 96
NVML_DEVICE_SERIAL_BUFFER_SIZE = 30
NVML_DEVICE_PART_NUMBER_BUFFER_SIZE = 80
NVML_DEVICE_GPU_PART_NUMBER_BUFFER_SIZE = 80
NVML_DEVICE_VBIOS_VERSION_BUFFER_SIZE = 32
NVML_DEVICE_PCI_BUS_ID_BUFFER_SIZE = 32
NVML_DEVICE_PCI_BUS_ID_BUFFER_V2_SIZE = 16
NVML_GRID_LICENSE_BUFFER_SIZE = 128
NVML_VGPU_NAME_BUFFER_SIZE = 64
NVML_GRID_LICENSE_FEATURE_MAX_COUNT = 3
NVML_VGPU_METADATA_OPAQUE_DATA_SIZE = sizeof(c_uint) + 256
NVML_VGPU_PGPU_METADATA_OPAQUE_DATA_SIZE = 256
# Format strings
NVML_DEVICE_PCI_BUS_ID_LEGACY_FMT = "%04X:%02X:%02X.0"
NVML_DEVICE_PCI_BUS_ID_FMT = "%08X:%02X:%02X.0"
NVML_VALUE_NOT_AVAILABLE_ulonglong = c_ulonglong(-1)
NVML_VALUE_NOT_AVAILABLE_uint = c_uint(-1)
'''
Field Identifiers.
All Identifiers pertain to a device. Each ID is only used once and is guaranteed never to change.
'''
NVML_FI_DEV_ECC_CURRENT = 1 # Current ECC mode. 1=Active. 0=Inactive
NVML_FI_DEV_ECC_PENDING = 2 # Pending ECC mode. 1=Active. 0=Inactive
# ECC Count Totals
NVML_FI_DEV_ECC_SBE_VOL_TOTAL = 3 # Total single bit volatile ECC errors
NVML_FI_DEV_ECC_DBE_VOL_TOTAL = 4 # Total double bit volatile ECC errors
NVML_FI_DEV_ECC_SBE_AGG_TOTAL = 5 # Total single bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_DBE_AGG_TOTAL = 6 # Total double bit aggregate (persistent) ECC errors
# Individual ECC locations
NVML_FI_DEV_ECC_SBE_VOL_L1 = 7 # L1 cache single bit volatile ECC errors
NVML_FI_DEV_ECC_DBE_VOL_L1 = 8 # L1 cache double bit volatile ECC errors
NVML_FI_DEV_ECC_SBE_VOL_L2 = 9 # L2 cache single bit volatile ECC errors
NVML_FI_DEV_ECC_DBE_VOL_L2 = 10 # L2 cache double bit volatile ECC errors
NVML_FI_DEV_ECC_SBE_VOL_DEV = 11 # Device memory single bit volatile ECC errors
NVML_FI_DEV_ECC_DBE_VOL_DEV = 12 # Device memory double bit volatile ECC errors
NVML_FI_DEV_ECC_SBE_VOL_REG = 13 # Register file single bit volatile ECC errors
NVML_FI_DEV_ECC_DBE_VOL_REG = 14 # Register file double bit volatile ECC errors
NVML_FI_DEV_ECC_SBE_VOL_TEX = 15 # Texture memory single bit volatile ECC errors
NVML_FI_DEV_ECC_DBE_VOL_TEX = 16 # Texture memory double bit volatile ECC errors
NVML_FI_DEV_ECC_DBE_VOL_CBU = 17 # CBU double bit volatile ECC errors
NVML_FI_DEV_ECC_SBE_AGG_L1 = 18 # L1 cache single bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_DBE_AGG_L1 = 19 # L1 cache double bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_SBE_AGG_L2 = 20 # L2 cache single bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_DBE_AGG_L2 = 21 # L2 cache double bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_SBE_AGG_DEV = 22 # Device memory single bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_DBE_AGG_DEV = 23 # Device memory double bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_SBE_AGG_REG = 24 # Register File single bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_DBE_AGG_REG = 25 # Register File double bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_SBE_AGG_TEX = 26 # Texture memory single bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_DBE_AGG_TEX = 27 # Texture memory double bit aggregate (persistent) ECC errors
NVML_FI_DEV_ECC_DBE_AGG_CBU = 28 # CBU double bit aggregate ECC errors
# Page Retirement
NVML_FI_DEV_RETIRED_SBE = 29 # Number of retired pages because of single bit errors
NVML_FI_DEV_RETIRED_DBE = 30 # Number of retired pages because of double bit errors
NVML_FI_DEV_RETIRED_PENDING = 31 # If any pages are pending retirement. 1=yes. 0=no.
# NvLink Flit Error Counters
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L0 = 32 # NVLink flow control CRC Error Counter for Lane 0
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L1 = 33 # NVLink flow control CRC Error Counter for Lane 1
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L2 = 34 # NVLink flow control CRC Error Counter for Lane 2
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L3 = 35 # NVLink flow control CRC Error Counter for Lane 3
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L4 = 36 # NVLink flow control CRC Error Counter for Lane 4
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L5 = 37 # NVLink flow control CRC Error Counter for Lane 5
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_TOTAL = 38 # NVLink flow control CRC Error Counter total for all Lanes
# NvLink CRC Data Error Counters
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L0 = 39 # NVLink data CRC Error Counter for Lane 0
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L1 = 40 # NVLink data CRC Error Counter for Lane 1
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L2 = 41 # NVLink data CRC Error Counter for Lane 2
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L3 = 42 # NVLink data CRC Error Counter for Lane 3
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L4 = 43 # NVLink data CRC Error Counter for Lane 4
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L5 = 44 # NVLink data CRC Error Counter for Lane 5
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_TOTAL = 45 # NvLink data CRC Error Counter total for all Lanes
# NvLink Replay Error Counters
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L0 = 46 # NVLink Replay Error Counter for Lane 0
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L1 = 47 # NVLink Replay Error Counter for Lane 1
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L2 = 48 # NVLink Replay Error Counter for Lane 2
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L3 = 49 # NVLink Replay Error Counter for Lane 3
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L4 = 50 # NVLink Replay Error Counter for Lane 4
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L5 = 51 # NVLink Replay Error Counter for Lane 5
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_TOTAL = 52 # NVLink Replay Error Counter total for all Lanes
# NvLink Recovery Error Counters
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L0 = 53 # NVLink Recovery Error Counter for Lane 0
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L1 = 54 # NVLink Recovery Error Counter for Lane 1
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L2 = 55 # NVLink Recovery Error Counter for Lane 2
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L3 = 56 # NVLink Recovery Error Counter for Lane 3
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L4 = 57 # NVLink Recovery Error Counter for Lane 4
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L5 = 58 # NVLink Recovery Error Counter for Lane 5
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_TOTAL = 59 # NVLink Recovery Error Counter total for all Lanes
# NvLink Bandwidth Counters
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L0 = 60 # NVLink Bandwidth Counter for Counter Set 0, Lane 0
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L1 = 61 # NVLink Bandwidth Counter for Counter Set 0, Lane 1
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L2 = 62 # NVLink Bandwidth Counter for Counter Set 0, Lane 2
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L3 = 63 # NVLink Bandwidth Counter for Counter Set 0, Lane 3
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L4 = 64 # NVLink Bandwidth Counter for Counter Set 0, Lane 4
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L5 = 65 # NVLink Bandwidth Counter for Counter Set 0, Lane 5
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_TOTAL = 66 # NVLink Bandwidth Counter Total for Counter Set 0, All Lanes
# NvLink Bandwidth Counters
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L0 = 67 # NVLink Bandwidth Counter for Counter Set 1, Lane 0
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L1 = 68 # NVLink Bandwidth Counter for Counter Set 1, Lane 1
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L2 = 69 # NVLink Bandwidth Counter for Counter Set 1, Lane 2
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L3 = 70 # NVLink Bandwidth Counter for Counter Set 1, Lane 3
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L4 = 71 # NVLink Bandwidth Counter for Counter Set 1, Lane 4
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L5 = 72 # NVLink Bandwidth Counter for Counter Set 1, Lane 5
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_TOTAL = 73 # NVLink Bandwidth Counter Total for Counter Set 1, All Lanes
# Perf Policy Counters
NVML_FI_DEV_PERF_POLICY_POWER = 74 # Perf Policy Counter for Power Policy
NVML_FI_DEV_PERF_POLICY_THERMAL = 75 # Perf Policy Counter for Thermal Policy
NVML_FI_DEV_PERF_POLICY_SYNC_BOOST = 76 # Perf Policy Counter for Sync boost Policy
NVML_FI_DEV_PERF_POLICY_BOARD_LIMIT = 77 # Perf Policy Counter for Board Limit
NVML_FI_DEV_PERF_POLICY_LOW_UTILIZATION = 78 # Perf Policy Counter for Low GPU Utilization Policy
NVML_FI_DEV_PERF_POLICY_RELIABILITY = 79 # Perf Policy Counter for Reliability Policy
NVML_FI_DEV_PERF_POLICY_TOTAL_APP_CLOCKS = 80 # Perf Policy Counter for Total App Clock Policy
NVML_FI_DEV_PERF_POLICY_TOTAL_BASE_CLOCKS = 81 # Perf Policy Counter for Total Base Clocks Policy
# Memory temperatures
NVML_FI_DEV_MEMORY_TEMP = 82 # Memory temperature for the device
# Energy Counter
NVML_FI_DEV_TOTAL_ENERGY_CONSUMPTION = 83 # Total energy consumption for the GPU in mJ since the driver was last reloaded
# NVLink Speed
NVML_FI_DEV_NVLINK_SPEED_MBPS_L0 = 84
NVML_FI_DEV_NVLINK_SPEED_MBPS_L1 = 85
NVML_FI_DEV_NVLINK_SPEED_MBPS_L2 = 86
NVML_FI_DEV_NVLINK_SPEED_MBPS_L3 = 87
NVML_FI_DEV_NVLINK_SPEED_MBPS_L4 = 88
NVML_FI_DEV_NVLINK_SPEED_MBPS_L5 = 89
NVML_FI_DEV_NVLINK_SPEED_MBPS_COMMON = 90
# NVLink Link Count
NVML_FI_DEV_NVLINK_LINK_COUNT = 91
# Page Retirement pending fields
NVML_FI_DEV_RETIRED_PENDING_SBE = 92
NVML_FI_DEV_RETIRED_PENDING_DBE = 93
# PCIe replay and replay rollover counters
NVML_FI_DEV_PCIE_REPLAY_COUNTER = 94
NVML_FI_DEV_PCIE_REPLAY_ROLLOVER_COUNTER = 95
# NvLink Flit Error Counters
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L6 = 96 # NVLink flow control CRC Error Counter for Lane 6
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L7 = 97 # NVLink flow control CRC Error Counter for Lane 7
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L8 = 98 # NVLink flow control CRC Error Counter for Lane 8
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L9 = 99 # NVLink flow control CRC Error Counter for Lane 9
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L10 = 100 # NVLink flow control CRC Error Counter for Lane 10
NVML_FI_DEV_NVLINK_CRC_FLIT_ERROR_COUNT_L11 = 101 # NVLink flow control CRC Error Counter for Lane 11
# NvLink CRC Data Error Counters
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L6 = 102 # NVLink data CRC Error Counter for Lane 6
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L7 = 103 # NVLink data CRC Error Counter for Lane 7
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L8 = 104 # NVLink data CRC Error Counter for Lane 8
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L9 = 105 # NVLink data CRC Error Counter for Lane 9
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L10 = 106 # NVLink data CRC Error Counter for Lane 10
NVML_FI_DEV_NVLINK_CRC_DATA_ERROR_COUNT_L11 = 107 # NVLink data CRC Error Counter for Lane 11
# NvLink Replay Error Counters
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L6 = 108 # NVLink Replay Error Counter for Lane 6
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L7 = 109 # NVLink Replay Error Counter for Lane 7
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L8 = 110 # NVLink Replay Error Counter for Lane 8
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L9 = 111 # NVLink Replay Error Counter for Lane 9
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L10 = 112 # NVLink Replay Error Counter for Lane 10
NVML_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_L11 = 113 # NVLink Replay Error Counter for Lane 11
# NvLink Recovery Error Counters
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L6 = 114 # NVLink Recovery Error Counter for Lane 6
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L7 = 115 # NVLink Recovery Error Counter for Lane 7
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L8 = 116 # NVLink Recovery Error Counter for Lane 8
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L9 = 117 # NVLink Recovery Error Counter for Lane 9
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L10 = 118 # NVLink Recovery Error Counter for Lane 10
NVML_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_L11 = 119 # NVLink Recovery Error Counter for Lane 11
# NvLink Bandwidth Counters
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L6 = 120 # NVLink Bandwidth Counter for Counter Set 0, Lane 6
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L7 = 121 # NVLink Bandwidth Counter for Counter Set 0, Lane 7
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L8 = 122 # NVLink Bandwidth Counter for Counter Set 0, Lane 8
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L9 = 123 # NVLink Bandwidth Counter for Counter Set 0, Lane 9
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L10 = 124 # NVLink Bandwidth Counter for Counter Set 0, Lane 10
NVML_FI_DEV_NVLINK_BANDWIDTH_C0_L11 = 125 # NVLink Bandwidth Counter for Counter Set 0, Lane 11
# NvLink Bandwidth Counters
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L6 = 126 # NVLink Bandwidth Counter for Counter Set 1, Lane 6
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L7 = 127 # NVLink Bandwidth Counter for Counter Set 1, Lane 7
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L8 = 128 # NVLink Bandwidth Counter for Counter Set 1, Lane 8
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L9 = 129 # NVLink Bandwidth Counter for Counter Set 1, Lane 9
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L10 = 130 # NVLink Bandwidth Counter for Counter Set 1, Lane 10
NVML_FI_DEV_NVLINK_BANDWIDTH_C1_L11 = 131 # NVLink Bandwidth Counter for Counter Set 1, Lane 11
# NVLink Speed
NVML_FI_DEV_NVLINK_SPEED_MBPS_L6 = 132
NVML_FI_DEV_NVLINK_SPEED_MBPS_L7 = 133
NVML_FI_DEV_NVLINK_SPEED_MBPS_L8 = 134
NVML_FI_DEV_NVLINK_SPEED_MBPS_L9 = 135
NVML_FI_DEV_NVLINK_SPEED_MBPS_L10 = 136
NVML_FI_DEV_NVLINK_SPEED_MBPS_L11 = 137
# NVLink Throughput Counters
NVML_FI_DEV_NVLINK_THROUGHPUT_DATA_TX = 138 # NVLink TX Data throughput in KiB
NVML_FI_DEV_NVLINK_THROUGHPUT_DATA_RX = 139 # NVLink RX Data throughput in KiB
NVML_FI_DEV_NVLINK_THROUGHPUT_RAW_TX = 140 # NVLink TX Data + protocol overhead in KiB
NVML_FI_DEV_NVLINK_THROUGHPUT_RAW_RX = 141 # NVLink RX Data + protocol overhead in KiB
# Row Remapper
NVML_FI_DEV_REMAPPED_COR = 142
NVML_FI_DEV_REMAPPED_UNC = 143
NVML_FI_DEV_REMAPPED_PENDING = 144
NVML_FI_DEV_REMAPPED_FAILURE = 145
# Remote device NVLink ID
NVML_FI_DEV_NVLINK_REMOTE_NVLINK_ID = 146
# Number of NVLinks connected to NVSwitch
NVML_FI_DEV_NVSWITCH_CONNECTED_LINK_COUNT = 147
# NvLink ECC Data Error Counters
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L0 = 148 # < NVLink data ECC Error Counter for Link 0
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L1 = 149 # < NVLink data ECC Error Counter for Link 1
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L2 = 150 # < NVLink data ECC Error Counter for Link 2
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L3 = 151 # < NVLink data ECC Error Counter for Link 3
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L4 = 152 # < NVLink data ECC Error Counter for Link 4
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L5 = 153 # < NVLink data ECC Error Counter for Link 5
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L6 = 154 # < NVLink data ECC Error Counter for Link 6
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L7 = 155 # < NVLink data ECC Error Counter for Link 7
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L8 = 156 # < NVLink data ECC Error Counter for Link 8
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L9 = 157 # < NVLink data ECC Error Counter for Link 9
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L10 = 158 # < NVLink data ECC Error Counter for Link 10
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_L11 = 159 # < NVLink data ECC Error Counter for Link 11
NVML_FI_DEV_NVLINK_ECC_DATA_ERROR_COUNT_TOTAL = 160 # < NvLink data ECC Error Counter total for all Links
NVML_FI_DEV_NVLINK_ERROR_DL_REPLAY = 161
NVML_FI_DEV_NVLINK_ERROR_DL_RECOVERY = 162
NVML_FI_DEV_NVLINK_ERROR_DL_CRC = 163
NVML_FI_DEV_NVLINK_GET_SPEED = 164
NVML_FI_DEV_NVLINK_GET_STATE = 165
NVML_FI_DEV_NVLINK_GET_VERSION = 166
NVML_FI_DEV_NVLINK_GET_POWER_STATE = 167
NVML_FI_DEV_NVLINK_GET_POWER_THRESHOLD = 168
NVML_FI_DEV_PCIE_L0_TO_RECOVERY_COUNTER = 169
NVML_FI_MAX = 170 # One greater than the largest field ID defined above
## Enums needed for the method nvmlDeviceGetVirtualizationMode and nvmlDeviceSetVirtualizationMode
NVML_GPU_VIRTUALIZATION_MODE_NONE = 0 # Represents Bare Metal GPU
NVML_GPU_VIRTUALIZATION_MODE_PASSTHROUGH = 1 # Device is associated with GPU-Passthorugh
NVML_GPU_VIRTUALIZATION_MODE_VGPU = 2 # Device is associated with vGPU inside virtual machine.
NVML_GPU_VIRTUALIZATION_MODE_HOST_VGPU = 3 # Device is associated with VGX hypervisor in vGPU mode
NVML_GPU_VIRTUALIZATION_MODE_HOST_VSGA = 4 # Device is associated with VGX hypervisor in vSGA mode
## Lib loading ##
nvmlLib = None
libLoadLock = threading.Lock()
_nvmlLib_refcount = 0 # Incremented on each nvmlInit and decremented on nvmlShutdown
## vGPU Management
_nvmlVgpuTypeId_t = c_uint
_nvmlVgpuInstance_t = c_uint
_nvmlVgpuVmIdType_t = c_uint
NVML_VGPU_VM_ID_DOMAIN_ID = 0
NVML_VGPU_VM_ID_UUID = 1
_nvmlGridLicenseFeatureCode_t = c_uint
NVML_GRID_LICENSE_FEATURE_CODE_UNKNOWN = 0
NVML_GRID_LICENSE_FEATURE_CODE_VGPU = 1
NVML_GRID_LICENSE_FEATURE_CODE_NVIDIA_RTX = 2
NVML_GRID_LICENSE_FEATURE_CODE_VWORKSTATION = 2 # deprecated, use NVML_GRID_LICENSE_FEATURE_CODE_NVIDIA_RTX.
NVML_GRID_LICENSE_FEATURE_CODE_GAMING = 3
NVML_GRID_LICENSE_FEATURE_CODE_COMPUTE = 4
_nvmlGridLicenseExpiryStatus_t = c_uint8
NVML_GRID_LICENSE_EXPIRY_NOT_AVAILABLE = 0 # Expiry information not available
NVML_GRID_LICENSE_EXPIRY_INVALID = 1 # Invalid expiry or error fetching expiry
NVML_GRID_LICENSE_EXPIRY_VALID = 2 # Valid expiry
NVML_GRID_LICENSE_EXPIRY_NOT_APPLICABLE = 3 # Expiry not applicable
NVML_GRID_LICENSE_EXPIRY_PERMANENT = 4 # Permanent expiry
_nvmlVgpuCapability_t = c_uint
NVML_VGPU_CAP_NVLINK_P2P = 0 # vGPU P2P over NVLink is supported
NVML_VGPU_CAP_GPUDIRECT = 1 # GPUDirect capability is supported
NVML_VGPU_CAP_MULTI_VGPU_EXCLUSIVE = 2 # vGPU profile cannot be mixed with other vGPU profiles in same VM
NVML_VGPU_CAP_EXCLUSIVE_TYPE = 3 # vGPU profile cannot run on a GPU alongside other profiles of different type
NVML_VGPU_CAP_EXCLUSIVE_SIZE = 4 # vGPU profile cannot run on a GPU alongside other profiles of different size
NVML_VGPU_CAP_COUNT = 5
_nvmlVgpuDriverCapability_t = c_uint
NVML_VGPU_DRIVER_CAP_HETEROGENEOUS_MULTI_VGPU = 0 # Supports mixing of different vGPU profiles within one guest VM
NVML_VGPU_DRIVER_CAP_COUNT = 1
_nvmlDeviceVgpuCapability_t = c_uint
NVML_DEVICE_VGPU_CAP_FRACTIONAL_MULTI_VGPU = 0 # Fractional vGPU profiles on this GPU can be used in multi-vGPU configurations
NVML_DEVICE_VGPU_CAP_HETEROGENEOUS_TIMESLICE_PROFILES = 1 # Supports concurrent execution of timesliced vGPU profiles of differing types
NVML_DEVICE_VGPU_CAP_HETEROGENEOUS_TIMESLICE_SIZES = 2 # Supports concurrent execution of timesliced vGPU profiles of differing framebuffer sizes
NVML_DEVICE_VGPU_CAP_READ_DEVICE_BUFFER_BW = 3 # GPU device's read_device_buffer expected bandwidth capacity in megabytes per second
NVML_DEVICE_VGPU_CAP_WRITE_DEVICE_BUFFER_BW = 4 # GPU device's write_device_buffer expected bandwidth capacity in megabytes per second
NVML_DEVICE_VGPU_CAP_COUNT = 5
_nvmlVgpuGuestInfoState_t = c_uint
NVML_VGPU_INSTANCE_GUEST_INFO_STATE_UNINITIALIZED = 0
NVML_VGPU_INSTANCE_GUEST_INFO_STATE_INITIALIZED = 1
_nvmlVgpuVmCompatibility_t = c_uint
NVML_VGPU_VM_COMPATIBILITY_NONE = 0x0
NVML_VGPU_VM_COMPATIBILITY_COLD = 0x1
NVML_VGPU_VM_COMPATIBILITY_HIBERNATE = 0x2
NVML_VGPU_VM_COMPATIBILITY_SLEEP = 0x4
NVML_VGPU_VM_COMPATIBILITY_LIVE = 0x8
_nvmlVgpuPgpuCompatibilityLimitCode_t = c_uint
NVML_VGPU_COMPATIBILITY_LIMIT_NONE = 0x0
NVML_VGPU_COMPATIBILITY_LIMIT_HOST_DRIVER = 0x1
NVML_VGPU_COMPATIBILITY_LIMIT_GUEST_DRIVER = 0x2
NVML_VGPU_COMPATIBILITY_LIMIT_GPU = 0x4
NVML_VGPU_COMPATIBILITY_LIMIT_OTHER = 0x80000000
_nvmlHostVgpuMode_t = c_uint
NVML_HOST_VGPU_MODE_NON_SRIOV = 0
NVML_HOST_VGPU_MODE_SRIOV = 1
# GSP firmware
NVML_GSP_FIRMWARE_VERSION_BUF_SIZE = 0x40
## Error Checking ##
class NVMLError(Exception):
_valClassMapping = dict()
# List of currently known error codes
_errcode_to_string = {
NVML_ERROR_UNINITIALIZED: "Uninitialized",
NVML_ERROR_INVALID_ARGUMENT: "Invalid Argument",
NVML_ERROR_NOT_SUPPORTED: "Not Supported",
NVML_ERROR_NO_PERMISSION: "Insufficient Permissions",
NVML_ERROR_ALREADY_INITIALIZED: "Already Initialized",
NVML_ERROR_NOT_FOUND: "Not Found",
NVML_ERROR_INSUFFICIENT_SIZE: "Insufficient Size",
NVML_ERROR_INSUFFICIENT_POWER: "Insufficient External Power",
NVML_ERROR_DRIVER_NOT_LOADED: "Driver Not Loaded",
NVML_ERROR_TIMEOUT: "Timeout",
NVML_ERROR_IRQ_ISSUE: "Interrupt Request Issue",
NVML_ERROR_LIBRARY_NOT_FOUND: "NVML Shared Library Not Found",
NVML_ERROR_FUNCTION_NOT_FOUND: "Function Not Found",
NVML_ERROR_CORRUPTED_INFOROM: "Corrupted infoROM",
NVML_ERROR_GPU_IS_LOST: "GPU is lost",
NVML_ERROR_RESET_REQUIRED: "GPU requires restart",
NVML_ERROR_OPERATING_SYSTEM: "The operating system has blocked the request.",
NVML_ERROR_LIB_RM_VERSION_MISMATCH: "RM has detected an NVML/RM version mismatch.",
NVML_ERROR_MEMORY: "Insufficient Memory",
NVML_ERROR_UNKNOWN: "Unknown Error",
}
def __new__(typ, value):
'''
Maps value to a proper subclass of NVMLError.
See _extractNVMLErrorsAsClasses function for more details
'''
if typ == NVMLError:
typ = NVMLError._valClassMapping.get(value, typ)
obj = Exception.__new__(typ)
obj.value = value
return obj
def __str__(self):
try:
if self.value not in NVMLError._errcode_to_string:
NVMLError._errcode_to_string[self.value] = str(nvmlErrorString(self.value))
return NVMLError._errcode_to_string[self.value]
except NVMLError:
return "NVML Error with code %d" % self.value
def __eq__(self, other):
return self.value == other.value
def nvmlExceptionClass(nvmlErrorCode):
if nvmlErrorCode not in NVMLError._valClassMapping:
raise ValueError('nvmlErrorCode %s is not valid' % nvmlErrorCode)
return NVMLError._valClassMapping[nvmlErrorCode]
def _extractNVMLErrorsAsClasses():
'''
Generates a hierarchy of classes on top of NVMLError class.
Each NVML Error gets a new NVMLError subclass. This way try,except blocks can filter appropriate
exceptions more easily.
NVMLError is a parent class. Each NVML_ERROR_* gets it's own subclass.
e.g. NVML_ERROR_ALREADY_INITIALIZED will be turned into NVMLError_AlreadyInitialized
'''
this_module = sys.modules[__name__]
nvmlErrorsNames = [x for x in dir(this_module) if x.startswith("NVML_ERROR_")]
for err_name in nvmlErrorsNames:
# e.g. Turn NVML_ERROR_ALREADY_INITIALIZED into NVMLError_AlreadyInitialized
class_name = "NVMLError_" + string.capwords(err_name.replace("NVML_ERROR_", ""), "_").replace("_", "")
err_val = getattr(this_module, err_name)
def gen_new(val):
def new(typ):
obj = NVMLError.__new__(typ, val)
return obj
return new
new_error_class = type(class_name, (NVMLError,), {'__new__': gen_new(err_val)})
new_error_class.__module__ = __name__
setattr(this_module, class_name, new_error_class)
NVMLError._valClassMapping[err_val] = new_error_class
_extractNVMLErrorsAsClasses()
def _nvmlCheckReturn(ret):
if (ret != NVML_SUCCESS):
raise NVMLError(ret)
return ret
## Function access ##
_nvmlGetFunctionPointer_cache = dict() # function pointers are cached to prevent unnecessary libLoadLock locking
def _nvmlGetFunctionPointer(name):
global nvmlLib
if name in _nvmlGetFunctionPointer_cache:
return _nvmlGetFunctionPointer_cache[name]
libLoadLock.acquire()
try:
# ensure library was loaded
if nvmlLib is None:
raise NVMLError(NVML_ERROR_UNINITIALIZED)
try:
_nvmlGetFunctionPointer_cache[name] = getattr(nvmlLib, name)
return _nvmlGetFunctionPointer_cache[name]
except AttributeError:
raise NVMLError(NVML_ERROR_FUNCTION_NOT_FOUND)
finally:
# lock is always freed
libLoadLock.release()
## Alternative object
# Allows the object to be printed
# Allows mismatched types to be assigned
# - like None when the Structure variant requires c_uint
class nvmlFriendlyObject(object):
def __init__(self, dictionary):
for x in dictionary:
setattr(self, x, dictionary[x])
def __str__(self):
return self.__dict__.__str__()
def nvmlStructToFriendlyObject(struct):
d = {}
for x in struct._fields_:
key = x[0]
value = getattr(struct, key)
# only need to convert from bytes if bytes, no need to check python version.
d[key] = value.decode() if isinstance(value, bytes) else value
obj = nvmlFriendlyObject(d)
return obj
# pack the object so it can be passed to the NVML library
def nvmlFriendlyObjectToStruct(obj, model):
for x in model._fields_:
key = x[0]
value = obj.__dict__[key]
# any c_char_p in python3 needs to be bytes, default encoding works fine.
if sys.version_info >= (3,):
setattr(model, key, value.encode())
else:
setattr(model, key, value)
return model
## Unit structures
class struct_c_nvmlUnit_t(Structure):
pass # opaque handle
c_nvmlUnit_t = POINTER(struct_c_nvmlUnit_t)
class _PrintableStructure(Structure):
"""
Abstract class that produces nicer __str__ output than ctypes.Structure.
e.g. instead of:
>>> print str(obj)
<class_name object at 0x7fdf82fef9e0>
this class will print
class_name(field_name: formatted_value, field_name: formatted_value)
_fmt_ dictionary of <str _field_ name> -> <str format>
e.g. class that has _field_ 'hex_value', c_uint could be formatted with
_fmt_ = {"hex_value" : "%08X"}
to produce nicer output.
Default fomratting string for all fields can be set with key "<default>" like:
_fmt_ = {"<default>" : "%d MHz"} # e.g all values are numbers in MHz.
If not set it's assumed to be just "%s"
Exact format of returned str from this class is subject to change in the future.
"""
_fmt_ = {}
def __str__(self):
result = []
for x in self._fields_:
key = x[0]
value = getattr(self, key)
fmt = "%s"
if key in self._fmt_:
fmt = self._fmt_[key]
elif "<default>" in self._fmt_:
fmt = self._fmt_["<default>"]
result.append(("%s: " + fmt) % (key, value))
return self.__class__.__name__ + "(" + ", ".join(result) + ")"
def __getattribute__(self, name):
res = super(_PrintableStructure, self).__getattribute__(name)
# need to convert bytes to unicode for python3 don't need to for python2
# Python 2 strings are of both str and bytes
# Python 3 strings are not of type bytes
# ctypes should convert everything to the correct values otherwise
if isinstance(res, bytes):
if isinstance(res, str):
return res
return res.decode()
return res
def __setattr__(self, name, value):
if isinstance(value, str):
# encoding a python2 string returns the same value, since python2 strings are bytes already
# bytes passed in python3 will be ignored.
value = value.encode()
super(_PrintableStructure, self).__setattr__(name, value)
class c_nvmlUnitInfo_t(_PrintableStructure):
_fields_ = [
('name', c_char * 96),
('id', c_char * 96),
('serial', c_char * 96),
('firmwareVersion', c_char * 96),
]
class c_nvmlLedState_t(_PrintableStructure):
_fields_ = [
('cause', c_char * 256),
('color', _nvmlLedColor_t),
]
class c_nvmlPSUInfo_t(_PrintableStructure):
_fields_ = [
('state', c_char * 256),
('current', c_uint),
('voltage', c_uint),
('power', c_uint),
]
class c_nvmlUnitFanInfo_t(_PrintableStructure):
_fields_ = [
('speed', c_uint),
('state', _nvmlFanState_t),
]
class c_nvmlUnitFanSpeeds_t(_PrintableStructure):
_fields_ = [
('fans', c_nvmlUnitFanInfo_t * 24),
('count', c_uint)
]
## Device structures
class struct_c_nvmlDevice_t(Structure):
pass # opaque handle
c_nvmlDevice_t = POINTER(struct_c_nvmlDevice_t)
# Legacy pciInfo used for _v1 and _v2
class nvmlPciInfo_v2_t(_PrintableStructure):
_fields_ = [
('busId', c_char * NVML_DEVICE_PCI_BUS_ID_BUFFER_V2_SIZE),
('domain', c_uint),
('bus', c_uint),
('device', c_uint),
('pciDeviceId', c_uint),
# Added in 2.285
('pciSubSystemId', c_uint),
('reserved0', c_uint),
('reserved1', c_uint),
('reserved2', c_uint),
('reserved3', c_uint),
]
_fmt_ = {
'domain': "0x%04X",
'bus': "0x%02X",
'device': "0x%02X",
'pciDeviceId': "0x%08X",
'pciSubSystemId': "0x%08X",
}
class nvmlPciInfo_t(_PrintableStructure):
_fields_ = [
# Moved to the new busId location below
('busIdLegacy', c_char * NVML_DEVICE_PCI_BUS_ID_BUFFER_V2_SIZE),
('domain', c_uint),
('bus', c_uint),
('device', c_uint),
('pciDeviceId', c_uint),
# Added in 2.285
('pciSubSystemId', c_uint),
# New busId replaced the long deprecated and reserved fields with a
# field of the same size in 9.0
('busId', c_char * NVML_DEVICE_PCI_BUS_ID_BUFFER_SIZE),
]
_fmt_ = {
'domain': "0x%08X",
'bus': "0x%02X",
'device': "0x%02X",
'pciDeviceId': "0x%08X",
'pciSubSystemId': "0x%08X",
}
class c_nvmlExcludedDeviceInfo_t(_PrintableStructure):
_fields_ = [
('pci', nvmlPciInfo_t),
('uuid', c_char * NVML_DEVICE_UUID_BUFFER_SIZE)
]
class nvmlNvLinkUtilizationControl_t(_PrintableStructure):
_fields_ = [
('units', _nvmlNvLinkUtilizationCountUnits_t),
('pktfilter', _nvmlNvLinkUtilizationCountPktTypes_t),
]
class c_nvmlMemory_t(_PrintableStructure):
_fields_ = [
('total', c_ulonglong),
('free', c_ulonglong),
('used', c_ulonglong),
]
_fmt_ = {'<default>': "%d B"}
class c_nvmlMemory_v2_t(_PrintableStructure):
_fields_ = [
('version', c_uint),
('total', c_ulonglong),
('reserved', c_ulonglong),
('free', c_ulonglong),
('used', c_ulonglong),
]
_fmt_ = {'<default>': "%d B"}
nvmlMemory_v2 = 0x02000028
class c_nvmlBAR1Memory_t(_PrintableStructure):
_fields_ = [
('bar1Total', c_ulonglong),
('bar1Free', c_ulonglong),
('bar1Used', c_ulonglong),
]
_fmt_ = {'<default>': "%d B"}
class nvmlClkMonFaultInfo_t(Structure):
_fields_ = [("clkApiDomain", c_uint),
("clkDomainFaultMask", c_uint)
]
class nvmlClkMonStatus_t(Structure):
_fields_ = [("bGlobalStatus", c_uint),
("clkMonListSize", c_uint),
("clkMonList", nvmlClkMonFaultInfo_t)
]
# On Windows with the WDDM driver, usedGpuMemory is reported as None
# Code that processes this structure should check for None, I.E.
#
# if (info.usedGpuMemory == None):
# # TODO handle the error
# pass
# else:
# print("Using %d MiB of memory" % (info.usedGpuMemory / 1024 / 1024))
# endif
#
# See NVML documentation for more information
class c_nvmlProcessInfo_t(_PrintableStructure):
_fields_ = [
('pid', c_uint),
('usedGpuMemory', c_ulonglong),
('gpuInstanceId', c_uint),
('computeInstanceId', c_uint),
]
_fmt_ = {'usedGpuMemory': "%d B",
}
class c_nvmlBridgeChipInfo_t(_PrintableStructure):
_fields_ = [
('type', _nvmlBridgeChipType_t),
('fwVersion', c_uint),
]
class c_nvmlBridgeChipHierarchy_t(_PrintableStructure):
_fields_ = [
('bridgeCount', c_uint),
('bridgeChipInfo', c_nvmlBridgeChipInfo_t * 128),
]
class c_nvmlEccErrorCounts_t(_PrintableStructure):
_fields_ = [
('l1Cache', c_ulonglong),
('l2Cache', c_ulonglong),
('deviceMemory', c_ulonglong),
('registerFile', c_ulonglong),
]
class c_nvmlUtilization_t(_PrintableStructure):
_fields_ = [
('gpu', c_uint),
('memory', c_uint),
]
_fmt_ = {'<default>': "%d %%"}
# Added in 2.285
class c_nvmlHwbcEntry_t(_PrintableStructure):
_fields_ = [
('hwbcId', c_uint),
('firmwareVersion', c_char * 32),
]
class c_nvmlValue_t(Union):
_fields_ = [
('dVal', c_double),
('uiVal', c_uint),
('ulVal', c_ulong),
('ullVal', c_ulonglong),
('sllVal', c_longlong),
]
class c_nvmlSample_t(_PrintableStructure):
_fields_ = [
('timeStamp', c_ulonglong),
('sampleValue', c_nvmlValue_t),
]
class c_nvmlViolationTime_t(_PrintableStructure):
_fields_ = [
('referenceTime', c_ulonglong),
('violationTime', c_ulonglong),
]
class c_nvmlFieldValue_t(_PrintableStructure):
_fields_ = [
('fieldId', c_uint32),
('scopeId', c_uint32),
('timestamp', c_int64),
('latencyUsec', c_int64),
('valueType', _nvmlValueType_t),
('nvmlReturn', _nvmlReturn_t),
('value', c_nvmlValue_t)
]
class c_nvmlVgpuInstanceUtilizationSample_t(_PrintableStructure):
_fields_ = [
('vgpuInstance', _nvmlVgpuInstance_t),
('timeStamp', c_ulonglong),
('smUtil', c_nvmlValue_t),
('memUtil', c_nvmlValue_t),
('encUtil', c_nvmlValue_t),
('decUtil', c_nvmlValue_t),
]
class c_nvmlVgpuProcessUtilizationSample_t(_PrintableStructure):
_fields_ = [
('vgpuInstance', _nvmlVgpuInstance_t),
('pid', c_uint),
('processName', c_char * NVML_VGPU_NAME_BUFFER_SIZE),
('timeStamp', c_ulonglong),
('smUtil', c_uint),
('memUtil', c_uint),
('encUtil', c_uint),
('decUtil', c_uint),
]
class c_nvmlVgpuLicenseExpiry_t(_PrintableStructure):
_fields_ = [
('year', c_uint32),
('month', c_uint16),
('day', c_uint16),
('hour', c_uint16),
('min', c_uint16),
('sec', c_uint16),
('status', c_uint8),
]
NVML_GRID_LICENSE_STATE_UNKNOWN = 0
NVML_GRID_LICENSE_STATE_UNINITIALIZED = 1
NVML_GRID_LICENSE_STATE_UNLICENSED_UNRESTRICTED = 2
NVML_GRID_LICENSE_STATE_UNLICENSED_RESTRICTED = 3
NVML_GRID_LICENSE_STATE_UNLICENSED = 4
NVML_GRID_LICENSE_STATE_LICENSED = 5
class c_nvmlVgpuLicenseInfo_t(_PrintableStructure):
_fields_ = [
('isLicensed', c_uint8),
('licenseExpiry', c_nvmlVgpuLicenseExpiry_t),
('currentState', c_uint),
]
class c_nvmlEncoderSession_t(_PrintableStructure):
_fields_ = [
('sessionId', c_uint),
('pid', c_uint),
('vgpuInstance', _nvmlVgpuInstance_t),
('codecType', c_uint),
('hResolution', c_uint),
('vResolution', c_uint),
('averageFps', c_uint),
('encodeLatency', c_uint),
]
class c_nvmlProcessUtilizationSample_t(_PrintableStructure):
_fields_ = [
('pid', c_uint),
('timeStamp', c_ulonglong),
('smUtil', c_uint),
('memUtil', c_uint),
('encUtil', c_uint),
('decUtil', c_uint),
]
class c_nvmlGridLicenseExpiry_t(_PrintableStructure):
_fields_ = [
('year', c_uint32),
('month', c_uint16),
('day', c_uint16),
('hour', c_uint16),
('min', c_uint16),
('sec', c_uint16),
('status', c_uint8),
]
class c_nvmlGridLicensableFeature_v4_t(_PrintableStructure):
_fields_ = [
('featureCode', _nvmlGridLicenseFeatureCode_t),
('featureState', c_uint),
('licenseInfo', c_char * NVML_GRID_LICENSE_BUFFER_SIZE),
('productName', c_char * NVML_GRID_LICENSE_BUFFER_SIZE),
('featureEnabled', c_uint),
('licenseExpiry', c_nvmlGridLicenseExpiry_t),
]
class c_nvmlGridLicensableFeatures_v4_t(_PrintableStructure):
_fields_ = [
('isGridLicenseSupported', c_int),
('licensableFeaturesCount', c_uint),
('gridLicensableFeatures', c_nvmlGridLicensableFeature_v4_t * NVML_GRID_LICENSE_FEATURE_MAX_COUNT),
]
class c_nvmlGridLicensableFeature_v3_t(_PrintableStructure):
_fields_ = [
('featureCode', _nvmlGridLicenseFeatureCode_t),
('featureState', c_uint),
('licenseInfo', c_char * NVML_GRID_LICENSE_BUFFER_SIZE),
('productName', c_char * NVML_GRID_LICENSE_BUFFER_SIZE),
('featureEnabled', c_uint),
]
class c_nvmlGridLicensableFeatures_v3_t(_PrintableStructure):
_fields_ = [
('isGridLicenseSupported', c_int),
('licensableFeaturesCount', c_uint),
('gridLicensableFeatures', c_nvmlGridLicensableFeature_v3_t * NVML_GRID_LICENSE_FEATURE_MAX_COUNT),
]
class c_nvmlGridLicensableFeature_v2_t(_PrintableStructure):
_fields_ = [
('featureCode', _nvmlGridLicenseFeatureCode_t),
('featureState', c_uint),
('licenseInfo', c_char * NVML_GRID_LICENSE_BUFFER_SIZE),
('productName', c_char * NVML_GRID_LICENSE_BUFFER_SIZE),
]
class c_nvmlGridLicensableFeatures_v2_t(_PrintableStructure):
_fields_ = [
('isGridLicenseSupported', c_int),
('licensableFeaturesCount', c_uint),
('gridLicensableFeatures', c_nvmlGridLicensableFeature_v2_t * NVML_GRID_LICENSE_FEATURE_MAX_COUNT),
]
class c_nvmlGridLicensableFeature_t(_PrintableStructure):
_fields_ = [
('featureCode', _nvmlGridLicenseFeatureCode_t),
('featureState', c_uint),
('licenseInfo', c_char * NVML_GRID_LICENSE_BUFFER_SIZE),
]
class c_nvmlGridLicensableFeatures_t(_PrintableStructure):
_fields_ = [
('isGridLicenseSupported', c_int),
('licensableFeaturesCount', c_uint),
('gridLicensableFeatures', c_nvmlGridLicensableFeature_t * NVML_GRID_LICENSE_FEATURE_MAX_COUNT),
]
## Event structures
class struct_c_nvmlEventSet_t(Structure):
pass # opaque handle
c_nvmlEventSet_t = POINTER(struct_c_nvmlEventSet_t)
nvmlEventTypeSingleBitEccError = 0x0000000000000001
nvmlEventTypeDoubleBitEccError = 0x0000000000000002
nvmlEventTypePState = 0x0000000000000004
nvmlEventTypeXidCriticalError = 0x0000000000000008
nvmlEventTypeClock = 0x0000000000000010
nvmlEventTypePowerSourceChange = 0x0000000000000080
nvmlEventMigConfigChange = 0x0000000000000100
nvmlEventTypeNone = 0x0000000000000000
nvmlEventTypeAll = (
nvmlEventTypeNone
| nvmlEventTypeSingleBitEccError
| nvmlEventTypeDoubleBitEccError
| nvmlEventTypePState
| nvmlEventTypeClock
| nvmlEventTypePowerSourceChange
| nvmlEventTypeXidCriticalError
| nvmlEventMigConfigChange
)
## Clock Throttle Reasons defines
nvmlClocksThrottleReasonGpuIdle = 0x0000000000000001
nvmlClocksThrottleReasonApplicationsClocksSetting = 0x0000000000000002
nvmlClocksThrottleReasonUserDefinedClocks = nvmlClocksThrottleReasonApplicationsClocksSetting # deprecated, use nvmlClocksThrottleReasonApplicationsClocksSetting
nvmlClocksThrottleReasonSwPowerCap = 0x0000000000000004
nvmlClocksThrottleReasonHwSlowdown = 0x0000000000000008
nvmlClocksThrottleReasonSyncBoost = 0x0000000000000010
nvmlClocksThrottleReasonSwThermalSlowdown = 0x0000000000000020
nvmlClocksThrottleReasonHwThermalSlowdown = 0x0000000000000040
nvmlClocksThrottleReasonHwPowerBrakeSlowdown = 0x0000000000000080
nvmlClocksThrottleReasonDisplayClockSetting = 0x0000000000000100
nvmlClocksThrottleReasonNone = 0x0000000000000000
nvmlClocksThrottleReasonAll = (
nvmlClocksThrottleReasonNone |
nvmlClocksThrottleReasonGpuIdle |
nvmlClocksThrottleReasonApplicationsClocksSetting |
nvmlClocksThrottleReasonSwPowerCap |
nvmlClocksThrottleReasonHwSlowdown |
nvmlClocksThrottleReasonSyncBoost |
nvmlClocksThrottleReasonSwThermalSlowdown |
nvmlClocksThrottleReasonHwThermalSlowdown |
nvmlClocksThrottleReasonHwPowerBrakeSlowdown |
nvmlClocksThrottleReasonDisplayClockSetting
)
class c_nvmlEventData_t(_PrintableStructure):
_fields_ = [
('device', c_nvmlDevice_t),
('eventType', c_ulonglong),
('eventData', c_ulonglong),
('gpuInstanceId', c_uint),
('computeInstanceId', c_uint)
]
_fmt_ = {'eventType': "0x%08X"}
class c_nvmlAccountingStats_t(_PrintableStructure):
_fields_ = [
('gpuUtilization', c_uint),
('memoryUtilization', c_uint),
('maxMemoryUsage', c_ulonglong),
('time', c_ulonglong),
('startTime', c_ulonglong),
('isRunning', c_uint),
('reserved', c_uint * 5)
]
class c_nvmlVgpuVersion_t(Structure):
_fields_ = [("minVersion", c_uint),
("maxVersion", c_uint)
]
class c_nvmlVgpuMetadata_t(_PrintableStructure):
_fields_ = [("version", c_uint),
("revision", c_uint),
("guestInfoState", _nvmlVgpuGuestInfoState_t),
("guestDriverVersion", c_char * NVML_SYSTEM_DRIVER_VERSION_BUFFER_SIZE),
("hostDriverVersion", c_char * NVML_SYSTEM_DRIVER_VERSION_BUFFER_SIZE),
("reserved", c_uint * 6),
("vgpuVirtualizationCaps", c_uint),
("guestVgpuVersion", c_uint),
("opaqueDataSize", c_uint),
("opaqueData", c_char * NVML_VGPU_METADATA_OPAQUE_DATA_SIZE)
]
class c_nvmlVgpuPgpuMetadata_t(_PrintableStructure):
_fields_ = [("version", c_uint),
("revision", c_uint),
("hostDriverVersion", c_char * NVML_SYSTEM_DRIVER_VERSION_BUFFER_SIZE),
("pgpuVirtualizationCaps", c_uint),
("reserved", c_uint * 5),
("hostSupportedVgpuRange", c_nvmlVgpuVersion_t),
("opaqueDataSize", c_uint),
("opaqueData", c_char * NVML_VGPU_PGPU_METADATA_OPAQUE_DATA_SIZE)
]
class c_nvmlVgpuPgpuCompatibility_t(Structure):
_fields_ = [("vgpuVmCompatibility", _nvmlVgpuVmCompatibility_t),
("compatibilityLimitCode", _nvmlVgpuPgpuCompatibilityLimitCode_t)
]
## vGPU scheduler policy defines
NVML_VGPU_SCHEDULER_POLICY_UNKNOWN = 0
NVML_VGPU_SCHEDULER_POLICY_BEST_EFFORT = 1
NVML_VGPU_SCHEDULER_POLICY_EQUAL_SHARE = 2
NVML_VGPU_SCHEDULER_POLICY_FIXED_SHARE = 3
## Supported vGPU scheduler policy count
NVML_SUPPORTED_VGPU_SCHEDULER_POLICY_COUNT = 3
NVML_SCHEDULER_SW_MAX_LOG_ENTRIES = 200
class c_nvmlVgpuSchedDataWithARR_t(_PrintableStructure):
_fields_ = [
('avgFactor', c_uint),
('timeslice', c_uint),
]
class c_nvmlVgpuSchedData_t(_PrintableStructure):
_fields_ = [
('timeslice', c_uint),
]
class c_nvmlVgpuSchedulerParams_t(Union):
_fields_ = [
('vgpuSchedDataWithARR', c_nvmlVgpuSchedDataWithARR_t),
('vgpuSchedData', c_nvmlVgpuSchedData_t),
]
class c_nvmlVgpuSchedulerLogEntry_t(_PrintableStructure):
_fields_ = [
('timestamp', c_ulonglong),
('timeRunTotal', c_ulonglong),
('timeRun', c_ulonglong),
('swRunlistId', c_uint),
('targetTimeSlice', c_ulonglong),
('cumulativePreemptionTime', c_ulonglong),
]
class c_nvmlVgpuSchedulerLog_t(_PrintableStructure):
_fields_ = [
('engineId', c_uint),
('schedulerPolicy', c_uint),
('isEnabledARR', c_uint),
('schedulerParams', c_nvmlVgpuSchedulerParams_t),
('entriesCount', c_uint),
('logEntries', c_nvmlVgpuSchedulerLogEntry_t * NVML_SCHEDULER_SW_MAX_LOG_ENTRIES),
]
class c_nvmlVgpuSchedulerGetState_t(_PrintableStructure):
_fields_ = [
('schedulerPolicy', c_uint),
('isEnabledARR', c_uint),
('schedulerParams', c_nvmlVgpuSchedulerParams_t),
]
class c_nvmlVgpuSchedSetDataWithARR_t(_PrintableStructure):
_fields_ = [
('avgFactor', c_uint),
('frequency', c_uint),
]
class c_nvmlVgpuSchedSetData_t(_PrintableStructure):
_fields_ = [
('timeslice', c_uint),
]
class c_nvmlVgpuSchedulerCapabilities_t(_PrintableStructure):
_fields_ = [
('supportedSchedulers', c_uint * NVML_SUPPORTED_VGPU_SCHEDULER_POLICY_COUNT),
('maxTimeslice', c_uint),
('minTimeslice', c_uint),
('isArrModeSupported', c_uint),
('maxFrequencyForARR', c_uint),
('minFrequencyForARR', c_uint),
('maxAvgFactorForARR', c_uint),
('minAvgFactorForARR', c_uint),
]
class c_nvmlFBCStats_t(Structure):
_fields_ = [("sessionsCount", c_uint),
("averageFPS", c_uint),
("averageLatency", c_uint)
]
class c_nvmlFBCSession_t(_PrintableStructure):
_fields_ = [
('sessionId', c_uint),
('pid', c_uint),
('vgpuInstance', _nvmlVgpuInstance_t),
('displayOrdinal', c_uint),
('sessionType', c_uint),
('sessionFlags', c_uint),
('hMaxResolution', c_uint),
('vMaxResolution', c_uint),
('hResolution', c_uint),
('vResolution', c_uint),
('averageFPS', c_uint),
('averageLatency', c_uint),
]
NVML_DEVICE_MIG_DISABLE = 0x0
NVML_DEVICE_MIG_ENABLE = 0x1
NVML_GPU_INSTANCE_PROFILE_1_SLICE = 0x0
NVML_GPU_INSTANCE_PROFILE_2_SLICE = 0x1
NVML_GPU_INSTANCE_PROFILE_3_SLICE = 0x2
NVML_GPU_INSTANCE_PROFILE_4_SLICE = 0x3
NVML_GPU_INSTANCE_PROFILE_7_SLICE = 0x4
NVML_GPU_INSTANCE_PROFILE_8_SLICE = 0x5
NVML_GPU_INSTANCE_PROFILE_6_SLICE = 0x6
NVML_GPU_INSTANCE_PROFILE_1_SLICE_REV1 = 0x7
NVML_GPU_INSTANCE_PROFILE_2_SLICE_REV1 = 0x8
NVML_GPU_INSTANCE_PROFILE_1_SLICE_REV2 = 0x9
NVML_GPU_INSTANCE_PROFILE_COUNT = 0xA
class c_nvmlGpuInstancePlacement_t(Structure):
_fields_ = [("start", c_uint),
("size", c_uint)
]
class c_nvmlGpuInstanceProfileInfo_t(Structure):
_fields_ = [("id", c_uint),
("isP2pSupported", c_uint),
("sliceCount", c_uint),
("instanceCount", c_uint),
("multiprocessorCount", c_uint),
("copyEngineCount", c_uint),
("decoderCount", c_uint),
("encoderCount", c_uint),
("jpegCount", c_uint),
("ofaCount", c_uint),
("memorySizeMB", c_ulonglong),
]
nvmlGpuInstanceProfileInfo_v2 = 0x02000098
class c_nvmlGpuInstanceProfileInfo_v2_t(_PrintableStructure):
_fields_ = [("version", c_uint),
("id", c_uint),
("isP2pSupported", c_uint),
("sliceCount", c_uint),
("instanceCount", c_uint),
("multiprocessorCount", c_uint),
("copyEngineCount", c_uint),
("decoderCount", c_uint),
("encoderCount", c_uint),
("jpegCount", c_uint),
("ofaCount", c_uint),
("memorySizeMB", c_ulonglong),
("name", c_char * NVML_DEVICE_NAME_V2_BUFFER_SIZE)
]
def __init__(self):
super(c_nvmlGpuInstanceProfileInfo_v2_t, self).__init__(version=nvmlGpuInstanceProfileInfo_v2)
class c_nvmlGpuInstanceInfo_t(Structure):
_fields_ = [("device", c_nvmlDevice_t),
("id", c_uint),
("profileId", c_uint),
("placement", c_nvmlGpuInstancePlacement_t)
]
class struct_c_nvmlGpuInstance_t(Structure):
pass # opaque handle
c_nvmlGpuInstance_t = POINTER(struct_c_nvmlGpuInstance_t)
NVML_COMPUTE_INSTANCE_PROFILE_1_SLICE = 0x0
NVML_COMPUTE_INSTANCE_PROFILE_2_SLICE = 0x1
NVML_COMPUTE_INSTANCE_PROFILE_3_SLICE = 0x2
NVML_COMPUTE_INSTANCE_PROFILE_4_SLICE = 0x3
NVML_COMPUTE_INSTANCE_PROFILE_7_SLICE = 0x4
NVML_COMPUTE_INSTANCE_PROFILE_8_SLICE = 0x5
NVML_COMPUTE_INSTANCE_PROFILE_6_SLICE = 0x6
NVML_COMPUTE_INSTANCE_PROFILE_1_SLICE_REV1 = 0x7
NVML_COMPUTE_INSTANCE_PROFILE_COUNT = 0x8
NVML_COMPUTE_INSTANCE_ENGINE_PROFILE_SHARED = 0x0
NVML_COMPUTE_INSTANCE_ENGINE_PROFILE_COUNT = 0x1
class c_nvmlComputeInstancePlacement_t(Structure):
_fields_ = [("start", c_uint),
("size", c_uint)
]
class c_nvmlComputeInstanceProfileInfo_t(Structure):
_fields_ = [("id", c_uint),
("sliceCount", c_uint),
("instanceCount", c_uint),
("multiprocessorCount", c_uint),
("sharedCopyEngineCount", c_uint),
("sharedDecoderCount", c_uint),
("sharedEncoderCount", c_uint),
("sharedJpegCount", c_uint),
("sharedOfaCount", c_uint)
]
nvmlComputeInstanceProfileInfo_v2 = 0x02000088
class c_nvmlComputeInstanceProfileInfo_v2_t(_PrintableStructure):
_fields_ = [("version", c_uint),
("id", c_uint),
("sliceCount", c_uint),
("instanceCount", c_uint),
("multiprocessorCount", c_uint),
("sharedCopyEngineCount", c_uint),
("sharedDecoderCount", c_uint),
("sharedEncoderCount", c_uint),
("sharedJpegCount", c_uint),
("sharedOfaCount", c_uint),
("name", c_char * NVML_DEVICE_NAME_V2_BUFFER_SIZE)
]
def __init__(self):
super(c_nvmlComputeInstanceProfileInfo_v2_t, self).__init__(version=nvmlComputeInstanceProfileInfo_v2)
class c_nvmlComputeInstanceInfo_t(Structure):
_fields_ = [("device", c_nvmlDevice_t),
("gpuInstance", c_nvmlGpuInstance_t),
("id", c_uint),
("profileId", c_uint),
("placement", c_nvmlComputeInstancePlacement_t)
]
NVML_MAX_GPU_UTILIZATIONS = 8
NVML_GPU_UTILIZATION_DOMAIN_GPU = 0
NVML_GPU_UTILIZATION_DOMAIN_FB = 1
NVML_GPU_UTILIZATION_DOMAIN_VID = 2
NVML_GPU_UTILIZATION_DOMAIN_BUS = 3
class c_nvmlGpuDynamicPstatesUtilization_t(Structure):
_fields_ = [("bIsPresent", c_uint, 1),
("percentage", c_uint),
("incThreshold", c_uint),
("decThreshold", c_uint)]
class c_nvmlGpuDynamicPstatesInfo_t(Structure):
_fields_ = [("flags", c_uint),
("utilization", c_nvmlGpuDynamicPstatesUtilization_t * NVML_MAX_GPU_UTILIZATIONS)]
NVML_MAX_THERMAL_SENSORS_PER_GPU = 3
NVML_THERMAL_TARGET_NONE = 0
NVML_THERMAL_TARGET_GPU = 1
NVML_THERMAL_TARGET_MEMORY = 2
NVML_THERMAL_TARGET_POWER_SUPPLY = 4
NVML_THERMAL_TARGET_BOARD = 8
NVML_THERMAL_TARGET_VCD_BOARD = 9
NVML_THERMAL_TARGET_VCD_INLET = 10
NVML_THERMAL_TARGET_VCD_OUTLET = 11
NVML_THERMAL_TARGET_ALL = 15
NVML_THERMAL_TARGET_UNKNOWN = -1
NVML_THERMAL_CONTROLLER_NONE = 0
NVML_THERMAL_CONTROLLER_GPU_INTERNAL = 1
NVML_THERMAL_CONTROLLER_ADM1032 = 2
NVML_THERMAL_CONTROLLER_ADT7461 = 3
NVML_THERMAL_CONTROLLER_MAX6649 = 4
NVML_THERMAL_CONTROLLER_MAX1617 = 5
NVML_THERMAL_CONTROLLER_LM99 = 6
NVML_THERMAL_CONTROLLER_LM89 = 7
NVML_THERMAL_CONTROLLER_LM64 = 8
NVML_THERMAL_CONTROLLER_G781 = 9
NVML_THERMAL_CONTROLLER_ADT7473 = 10
NVML_THERMAL_CONTROLLER_SBMAX6649 = 11
NVML_THERMAL_CONTROLLER_VBIOSEVT = 12
NVML_THERMAL_CONTROLLER_OS = 13
NVML_THERMAL_CONTROLLER_NVSYSCON_CANOAS = 14
NVML_THERMAL_CONTROLLER_NVSYSCON_E551 = 15
NVML_THERMAL_CONTROLLER_MAX6649R = 16
NVML_THERMAL_CONTROLLER_ADT7473S = 17
NVML_THERMAL_CONTROLLER_UNKNOWN = -1
class c_nvmlGpuThermalSensor_t(Structure):
_fields_ = [("controller", c_int),
("defaultMinTemp", c_int),
("defaultMaxTemp", c_int),
("currentTemp", c_int),
("target", c_int)]
class c_nvmlGpuThermalSettings_t(Structure):
_fields_ = [("count", c_uint),
("sensor", c_nvmlGpuThermalSensor_t * NVML_MAX_THERMAL_SENSORS_PER_GPU)]
class struct_c_nvmlComputeInstance_t(Structure):
pass # opaque handle
c_nvmlComputeInstance_t = POINTER(struct_c_nvmlComputeInstance_t)
class c_nvmlDeviceAttributes(Structure):
_fields_ = [("multiprocessorCount", c_uint),
("sharedCopyEngineCount", c_uint),
("sharedDecoderCount", c_uint),
("sharedEncoderCount", c_uint),
("sharedJpegCount", c_uint),
("sharedOfaCount", c_uint),
("gpuInstanceSliceCount", c_uint),
("computeInstanceSliceCount", c_uint),
("memorySizeMB", c_ulonglong),
]
class c_nvmlRowRemapperHistogramValues(Structure):
_fields_ = [("max", c_uint),
("high", c_uint),
("partial", c_uint),
("low", c_uint),
("none", c_uint)
]
## string/bytes conversion for ease of use
def convertStrBytes(func):
'''
In python 3, strings are unicode instead of bytes, and need to be converted for ctypes
Args from caller: (1, 'string', <__main__.c_nvmlDevice_t at 0xFFFFFFFF>)
Args passed to function: (1, b'string', <__main__.c_nvmlDevice_t at 0xFFFFFFFF)>
----
Returned from function: b'returned string'
Returned to caller: 'returned string'
'''
@wraps(func)
def wrapper(*args, **kwargs):
# encoding a str returns bytes in python 2 and 3
args = [arg.encode() if isinstance(arg, str) else arg for arg in args]
res = func(*args, **kwargs)
# In python 2, str and bytes are the same
# In python 3, str is unicode and should be decoded.
# Ctypes handles most conversions, this only effects c_char and char arrays.
if isinstance(res, bytes):
if isinstance(res, str):
return res
return res.decode()
return res
if sys.version_info >= (3,):
return wrapper
return func
## C function wrappers ##
def nvmlInitWithFlags(flags):
_LoadNvmlLibrary()
#
# Initialize the library
#
fn = _nvmlGetFunctionPointer("nvmlInitWithFlags")
ret = fn(flags)
_nvmlCheckReturn(ret)
# Atomically update refcount
global _nvmlLib_refcount
libLoadLock.acquire()
_nvmlLib_refcount += 1
libLoadLock.release()
return None
def nvmlInit():
nvmlInitWithFlags(0)
return None
def _LoadNvmlLibrary():
'''
Load the library if it isn't loaded already
'''
global nvmlLib
if nvmlLib is None:
# lock to ensure only one caller loads the library
libLoadLock.acquire()
try:
# ensure the library still isn't loaded
if nvmlLib is None:
try:
if (sys.platform[:3] == "win"):
# cdecl calling convention
try:
# Check for nvml.dll in System32 first for DCH drivers
nvmlLib = CDLL(os.path.join(os.getenv("WINDIR", "C:/Windows"), "System32/nvml.dll"))
except OSError as ose:
# If nvml.dll is not found in System32, it should be in ProgramFiles
# load nvml.dll from %ProgramFiles%/NVIDIA Corporation/NVSMI/nvml.dll
nvmlLib = CDLL(os.path.join(os.getenv("ProgramFiles", "C:/Program Files"),
"NVIDIA Corporation/NVSMI/nvml.dll"))
else:
# assume linux
nvmlLib = CDLL("libnvidia-ml.so.1")
except OSError as ose:
_nvmlCheckReturn(NVML_ERROR_LIBRARY_NOT_FOUND)
if nvmlLib is None:
_nvmlCheckReturn(NVML_ERROR_LIBRARY_NOT_FOUND)
finally:
# lock is always freed
libLoadLock.release()
def nvmlShutdown():
#
# Leave the library loaded, but shutdown the interface
#
fn = _nvmlGetFunctionPointer("nvmlShutdown")
ret = fn()
_nvmlCheckReturn(ret)
# Atomically update refcount
global _nvmlLib_refcount
libLoadLock.acquire()
if (0 < _nvmlLib_refcount):
_nvmlLib_refcount -= 1
libLoadLock.release()
return None
# Added in 2.285
@convertStrBytes
def nvmlErrorString(result):
fn = _nvmlGetFunctionPointer("nvmlErrorString")
fn.restype = c_char_p # otherwise return is an int
ret = fn(result)
return ret
# Added in 2.285
@convertStrBytes
def nvmlSystemGetNVMLVersion():
c_version = create_string_buffer(NVML_SYSTEM_NVML_VERSION_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlSystemGetNVMLVersion")
ret = fn(c_version, c_uint(NVML_SYSTEM_NVML_VERSION_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_version.value
def nvmlSystemGetCudaDriverVersion():
c_cuda_version = c_int()
fn = _nvmlGetFunctionPointer("nvmlSystemGetCudaDriverVersion")
ret = fn(byref(c_cuda_version))
_nvmlCheckReturn(ret)
return c_cuda_version.value
def nvmlSystemGetCudaDriverVersion_v2():
c_cuda_version = c_int()
fn = _nvmlGetFunctionPointer("nvmlSystemGetCudaDriverVersion_v2")
ret = fn(byref(c_cuda_version))
_nvmlCheckReturn(ret)
return c_cuda_version.value
# Added in 2.285
@convertStrBytes
def nvmlSystemGetProcessName(pid):
c_name = create_string_buffer(1024)
fn = _nvmlGetFunctionPointer("nvmlSystemGetProcessName")
ret = fn(c_uint(pid), c_name, c_uint(1024))
_nvmlCheckReturn(ret)
return c_name.value
@convertStrBytes
def nvmlSystemGetDriverVersion():
c_version = create_string_buffer(NVML_SYSTEM_DRIVER_VERSION_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlSystemGetDriverVersion")
ret = fn(c_version, c_uint(NVML_SYSTEM_DRIVER_VERSION_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_version.value
# Added in 2.285
def nvmlSystemGetHicVersion():
c_count = c_uint(0)
hics = None
fn = _nvmlGetFunctionPointer("nvmlSystemGetHicVersion")
# get the count
ret = fn(byref(c_count), None)
# this should only fail with insufficient size
if ((ret != NVML_SUCCESS) and
(ret != NVML_ERROR_INSUFFICIENT_SIZE)):
raise NVMLError(ret)
# If there are no hics
if (c_count.value == 0):
return []
hic_array = c_nvmlHwbcEntry_t * c_count.value
hics = hic_array()
ret = fn(byref(c_count), hics)
_nvmlCheckReturn(ret)
return hics
## Unit get functions
def nvmlUnitGetCount():
c_count = c_uint()
fn = _nvmlGetFunctionPointer("nvmlUnitGetCount")
ret = fn(byref(c_count))
_nvmlCheckReturn(ret)
return c_count.value
def nvmlUnitGetHandleByIndex(index):
c_index = c_uint(index)
unit = c_nvmlUnit_t()
fn = _nvmlGetFunctionPointer("nvmlUnitGetHandleByIndex")
ret = fn(c_index, byref(unit))
_nvmlCheckReturn(ret)
return unit
def nvmlUnitGetUnitInfo(unit):
c_info = c_nvmlUnitInfo_t()
fn = _nvmlGetFunctionPointer("nvmlUnitGetUnitInfo")
ret = fn(unit, byref(c_info))
_nvmlCheckReturn(ret)
return c_info
def nvmlUnitGetLedState(unit):
c_state = c_nvmlLedState_t()
fn = _nvmlGetFunctionPointer("nvmlUnitGetLedState")
ret = fn(unit, byref(c_state))
_nvmlCheckReturn(ret)
return c_state
def nvmlUnitGetPsuInfo(unit):
c_info = c_nvmlPSUInfo_t()
fn = _nvmlGetFunctionPointer("nvmlUnitGetPsuInfo")
ret = fn(unit, byref(c_info))
_nvmlCheckReturn(ret)
return c_info
def nvmlUnitGetTemperature(unit, type):
c_temp = c_uint()
fn = _nvmlGetFunctionPointer("nvmlUnitGetTemperature")
ret = fn(unit, c_uint(type), byref(c_temp))
_nvmlCheckReturn(ret)
return c_temp.value
def nvmlUnitGetFanSpeedInfo(unit):
c_speeds = c_nvmlUnitFanSpeeds_t()
fn = _nvmlGetFunctionPointer("nvmlUnitGetFanSpeedInfo")
ret = fn(unit, byref(c_speeds))
_nvmlCheckReturn(ret)
return c_speeds
# added to API
def nvmlUnitGetDeviceCount(unit):
c_count = c_uint(0)
# query the unit to determine device count
fn = _nvmlGetFunctionPointer("nvmlUnitGetDevices")
ret = fn(unit, byref(c_count), None)
if (ret == NVML_ERROR_INSUFFICIENT_SIZE):
ret = NVML_SUCCESS
_nvmlCheckReturn(ret)
return c_count.value
def nvmlUnitGetDevices(unit):
c_count = c_uint(nvmlUnitGetDeviceCount(unit))
device_array = c_nvmlDevice_t * c_count.value
c_devices = device_array()
fn = _nvmlGetFunctionPointer("nvmlUnitGetDevices")
ret = fn(unit, byref(c_count), c_devices)
_nvmlCheckReturn(ret)
return c_devices
## Device get functions
def nvmlDeviceGetCount():
c_count = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetCount_v2")
ret = fn(byref(c_count))
_nvmlCheckReturn(ret)
return c_count.value
def nvmlDeviceGetHandleByIndex(index):
c_index = c_uint(index)
device = c_nvmlDevice_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetHandleByIndex_v2")
ret = fn(c_index, byref(device))
_nvmlCheckReturn(ret)
return device
@convertStrBytes
def nvmlDeviceGetHandleBySerial(serial):
c_serial = c_char_p(serial)
device = c_nvmlDevice_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetHandleBySerial")
ret = fn(c_serial, byref(device))
_nvmlCheckReturn(ret)
return device
@convertStrBytes
def nvmlDeviceGetHandleByUUID(uuid):
c_uuid = c_char_p(uuid)
device = c_nvmlDevice_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetHandleByUUID")
ret = fn(c_uuid, byref(device))
_nvmlCheckReturn(ret)
return device
@convertStrBytes
def nvmlDeviceGetHandleByPciBusId(pciBusId):
c_busId = c_char_p(pciBusId)
device = c_nvmlDevice_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetHandleByPciBusId_v2")
ret = fn(c_busId, byref(device))
_nvmlCheckReturn(ret)
return device
@convertStrBytes
def nvmlDeviceGetName(handle):
c_name = create_string_buffer(NVML_DEVICE_NAME_V2_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetName")
ret = fn(handle, c_name, c_uint(NVML_DEVICE_NAME_V2_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_name.value
def nvmlDeviceGetBoardId(handle):
c_id = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetBoardId")
ret = fn(handle, byref(c_id))
_nvmlCheckReturn(ret)
return c_id.value
def nvmlDeviceGetMultiGpuBoard(handle):
c_multiGpu = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMultiGpuBoard")
ret = fn(handle, byref(c_multiGpu))
_nvmlCheckReturn(ret)
return c_multiGpu.value
def nvmlDeviceGetBrand(handle):
c_type = _nvmlBrandType_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetBrand")
ret = fn(handle, byref(c_type))
_nvmlCheckReturn(ret)
return c_type.value
@convertStrBytes
def nvmlDeviceGetBoardPartNumber(handle):
c_part_number = create_string_buffer(NVML_DEVICE_PART_NUMBER_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetBoardPartNumber")
ret = fn(handle, c_part_number, c_uint(NVML_DEVICE_PART_NUMBER_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_part_number.value
@convertStrBytes
def nvmlDeviceGetSerial(handle):
c_serial = create_string_buffer(NVML_DEVICE_SERIAL_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetSerial")
ret = fn(handle, c_serial, c_uint(NVML_DEVICE_SERIAL_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_serial.value
def nvmlDeviceGetMemoryAffinity(handle, nodeSetSize, scope):
affinity_array = c_ulonglong * nodeSetSize
c_affinity = affinity_array()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMemoryAffinity")
ret = fn(handle, nodeSetSize, byref(c_affinity), _nvmlAffinityScope_t(scope))
_nvmlCheckReturn(ret)
return c_affinity
def nvmlDeviceGetCpuAffinityWithinScope(handle, cpuSetSize, scope):
affinity_array = c_ulonglong * cpuSetSize
c_affinity = affinity_array()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetCpuAffinityWithinScope")
ret = fn(handle, cpuSetSize, byref(c_affinity), _nvmlAffinityScope_t(scope))
_nvmlCheckReturn(ret)
return c_affinity
def nvmlDeviceGetCpuAffinity(handle, cpuSetSize):
affinity_array = c_ulonglong * cpuSetSize
c_affinity = affinity_array()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetCpuAffinity")
ret = fn(handle, cpuSetSize, byref(c_affinity))
_nvmlCheckReturn(ret)
return c_affinity
def nvmlDeviceSetCpuAffinity(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetCpuAffinity")
ret = fn(handle)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceClearCpuAffinity(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceClearCpuAffinity")
ret = fn(handle)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceGetMinorNumber(handle):
c_minor_number = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMinorNumber")
ret = fn(handle, byref(c_minor_number))
_nvmlCheckReturn(ret)
return c_minor_number.value
@convertStrBytes
def nvmlDeviceGetUUID(handle):
c_uuid = create_string_buffer(NVML_DEVICE_UUID_V2_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetUUID")
ret = fn(handle, c_uuid, c_uint(NVML_DEVICE_UUID_V2_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_uuid.value
@convertStrBytes
def nvmlDeviceGetInforomVersion(handle, infoRomObject):
c_version = create_string_buffer(NVML_DEVICE_INFOROM_VERSION_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetInforomVersion")
ret = fn(handle, _nvmlInforomObject_t(infoRomObject),
c_version, c_uint(NVML_DEVICE_INFOROM_VERSION_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_version.value
# Added in 4.304
@convertStrBytes
def nvmlDeviceGetInforomImageVersion(handle):
c_version = create_string_buffer(NVML_DEVICE_INFOROM_VERSION_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetInforomImageVersion")
ret = fn(handle, c_version, c_uint(NVML_DEVICE_INFOROM_VERSION_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_version.value
# Added in 4.304
def nvmlDeviceGetInforomConfigurationChecksum(handle):
c_checksum = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetInforomConfigurationChecksum")
ret = fn(handle, byref(c_checksum))
_nvmlCheckReturn(ret)
return c_checksum.value
# Added in 4.304
def nvmlDeviceValidateInforom(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceValidateInforom")
ret = fn(handle)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceGetDisplayMode(handle):
c_mode = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDisplayMode")
ret = fn(handle, byref(c_mode))
_nvmlCheckReturn(ret)
return c_mode.value
def nvmlDeviceGetDisplayActive(handle):
c_mode = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDisplayActive")
ret = fn(handle, byref(c_mode))
_nvmlCheckReturn(ret)
return c_mode.value
def nvmlDeviceGetPersistenceMode(handle):
c_state = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPersistenceMode")
ret = fn(handle, byref(c_state))
_nvmlCheckReturn(ret)
return c_state.value
def nvmlDeviceGetPciInfo_v3(handle):
c_info = nvmlPciInfo_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPciInfo_v3")
ret = fn(handle, byref(c_info))
_nvmlCheckReturn(ret)
return c_info
def nvmlDeviceGetPciInfo(handle):
return nvmlDeviceGetPciInfo_v3(handle)
def nvmlDeviceGetClockInfo(handle, type):
c_clock = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetClockInfo")
ret = fn(handle, _nvmlClockType_t(type), byref(c_clock))
_nvmlCheckReturn(ret)
return c_clock.value
# Added in 2.285
def nvmlDeviceGetMaxClockInfo(handle, type):
c_clock = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMaxClockInfo")
ret = fn(handle, _nvmlClockType_t(type), byref(c_clock))
_nvmlCheckReturn(ret)
return c_clock.value
# Added in 4.304
def nvmlDeviceGetApplicationsClock(handle, type):
c_clock = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetApplicationsClock")
ret = fn(handle, _nvmlClockType_t(type), byref(c_clock))
_nvmlCheckReturn(ret)
return c_clock.value
def nvmlDeviceGetMaxCustomerBoostClock(handle, type):
c_clock = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMaxCustomerBoostClock")
ret = fn(handle, _nvmlClockType_t(type), byref(c_clock))
_nvmlCheckReturn(ret)
return c_clock.value
def nvmlDeviceGetClock(handle, type, id):
c_clock = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetClock")
ret = fn(handle, _nvmlClockType_t(type), _nvmlClockId_t(id), byref(c_clock))
_nvmlCheckReturn(ret)
return c_clock.value
# Added in 5.319
def nvmlDeviceGetDefaultApplicationsClock(handle, type):
c_clock = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDefaultApplicationsClock")
ret = fn(handle, _nvmlClockType_t(type), byref(c_clock))
_nvmlCheckReturn(ret)
return c_clock.value
# Added in 4.304
def nvmlDeviceGetSupportedMemoryClocks(handle):
# first call to get the size
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetSupportedMemoryClocks")
ret = fn(handle, byref(c_count), None)
if (ret == NVML_SUCCESS):
# special case, no clocks
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
clocks_array = c_uint * c_count.value
c_clocks = clocks_array()
# make the call again
ret = fn(handle, byref(c_count), c_clocks)
_nvmlCheckReturn(ret)
procs = []
for i in range(c_count.value):
procs.append(c_clocks[i])
return procs
else:
# error case
raise NVMLError(ret)
# Added in 4.304
def nvmlDeviceGetSupportedGraphicsClocks(handle, memoryClockMHz):
# first call to get the size
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetSupportedGraphicsClocks")
ret = fn(handle, c_uint(memoryClockMHz), byref(c_count), None)
if (ret == NVML_SUCCESS):
# special case, no clocks
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
clocks_array = c_uint * c_count.value
c_clocks = clocks_array()
# make the call again
ret = fn(handle, c_uint(memoryClockMHz), byref(c_count), c_clocks)
_nvmlCheckReturn(ret)
procs = []
for i in range(c_count.value):
procs.append(c_clocks[i])
return procs
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetFanSpeed(handle):
c_speed = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetFanSpeed")
ret = fn(handle, byref(c_speed))
_nvmlCheckReturn(ret)
return c_speed.value
def nvmlDeviceGetFanSpeed_v2(handle, fan):
c_speed = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetFanSpeed_v2")
ret = fn(handle, fan, byref(c_speed))
_nvmlCheckReturn(ret)
return c_speed.value
def nvmlDeviceGetTargetFanSpeed(handle, fan):
c_speed = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetTargetFanSpeed")
ret = fn(handle, fan, byref(c_speed))
_nvmlCheckReturn(ret)
return c_speed.value
def nvmlDeviceGetNumFans(device):
c_numFans = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNumFans")
ret = fn(device, byref(c_numFans))
_nvmlCheckReturn(ret)
return c_numFans.value
def nvmlDeviceSetDefaultFanSpeed_v2(handle, index):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetDefaultFanSpeed_v2")
ret = fn(handle, index)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetMinMaxFanSpeed(handle, minSpeed, maxSpeed):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMinMaxFanSpeed")
ret = fn(handle, minSpeed, maxSpeed)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetFanControlPolicy_v2(handle, fan, fanControlPolicy):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetFanControlPolicy_v2")
ret = fn(handle, fan, fanControlPolicy)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceSetFanControlPolicy(handle, fan, fanControlPolicy):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetFanControlPolicy")
ret = fn(handle, fan, _nvmlFanControlPolicy_t(fanControlPolicy))
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetTemperature(handle, sensor):
c_temp = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetTemperature")
ret = fn(handle, _nvmlTemperatureSensors_t(sensor), byref(c_temp))
_nvmlCheckReturn(ret)
return c_temp.value
def nvmlDeviceGetTemperatureThreshold(handle, threshold):
c_temp = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetTemperatureThreshold")
ret = fn(handle, _nvmlTemperatureThresholds_t(threshold), byref(c_temp))
_nvmlCheckReturn(ret)
return c_temp.value
def nvmlDeviceSetTemperatureThreshold(handle, threshold, temp):
c_temp = c_uint()
c_temp.value = temp
fn = _nvmlGetFunctionPointer("nvmlDeviceSetTemperatureThreshold")
ret = fn(handle, _nvmlTemperatureThresholds_t(threshold), byref(c_temp))
_nvmlCheckReturn(ret)
return None
# DEPRECATED use nvmlDeviceGetPerformanceState
def nvmlDeviceGetPowerState(handle):
c_pstate = _nvmlPstates_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPowerState")
ret = fn(handle, byref(c_pstate))
_nvmlCheckReturn(ret)
return c_pstate.value
def nvmlDeviceGetPerformanceState(handle):
c_pstate = _nvmlPstates_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPerformanceState")
ret = fn(handle, byref(c_pstate))
_nvmlCheckReturn(ret)
return c_pstate.value
def nvmlDeviceGetPowerManagementMode(handle):
c_pcapMode = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPowerManagementMode")
ret = fn(handle, byref(c_pcapMode))
_nvmlCheckReturn(ret)
return c_pcapMode.value
def nvmlDeviceGetPowerManagementLimit(handle):
c_limit = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPowerManagementLimit")
ret = fn(handle, byref(c_limit))
_nvmlCheckReturn(ret)
return c_limit.value
# Added in 4.304
def nvmlDeviceGetPowerManagementLimitConstraints(handle):
c_minLimit = c_uint()
c_maxLimit = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPowerManagementLimitConstraints")
ret = fn(handle, byref(c_minLimit), byref(c_maxLimit))
_nvmlCheckReturn(ret)
return [c_minLimit.value, c_maxLimit.value]
# Added in 4.304
def nvmlDeviceGetPowerManagementDefaultLimit(handle):
c_limit = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPowerManagementDefaultLimit")
ret = fn(handle, byref(c_limit))
_nvmlCheckReturn(ret)
return c_limit.value
# Added in 331
def nvmlDeviceGetEnforcedPowerLimit(handle):
c_limit = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetEnforcedPowerLimit")
ret = fn(handle, byref(c_limit))
_nvmlCheckReturn(ret)
return c_limit.value
def nvmlDeviceGetPowerUsage(handle):
c_watts = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPowerUsage")
ret = fn(handle, byref(c_watts))
_nvmlCheckReturn(ret)
return c_watts.value
def nvmlDeviceGetTotalEnergyConsumption(handle):
c_millijoules = c_uint64()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetTotalEnergyConsumption")
ret = fn(handle, byref(c_millijoules))
_nvmlCheckReturn(ret)
return c_millijoules.value
# Added in 4.304
def nvmlDeviceGetGpuOperationMode(handle):
c_currState = _nvmlGpuOperationMode_t()
c_pendingState = _nvmlGpuOperationMode_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuOperationMode")
ret = fn(handle, byref(c_currState), byref(c_pendingState))
_nvmlCheckReturn(ret)
return [c_currState.value, c_pendingState.value]
# Added in 4.304
def nvmlDeviceGetCurrentGpuOperationMode(handle):
return nvmlDeviceGetGpuOperationMode(handle)[0]
# Added in 4.304
def nvmlDeviceGetPendingGpuOperationMode(handle):
return nvmlDeviceGetGpuOperationMode(handle)[1]
def nvmlDeviceGetMemoryInfo(handle, version=None):
if not version:
c_memory = c_nvmlMemory_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMemoryInfo")
else:
c_memory = c_nvmlMemory_v2_t()
c_memory.version = version
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMemoryInfo_v2")
ret = fn(handle, byref(c_memory))
_nvmlCheckReturn(ret)
return c_memory
def nvmlDeviceGetBAR1MemoryInfo(handle):
c_bar1_memory = c_nvmlBAR1Memory_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetBAR1MemoryInfo")
ret = fn(handle, byref(c_bar1_memory))
_nvmlCheckReturn(ret)
return c_bar1_memory
def nvmlDeviceGetComputeMode(handle):
c_mode = _nvmlComputeMode_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetComputeMode")
ret = fn(handle, byref(c_mode))
_nvmlCheckReturn(ret)
return c_mode.value
def nvmlDeviceGetCudaComputeCapability(handle):
c_major = c_int()
c_minor = c_int()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetCudaComputeCapability")
ret = fn(handle, byref(c_major), byref(c_minor))
_nvmlCheckReturn(ret)
return (c_major.value, c_minor.value)
def nvmlDeviceGetEccMode(handle):
c_currState = _nvmlEnableState_t()
c_pendingState = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetEccMode")
ret = fn(handle, byref(c_currState), byref(c_pendingState))
_nvmlCheckReturn(ret)
return [c_currState.value, c_pendingState.value]
# added to API
def nvmlDeviceGetCurrentEccMode(handle):
return nvmlDeviceGetEccMode(handle)[0]
# added to API
def nvmlDeviceGetPendingEccMode(handle):
return nvmlDeviceGetEccMode(handle)[1]
def nvmlDeviceGetDefaultEccMode(handle):
c_defaultState = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDefaultEccMode")
ret = fn(handle, byref(c_defaultState))
_nvmlCheckReturn(ret)
return [c_defaultState.value]
def nvmlDeviceGetTotalEccErrors(handle, errorType, counterType):
c_count = c_ulonglong()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetTotalEccErrors")
ret = fn(handle, _nvmlMemoryErrorType_t(errorType),
_nvmlEccCounterType_t(counterType), byref(c_count))
_nvmlCheckReturn(ret)
return c_count.value
# This is deprecated, instead use nvmlDeviceGetMemoryErrorCounter
def nvmlDeviceGetDetailedEccErrors(handle, errorType, counterType):
c_counts = c_nvmlEccErrorCounts_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDetailedEccErrors")
ret = fn(handle, _nvmlMemoryErrorType_t(errorType),
_nvmlEccCounterType_t(counterType), byref(c_counts))
_nvmlCheckReturn(ret)
return c_counts
# Added in 4.304
def nvmlDeviceGetMemoryErrorCounter(handle, errorType, counterType, locationType):
c_count = c_ulonglong()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMemoryErrorCounter")
ret = fn(handle,
_nvmlMemoryErrorType_t(errorType),
_nvmlEccCounterType_t(counterType),
_nvmlMemoryLocation_t(locationType),
byref(c_count))
_nvmlCheckReturn(ret)
return c_count.value
def nvmlDeviceGetUtilizationRates(handle):
c_util = c_nvmlUtilization_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetUtilizationRates")
ret = fn(handle, byref(c_util))
_nvmlCheckReturn(ret)
return c_util
def nvmlDeviceGetEncoderUtilization(handle):
c_util = c_uint()
c_samplingPeriod = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetEncoderUtilization")
ret = fn(handle, byref(c_util), byref(c_samplingPeriod))
_nvmlCheckReturn(ret)
return [c_util.value, c_samplingPeriod.value]
def nvmlDeviceGetDecoderUtilization(handle):
c_util = c_uint()
c_samplingPeriod = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDecoderUtilization")
ret = fn(handle, byref(c_util), byref(c_samplingPeriod))
_nvmlCheckReturn(ret)
return [c_util.value, c_samplingPeriod.value]
def nvmlDeviceGetPcieReplayCounter(handle):
c_replay = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPcieReplayCounter")
ret = fn(handle, byref(c_replay))
_nvmlCheckReturn(ret)
return c_replay.value
def nvmlDeviceGetDriverModel(handle):
c_currModel = _nvmlDriverModel_t()
c_pendingModel = _nvmlDriverModel_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDriverModel")
ret = fn(handle, byref(c_currModel), byref(c_pendingModel))
_nvmlCheckReturn(ret)
return [c_currModel.value, c_pendingModel.value]
# added to API
def nvmlDeviceGetCurrentDriverModel(handle):
return nvmlDeviceGetDriverModel(handle)[0]
# added to API
def nvmlDeviceGetPendingDriverModel(handle):
return nvmlDeviceGetDriverModel(handle)[1]
# Added in 2.285
@convertStrBytes
def nvmlDeviceGetVbiosVersion(handle):
c_version = create_string_buffer(NVML_DEVICE_VBIOS_VERSION_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVbiosVersion")
ret = fn(handle, c_version, c_uint(NVML_DEVICE_VBIOS_VERSION_BUFFER_SIZE))
_nvmlCheckReturn(ret)
return c_version.value
# Added in 2.285
def nvmlDeviceGetComputeRunningProcesses_v3(handle):
# first call to get the size
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetComputeRunningProcesses_v3")
ret = fn(handle, byref(c_count), None)
if (ret == NVML_SUCCESS):
# special case, no running processes
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
# oversize the array incase more processes are created
c_count.value = c_count.value * 2 + 5
proc_array = c_nvmlProcessInfo_t * c_count.value
c_procs = proc_array()
# make the call again
ret = fn(handle, byref(c_count), c_procs)
_nvmlCheckReturn(ret)
procs = []
for i in range(c_count.value):
# use an alternative struct for this object
obj = nvmlStructToFriendlyObject(c_procs[i])
if (obj.usedGpuMemory == NVML_VALUE_NOT_AVAILABLE_ulonglong.value):
# special case for WDDM on Windows, see comment above
obj.usedGpuMemory = None
procs.append(obj)
return procs
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetComputeRunningProcesses(handle):
return nvmlDeviceGetComputeRunningProcesses_v3(handle)
def nvmlDeviceGetGraphicsRunningProcesses_v3(handle):
# first call to get the size
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGraphicsRunningProcesses_v3")
ret = fn(handle, byref(c_count), None)
if (ret == NVML_SUCCESS):
# special case, no running processes
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
# oversize the array incase more processes are created
c_count.value = c_count.value * 2 + 5
proc_array = c_nvmlProcessInfo_t * c_count.value
c_procs = proc_array()
# make the call again
ret = fn(handle, byref(c_count), c_procs)
_nvmlCheckReturn(ret)
procs = []
for i in range(c_count.value):
# use an alternative struct for this object
obj = nvmlStructToFriendlyObject(c_procs[i])
if (obj.usedGpuMemory == NVML_VALUE_NOT_AVAILABLE_ulonglong.value):
# special case for WDDM on Windows, see comment above
obj.usedGpuMemory = None
procs.append(obj)
return procs
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetGraphicsRunningProcesses(handle):
return nvmlDeviceGetGraphicsRunningProcesses_v3(handle)
def nvmlDeviceGetMPSComputeRunningProcesses(handle):
return nvmlDeviceGetMPSComputeRunningProcesses_v3(handle)
def nvmlDeviceGetMPSComputeRunningProcesses_v3(handle):
# first call to get the size
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMPSComputeRunningProcesses_v3")
ret = fn(handle, byref(c_count), None)
if (ret == NVML_SUCCESS):
# special case, no running processes
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
# oversize the array incase more processes are created
c_count.value = c_count.value * 2 + 5
proc_array = c_nvmlProcessInfo_t * c_count.value
c_procs = proc_array()
# make the call again
ret = fn(handle, byref(c_count), c_procs)
_nvmlCheckReturn(ret)
procs = []
for i in range(c_count.value):
# use an alternative struct for this object
obj = nvmlStructToFriendlyObject(c_procs[i])
if (obj.usedGpuMemory == NVML_VALUE_NOT_AVAILABLE_ulonglong.value):
# special case for WDDM on Windows, see comment above
obj.usedGpuMemory = None
procs.append(obj)
return procs
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetAutoBoostedClocksEnabled(handle):
c_isEnabled = _nvmlEnableState_t()
c_defaultIsEnabled = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetAutoBoostedClocksEnabled")
ret = fn(handle, byref(c_isEnabled), byref(c_defaultIsEnabled))
_nvmlCheckReturn(ret)
return [c_isEnabled.value, c_defaultIsEnabled.value]
# Throws NVML_ERROR_NOT_SUPPORTED if hardware doesn't support setting auto boosted clocks
## Set functions
def nvmlUnitSetLedState(unit, color):
fn = _nvmlGetFunctionPointer("nvmlUnitSetLedState")
ret = fn(unit, _nvmlLedColor_t(color))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceSetPersistenceMode(handle, mode):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetPersistenceMode")
ret = fn(handle, _nvmlEnableState_t(mode))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceSetComputeMode(handle, mode):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetComputeMode")
ret = fn(handle, _nvmlComputeMode_t(mode))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceSetEccMode(handle, mode):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetEccMode")
ret = fn(handle, _nvmlEnableState_t(mode))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceClearEccErrorCounts(handle, counterType):
fn = _nvmlGetFunctionPointer("nvmlDeviceClearEccErrorCounts")
ret = fn(handle, _nvmlEccCounterType_t(counterType))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceSetDriverModel(handle, model):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetDriverModel")
ret = fn(handle, _nvmlDriverModel_t(model))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceSetAutoBoostedClocksEnabled(handle, enabled):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetAutoBoostedClocksEnabled")
ret = fn(handle, _nvmlEnableState_t(enabled))
_nvmlCheckReturn(ret)
return None
# Throws NVML_ERROR_NOT_SUPPORTED if hardware doesn't support setting auto boosted clocks
def nvmlDeviceSetDefaultAutoBoostedClocksEnabled(handle, enabled, flags):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetDefaultAutoBoostedClocksEnabled")
ret = fn(handle, _nvmlEnableState_t(enabled), c_uint(flags))
_nvmlCheckReturn(ret)
return None
# Throws NVML_ERROR_NOT_SUPPORTED if hardware doesn't support setting auto boosted clocks
def nvmlDeviceSetGpuLockedClocks(handle, minGpuClockMHz, maxGpuClockMHz):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetGpuLockedClocks")
ret = fn(handle, c_uint(minGpuClockMHz), c_uint(maxGpuClockMHz))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceResetGpuLockedClocks(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceResetGpuLockedClocks")
ret = fn(handle)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceSetMemoryLockedClocks(handle, minMemClockMHz, maxMemClockMHz):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetMemoryLockedClocks")
ret = fn(handle, c_uint(minMemClockMHz), c_uint(maxMemClockMHz))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceResetMemoryLockedClocks(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceResetMemoryLockedClocks")
ret = fn(handle)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceGetClkMonStatus(handle, c_clkMonInfo):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetClkMonStatus")
ret = fn(handle, c_clkMonInfo)
return ret
# Added in 4.304
def nvmlDeviceSetApplicationsClocks(handle, maxMemClockMHz, maxGraphicsClockMHz):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetApplicationsClocks")
ret = fn(handle, c_uint(maxMemClockMHz), c_uint(maxGraphicsClockMHz))
_nvmlCheckReturn(ret)
return None
# Added in 4.304
def nvmlDeviceResetApplicationsClocks(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceResetApplicationsClocks")
ret = fn(handle)
_nvmlCheckReturn(ret)
return None
# Added in 4.304
def nvmlDeviceSetPowerManagementLimit(handle, limit):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetPowerManagementLimit")
ret = fn(handle, c_uint(limit))
_nvmlCheckReturn(ret)
return None
# Added in 4.304
def nvmlDeviceSetGpuOperationMode(handle, mode):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetGpuOperationMode")
ret = fn(handle, _nvmlGpuOperationMode_t(mode))
_nvmlCheckReturn(ret)
return None
# Added in 2.285
def nvmlEventSetCreate():
fn = _nvmlGetFunctionPointer("nvmlEventSetCreate")
eventSet = c_nvmlEventSet_t()
ret = fn(byref(eventSet))
_nvmlCheckReturn(ret)
return eventSet
# Added in 2.285
def nvmlDeviceRegisterEvents(handle, eventTypes, eventSet):
fn = _nvmlGetFunctionPointer("nvmlDeviceRegisterEvents")
ret = fn(handle, c_ulonglong(eventTypes), eventSet)
_nvmlCheckReturn(ret)
return None
# Added in 2.285
def nvmlDeviceGetSupportedEventTypes(handle):
c_eventTypes = c_ulonglong()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetSupportedEventTypes")
ret = fn(handle, byref(c_eventTypes))
_nvmlCheckReturn(ret)
return c_eventTypes.value
# raises NVML_ERROR_TIMEOUT exception on timeout
def nvmlEventSetWait_v2(eventSet, timeoutms):
fn = _nvmlGetFunctionPointer("nvmlEventSetWait_v2")
data = c_nvmlEventData_t()
ret = fn(eventSet, byref(data), c_uint(timeoutms))
_nvmlCheckReturn(ret)
return data
def nvmlEventSetWait(eventSet, timeoutms):
return nvmlEventSetWait_v2(eventSet, timeoutms)
# Added in 2.285
def nvmlEventSetFree(eventSet):
fn = _nvmlGetFunctionPointer("nvmlEventSetFree")
ret = fn(eventSet)
_nvmlCheckReturn(ret)
return None
# Added in 3.295
def nvmlDeviceOnSameBoard(handle1, handle2):
fn = _nvmlGetFunctionPointer("nvmlDeviceOnSameBoard")
onSameBoard = c_int()
ret = fn(handle1, handle2, byref(onSameBoard))
_nvmlCheckReturn(ret)
return (onSameBoard.value != 0)
# Added in 3.295
def nvmlDeviceGetCurrPcieLinkGeneration(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetCurrPcieLinkGeneration")
gen = c_uint()
ret = fn(handle, byref(gen))
_nvmlCheckReturn(ret)
return gen.value
# Added in 3.295
def nvmlDeviceGetMaxPcieLinkGeneration(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMaxPcieLinkGeneration")
gen = c_uint()
ret = fn(handle, byref(gen))
_nvmlCheckReturn(ret)
return gen.value
# Added in 3.295
def nvmlDeviceGetCurrPcieLinkWidth(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetCurrPcieLinkWidth")
width = c_uint()
ret = fn(handle, byref(width))
_nvmlCheckReturn(ret)
return width.value
# Added in 3.295
def nvmlDeviceGetMaxPcieLinkWidth(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMaxPcieLinkWidth")
width = c_uint()
ret = fn(handle, byref(width))
_nvmlCheckReturn(ret)
return width.value
def nvmlDeviceGetGpuMaxPcieLinkGeneration(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuMaxPcieLinkGeneration")
gen = c_uint()
ret = fn(handle, byref(gen))
_nvmlCheckReturn(ret)
return gen.value
# Added in 4.304
def nvmlDeviceGetSupportedClocksThrottleReasons(handle):
c_reasons = c_ulonglong()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetSupportedClocksThrottleReasons")
ret = fn(handle, byref(c_reasons))
_nvmlCheckReturn(ret)
return c_reasons.value
# Added in 4.304
def nvmlDeviceGetCurrentClocksThrottleReasons(handle):
c_reasons = c_ulonglong()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetCurrentClocksThrottleReasons")
ret = fn(handle, byref(c_reasons))
_nvmlCheckReturn(ret)
return c_reasons.value
# Added in 5.319
def nvmlDeviceGetIndex(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetIndex")
c_index = c_uint()
ret = fn(handle, byref(c_index))
_nvmlCheckReturn(ret)
return c_index.value
# Added in 5.319
def nvmlDeviceGetAccountingMode(handle):
c_mode = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetAccountingMode")
ret = fn(handle, byref(c_mode))
_nvmlCheckReturn(ret)
return c_mode.value
def nvmlDeviceSetAccountingMode(handle, mode):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetAccountingMode")
ret = fn(handle, _nvmlEnableState_t(mode))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceClearAccountingPids(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceClearAccountingPids")
ret = fn(handle)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceGetAccountingStats(handle, pid):
stats = c_nvmlAccountingStats_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetAccountingStats")
ret = fn(handle, c_uint(pid), byref(stats))
_nvmlCheckReturn(ret)
if (stats.maxMemoryUsage == NVML_VALUE_NOT_AVAILABLE_ulonglong.value):
# special case for WDDM on Windows, see comment above
stats.maxMemoryUsage = None
return stats
def nvmlDeviceGetAccountingPids(handle):
count = c_uint(nvmlDeviceGetAccountingBufferSize(handle))
pids = (c_uint * count.value)()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetAccountingPids")
ret = fn(handle, byref(count), pids)
_nvmlCheckReturn(ret)
return list(map(int, pids[0:count.value]))
def nvmlDeviceGetAccountingBufferSize(handle):
bufferSize = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetAccountingBufferSize")
ret = fn(handle, byref(bufferSize))
_nvmlCheckReturn(ret)
return int(bufferSize.value)
def nvmlDeviceGetRetiredPages(device, sourceFilter):
c_source = _nvmlPageRetirementCause_t(sourceFilter)
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetRetiredPages")
# First call will get the size
ret = fn(device, c_source, byref(c_count), None)
# this should only fail with insufficient size
if ((ret != NVML_SUCCESS) and
(ret != NVML_ERROR_INSUFFICIENT_SIZE)):
raise NVMLError(ret)
# call again with a buffer
# oversize the array for the rare cases where additional pages
# are retired between NVML calls
c_count.value = c_count.value * 2 + 5
page_array = c_ulonglong * c_count.value
c_pages = page_array()
ret = fn(device, c_source, byref(c_count), c_pages)
_nvmlCheckReturn(ret)
return list(map(int, c_pages[0:c_count.value]))
def nvmlDeviceGetRetiredPages_v2(device, sourceFilter):
c_source = _nvmlPageRetirementCause_t(sourceFilter)
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetRetiredPages_v2")
# First call will get the size
ret = fn(device, c_source, byref(c_count), None)
# this should only fail with insufficient size
if ((ret != NVML_SUCCESS) and
(ret != NVML_ERROR_INSUFFICIENT_SIZE)):
raise NVMLError(ret)
# call again with a buffer
# oversize the array for the rare cases where additional pages
# are retired between NVML calls
c_count.value = c_count.value * 2 + 5
page_array = c_ulonglong * c_count.value
c_pages = page_array()
times_array = c_ulonglong * c_count.value
c_times = times_array()
ret = fn(device, c_source, byref(c_count), c_pages, c_times)
_nvmlCheckReturn(ret)
return [{'address': int(c_pages[i]), 'timestamp': int(c_times[i])} for i in range(c_count.value)]
def nvmlDeviceGetRetiredPagesPendingStatus(device):
c_pending = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetRetiredPagesPendingStatus")
ret = fn(device, byref(c_pending))
_nvmlCheckReturn(ret)
return int(c_pending.value)
def nvmlDeviceGetAPIRestriction(device, apiType):
c_permission = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetAPIRestriction")
ret = fn(device, _nvmlRestrictedAPI_t(apiType), byref(c_permission))
_nvmlCheckReturn(ret)
return int(c_permission.value)
def nvmlDeviceSetAPIRestriction(handle, apiType, isRestricted):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetAPIRestriction")
ret = fn(handle, _nvmlRestrictedAPI_t(apiType), _nvmlEnableState_t(isRestricted))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceGetBridgeChipInfo(handle):
bridgeHierarchy = c_nvmlBridgeChipHierarchy_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetBridgeChipInfo")
ret = fn(handle, byref(bridgeHierarchy))
_nvmlCheckReturn(ret)
return bridgeHierarchy
def nvmlDeviceGetSamples(device, sampling_type, timeStamp):
c_sampling_type = _nvmlSamplingType_t(sampling_type)
c_time_stamp = c_ulonglong(timeStamp)
c_sample_count = c_uint(0)
c_sample_value_type = _nvmlValueType_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetSamples")
## First Call gets the size
ret = fn(device, c_sampling_type, c_time_stamp, byref(c_sample_value_type), byref(c_sample_count), None)
# Stop if this fails
if (ret != NVML_SUCCESS):
raise NVMLError(ret)
sampleArray = c_sample_count.value * c_nvmlSample_t
c_samples = sampleArray()
ret = fn(device, c_sampling_type, c_time_stamp, byref(c_sample_value_type), byref(c_sample_count), c_samples)
_nvmlCheckReturn(ret)
return (c_sample_value_type.value, c_samples[0:c_sample_count.value])
def nvmlDeviceGetViolationStatus(device, perfPolicyType):
c_perfPolicy_type = _nvmlPerfPolicyType_t(perfPolicyType)
c_violTime = c_nvmlViolationTime_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetViolationStatus")
## Invoke the method to get violation time
ret = fn(device, c_perfPolicy_type, byref(c_violTime))
_nvmlCheckReturn(ret)
return c_violTime
def nvmlDeviceGetPcieThroughput(device, counter):
c_util = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPcieThroughput")
ret = fn(device, _nvmlPcieUtilCounter_t(counter), byref(c_util))
_nvmlCheckReturn(ret)
return c_util.value
def nvmlSystemGetTopologyGpuSet(cpuNumber):
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlSystemGetTopologyGpuSet")
# First call will get the size
ret = fn(cpuNumber, byref(c_count), None)
if ret != NVML_SUCCESS:
raise NVMLError(ret)
# call again with a buffer
device_array = c_nvmlDevice_t * c_count.value
c_devices = device_array()
ret = fn(cpuNumber, byref(c_count), c_devices)
_nvmlCheckReturn(ret)
return list(c_devices[0:c_count.value])
def nvmlDeviceGetTopologyNearestGpus(device, level):
c_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetTopologyNearestGpus")
# First call will get the size
ret = fn(device, level, byref(c_count), None)
if ret != NVML_SUCCESS:
raise NVMLError(ret)
# call again with a buffer
device_array = c_nvmlDevice_t * c_count.value
c_devices = device_array()
ret = fn(device, level, byref(c_count), c_devices)
_nvmlCheckReturn(ret)
return list(c_devices[0:c_count.value])
def nvmlDeviceGetTopologyCommonAncestor(device1, device2):
c_level = _nvmlGpuTopologyLevel_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetTopologyCommonAncestor")
ret = fn(device1, device2, byref(c_level))
_nvmlCheckReturn(ret)
return c_level.value
def nvmlDeviceGetNvLinkUtilizationCounter(device, link, counter):
c_rxcounter = c_ulonglong()
c_txcounter = c_ulonglong()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNvLinkUtilizationCounter")
ret = fn(device, link, counter, byref(c_rxcounter), byref(c_txcounter))
_nvmlCheckReturn(ret)
return (c_rxcounter.value, c_txcounter.value)
def nvmlDeviceFreezeNvLinkUtilizationCounter(device, link, counter, freeze):
fn = _nvmlGetFunctionPointer("nvmlDeviceFreezeNvLinkUtilizationCounter")
ret = fn(device, link, counter, freeze)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceResetNvLinkUtilizationCounter(device, link, counter):
fn = _nvmlGetFunctionPointer("nvmlDeviceResetNvLinkUtilizationCounter")
ret = fn(device, link, counter)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceSetNvLinkUtilizationControl(device, link, counter, control, reset):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetNvLinkUtilizationControl")
ret = fn(device, link, counter, byref(control), reset)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceGetNvLinkUtilizationControl(device, link, counter):
c_control = nvmlNvLinkUtilizationControl_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNvLinkUtilizationControl")
ret = fn(device, link, counter, byref(c_control))
_nvmlCheckReturn(ret)
return c_control
def nvmlDeviceGetNvLinkCapability(device, link, capability):
c_capResult = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNvLinkCapability")
ret = fn(device, link, capability, byref(c_capResult))
_nvmlCheckReturn(ret)
return c_capResult.value
def nvmlDeviceGetNvLinkErrorCounter(device, link, counter):
c_result = c_ulonglong()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNvLinkErrorCounter")
ret = fn(device, link, counter, byref(c_result))
_nvmlCheckReturn(ret)
return c_result.value
def nvmlDeviceResetNvLinkErrorCounters(device, link):
fn = _nvmlGetFunctionPointer("nvmlDeviceResetNvLinkErrorCounters")
ret = fn(device, link)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceGetNvLinkRemotePciInfo(device, link):
c_pci = nvmlPciInfo_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNvLinkRemotePciInfo_v2")
ret = fn(device, link, byref(c_pci))
_nvmlCheckReturn(ret)
return c_pci
def nvmlDeviceGetNvLinkRemoteDeviceType(handle, link):
c_type = _nvmlNvLinkDeviceType_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNvLinkRemoteDeviceType")
ret = fn(handle, link, byref(c_type))
_nvmlCheckReturn(ret)
return c_type.value
def nvmlDeviceGetNvLinkState(device, link):
c_isActive = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNvLinkState")
ret = fn(device, link, byref(c_isActive))
_nvmlCheckReturn(ret)
return c_isActive.value
def nvmlDeviceGetNvLinkVersion(device, link):
c_version = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNvLinkVersion")
ret = fn(device, link, byref(c_version))
_nvmlCheckReturn(ret)
return c_version.value
def nvmlDeviceModifyDrainState(pciInfo, newState):
fn = _nvmlGetFunctionPointer("nvmlDeviceModifyDrainState")
ret = fn(pointer(pciInfo), newState)
_nvmlCheckReturn(ret)
return None
def nvmlDeviceQueryDrainState(pciInfo):
c_newState = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceQueryDrainState")
ret = fn(pointer(pciInfo), byref(c_newState))
_nvmlCheckReturn(ret)
return c_newState.value
def nvmlDeviceRemoveGpu(pciInfo):
fn = _nvmlGetFunctionPointer("nvmlDeviceRemoveGpu")
ret = fn(pointer(pciInfo))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceDiscoverGpus(pciInfo):
fn = _nvmlGetFunctionPointer("nvmlDeviceDiscoverGpus")
ret = fn(pointer(pciInfo))
_nvmlCheckReturn(ret)
return None
def nvmlDeviceGetFieldValues(handle, fieldIds):
values_arr = c_nvmlFieldValue_t * len(fieldIds)
values = values_arr()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetFieldValues")
for i, fieldId in enumerate(fieldIds):
try:
(values[i].fieldId, values[i].scopeId) = fieldId
except TypeError:
values[i].fieldId = fieldId
ret = fn(handle, c_int32(len(fieldIds)), byref(values))
_nvmlCheckReturn(ret)
return values
def nvmlDeviceClearFieldValues(handle, fieldIds):
values_arr = c_nvmlFieldValue_t * len(fieldIds)
values = values_arr()
fn = _nvmlGetFunctionPointer("nvmlDeviceClearFieldValues")
for i, fieldId in enumerate(fieldIds):
try:
(values[i].fieldId, values[i].scopeId) = fieldId
except TypeError:
values[i].fieldId = fieldId
ret = fn(handle, c_int32(len(fieldIds)), byref(values))
_nvmlCheckReturn(ret)
return values
def nvmlDeviceGetVirtualizationMode(handle):
c_virtualization_mode = c_ulonglong()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVirtualizationMode")
ret = fn(handle, byref(c_virtualization_mode))
_nvmlCheckReturn(ret)
return c_virtualization_mode.value
def nvmlDeviceSetVirtualizationMode(handle, virtualization_mode):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetVirtualizationMode")
return fn(handle, virtualization_mode)
def nvmlGetVgpuDriverCapabilities(capability):
c_capResult = c_uint()
fn = _nvmlGetFunctionPointer("nvmlGetVgpuDriverCapabilities")
ret = fn(_nvmlVgpuDriverCapability_t(capability), byref(c_capResult))
_nvmlCheckReturn(ret)
return c_capResult.value
def nvmlDeviceGetVgpuCapabilities(handle, capability):
c_capResult = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVgpuCapabilities")
ret = fn(handle, _nvmlDeviceVgpuCapability_t(capability), byref(c_capResult))
_nvmlCheckReturn(ret)
return c_capResult.value
def nvmlDeviceGetSupportedVgpus(handle):
# first call to get the size
c_vgpu_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetSupportedVgpus")
ret = fn(handle, byref(c_vgpu_count), None)
if (ret == NVML_SUCCESS):
# special case, no supported vGPUs
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
vgpu_type_ids_array = _nvmlVgpuTypeId_t * c_vgpu_count.value
c_vgpu_type_ids = vgpu_type_ids_array()
# make the call again
ret = fn(handle, byref(c_vgpu_count), c_vgpu_type_ids)
_nvmlCheckReturn(ret)
vgpus = []
for i in range(c_vgpu_count.value):
vgpus.append(c_vgpu_type_ids[i])
return vgpus
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetCreatableVgpus(handle):
# first call to get the size
c_vgpu_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetCreatableVgpus")
ret = fn(handle, byref(c_vgpu_count), None)
if (ret == NVML_SUCCESS):
# special case, no supported vGPUs
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
vgpu_type_ids_array = _nvmlVgpuTypeId_t * c_vgpu_count.value
c_vgpu_type_ids = vgpu_type_ids_array()
# make the call again
ret = fn(handle, byref(c_vgpu_count), c_vgpu_type_ids)
_nvmlCheckReturn(ret)
vgpus = []
for i in range(c_vgpu_count.value):
vgpus.append(c_vgpu_type_ids[i])
return vgpus
else:
# error case
raise NVMLError(ret)
def nvmlVgpuTypeGetGpuInstanceProfileId(vgpuTypeId):
c_profile_id = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetGpuInstanceProfileId")
ret = fn(vgpuTypeId, byref(c_profile_id))
_nvmlCheckReturn(ret)
return (c_profile_id.value)
@convertStrBytes
def nvmlVgpuTypeGetClass(vgpuTypeId):
c_class = create_string_buffer(NVML_DEVICE_NAME_BUFFER_SIZE)
c_buffer_size = c_uint(NVML_DEVICE_NAME_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetClass")
ret = fn(vgpuTypeId, c_class, byref(c_buffer_size))
_nvmlCheckReturn(ret)
return c_class.value
@convertStrBytes
def nvmlVgpuTypeGetName(vgpuTypeId):
c_name = create_string_buffer(NVML_DEVICE_NAME_BUFFER_SIZE)
c_buffer_size = c_uint(NVML_DEVICE_NAME_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetName")
ret = fn(vgpuTypeId, c_name, byref(c_buffer_size))
_nvmlCheckReturn(ret)
return c_name.value
def nvmlVgpuTypeGetDeviceID(vgpuTypeId):
c_device_id = c_ulonglong(0)
c_subsystem_id = c_ulonglong(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetDeviceID")
ret = fn(vgpuTypeId, byref(c_device_id), byref(c_subsystem_id))
_nvmlCheckReturn(ret)
return (c_device_id.value, c_subsystem_id.value)
def nvmlVgpuTypeGetFramebufferSize(vgpuTypeId):
c_fb_size = c_ulonglong(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetFramebufferSize")
ret = fn(vgpuTypeId, byref(c_fb_size))
_nvmlCheckReturn(ret)
return c_fb_size.value
def nvmlVgpuTypeGetNumDisplayHeads(vgpuTypeId):
c_num_heads = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetNumDisplayHeads")
ret = fn(vgpuTypeId, byref(c_num_heads))
_nvmlCheckReturn(ret)
return c_num_heads.value
def nvmlVgpuTypeGetResolution(vgpuTypeId):
c_xdim = c_uint(0)
c_ydim = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetResolution")
ret = fn(vgpuTypeId, 0, byref(c_xdim), byref(c_ydim))
_nvmlCheckReturn(ret)
return (c_xdim.value, c_ydim.value)
@convertStrBytes
def nvmlVgpuTypeGetLicense(vgpuTypeId):
c_license = create_string_buffer(NVML_GRID_LICENSE_BUFFER_SIZE)
c_buffer_size = c_uint(NVML_GRID_LICENSE_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetLicense")
ret = fn(vgpuTypeId, c_license, c_buffer_size)
_nvmlCheckReturn(ret)
return c_license.value
def nvmlVgpuTypeGetFrameRateLimit(vgpuTypeId):
c_frl_config = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetFrameRateLimit")
ret = fn(vgpuTypeId, byref(c_frl_config))
_nvmlCheckReturn(ret)
return c_frl_config.value
def nvmlVgpuTypeGetMaxInstances(handle, vgpuTypeId):
c_max_instances = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetMaxInstances")
ret = fn(handle, vgpuTypeId, byref(c_max_instances))
_nvmlCheckReturn(ret)
return c_max_instances.value
def nvmlVgpuTypeGetMaxInstancesPerVm(vgpuTypeId):
c_max_instances_per_vm = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetMaxInstancesPerVm")
ret = fn(vgpuTypeId, byref(c_max_instances_per_vm))
_nvmlCheckReturn(ret)
return c_max_instances_per_vm.value
def nvmlDeviceGetActiveVgpus(handle):
# first call to get the size
c_vgpu_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetActiveVgpus")
ret = fn(handle, byref(c_vgpu_count), None)
if (ret == NVML_SUCCESS):
# special case, no active vGPUs
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
vgpu_instance_array = _nvmlVgpuInstance_t * c_vgpu_count.value
c_vgpu_instances = vgpu_instance_array()
# make the call again
ret = fn(handle, byref(c_vgpu_count), c_vgpu_instances)
_nvmlCheckReturn(ret)
vgpus = []
for i in range(c_vgpu_count.value):
vgpus.append(c_vgpu_instances[i])
return vgpus
else:
# error case
raise NVMLError(ret)
@convertStrBytes
def nvmlVgpuInstanceGetVmID(vgpuInstance):
c_vm_id = create_string_buffer(NVML_DEVICE_UUID_BUFFER_SIZE)
c_buffer_size = c_uint(NVML_GRID_LICENSE_BUFFER_SIZE)
c_vm_id_type = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetVmID")
ret = fn(vgpuInstance, byref(c_vm_id), c_buffer_size, byref(c_vm_id_type))
_nvmlCheckReturn(ret)
return (c_vm_id.value, c_vm_id_type.value)
@convertStrBytes
def nvmlVgpuInstanceGetUUID(vgpuInstance):
c_uuid = create_string_buffer(NVML_DEVICE_UUID_BUFFER_SIZE)
c_buffer_size = c_uint(NVML_DEVICE_UUID_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetUUID")
ret = fn(vgpuInstance, byref(c_uuid), c_buffer_size)
_nvmlCheckReturn(ret)
return c_uuid.value
@convertStrBytes
def nvmlVgpuInstanceGetMdevUUID(vgpuInstance):
c_uuid = create_string_buffer(NVML_DEVICE_UUID_BUFFER_SIZE)
c_buffer_size = c_uint(NVML_DEVICE_UUID_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetMdevUUID")
ret = fn(vgpuInstance, byref(c_uuid), c_buffer_size)
_nvmlCheckReturn(ret)
return c_uuid.value
@convertStrBytes
def nvmlVgpuInstanceGetVmDriverVersion(vgpuInstance):
c_driver_version = create_string_buffer(NVML_SYSTEM_DRIVER_VERSION_BUFFER_SIZE)
c_buffer_size = c_uint(NVML_SYSTEM_DRIVER_VERSION_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetVmDriverVersion")
ret = fn(vgpuInstance, byref(c_driver_version), c_buffer_size)
_nvmlCheckReturn(ret)
return c_driver_version.value
def nvmlVgpuInstanceGetLicenseStatus(vgpuInstance):
c_license_status = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetLicenseStatus")
ret = fn(vgpuInstance, byref(c_license_status))
_nvmlCheckReturn(ret)
return c_license_status.value
def nvmlVgpuInstanceGetLicenseInfo_v2(vgpuInstance):
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetLicenseInfo_v2")
c_license_info = c_nvmlVgpuLicenseInfo_t()
ret = fn(vgpuInstance, byref(c_license_info))
_nvmlCheckReturn(ret)
return c_license_info
def nvmlVgpuInstanceGetLicenseInfo(vgpuInstance):
return nvmlVgpuInstanceGetLicenseInfo_v2(vgpuInstance)
def nvmlVgpuInstanceGetFrameRateLimit(vgpuInstance):
c_frl = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetFrameRateLimit")
ret = fn(vgpuInstance, byref(c_frl))
_nvmlCheckReturn(ret)
return c_frl.value
def nvmlVgpuInstanceGetEccMode(vgpuInstance):
c_mode = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetEccMode")
ret = fn(vgpuInstance, byref(c_mode))
_nvmlCheckReturn(ret)
return c_mode.value
def nvmlVgpuInstanceGetType(vgpuInstance):
c_vgpu_type = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetType")
ret = fn(vgpuInstance, byref(c_vgpu_type))
_nvmlCheckReturn(ret)
return c_vgpu_type.value
def nvmlVgpuInstanceGetEncoderCapacity(vgpuInstance):
c_encoder_capacity = c_ulonglong(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetEncoderCapacity")
ret = fn(vgpuInstance, byref(c_encoder_capacity))
_nvmlCheckReturn(ret)
return c_encoder_capacity.value
def nvmlVgpuInstanceSetEncoderCapacity(vgpuInstance, encoder_capacity):
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceSetEncoderCapacity")
return fn(vgpuInstance, encoder_capacity)
def nvmlVgpuInstanceGetFbUsage(vgpuInstance):
c_fb_usage = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetFbUsage")
ret = fn(vgpuInstance, byref(c_fb_usage))
_nvmlCheckReturn(ret)
return c_fb_usage.value
def nvmlVgpuTypeGetCapabilities(vgpuTypeId, capability):
c_cap_result = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuTypeGetCapabilities")
ret = fn(vgpuTypeId, _nvmlVgpuCapability_t(capability), byref(c_cap_result))
_nvmlCheckReturn(ret)
return (c_cap_result.value)
def nvmlVgpuInstanceGetGpuInstanceId(vgpuInstance):
c_id = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetGpuInstanceId")
ret = fn(vgpuInstance, byref(c_id))
_nvmlCheckReturn(ret)
return (c_id.value)
@convertStrBytes
def nvmlVgpuInstanceGetGpuPciId(vgpuInstance):
c_vgpuPciId = create_string_buffer(NVML_DEVICE_PCI_BUS_ID_BUFFER_SIZE)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetGpuPciId")
ret = fn(vgpuInstance, c_vgpuPciId, byref(c_uint(NVML_DEVICE_PCI_BUS_ID_BUFFER_SIZE)))
_nvmlCheckReturn(ret)
return c_vgpuPciId.value
def nvmlDeviceGetVgpuUtilization(handle, timeStamp):
# first call to get the size
c_vgpu_count = c_uint(0)
c_time_stamp = c_ulonglong(timeStamp)
c_sample_value_type = _nvmlValueType_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVgpuUtilization")
ret = fn(handle, c_time_stamp, byref(c_sample_value_type), byref(c_vgpu_count), None)
if (ret == NVML_SUCCESS):
# special case, no active vGPUs
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
sampleArray = c_vgpu_count.value * c_nvmlVgpuInstanceUtilizationSample_t
c_samples = sampleArray()
# make the call again
ret = fn(handle, c_time_stamp, byref(c_sample_value_type), byref(c_vgpu_count), c_samples)
_nvmlCheckReturn(ret)
return c_samples[0:c_vgpu_count.value]
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetP2PStatus(device1, device2, p2pIndex):
c_p2pstatus = _nvmlGpuP2PStatus_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetP2PStatus")
ret = fn(device1, device2, p2pIndex, byref(c_p2pstatus))
_nvmlCheckReturn(ret)
return c_p2pstatus.value
def nvmlDeviceGetGridLicensableFeatures_v4(handle):
c_get_grid_licensable_features = c_nvmlGridLicensableFeatures_v4_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGridLicensableFeatures_v4")
ret = fn(handle, byref(c_get_grid_licensable_features))
_nvmlCheckReturn(ret)
return (c_get_grid_licensable_features)
def nvmlDeviceGetGridLicensableFeatures(handle):
return nvmlDeviceGetGridLicensableFeatures_v4(handle)
def nvmlDeviceGetGspFirmwareVersion(handle, version):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGspFirmwareVersion")
ret = fn(handle, version)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetGspFirmwareMode(handle, isEnabled, defaultMode):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGspFirmwareMode")
ret = fn(handle, isEnabled, defaultMode)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetEncoderCapacity(handle, encoderQueryType):
c_encoder_capacity = c_ulonglong(0)
c_encoderQuery_type = _nvmlEncoderQueryType_t(encoderQueryType)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetEncoderCapacity")
ret = fn(handle, c_encoderQuery_type, byref(c_encoder_capacity))
_nvmlCheckReturn(ret)
return c_encoder_capacity.value
def nvmlDeviceGetVgpuProcessUtilization(handle, timeStamp):
# first call to get the size
c_vgpu_count = c_uint(0)
c_time_stamp = c_ulonglong(timeStamp)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVgpuProcessUtilization")
ret = fn(handle, c_time_stamp, byref(c_vgpu_count), None)
if (ret == NVML_SUCCESS):
# special case, no active vGPUs
return []
elif (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
sampleArray = c_vgpu_count.value * c_nvmlVgpuProcessUtilizationSample_t
c_samples = sampleArray()
# make the call again
ret = fn(handle, c_time_stamp, byref(c_vgpu_count), c_samples)
_nvmlCheckReturn(ret)
return c_samples[0:c_vgpu_count.value]
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetEncoderStats(handle):
c_encoderCount = c_ulonglong(0)
c_encodeFps = c_ulonglong(0)
c_encoderLatency = c_ulonglong(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetEncoderStats")
ret = fn(handle, byref(c_encoderCount), byref(c_encodeFps), byref(c_encoderLatency))
_nvmlCheckReturn(ret)
return (c_encoderCount.value, c_encodeFps.value, c_encoderLatency.value)
def nvmlDeviceGetEncoderSessions(handle):
# first call to get the size
c_session_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetEncoderSessions")
ret = fn(handle, byref(c_session_count), None)
if (ret == NVML_SUCCESS):
if (c_session_count.value != 0):
# typical case
session_array = c_nvmlEncoderSession_t * c_session_count.value
c_sessions = session_array()
# make the call again
ret = fn(handle, byref(c_session_count), c_sessions)
_nvmlCheckReturn(ret)
sessions = []
for i in range(c_session_count.value):
sessions.append(c_sessions[i])
return sessions
else:
return [] # no active sessions
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetFBCStats(handle):
c_fbcStats = c_nvmlFBCStats_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetFBCStats")
ret = fn(handle, byref(c_fbcStats))
_nvmlCheckReturn(ret)
return c_fbcStats
def nvmlDeviceGetFBCSessions(handle):
# first call to get the size
c_session_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetFBCSessions")
ret = fn(handle, byref(c_session_count), None)
if (ret == NVML_SUCCESS):
if (c_session_count.value != 0):
# typical case
session_array = c_nvmlFBCSession_t * c_session_count.value
c_sessions = session_array()
# make the call again
ret = fn(handle, byref(c_session_count), c_sessions)
_nvmlCheckReturn(ret)
sessions = []
for i in range(c_session_count.value):
sessions.append(c_sessions[i])
return sessions
else:
return [] # no active sessions
else:
# error case
raise NVMLError(ret)
def nvmlVgpuInstanceGetEncoderStats(vgpuInstance):
c_encoderCount = c_ulonglong(0)
c_encodeFps = c_ulonglong(0)
c_encoderLatency = c_ulonglong(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetEncoderStats")
ret = fn(vgpuInstance, byref(c_encoderCount), byref(c_encodeFps), byref(c_encoderLatency))
_nvmlCheckReturn(ret)
return (c_encoderCount.value, c_encodeFps.value, c_encoderLatency.value)
def nvmlVgpuInstanceGetEncoderSessions(vgpuInstance):
# first call to get the size
c_session_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetEncoderSessions")
ret = fn(vgpuInstance, byref(c_session_count), None)
if (ret == NVML_SUCCESS):
if (c_session_count.value != 0):
# typical case
session_array = c_nvmlEncoderSession_t * c_session_count.value
c_sessions = session_array()
# make the call again
ret = fn(vgpuInstance, byref(c_session_count), c_sessions)
_nvmlCheckReturn(ret)
sessions = []
for i in range(c_session_count.value):
sessions.append(c_sessions[i])
return sessions
else:
return [] # no active sessions
else:
# error case
raise NVMLError(ret)
def nvmlVgpuInstanceGetFBCStats(vgpuInstance):
c_fbcStats = c_nvmlFBCStats_t()
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetFBCStats")
ret = fn(vgpuInstance, byref(c_fbcStats))
_nvmlCheckReturn(ret)
return c_fbcStats
def nvmlVgpuInstanceGetFBCSessions(vgpuInstance):
# first call to get the size
c_session_count = c_uint(0)
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetFBCSessions")
ret = fn(vgpuInstance, byref(c_session_count), None)
if (ret == NVML_SUCCESS):
if (c_session_count.value != 0):
# typical case
session_array = c_nvmlFBCSession_t * c_session_count.value
c_sessions = session_array()
# make the call again
ret = fn(vgpuInstance, byref(c_session_count), c_sessions)
_nvmlCheckReturn(ret)
sessions = []
for i in range(c_session_count.value):
sessions.append(c_sessions[i])
return sessions
else:
return [] # no active sessions
else:
# error case
raise NVMLError(ret)
def nvmlDeviceGetProcessUtilization(handle, timeStamp):
# first call to get the size
c_count = c_uint(0)
c_time_stamp = c_ulonglong(timeStamp)
fn = _nvmlGetFunctionPointer("nvmlDeviceGetProcessUtilization")
ret = fn(handle, None, byref(c_count), c_time_stamp)
if (ret == NVML_ERROR_INSUFFICIENT_SIZE):
# typical case
sampleArray = c_count.value * c_nvmlProcessUtilizationSample_t
c_samples = sampleArray()
# make the call again
ret = fn(handle, c_samples, byref(c_count), c_time_stamp)
_nvmlCheckReturn(ret)
return c_samples[0:c_count.value]
else:
# error case
raise NVMLError(ret)
def nvmlVgpuInstanceGetMetadata(vgpuInstance):
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetMetadata")
c_vgpuMetadata = c_nvmlVgpuMetadata_t()
c_bufferSize = c_uint(0)
# Make the first NVML API call to get the c_bufferSize value.
# We have already allocated required buffer above.
ret = fn(vgpuInstance, byref(c_vgpuMetadata), byref(c_bufferSize))
if (ret == NVML_ERROR_INSUFFICIENT_SIZE):
ret = fn(vgpuInstance, byref(c_vgpuMetadata), byref(c_bufferSize))
_nvmlCheckReturn(ret)
else:
raise NVMLError(ret)
return c_vgpuMetadata
def nvmlDeviceGetVgpuMetadata(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVgpuMetadata")
c_vgpuPgpuMetadata = c_nvmlVgpuPgpuMetadata_t()
c_bufferSize = c_uint(0)
# Make the first NVML API call to get the c_bufferSize value.
# We have already allocated required buffer above.
ret = fn(handle, byref(c_vgpuPgpuMetadata), byref(c_bufferSize))
if (ret == NVML_ERROR_INSUFFICIENT_SIZE):
ret = fn(handle, byref(c_vgpuPgpuMetadata), byref(c_bufferSize))
_nvmlCheckReturn(ret)
else:
raise NVMLError(ret)
return c_vgpuPgpuMetadata
def nvmlGetVgpuCompatibility(vgpuMetadata, pgpuMetadata):
fn = _nvmlGetFunctionPointer("nvmlGetVgpuCompatibility")
c_vgpuPgpuCompatibility = c_nvmlVgpuPgpuCompatibility_t()
ret = fn(byref(vgpuMetadata), byref(pgpuMetadata), byref(c_vgpuPgpuCompatibility))
_nvmlCheckReturn(ret)
return c_vgpuPgpuCompatibility
@convertStrBytes
def nvmlDeviceGetPgpuMetadataString(handle):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPgpuMetadataString")
c_pgpuMetadata = create_string_buffer(NVML_VGPU_PGPU_METADATA_OPAQUE_DATA_SIZE)
c_bufferSize = c_uint(0)
# Make the first NVML API call to get the c_bufferSize value.
# We have already allocated required buffer above.
ret = fn(handle, byref(c_pgpuMetadata), byref(c_bufferSize))
if (ret == NVML_ERROR_INSUFFICIENT_SIZE):
ret = fn(handle, byref(c_pgpuMetadata), byref(c_bufferSize))
_nvmlCheckReturn(ret)
else:
raise NVMLError(ret)
return (c_pgpuMetadata.value, c_bufferSize.value)
def nvmlDeviceGetVgpuSchedulerLog(handle):
c_vgpu_sched_log = c_nvmlVgpuSchedulerLog_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVgpuSchedulerLog")
ret = fn(handle, byref(c_vgpu_sched_log))
_nvmlCheckReturn(ret)
return c_vgpu_sched_log
def nvmlDeviceGetVgpuSchedulerState(handle):
c_vgpu_sched_state = c_nvmlVgpuSchedulerGetState_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVgpuSchedulerState")
ret = fn(handle, byref(c_vgpu_sched_state))
_nvmlCheckReturn(ret)
return c_vgpu_sched_state
def nvmlDeviceGetVgpuSchedulerCapabilities(handle):
c_vgpu_sched_caps = c_nvmlVgpuSchedulerCapabilities_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetVgpuSchedulerCapabilities")
ret = fn(handle, byref(c_vgpu_sched_caps))
_nvmlCheckReturn(ret)
return c_vgpu_sched_caps
def nvmlSetVgpuVersion(vgpuVersion):
fn = _nvmlGetFunctionPointer("nvmlSetVgpuVersion")
ret = fn(byref(vgpuVersion))
_nvmlCheckReturn(ret)
return ret
def nvmlGetVgpuVersion(supported, current):
fn = _nvmlGetFunctionPointer("nvmlGetVgpuVersion")
ret = fn(byref(supported), byref(current))
_nvmlCheckReturn(ret)
return ret
def nvmlVgpuInstanceGetAccountingMode(vgpuInstance):
c_mode = _nvmlEnableState_t()
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetAccountingMode")
ret = fn(vgpuInstance, byref(c_mode))
_nvmlCheckReturn(ret)
return c_mode.value
def nvmlVgpuInstanceGetAccountingPids(vgpuInstance):
c_pidCount = c_uint()
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetAccountingPids")
ret = fn(vgpuInstance, byref(c_pidCount), None)
if (ret == NVML_ERROR_INSUFFICIENT_SIZE):
sampleArray = c_pidCount.value * c_uint
c_pidArray = sampleArray()
ret = fn(vgpuInstance, byref(c_pidCount), byref(c_pidArray))
_nvmlCheckReturn(ret)
else:
raise NVMLError(ret)
return (c_pidCount, c_pidArray)
def nvmlVgpuInstanceGetAccountingStats(vgpuInstance, pid):
c_accountingStats = c_nvmlAccountingStats_t()
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceGetAccountingStats")
ret = fn(vgpuInstance, pid, byref(c_accountingStats))
_nvmlCheckReturn(ret)
return c_accountingStats
def nvmlVgpuInstanceClearAccountingPids(vgpuInstance):
fn = _nvmlGetFunctionPointer("nvmlVgpuInstanceClearAccountingPids")
ret = fn(vgpuInstance)
_nvmlCheckReturn(ret)
return ret
def nvmlGetExcludedDeviceCount():
c_count = c_uint()
fn = _nvmlGetFunctionPointer("nvmlGetExcludedDeviceCount")
ret = fn(byref(c_count))
_nvmlCheckReturn(ret)
return c_count.value
def nvmlGetExcludedDeviceInfoByIndex(index):
c_index = c_uint(index)
info = c_nvmlExcludedDeviceInfo_t()
fn = _nvmlGetFunctionPointer("nvmlGetExcludedDeviceInfoByIndex")
ret = fn(c_index, byref(info))
_nvmlCheckReturn(ret)
return info
def nvmlDeviceGetHostVgpuMode(handle):
c_host_vgpu_mode = _nvmlHostVgpuMode_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetHostVgpuMode")
ret = fn(handle, byref(c_host_vgpu_mode))
_nvmlCheckReturn(ret)
return c_host_vgpu_mode.value
def nvmlDeviceSetMigMode(device, mode):
c_activationStatus = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceSetMigMode")
ret = fn(device, mode, byref(c_activationStatus))
_nvmlCheckReturn(ret)
return c_activationStatus.value
def nvmlDeviceGetMigMode(device):
c_currentMode = c_uint()
c_pendingMode = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMigMode")
ret = fn(device, byref(c_currentMode), byref(c_pendingMode))
_nvmlCheckReturn(ret)
return [c_currentMode.value, c_pendingMode.value]
def nvmlDeviceGetGpuInstanceProfileInfo(device, profile, version=2):
if version == 2:
c_info = c_nvmlGpuInstanceProfileInfo_v2_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuInstanceProfileInfoV")
elif version == 1:
c_info = c_nvmlGpuInstanceProfileInfo_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuInstanceProfileInfo")
else:
raise NVMLError(NVML_ERROR_FUNCTION_NOT_FOUND)
ret = fn(device, profile, byref(c_info))
_nvmlCheckReturn(ret)
return c_info
# Define function alias for the API exposed by NVML
nvmlDeviceGetGpuInstanceProfileInfoV = nvmlDeviceGetGpuInstanceProfileInfo
def nvmlDeviceGetGpuInstanceRemainingCapacity(device, profileId):
c_count = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuInstanceRemainingCapacity")
ret = fn(device, profileId, byref(c_count))
_nvmlCheckReturn(ret)
return c_count.value
def nvmlDeviceGetGpuInstancePossiblePlacements(device, profileId, placementsRef, countRef):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuInstancePossiblePlacements_v2")
ret = fn(device, profileId, placementsRef, countRef)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceCreateGpuInstance(device, profileId):
c_instance = c_nvmlGpuInstance_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceCreateGpuInstance")
ret = fn(device, profileId, byref(c_instance))
_nvmlCheckReturn(ret)
return c_instance
def nvmlDeviceCreateGpuInstanceWithPlacement(device, profileId, placement):
c_instance = c_nvmlGpuInstance_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceCreateGpuInstanceWithPlacement")
ret = fn(device, profileId, placement, byref(c_instance))
_nvmlCheckReturn(ret)
return c_instance
def nvmlGpuInstanceDestroy(gpuInstance):
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceDestroy")
ret = fn(gpuInstance)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetGpuInstances(device, profileId, gpuInstancesRef, countRef):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuInstances")
ret = fn(device, profileId, gpuInstancesRef, countRef)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetGpuInstanceById(device, gpuInstanceId):
c_instance = c_nvmlGpuInstance_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuInstanceById")
ret = fn(device, gpuInstanceId, byref(c_instance))
_nvmlCheckReturn(ret)
return c_instance
def nvmlGpuInstanceGetInfo(gpuInstance):
c_info = c_nvmlGpuInstanceInfo_t()
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceGetInfo")
ret = fn(gpuInstance, byref(c_info))
_nvmlCheckReturn(ret)
return c_info
def nvmlGpuInstanceGetComputeInstanceProfileInfo(device, profile, engProfile, version=2):
if version == 2:
c_info = c_nvmlComputeInstanceProfileInfo_v2_t()
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceGetComputeInstanceProfileInfoV")
elif version == 1:
c_info = c_nvmlComputeInstanceProfileInfo_t()
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceGetComputeInstanceProfileInfo")
else:
raise NVMLError(NVML_ERROR_FUNCTION_NOT_FOUND)
ret = fn(device, profile, engProfile, byref(c_info))
_nvmlCheckReturn(ret)
return c_info
# Define function alias for the API exposed by NVML
nvmlGpuInstanceGetComputeInstanceProfileInfoV = nvmlGpuInstanceGetComputeInstanceProfileInfo
def nvmlGpuInstanceGetComputeInstanceRemainingCapacity(gpuInstance, profileId):
c_count = c_uint()
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceGetComputeInstanceRemainingCapacity")
ret = fn(gpuInstance, profileId, byref(c_count))
_nvmlCheckReturn(ret)
return c_count.value
def nvmlGpuInstanceGetComputeInstancePossiblePlacements(gpuInstance, profileId, placementsRef, countRef):
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceGetComputeInstancePossiblePlacements")
ret = fn(gpuInstance, profileId, placementsRef, countRef)
_nvmlCheckReturn(ret)
return ret
def nvmlGpuInstanceCreateComputeInstance(gpuInstance, profileId):
c_instance = c_nvmlComputeInstance_t()
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceCreateComputeInstance")
ret = fn(gpuInstance, profileId, byref(c_instance))
_nvmlCheckReturn(ret)
return c_instance
def nvmlGpuInstanceCreateComputeInstanceWithPlacement(gpuInstance, profileId, placement):
c_instance = c_nvmlComputeInstance_t()
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceCreateComputeInstanceWithPlacement")
ret = fn(gpuInstance, profileId, placement, byref(c_instance))
_nvmlCheckReturn(ret)
return c_instance
def nvmlComputeInstanceDestroy(computeInstance):
fn = _nvmlGetFunctionPointer("nvmlComputeInstanceDestroy")
ret = fn(computeInstance)
_nvmlCheckReturn(ret)
return ret
def nvmlGpuInstanceGetComputeInstances(gpuInstance, profileId, computeInstancesRef, countRef):
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceGetComputeInstances")
ret = fn(gpuInstance, profileId, computeInstancesRef, countRef)
_nvmlCheckReturn(ret)
return ret
def nvmlGpuInstanceGetComputeInstanceById(gpuInstance, computeInstanceId):
c_instance = c_nvmlComputeInstance_t()
fn = _nvmlGetFunctionPointer("nvmlGpuInstanceGetComputeInstanceById")
ret = fn(gpuInstance, computeInstanceId, byref(c_instance))
_nvmlCheckReturn(ret)
return c_instance
def nvmlComputeInstanceGetInfo_v2(computeInstance):
c_info = c_nvmlComputeInstanceInfo_t()
fn = _nvmlGetFunctionPointer("nvmlComputeInstanceGetInfo_v2")
ret = fn(computeInstance, byref(c_info))
_nvmlCheckReturn(ret)
return c_info
def nvmlComputeInstanceGetInfo(computeInstance):
return nvmlComputeInstanceGetInfo_v2(computeInstance)
def nvmlDeviceIsMigDeviceHandle(device):
c_isMigDevice = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceIsMigDeviceHandle")
ret = fn(device, byref(c_isMigDevice))
_nvmlCheckReturn(ret)
return c_isMigDevice
def nvmlDeviceGetGpuInstanceId(device):
c_gpuInstanceId = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuInstanceId")
ret = fn(device, byref(c_gpuInstanceId))
_nvmlCheckReturn(ret)
return c_gpuInstanceId.value
def nvmlDeviceGetComputeInstanceId(device):
c_computeInstanceId = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetComputeInstanceId")
ret = fn(device, byref(c_computeInstanceId))
_nvmlCheckReturn(ret)
return c_computeInstanceId.value
def nvmlDeviceGetMaxMigDeviceCount(device):
c_count = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMaxMigDeviceCount")
ret = fn(device, byref(c_count))
_nvmlCheckReturn(ret)
return c_count.value
def nvmlDeviceGetMigDeviceHandleByIndex(device, index):
c_index = c_uint(index)
migDevice = c_nvmlDevice_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMigDeviceHandleByIndex")
ret = fn(device, c_index, byref(migDevice))
_nvmlCheckReturn(ret)
return migDevice
def nvmlDeviceGetDeviceHandleFromMigDeviceHandle(migDevice):
device = c_nvmlDevice_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDeviceHandleFromMigDeviceHandle")
ret = fn(migDevice, byref(device))
_nvmlCheckReturn(ret)
return device
def nvmlDeviceGetAttributes_v2(device):
c_attrs = c_nvmlDeviceAttributes()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetAttributes_v2")
ret = fn(device, byref(c_attrs))
_nvmlCheckReturn(ret)
return c_attrs
def nvmlDeviceGetAttributes(device):
return nvmlDeviceGetAttributes_v2(device)
def nvmlDeviceGetRemappedRows(device):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetRemappedRows")
c_corr = c_uint()
c_unc = c_uint()
c_bpending = c_uint()
c_bfailure = c_uint()
ret = fn(device, byref(c_corr), byref(c_unc), byref(c_bpending), byref(c_bfailure))
_nvmlCheckReturn(ret)
return (c_corr.value, c_unc.value, c_bpending.value, c_bfailure.value)
def nvmlDeviceGetRowRemapperHistogram(device):
c_vals = c_nvmlRowRemapperHistogramValues()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetRowRemapperHistogram")
ret = fn(device, byref(c_vals))
_nvmlCheckReturn(ret)
return c_vals
def nvmlDeviceGetArchitecture(device):
arch = _nvmlDeviceArchitecture_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetArchitecture")
ret = fn(device, byref(arch))
_nvmlCheckReturn(ret)
return arch.value
def nvmlDeviceGetBusType(device):
c_busType = _nvmlBusType_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetBusType")
ret = fn(device, byref(c_busType))
_nvmlCheckReturn(ret)
return c_busType.value
def nvmlDeviceGetIrqNum(device):
c_irqNum = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetIrqNum")
ret = fn(device, byref(c_irqNum))
_nvmlCheckReturn(ret)
return c_irqNum.value
def nvmlDeviceGetNumGpuCores(device):
c_numCores = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetNumGpuCores")
ret = fn(device, byref(c_numCores))
_nvmlCheckReturn(ret)
return c_numCores.value
def nvmlDeviceGetPowerSource(device):
c_powerSource = _nvmlPowerSource_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPowerSource")
ret = fn(device, byref(c_powerSource))
_nvmlCheckReturn(ret)
return c_powerSource.value
def nvmlDeviceGetMemoryBusWidth(device):
c_memBusWidth = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMemoryBusWidth")
ret = fn(device, byref(c_memBusWidth))
_nvmlCheckReturn(ret)
return c_memBusWidth.value
def nvmlDeviceGetPcieLinkMaxSpeed(device):
c_speed = _nvmlPcieLinkMaxSpeed_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPcieLinkMaxSpeed")
ret = fn(device, byref(c_speed))
_nvmlCheckReturn(ret)
return c_speed.value
def nvmlDeviceGetAdaptiveClockInfoStatus(device):
c_adaptiveClockInfoStatus = _nvmlAdaptiveClockInfoStatus_t()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetAdaptiveClockInfoStatus")
ret = fn(device, byref(c_adaptiveClockInfoStatus))
_nvmlCheckReturn(ret)
return c_adaptiveClockInfoStatus.value
def nvmlDeviceGetPcieSpeed(device):
c_speed = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetPcieSpeed")
ret = fn(device, byref(c_speed))
_nvmlCheckReturn(ret)
return c_speed.value
def nvmlDeviceGetDynamicPstatesInfo(device, c_dynamicpstatesinfo):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetDynamicPstatesInfo")
ret = fn(device, c_dynamicpstatesinfo)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceSetFanSpeed_v2(handle, index, speed):
fn = _nvmlGetFunctionPointer("nvmlDeviceSetFanSpeed_v2")
ret = fn(handle, index, speed)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetThermalSettings(device, sensorindex, c_thermalsettings):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetThermalSettings")
ret = fn(device, sensorindex, c_thermalsettings)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetMinMaxClockOfPState(device, type, pstate, minClockMHz, maxClockMHz):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMinMaxClockOfPState")
ret = fn(device, _nvmlClockType_t(type), _nvmlClockType_t(pstate), minClockMHz, maxClockMHz)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetSupportedPerformanceStates(device):
pstates = []
c_count = c_uint(NVML_MAX_GPU_PERF_PSTATES)
c_size = sizeof(c_uint) * c_count.value
# NOTE: use 'c_uint' to represent the size of the nvmlPstate_t enumeration.
pstates_array = _nvmlPstates_t * c_count.value
c_pstates = pstates_array()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetSupportedPerformanceStates")
ret = fn(device, c_pstates, c_size)
_nvmlCheckReturn(ret)
for value in c_pstates:
if value != NVML_PSTATE_UNKNOWN:
pstates.append(value)
return pstates
def nvmlDeviceGetGpcClkVfOffset(device):
offset = c_int32()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpcClkVfOffset")
ret = fn(device, byref(offset))
_nvmlCheckReturn(ret)
return offset.value
def nvmlDeviceSetGpcClkVfOffset(device, offset):
c_offset = c_int32(offset)
fn = _nvmlGetFunctionPointer("nvmlDeviceSetGpcClkVfOffset")
ret = fn(device, c_offset)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetGpcClkMinMaxVfOffset(device, minOffset, maxOffset):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpcClkMinMaxVfOffset")
ret = fn(device, minOffset, maxOffset)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetMemClkVfOffset(device):
offset = c_int32()
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMemClkVfOffset")
ret = fn(device, byref(offset))
_nvmlCheckReturn(ret)
return offset.value
def nvmlDeviceSetMemClkVfOffset(device, offset):
c_offset = c_int32(offset)
fn = _nvmlGetFunctionPointer("nvmlDeviceSetMemClkVfOffset")
ret = fn(device, c_offset)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceGetMemClkMinMaxVfOffset(device, minOffset, maxOffset):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetMemClkMinMaxVfOffset")
ret = fn(device, minOffset, maxOffset)
_nvmlCheckReturn(ret)
return ret
## GPM ##
#########
## Enums/defines
#### GPM Metric Identifiers
NVML_GPM_METRIC_GRAPHICS_UTIL = 1 # Percentage of time any compute/graphics app was active on the GPU. 0.0 - 100.0
NVML_GPM_METRIC_SM_UTIL = 2 # Percentage of SMs that were busy. 0.0 - 100.0
NVML_GPM_METRIC_SM_OCCUPANCY = 3 # Percentage of warps that were active vs theoretical maximum. 0.0 - 100.0
NVML_GPM_METRIC_INTEGER_UTIL = 4 # Percentage of time the GPU's SMs were doing integer operations. 0.0 - 100.0
NVML_GPM_METRIC_ANY_TENSOR_UTIL = 5 # Percentage of time the GPU's SMs were doing ANY tensor operations. 0.0 - 100.0
NVML_GPM_METRIC_DFMA_TENSOR_UTIL = 6 # Percentage of time the GPU's SMs were doing DFMA tensor operations. 0.0 - 100.0
NVML_GPM_METRIC_HMMA_TENSOR_UTIL = 7 # Percentage of time the GPU's SMs were doing HMMA tensor operations. 0.0 - 100.0
NVML_GPM_METRIC_IMMA_TENSOR_UTIL = 9 # Percentage of time the GPU's SMs were doing IMMA tensor operations. 0.0 - 100.0
NVML_GPM_METRIC_DRAM_BW_UTIL = 10 # Percentage of DRAM bw used vs theoretical maximum. 0.0 - 100.0
NVML_GPM_METRIC_FP64_UTIL = 11 # Percentage of time the GPU's SMs were doing non-tensor FP64 math. 0.0 - 100.0
NVML_GPM_METRIC_FP32_UTIL = 12 # Percentage of time the GPU's SMs were doing non-tensor FP32 math. 0.0 - 100.0
NVML_GPM_METRIC_FP16_UTIL = 13 # Percentage of time the GPU's SMs were doing non-tensor FP16 math. 0.0 - 100.0
NVML_GPM_METRIC_PCIE_TX_PER_SEC = 20 # PCIe traffic from this GPU in MiB/sec
NVML_GPM_METRIC_PCIE_RX_PER_SEC = 21 # PCIe traffic to this GPU in MiB/sec
NVML_GPM_METRIC_NVDEC_0_UTIL = 30 # Percent utilization of NVDEC 0. 0.0 - 100.0
NVML_GPM_METRIC_NVDEC_1_UTIL = 31 # Percent utilization of NVDEC 1. 0.0 - 100.0
NVML_GPM_METRIC_NVDEC_2_UTIL = 32 # Percent utilization of NVDEC 2. 0.0 - 100.0
NVML_GPM_METRIC_NVDEC_3_UTIL = 33 # Percent utilization of NVDEC 3. 0.0 - 100.0
NVML_GPM_METRIC_NVDEC_4_UTIL = 34 # Percent utilization of NVDEC 4. 0.0 - 100.0
NVML_GPM_METRIC_NVDEC_5_UTIL = 35 # Percent utilization of NVDEC 5. 0.0 - 100.0
NVML_GPM_METRIC_NVDEC_6_UTIL = 36 # Percent utilization of NVDEC 6. 0.0 - 100.0
NVML_GPM_METRIC_NVDEC_7_UTIL = 37 # Percent utilization of NVDEC 7. 0.0 - 100.0
NVML_GPM_METRIC_NVJPG_0_UTIL = 40 # Percent utilization of NVJPG 0. 0.0 - 100.0
NVML_GPM_METRIC_NVJPG_1_UTIL = 41 # Percent utilization of NVJPG 1. 0.0 - 100.0
NVML_GPM_METRIC_NVJPG_2_UTIL = 42 # Percent utilization of NVJPG 2. 0.0 - 100.0
NVML_GPM_METRIC_NVJPG_3_UTIL = 43 # Percent utilization of NVJPG 3. 0.0 - 100.0
NVML_GPM_METRIC_NVJPG_4_UTIL = 44 # Percent utilization of NVJPG 4. 0.0 - 100.0
NVML_GPM_METRIC_NVJPG_5_UTIL = 45 # Percent utilization of NVJPG 5. 0.0 - 100.0
NVML_GPM_METRIC_NVJPG_6_UTIL = 46 # Percent utilization of NVJPG 6. 0.0 - 100.0
NVML_GPM_METRIC_NVJPG_7_UTIL = 47 # Percent utilization of NVJPG 7. 0.0 - 100.0
NVML_GPM_METRIC_NVOFA_0_UTIL = 50 # Percent utilization of NVOFA 0. 0.0 - 100.0
NVML_GPM_METRIC_NVLINK_TOTAL_RX_PER_SEC = 60 # NvLink read bandwidth for all links in MiB/sec
NVML_GPM_METRIC_NVLINK_TOTAL_TX_PER_SEC = 61 # NvLink write bandwidth for all links in MiB/sec
NVML_GPM_METRIC_NVLINK_L0_RX_PER_SEC = 62 # NvLink read bandwidth for link 0 in MiB/sec
NVML_GPM_METRIC_NVLINK_L0_TX_PER_SEC = 63 # NvLink write bandwidth for link 0 in MiB/sec
NVML_GPM_METRIC_NVLINK_L1_RX_PER_SEC = 64 # NvLink read bandwidth for link 1 in MiB/sec
NVML_GPM_METRIC_NVLINK_L1_TX_PER_SEC = 65 # NvLink write bandwidth for link 1 in MiB/sec
NVML_GPM_METRIC_NVLINK_L2_RX_PER_SEC = 66 # NvLink read bandwidth for link 2 in MiB/sec
NVML_GPM_METRIC_NVLINK_L2_TX_PER_SEC = 67 # NvLink write bandwidth for link 2 in MiB/sec
NVML_GPM_METRIC_NVLINK_L3_RX_PER_SEC = 68 # NvLink read bandwidth for link 3 in MiB/sec
NVML_GPM_METRIC_NVLINK_L3_TX_PER_SEC = 69 # NvLink write bandwidth for link 3 in MiB/sec
NVML_GPM_METRIC_NVLINK_L4_RX_PER_SEC = 70 # NvLink read bandwidth for link 4 in MiB/sec
NVML_GPM_METRIC_NVLINK_L4_TX_PER_SEC = 71 # NvLink write bandwidth for link 4 in MiB/sec
NVML_GPM_METRIC_NVLINK_L5_RX_PER_SEC = 72 # NvLink read bandwidth for link 5 in MiB/sec
NVML_GPM_METRIC_NVLINK_L5_TX_PER_SEC = 73 # NvLink write bandwidth for link 5 in MiB/sec
NVML_GPM_METRIC_NVLINK_L6_RX_PER_SEC = 74 # NvLink read bandwidth for link 6 in MiB/sec
NVML_GPM_METRIC_NVLINK_L6_TX_PER_SEC = 75 # NvLink write bandwidth for link 6 in MiB/sec
NVML_GPM_METRIC_NVLINK_L7_RX_PER_SEC = 76 # NvLink read bandwidth for link 7 in MiB/sec
NVML_GPM_METRIC_NVLINK_L7_TX_PER_SEC = 77 # NvLink write bandwidth for link 7 in MiB/sec
NVML_GPM_METRIC_NVLINK_L8_RX_PER_SEC = 78 # NvLink read bandwidth for link 8 in MiB/sec
NVML_GPM_METRIC_NVLINK_L8_TX_PER_SEC = 79 # NvLink write bandwidth for link 8 in MiB/sec
NVML_GPM_METRIC_NVLINK_L9_RX_PER_SEC = 80 # NvLink read bandwidth for link 9 in MiB/sec
NVML_GPM_METRIC_NVLINK_L9_TX_PER_SEC = 81 # NvLink write bandwidth for link 9 in MiB/sec
NVML_GPM_METRIC_NVLINK_L10_RX_PER_SEC = 82 # NvLink read bandwidth for link 10 in MiB/sec
NVML_GPM_METRIC_NVLINK_L10_TX_PER_SEC = 83 # NvLink write bandwidth for link 10 in MiB/sec
NVML_GPM_METRIC_NVLINK_L11_RX_PER_SEC = 84 # NvLink read bandwidth for link 11 in MiB/sec
NVML_GPM_METRIC_NVLINK_L11_TX_PER_SEC = 85 # NvLink write bandwidth for link 11 in MiB/sec
NVML_GPM_METRIC_NVLINK_L12_RX_PER_SEC = 86 # NvLink read bandwidth for link 12 in MiB/sec
NVML_GPM_METRIC_NVLINK_L12_TX_PER_SEC = 87 # NvLink write bandwidth for link 12 in MiB/sec
NVML_GPM_METRIC_NVLINK_L13_RX_PER_SEC = 88 # NvLink read bandwidth for link 13 in MiB/sec
NVML_GPM_METRIC_NVLINK_L13_TX_PER_SEC = 89 # NvLink write bandwidth for link 13 in MiB/sec
NVML_GPM_METRIC_NVLINK_L14_RX_PER_SEC = 90 # NvLink read bandwidth for link 14 in MiB/sec
NVML_GPM_METRIC_NVLINK_L14_TX_PER_SEC = 91 # NvLink write bandwidth for link 14 in MiB/sec
NVML_GPM_METRIC_NVLINK_L15_RX_PER_SEC = 92 # NvLink read bandwidth for link 15 in MiB/sec
NVML_GPM_METRIC_NVLINK_L15_TX_PER_SEC = 93 # NvLink write bandwidth for link 15 in MiB/sec
NVML_GPM_METRIC_NVLINK_L16_RX_PER_SEC = 94 # NvLink read bandwidth for link 16 in MiB/sec
NVML_GPM_METRIC_NVLINK_L16_TX_PER_SEC = 95 # NvLink write bandwidth for link 16 in MiB/sec
NVML_GPM_METRIC_NVLINK_L17_RX_PER_SEC = 96 # NvLink read bandwidth for link 17 in MiB/sec
NVML_GPM_METRIC_NVLINK_L17_TX_PER_SEC = 97 # NvLink write bandwidth for link 17 in MiB/sec
NVML_GPM_METRIC_MAX = 98
## Structs
class c_nvmlUnitInfo_t(_PrintableStructure):
_fields_ = [
('name', c_char * 96),
('id', c_char * 96),
('serial', c_char * 96),
('firmwareVersion', c_char * 96),
]
class struct_c_nvmlGpmSample_t(Structure):
pass # opaque handle
c_nvmlGpmSample_t = POINTER(struct_c_nvmlGpmSample_t)
class c_metricInfo_t(Structure):
_fields_ = [
("shortName", c_char_p),
("longName", c_char_p),
("unit", c_char_p),
]
class c_nvmlGpmMetric_t(_PrintableStructure):
_fields_ = [
('metricId', c_uint),
('nvmlReturn', _nvmlReturn_t),
('value', c_double),
('metricInfo', c_metricInfo_t)
]
class c_nvmlGpmMetricsGet_t(_PrintableStructure):
_fields_ = [
('version', c_uint),
('numMetrics', c_uint),
('sample1', c_nvmlGpmSample_t),
('sample2', c_nvmlGpmSample_t),
('metrics', c_nvmlGpmMetric_t * NVML_GPM_METRIC_MAX)
]
NVML_GPM_METRICS_GET_VERSION = 1
class c_nvmlGpmSupport_t(_PrintableStructure):
_fields_ = [
('version', c_uint),
('isSupportedDevice', c_uint),
]
NVML_GPM_SUPPORT_VERSION = 1
## Functions
def nvmlGpmMetricsGet(metricsGet):
fn = _nvmlGetFunctionPointer("nvmlGpmMetricsGet")
ret = fn(byref(metricsGet))
_nvmlCheckReturn(ret)
return metricsGet
def nvmlGpmSampleFree(gpmSample):
fn = _nvmlGetFunctionPointer("nvmlGpmSampleFree")
ret = fn(gpmSample)
_nvmlCheckReturn(ret)
return
def nvmlGpmSampleAlloc():
gpmSample = c_nvmlGpmSample_t()
fn = _nvmlGetFunctionPointer("nvmlGpmSampleAlloc")
ret = fn(byref(gpmSample))
_nvmlCheckReturn(ret)
return gpmSample
def nvmlGpmSampleGet(device, gpmSample):
fn = _nvmlGetFunctionPointer("nvmlGpmSampleGet")
ret = fn(device, gpmSample)
_nvmlCheckReturn(ret)
return gpmSample
def nvmlGpmMigSampleGet(device, gpuInstanceId, gpmSample):
fn = _nvmlGetFunctionPointer("nvmlGpmMigSampleGet")
ret = fn(device, gpuInstanceId, gpmSample)
_nvmlCheckReturn(ret)
return gpmSample
def nvmlGpmQueryDeviceSupport(device):
gpmSupport = c_nvmlGpmSupport_t()
gpmSupport.version = NVML_GPM_SUPPORT_VERSION
fn = _nvmlGetFunctionPointer("nvmlGpmQueryDeviceSupport")
ret = fn(device, byref(gpmSupport))
_nvmlCheckReturn(ret)
return gpmSupport
## CCU ##
#########
## Enums/defines
#### CCU Stream State
NVML_COUNTER_COLLECTION_UNIT_STREAM_STATE_DISABLE = 0
NVML_COUNTER_COLLECTION_UNIT_STREAM_STATE_ENABLE = 1
## Functions
def nvmlDeviceCcuSetStreamState(device, state):
c_state = c_uint(state)
fn = _nvmlGetFunctionPointer("nvmlDeviceCcuSetStreamState")
ret = fn(device, c_state)
_nvmlCheckReturn(ret)
return ret
def nvmlDeviceCcuGetStreamState(device):
c_state = c_uint()
fn = _nvmlGetFunctionPointer("nvmlDeviceCcuGetStreamState")
ret = fn(device, byref(c_state))
_nvmlCheckReturn(ret)
return c_state.value
# Low Power Structure and Function
class c_nvmlNvLinkPowerThres_t(Structure):
_fields_ = [
("lowPwrThreshold", c_uint),
]
def nvmlDeviceSetNvLinkDeviceLowPowerThreshold(device, l1threshold):
c_info = c_nvmlNvLinkPowerThres_t()
c_info.lowPwrThreshold = l1threshold
fn = _nvmlGetFunctionPointer("nvmlDeviceSetNvLinkDeviceLowPowerThreshold")
ret = fn(device, byref(c_info))
_nvmlCheckReturn(ret)
return ret
_nvmlGpuFabricState_t = c_uint
NVML_GPU_FABRIC_STATE_NOT_SUPPORTED = 0
NVML_GPU_FABRIC_STATE_NOT_STARTED = 1
NVML_GPU_FABRIC_STATE_IN_PROGRESS = 2
NVML_GPU_FABRIC_STATE_COMPLETED = 3
class c_nvmlGpuFabricInfo_t(_PrintableStructure):
_fields_ = [
("clusterUuid", c_char * NVML_DEVICE_UUID_BUFFER_SIZE),
("status", _nvmlReturn_t),
("partitionId", c_uint32),
("state", _nvmlGpuFabricState_t)
]
def nvmlDeviceGetGpuFabricInfo(device, gpuFabricInfo):
fn = _nvmlGetFunctionPointer("nvmlDeviceGetGpuFabricInfo")
ret = fn(device, gpuFabricInfo)
_nvmlCheckReturn(ret)
return ret
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