【转载】 nvidia-smi - Persistence-M (Persistence Mode)

原文链接：

https://blog.csdn.net/chengyq116/article/details/103224622

版权声明：本文为CSDN博主「Yongqiang Cheng」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。

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设置目标 GPUs 的持久模式。有关持久性模式的描述，请参见 (GPU ATTRIBUTES) 部分。需要 root。除非使用 -i 参数指定单个 GPU，否则它将影响所有 GPU。此操作的效果是立竿见影的。但是，它不会在重新启动后持续存在。每次重新启动后，持久性模式将默认为 Disabled。仅在 Linux 上可用。

persistence [pəˈsɪstəns]：n. 持续，固执，存留，坚持不懈，毅力

Persistence-M (Persistence Mode)
persistence mode 持续模式默认关闭。persistence mode 能够让 GPU 更快响应任务，待机功耗增加。关闭 persistence mode 同样能够启动任务。

sudo nvidia-smi -pm 1

Persistence-M 从 Off 变成 On，持续模式打开。

deepnorth@deepnorth-amax:~/software$ nvidia-smi
Tue Jul  9 22:24:29 2019
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 430.14       Driver Version: 430.14       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  GeForce RTX 208...  Off  | 00000000:1B:00.0 Off |                  N/A |
| 32%   48C    P0    66W / 250W |      0MiB / 11019MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   1  GeForce RTX 208...  Off  | 00000000:1C:00.0 Off |                  N/A |
| 34%   49C    P0    60W / 250W |      0MiB / 11019MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   2  GeForce RTX 208...  Off  | 00000000:1D:00.0 Off |                  N/A |
| 34%   49C    P0    63W / 250W |      0MiB / 11019MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   3  GeForce RTX 208...  Off  | 00000000:1E:00.0 Off |                  N/A |
| 33%   49C    P0    54W / 250W |      0MiB / 11019MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   4  GeForce RTX 208...  Off  | 00000000:89:00.0 Off |                  N/A |
| 32%   48C    P0    78W / 250W |      0MiB / 11019MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   5  GeForce RTX 208...  Off  | 00000000:8A:00.0 Off |                  N/A |
| 34%   49C    P0    65W / 250W |      0MiB / 11019MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   6  GeForce RTX 208...  Off  | 00000000:8B:00.0 Off |                  N/A |
| 33%   49C    P0    52W / 250W |      0MiB / 11019MiB |      1%      Default |
+-------------------------------+----------------------+----------------------+
|   7  GeForce RTX 208...  Off  | 00000000:8C:00.0 Off |                  N/A |
| 33%   50C    P0    55W / 250W |      0MiB / 11019MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|  No running processes found                                                 |
+-----------------------------------------------------------------------------+
deepnorth@deepnorth-amax:~/software$

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