mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
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b21dc929ef
These changes add a wsl discovery mode to the nvidia-ctk cdi generate command. If wsl mode is enabled, the driver store for the available devices is used as the source for discovered entities. Signed-off-by: Evan Lezar <elezar@nvidia.com>
107 lines
3.5 KiB
Go
107 lines
3.5 KiB
Go
/**
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# Copyright (c) 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 nvcdi
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import (
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"fmt"
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"path/filepath"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/dxcore"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
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"github.com/sirupsen/logrus"
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)
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var requiredDriverStoreFiles = []string{
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"libcuda.so.1.1", /* Core library for cuda support */
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"libcuda_loader.so", /* Core library for cuda support on WSL */
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"libnvidia-ptxjitcompiler.so.1", /* Core library for PTX Jit support */
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"libnvidia-ml.so.1", /* Core library for nvml */
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"libnvidia-ml_loader.so", /* Core library for nvml on WSL */
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"libdxcore.so", /* Core library for dxcore support */
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"nvcubins.bin", /* Binary containing GPU code for cuda */
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"nvidia-smi", /* nvidia-smi binary*/
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}
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// newWSLDriverDiscoverer returns a Discoverer for WSL2 drivers.
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func newWSLDriverDiscoverer(logger *logrus.Logger, driverRoot string, nvidiaCTKPath string) (discover.Discover, error) {
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err := dxcore.Init()
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if err != nil {
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return nil, fmt.Errorf("failed to initialize dxcore: %v", err)
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}
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defer dxcore.Shutdown()
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driverStorePaths := dxcore.GetDriverStorePaths()
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if len(driverStorePaths) == 0 {
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return nil, fmt.Errorf("no driver store paths found")
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}
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logger.Infof("Using WSL driver store paths: %v", driverStorePaths)
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return newWSLDriverStoreDiscoverer(logger, driverRoot, nvidiaCTKPath, driverStorePaths)
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}
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// newWSLDriverStoreDiscoverer returns a Discoverer for WSL2 drivers in the driver store associated with a dxcore adapter.
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func newWSLDriverStoreDiscoverer(logger *logrus.Logger, driverRoot string, nvidiaCTKPath string, driverStorePaths []string) (discover.Discover, error) {
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var searchPaths []string
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seen := make(map[string]bool)
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for _, path := range driverStorePaths {
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if seen[path] {
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continue
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}
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searchPaths = append(searchPaths, path)
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}
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if len(searchPaths) > 1 {
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logger.Warnf("Found multiple driver store paths: %v", searchPaths)
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}
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driverStorePath := searchPaths[0]
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searchPaths = append(searchPaths, "/usr/lib/wsl/lib")
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libraries := discover.NewMounts(
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logger,
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lookup.NewFileLocator(
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lookup.WithLogger(logger),
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lookup.WithSearchPaths(
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searchPaths...,
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),
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lookup.WithCount(1),
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),
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driverRoot,
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requiredDriverStoreFiles,
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)
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// On WSL2 the driver store location is used unchanged.
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// For this reason we need to create a symlink from /usr/bin/nvidia-smi to the nvidia-smi binary in the driver store.
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target := filepath.Join(driverStorePath, "nvidia-smi")
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link := "/usr/bin/nvidia-smi"
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links := []string{fmt.Sprintf("%s::%s", target, link)}
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symlinkHook := discover.CreateCreateSymlinkHook(nvidiaCTKPath, links)
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cfg := &discover.Config{
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DriverRoot: driverRoot,
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NvidiaCTKPath: nvidiaCTKPath,
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}
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ldcacheHook, _ := discover.NewLDCacheUpdateHook(logger, libraries, cfg)
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d := discover.Merge(
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libraries,
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symlinkHook,
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ldcacheHook,
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)
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return d, nil
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}
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