On 11/30/23 10:24, Yin-Ying Ting wrote:
Could you please provide guidance on resolving the oversubscription
issue?
if your job runs on 4 GPUs while pretending to run on one, there is no
real issue: just ignore the message. If you instruct your job to run on
4 GPUs but it doesn't, you should report it to your system administrator.
Paolo
Kind regards,
Yin-Ying Ting
On 29.11.23 15:53, Paolo Giannozzi wrote:
On 11/27/23 11:32, Yin-Ying Ting wrote:
Based on the *environment.f90* file, this message is triggered when
/nproc > ndev * nnode * 2/. If I understand correctly, I have nproc
(Number of parallel processe)=4, ndev(Number of GPU Devices per Node)
=4 and nnode (Number of Nodes)=1. This condition seems to be false (4
> 8). Despite this, the message still appears. All 4 GPUs were active
during the run.
funny. Even funnier, the number of GPUs actually used does not seem to
be written anywhere on output.
Add a line printing nproc, ndev, nnode just before the warning is
issued, recompile and re-run. One (at least) of those numbers is not
what you expect. Computers are not among the most reliable machines,
but they should be able to find out who is larger between 4 and 8
Paolo
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