> 1) I was told to add "-mca mpi_leave_pinned 0" to avoid problems with
> Infinband. This was with OpenMPI 1.3.1. Not
Actually for 1.2.X version I will recommend you to enable leave pinned
"-mca mpi_leave_pinned 1"
> sure if the problems were fixed on 1.3.2, but I am hanging on to that
> setting just in case.
We had data corruption issue in 1.3.1 but it was resolved in 1.3.2. In
1.3.2 version leave_pinned is enabled by default.
If I remember correct mvapich enables affinity mode by default, so I can
recommend you to try to enable it too:
"--mca mpi_paffinity_alone 1". For more details please check FAQ -