nvidia GPU 스트레스 테스트

리눅스 nvidia gpu 스트레스 테스트.

1. 테스트환경
OS: CentOS 7
GPU : Nvidia Tesla V100-SXM2 x 4
CPU: Intel(R) Xeon(R) Gold 6242 CPU @ 2.80GHz
GPU tools: cuda toolkit

2. gpu burn 다운로드
http://wili.cc/blog/gpu-burn.html 에서 아래 파일을 다운로드 받는다.

http://wili.cc/blog/entries/gpu-burn/gpu_burn-1.0.tar.gz

# curl -O http://wili.cc/blog/entries/gpu-burn/gpu_burn-1.0.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  7289  100  7289    0     0   4666      0  0:00:01  0:00:01 --:--:--  4669

3. 컴파일 및 실행

다운로드 받은 파일을 풀면 아래 세가지 파일이 보인다.

# tar xvpzf gpu_burn-1.0.tar.gz
Makefile
gpu_burn-drv.cpp
compare.cu

이제, make 명령어로 컴파일한다.

# make

gpu_burn 실행해 본다.

# ./gpu_burn
Run length not specified in the command line.  Burning for 10 secs
GPU 0: Tesla V100-SXM2-32GB (UUID: GPU-4d5883b8-3425-a57d-f118-16a0e641e7a3)
GPU 1: Tesla V100-SXM2-32GB (UUID: GPU-6cf94ffe-8930-d4bc-3ea6-4fc7b521235a)
GPU 2: Tesla V100-SXM2-32GB (UUID: GPU-345d135f-3217-7863-35e3-4fdd3ca75eb4)
GPU 3: Tesla V100-SXM2-32GB (UUID: GPU-d9e03e1a-3d3f-9f6b-7b23-ad26921e4481)
Initialized device 0 with 32510 MB of memory (32123 MB available, using 28911 MB of it), using FLOATS
Initialized device 3 with 32510 MB of memory (32123 MB available, using 28911 MB of it), using FLOATS
Initialized device 2 with 32510 MB of memory (32123 MB available, using 28911 MB of it), using FLOATS
Initialized device 1 with 32510 MB of memory (32123 MB available, using 28911 MB of it), using FLOATS
50.0%  proc'd: 1804 (6968 Gflop/s) - 0 (0 Gflop/s) - 0 (0 Gflop/s) - 0 (0 Gflop/s)   errors: 0 - 0 - 0 - 0   temps: 33 C - 35 C - 33 C - 35 C
        Summary at:   Mon Mar  2 15:10:17 KST 2020

50.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 0 (0 Gflop/s) - 0 (0 Gflop/s)   errors: 0 - 0 - 0 - 0   t50.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 0 (0 Gflop/s)   errors: 0 - 0 - 0 -50.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 050.0%  proc'd: 1804 (6968 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 070.0%  proc'd: 3608 (13498 Gflop/s) - 1804 (6756 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 - 0 - 0 - 0   temps: 54 C - 57 C - 57 C - 58 C
        Summary at:   Mon Mar  2 15:10:19 KST 2020

70.0%  proc'd: 3608 (13498 Gflop/s) - 3608 (13518 Gflop/s) - 1804 (6749 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 -70.0%  proc'd: 3608 (13498 Gflop/s) - 3608 (13518 Gflop/s) - 3608 (13413 Gflop/s) - 1804 (6704 Gflop/s)   errors: 0 70.0%  proc'd: 3608 (13498 Gflop/s) - 3608 (13518 Gflop/s) - 3608 (13413 Gflop/s) - 3608 (13033 Gflop/s)   errors: 090.0%  proc'd: 5412 (13432 Gflop/s) - 3608 (13518 Gflop/s) - 3608 (13413 Gflop/s) - 3608 (13033 Gflop/s)   errors: 0 - 0 - 0 - 0   temps: 54 C - 57 C - 57 C - 58 C
        Summary at:   Mon Mar  2 15:10:21 KST 2020

90.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 3608 (13413 Gflop/s) - 3608 (13033 Gflop/s)   errors: 0100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 3608 (13033 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 5412 (13432 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 100.0%  proc'd: 7216 (13407 Gflop/s) - 5412 (13501 Gflop/s) - 5412 (13339 Gflop/s) - 5412 (13037 Gflop/s)   errors: 0 - 0 - 0 - 0   temps: 59 C - 58 C - 58 C - 56 C
Killing processes.. done

Tested 4 GPUs:
        GPU 0: OK
        GPU 1: OK
        GPU 2: OK
        GPU 3: OK

이제, 스트레스 테스트를 진행하려면 진행 시간을 주면된다. 초단위로.
한 시간 동안 테스트진행하려면,

# ./gpu_burn 3600

4. 기타사항
gpu를 확인할 수 있는 툴은 gpustat, gpumonitor, glance 등 여러가지가 있으나, nvidia gpu를 사용하기위한 드라이버와 유틸리티를 설치했다면, nvidia-smi를 즉시 사용할 수 있다.
스트레스 테스트중에 nvidia-smi 명령어를 내리면 아래와 같이 GPU 사용율이 100% 임을 볼 수 있다.

# nvidia-smi
Mon Mar  2 15:22:40 2020
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.33.01    Driver Version: 440.33.01    CUDA Version: 10.2     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  Tesla V100-SXM2...  Off  | 00000000:89:00.0 Off |                    0 |
| N/A   63C    P0   294W / 300W |  29282MiB / 32510MiB |    100%      Default |
+-------------------------------+----------------------+----------------------+
|   1  Tesla V100-SXM2...  Off  | 00000000:8A:00.0 Off |                    0 |
| N/A   73C    P0   298W / 300W |  29282MiB / 32510MiB |    100%      Default |
+-------------------------------+----------------------+----------------------+
|   2  Tesla V100-SXM2...  Off  | 00000000:B2:00.0 Off |                    0 |
| N/A   63C    P0   175W / 300W |  29282MiB / 32510MiB |    100%      Default |
+-------------------------------+----------------------+----------------------+
|   3  Tesla V100-SXM2...  Off  | 00000000:B3:00.0 Off |                    0 |
| N/A   73C    P0   293W / 300W |  29282MiB / 32510MiB |    100%      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0     47138      C   ./gpu_burn                                 29271MiB |
|    1     47164      C   ./gpu_burn                                 29271MiB |
|    2     47165      C   ./gpu_burn                                 29271MiB |
|    3     47166      C   ./gpu_burn                                 29271MiB |
+-----------------------------------------------------------------------------+

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