Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: Re: [OMPI devel] OpenMPI, PLPA and Linux cpuset/cgroup support
From: Chris Samuel (csamuel_at_[hidden])
Date: 2009-07-18 23:04:13

----- "Ralph Castain" <rhc_at_[hidden]> wrote:

> Looking at your command line, did you remember to set -mca
> mpi_paffinity_alone 1? If not, we won't set affinity on the
> processes.

Just realised that in the failed test I posted I set
-mca mpi_affinity_alone 1 *instead* of -mca paffinity linux,
rather than as well as.

Would that result in PLPA not being used ?

Is there a debugging switch to get mpiexec to show what
MCA modules are being loaded/used at runtime ?


Christopher Samuel - (03) 9925 4751 - Systems Manager
 The Victorian Partnership for Advanced Computing
 P.O. Box 201, Carlton South, VIC 3053, Australia
VPAC is a not-for-profit Registered Research Agency