Hi Alexey,
I saw that post on the forum yesterday which I also believe is the same problem as I have.
I also noticed that the user compiled VASP using compilers/libraries in an EasyBuild environment.
When you test this on your machine do you also use EasyBuild?
If not then I would suggest that you setup an EasyBuild environment and try to reproduce my results.
Since I am the administrator of our HPC I can provide the necessary files/instructions.
It is anyway a good idea for you guys to have an EasyBuild environment available.
Since EasyBuild is one of the most common (and practical) ways of reliably reproducing installations of scientific software on HPC clusters.
Regarding your suggestions about checking that our HPC is setup for GPUs, since I am the administrator of or HPC I do believe it is setup correctly
and anyhow I tested on a different HPC cluster and was able to reproduce my problem. As I also mentioned VASP 6.2.1 works fine using the same makefile, compilers and libraries. So this is most likely a bug that was introduced in VASP 6.3.
/Daniel