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
Ralph On Tue, Aug 4, 2015 at 10:36 PM, Lane, William <william.l...@cshs.org> wrote: > I'm running OpenMPI 1.8.7 tests on a mixed bag cluster of various systems > under CentOS 6.3, I've been intermittently getting warnings about not > having > the proper NUMA libraries installed. Which NUMA libraries should be > installed > for CentOS 6.3 and OpenMPI 1.8.7? > > Here's what I currently have installed: > > yum list installed *numa* > numactl.x86_64 > > Here's the list of available NUMA libraries for CentOS 6.3: > > listed via: yum search numa | less > numactl-devel.i686 : Development package for building Applications > that use numa > numactl-devel.x86_64 : Development package for building Applications > that use > : numa > numad.x86_64 : NUMA user daemon > numactl.i686 : Library for tuning for Non Uniform Memory Access > machines > numactl.x86_64 : Library for tuning for Non Uniform Memory Access > machines > > Also, since this cluster actually has working NUMA nodes, could the lack > of the proper NUMA libraries being installed cause any issues? > > -Bill L. > IMPORTANT WARNING: This message is intended for the use of the person or > entity to which it is addressed and may contain information that is > privileged and confidential, the disclosure of which is governed by > applicable law. If the reader of this message is not the intended > recipient, or the employee or agent responsible for delivering it to the > intended recipient, you are hereby notified that any dissemination, > distribution or copying of this information is strictly prohibited. Thank > you for your cooperation. > > _______________________________________________ > 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/2015/08/27394.php >
