Send/recv buff alias problem

Open haykh opened this issue 1 year ago • 3 comments

This was less of a bug, and more of an unsafe code which was explicitly disallowed by MPICH (but not OpenMPI). Should be fixed now.

Per MPI standard

Jul 29 '24 13:07 haykh

@LudwigBoess if you have time, could you test that this patch works?

Jul 29 '24 14:07 haykh

Sorry for the late reply, the queue time on the machine I have access to are a nightmare. I was able to test the MPI on CPU and can't reproduce the issue with this version. The GPU MPI run has been in the queue for 5 days, so I can't test it.

Anyway I think we can consider the bug to be fixed!

Aug 03 '24 07:08 LudwigBoess

@LudwigBoess no worries, let me know if it still persists, there is no rush about merging this.

Aug 07 '24 19:08 haykh