Because only the devel package includes the necessary pieces to set memory affinity.
On Tue, Aug 11, 2015 at 9:37 AM, Dave Love <d.l...@liverpool.ac.uk> wrote: > Ralph Castain <r...@open-mpi.org> writes: > > > Hi Bill > > > > You need numactl-devel on the nodes. Not having them means we cannot > ensure > > memory is bound local to the procs, which will hurt performance but not > > much else. There is an MCA param to turn off the warnings if you choose > not > > to install the libs: hwloc_base_mem_bind_failure_action=silent > > Why should you need the -devel package on the compute nodes? (It only > contains the .h and .so files.) The RHEL and Fedora packages don't > require it and work. > > [For an up-to-date OMPI, you can rebuild the package against the current > tarball, at least after the chaos caused by RHEL 6.6 updating > incompatibly to 1.8. Otherwise use the Fedora packaging, which is kept > quite current.] > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/08/27427.php >
