I've been using --mca mpi_paffinity_alone 1 in all simulations. Concerning "-mca mpi_leave_pinned 1", I tried it with openmpi 1.2.X versions and it makes no difference.
Best regards Roman On Mon, May 18, 2009 at 4:57 PM, Pavel Shamis (Pasha) <pash...@gmail.com> wrote: > >> >> 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 - > http://www.open-mpi.org/faq/?category=tuning#using-paffinity > > Thanks, > Pasha. > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
