Your /proc/cpuinfo output (filtered below) looks like only two sockets (physical ids 0 and 1), with one core each (cpu cores=1, core id=0), with hyperthreading (siblings=2). So lstopo looks good. E5-2650 is supposed to have 8 cores. I assume you use Linux cgroups/cpusets to restrict the available cores. The missconfiguration may be there. Brice
Le 30/05/2012 15:14, Mike Dubman a écrit : > or, lstopo lies (Im not using the latest hwloc but one which comes > with distro). > The machine has two dual-code sockets, total 4 physical cores: > processor : 0 > physical id : 0 > siblings : 2 > core id : 0 > cpu cores : 1 > > processor : 1 > physical id : 1 > siblings : 2 > core id : 0 > cpu cores : 1 > > processor : 2 > physical id : 0 > siblings : 2 > core id : 0 > cpu cores : 1 > > processor : 3 > physical id : 1 > siblings : 2 > core id : 0 > cpu cores : 1 > > > > On Wed, May 30, 2012 at 3:40 PM, Ralph Castain <r...@open-mpi.org > <mailto:r...@open-mpi.org>> wrote: > > Hmmm...well, from what I see, mpirun was actually giving you the > right answer! I only see TWO cores on each node, yet you told it > to bind FOUR processes on each node, each proc to be bound to a > unique core. > > The error message was correct - there are not enough cores on > those nodes to do what you requested. > > > On May 30, 2012, at 6:19 AM, Mike Dubman wrote: > >> attached. >> >> On Wed, May 30, 2012 at 2:32 PM, Jeff Squyres <jsquy...@cisco.com >> <mailto:jsquy...@cisco.com>> wrote: >> >> On May 30, 2012, at 7:20 AM, Jeff Squyres wrote: >> >> >> $hwloc-ls --of console >> >> Machine (32GB) >> >> NUMANode L#0 (P#0 16GB) + Socket L#0 + L3 L#0 (20MB) + L2 >> L#0 (256KB) + L1 L#0 (32KB) + Core L#0 >> >> PU L#0 (P#0) >> >> PU L#1 (P#2) >> >> NUMANode L#1 (P#1 16GB) + Socket L#1 + L3 L#1 (20MB) + L2 >> L#1 (256KB) + L1 L#1 (32KB) + Core L#1 >> >> PU L#2 (P#1) >> >> PU L#3 (P#3) >> > >> > Is this hwloc output exactly the same on both nodes? >> >> >> More specifically, can you send the lstopo xml output from >> each of the 2 nodes you ran on? >> >> -- >> Jeff Squyres >> jsquy...@cisco.com <mailto:jsquy...@cisco.com> >> For corporate legal information go to: >> http://www.cisco.com/web/about/doing_business/legal/cri/ >> >> >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org <mailto:de...@open-mpi.org> >> http://www.open-mpi.org/mailman/listinfo.cgi/devel >> >> >> <lstopo-out.tbz>_______________________________________________ >> >> devel mailing list >> de...@open-mpi.org <mailto:de...@open-mpi.org> >> http://www.open-mpi.org/mailman/listinfo.cgi/devel > > > _______________________________________________ > devel mailing list > de...@open-mpi.org <mailto:de...@open-mpi.org> > http://www.open-mpi.org/mailman/listinfo.cgi/devel > > > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel
