On Mar 21, 2011, at 9:27 PM, Eugene Loh wrote: > Gustavo Correa wrote: > >> Dear OpenMPI Pros >> >> Is there an MCA parameter that would do the same as the mpiexec switch >> '-bind-to-core'? >> I.e., something that I could set up not in the mpiexec command line, >> but for the whole cluster, or for an user, etc. >> >> In the past I used '-mca mpi mpi_paffinity_alone=1'.
Must be a typo here - the correct command is '-mca mpi_paffinity_alone 1' >> But that was before '-bind-to-core' came along. >> However, my recollection of some recent discussions here in the list >> is that the latter would not do the same as '-bind-to-core', >> and that the recommendation was to use '-bind-to-core' in the mpiexec >> command line. Just to be clear: mpi_paffinity_alone=1 still works and will cause the same behavior as bind-to-core. >> > A little awkward, but how about > > --bycore rmaps_base_schedule_policy core > --bysocket rmaps_base_schedule_policy socket > --bind-to-core orte_process_binding core > --bind-to-socket orte_process_binding socket > --bind-to-none orte_process_binding none > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
