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Hi,

The output of nvidia-smi shows that about 2GB per GPU is used, which was the same for me.

At this point it is difficult to investigate further since I can not reproduce your problem. Nevertheless, a suggestion would be to use a more recent version of the nvidia compiler. You use 21.9, while in our case it is 22.2. Maybe you could ask the technician to upgrade to 22.2.

Hello,

Thanks a lot for the suggestion. I will ask our technician to see whether it improves the situation and I will update this post if it works.

By the way, I think there is a very similar issue in the forum(forum/viewtopic.php?f=3&t=18493) and the problem was not resolved. Therefore, probably it is not a rare issue. In that case, it seems, on your side, you also couldn't reproduce the issue.

Thank you again for all the help in the past few days. I really appreciate your kind help.

Best,
Xiliang

More users are reporting a similar issue:
https://www.vasp.at/forum/viewtopic.php?f=3&t=18493 (that you pointed out in the previous post)
https://www.vasp.at/forum/viewtopic.php?f=4&t=18736
https://www.vasp.at/forum/viewtopic.php?f=3&t=18739

We believe these issues might have to do with a memory leak when compiling VASP with OpenMP support using the NV compiler (see recently added entry in https://www.vasp.at/wiki/index.php/Known_issues).
Maybe you can try compiling the code without OpenMP and check if the issue persists.

Thanks a lot for the suggestion. We will have a look at this later.