Sadly, OS X does not provide an API for processor affinity. :-( On Jul 15, 2011, at 5:03 PM, Karl Dockendorf wrote:
> Hi, > > I just upgraded from the default ompi install on OS X 10.6 to v1.5.3 > so that I can use the processor affinity options. However there seems > to be some trouble. My mpi application executes perfectly with the > following CL statement: > /usr/local/openmpi-1.5.3/bin/mpiexec --host `hostname` --np 2 > *APPLICATIONANDARGS* > but this fails: > /usr/local/openmpi-1.5.3/bin/mpiexec --host `hostname` --np 2 > --cpus-per-proc 2 *APPLICATIONANDARGS* > saying: > -------------------------------------------------------------------------- > An attempt to set processor affinity has failed - please check to > ensure that your system supports such functionality. If so, then > this is probably something that should be reported to the OMPI developers. > -------------------------------------------------------------------------- > -------------------------------------------------------------------------- > mpiexec was unable to start the specified application as it > encountered an error: > > Error name: No such file or directory > Node: hrle03274.<BASEURLNAME DELETED> > > when attempting to start process rank 0. > -------------------------------------------------------------------------- > 2 total processes failed to start > > this also fails: > /usr/local/openmpi-1.5.3/bin/mpiexec --host `hostname` --np 2 > --bind-to-core *APPLICATIONANDARGS* > saying the exact same thing. > > I configured the install with: > ./configure --with-hwloc=internal --prefix=/usr/local/openmpi-1.5.3/ > > any help in getting this working would be greatly appreciated as the > process jumping from core to core is killing my system responsiveness. > > Thanks, > Karl > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
