我知道nvidia-smi -l 1
会每秒钟给出GPU使用率(类似于以下内容)。不过,我希望能解释一下Volatile GPU-Util
的真正含义。这是使用SMs总数超过总SM,或占用,或其他?nvidia-smi易失性GPU-利用率解释?
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 367.48 Driver Version: 367.48 |
|-------------------------------+----------------------+----------------------+
| 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 K20c Off | 0000:03:00.0 Off | 0 |
| 30% 41C P0 53W/225W | 0MiB/4742MiB | 96% Default |
+-------------------------------+----------------------+----------------------+
| 1 Tesla K20c Off | 0000:43:00.0 Off | 0 |
| 36% 49C P0 95W/225W | 4516MiB/4742MiB | 63% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 1 5193 C python 4514MiB |
+-----------------------------------------------------------------------------+
对于那些想知道,SM指流式多处理器,并且它说明[这里](https://stackoverflow.com/questions/3519598/streaming-multiprocessors-blocks-and-threads-cuda) – Davidmh