ohh.. you are right, false alarm :) sorry siblings != cores - so it is HT On Wed, May 30, 2012 at 4:36 PM, Brice Goglin <brice.gog...@inria.fr> wrote:
> 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> 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> 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 >>> For corporate legal information go to: >>> http://www.cisco.com/web/about/doing_business/legal/cri/ >>> >>> >>> _______________________________________________ >>> devel mailing list >>> de...@open-mpi.org >>> http://www.open-mpi.org/mailman/listinfo.cgi/devel >>> >> >> <lstopo-out.tbz>_______________________________________________ >> >> devel mailing list >> 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 >> > > > > _______________________________________________ > devel mailing > listdevel@open-mpi.orghttp://www.open-mpi.org/mailman/listinfo.cgi/devel > > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel >
