查看显卡驱动: nvidia-smi
报错:
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
查看cuda是否还在: nvcc -V
nvcc: NVIDIA (R) Cuda compiler driver Copyright (c) 2005-2020 NVIDIA Corporation Built on Thu_Jun_11_22:26:38_PDT_2020 Cuda compilation tools, release 11.0, V11.0.194 Build cuda_11.0_bu.TC445_37.28540450_0
查看nvidia版本: ls /usr/src | grep nvidia
nvidia-450.80.02
执行命令
sudo apt install dkms sudo dkms install -m nvidia -v 450.80.02
再执行: nvidia-smi
Mon Jan 25 18:28:31 2021
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 450.80.02 Driver Version: 450.80.02 CUDA Version: 11.0 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 GeForce RTX 206... Off | 00000000:07:00.0 Off | N/A |
| 46% 21C P0 23W / 175W | 0MiB / 7974MiB | 0% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| No running processes found |
+-----------------------------------------------------------------------------+