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如何自动启用 nvidia-uvm？

tag-icon • tag-icon drivers nvidia cuda opencl darktable
如何自动启用 nvidia-uvm？

为了每次在启动 darktable 之前使用 OpenCL 的 darktable，我必须发出

sudo modprobe nvidia-uvm
sudo mknod -m 666 /dev/nvidia-uvm c 250 0

默认启用 nvidia-uvm 的正确方法是什么？

问候，奥利弗

答案1

CUDA 文档中描述了正确的方法：
https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#runfile-verifications

上面链接的脚本：

#!/bin/bash

/sbin/modprobe nvidia

if [ "$?" -eq 0 ]; then
  # Count the number of NVIDIA controllers found.
  NVDEVS=`lspci | grep -i NVIDIA`
  N3D=`echo "$NVDEVS" | grep "3D controller" | wc -l`
  NVGA=`echo "$NVDEVS" | grep "VGA compatible controller" | wc -l`

  N=`expr $N3D + $NVGA - 1`
  for i in `seq 0 $N`; do
    mknod -m 666 /dev/nvidia$i c 195 $i
  done

  mknod -m 666 /dev/nvidiactl c 195 255

else
  exit 1
fi

/sbin/modprobe nvidia-uvm

if [ "$?" -eq 0 ]; then
  # Find out the major device number used by the nvidia-uvm driver
  D=`grep nvidia-uvm /proc/devices | awk '{print $1}'`

  mknod -m 666 /dev/nvidia-uvm c $D 0
else
  exit 1
fi

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