mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 16:29:18 +00:00
82 lines
2.2 KiB
Go
82 lines
2.2 KiB
Go
/**
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# Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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**/
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package info
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import (
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"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
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"github.com/container-orchestrated-devices/container-device-interface/pkg/cdi"
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"gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvlib/info"
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)
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// infoInterface provides an alias for mocking.
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//
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//go:generate moq -stub -out info-interface_mock.go . infoInterface
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type infoInterface info.Interface
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type resolver struct {
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logger logger.Interface
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info info.Interface
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}
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// ResolveAutoMode determines the correct mode for the platform if set to "auto"
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func ResolveAutoMode(logger logger.Interface, mode string, image image.CUDA) (rmode string) {
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nvinfo := info.New()
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r := resolver{
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logger: logger,
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info: nvinfo,
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}
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return r.resolveMode(mode, image)
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}
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// resolveMode determines the correct mode for the platform if set to "auto"
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func (r resolver) resolveMode(mode string, image image.CUDA) (rmode string) {
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if mode != "auto" {
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return mode
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}
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defer func() {
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r.logger.Infof("Auto-detected mode as '%v'", rmode)
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}()
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if onlyFullyQualifiedCDIDevices(image) {
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return "cdi"
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}
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isTegra, reason := r.info.IsTegraSystem()
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r.logger.Debugf("Is Tegra-based system? %v: %v", isTegra, reason)
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hasNVML, reason := r.info.HasNvml()
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r.logger.Debugf("Has NVML? %v: %v", hasNVML, reason)
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if isTegra && !hasNVML {
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return "csv"
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}
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return "legacy"
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}
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func onlyFullyQualifiedCDIDevices(image image.CUDA) bool {
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var hasCDIdevice bool
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for _, device := range image.DevicesFromEnvvars("NVIDIA_VISIBLE_DEVICES").List() {
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if !cdi.IsQualifiedName(device) {
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return false
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}
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hasCDIdevice = true
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}
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return hasCDIdevice
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}
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