[Linuxppc-users] nvidia-smi displaying V100-SXM2 GPU memory as 15360MiB as opposed to 16152MiB

[Franck Barillaud]

>From a customer:

nvidia-smi is showing the 4 V100-SXM2 cards, but the memory is displaying 
at 15360MiB as opposed to 16152MiB that I get from the same cards on 
Amazon. Is this a known thing, or maybe some oddity with newer drivers or 
something? 

On minsky system: 

[root at mnode3-6 PyTorch]# nvidia-smi
Thu May 10 14:35:25 2018 
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 384.81                 Driver Version: 384.81    |
|-------------------------------+----------------------+----------------------+
| 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 P100-SXM2...  Off  | 00000002:01:00.0 Off |  0 |
| N/A   30C    P0    35W / 300W |      0MiB / 16276MiB |      0% Default |
+-------------------------------+----------------------+----------------------+
|   1  Tesla P100-SXM2...  Off  | 00000006:01:00.0 Off |  0 |
| N/A   30C    P0    32W / 300W |      0MiB / 16276MiB |      0% Default |
+-------------------------------+----------------------+----------------------+
  
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU 
Memory |
|  GPU       PID   Type   Process name                             Usage   
|
|=============================================================================|
|  No running processes found    |
+-----------------------------------------------------------------------------+

what could cause the difference ?

Regards,
Franck Barillaud
STSM, CTO ISV Power Cloud Infrastructure
Master Inventor
Ext Phone: (512) 286-5242    Tie Line: 363-5242
e-mail: fbarilla at us.ibm.com


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