How to check for GPU on CentOS Linux

Question

It is suggested that on Linux, GPU be found with the command lspci | grep VGA. It works fine on Ubuntu but when I try to use the same on CentOS, it says lspci command is not found. How can I check for the GPU card on CentOS. And note that I'm not the administrator of the machine and I only use it remotely from command line. I intend to use the GPU as a GPGPU on that machine, but first I need to check if it even has one.

Answer 1

Try lshw or lspci. They have to be installed if you don't have already.

Install lshw

sudo yum install lshw //CentOS
sudo apt-get install lshw // Ubuntu

Then run this

sudo lshw -C display

The output would look like this

 *-display
       description: VGA compatible controller
       product: GP102 [GeForce GTX 1080 Ti]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:0b:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:95 memory:fb000000-fbffffff memory:e0000000-efffffff memory:de000000-dfffffff ioport:5000(size=128) memory:faf00000-faf7ffff

Similarly, you can try lspci

lspci | grep VGA

The output would look like this

0b:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)

Answer 2

This assumes you have proprietary drivers installed, but issue the following command...

nvidia-smi

The output should look similar to this:

Mon Dec 23 10:50:28 2013       
+------------------------------------------------------+                       
| NVIDIA-SMI 331.20     Driver Version: 331.20         |                       
|-------------------------------+----------------------+----------------------+
| 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 GTX 660     Off  | 0000:01:00.0     N/A |                  N/A |
| 10%   38C  N/A     N/A /  N/A |     97MiB /  2047MiB |     N/A      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Compute processes:                                               GPU Memory |
|  GPU       PID  Process name                                     Usage      |
|=============================================================================|
|    0            Not Supported                                               |
+-----------------------------------------------------------------------------+