No process runs when querying GPU, but the video memory is occupied

Inquire about GPU There is no process running , But the video memory is occupied

1、 Specific performance

nvidia-smi perhaps gpustat No process in GPU Up operation , but GPU The video memory is occupied

2、 Cause

There should be a zombie process , It has finished running or is stuck , But the memory is not released , In a suspended state

3、 Solution

3.1 Scheme 1

Restart the computer

3.2 Option two

If the computer cannot be restarted , Then use the command line ：

fuser -v /dev/nvidia*
 Or when you have administrator privileges 
sudo fuser -v /dev/nvidia*

You can see the corresponding device , There is a process .

At the end of the day kill The command line kills the corresponding PID Number .

So it's over