Category "openmpi"

MPI_alltoallw working and MPI_Ialltoallw failing

I am trying to implement non-blocking communications in a large code. However, the code tends to fail for such cases. I have reproduced the error below. When ru

Update MPI to the newest version

I'd like to upgrade my MPI to the newest stable one, that is the version 2.0.1. Before tring on my own I checked if something useful is on the Open MPI site. Th