Something is preventing all cores from appearing. The BIOS? My E5-2650 processors definitely have 8 cores (without counting hyperthreads) as advertised by Intel.
Brice Le 30/05/2012 19:58, Mike Dubman a écrit : > no cgroups or cpusets. > > On Wed, May 30, 2012 at 4:59 PM, Jeff Squyres <jsquy...@cisco.com > <mailto:jsquy...@cisco.com>> wrote: > > On May 30, 2012, at 9:47 AM, Mike Dubman wrote: > > > ohh.. you are right, false alarm :) sorry siblings != cores - so > it is HT > > OMPI 1.6.soon-to-be-1 should handle HT properly, meaning that it > will bind to all the HT's in a core and/or socket. > > Are you using Linux cgroups/cpusets to restrict available cores? > Because Brice is saying that E5-2650 is supposed to have more cores. > > > > On Wed, May 30, 2012 at 4:36 PM, Brice Goglin > <brice.gog...@inria.fr <mailto: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 <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 <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 <mailto:de...@open-mpi.org> > > http://www.open-mpi.org/mailman/listinfo.cgi/devel > > > -- > 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 > > > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel
