Re: [OMPI users] Compiling OpenMPI 1.7.x with core afinity

2013-10-21 Thread Jeff Squyres (jsquyres)
On Oct 21, 2013, at 12:25 PM, Patrick Begou wrote: > kareline (front-end) is a R720XD and the nodes are C6100 sleds from DELL. All > is running with Rocks-Cluster (based on RHEL6). Are these AMD- or Intel-based systems? (I don't follow the model/series of non-Cisco servers, sorry...) > The

Re: [OMPI users] Compiling OpenMPI 1.7.x with core afinity

2013-10-21 Thread Patrick Begou
Jeff Squyres (jsquyres) wrote: Can you manually install a recent version of hwloc (http://www.open-mpi.org/projects/hwloc/) on kareline, and run lstopo on it? Send the output here. What kind of machine is kareline? On Oct 21, 2013, at 11:09 AM, Patrick Begou kareline (front-end) is a R720

Re: [OMPI users] Compiling OpenMPI 1.7.x with core afinity

2013-10-21 Thread Jeff Squyres (jsquyres)
Can you manually install a recent version of hwloc (http://www.open-mpi.org/projects/hwloc/) on kareline, and run lstopo on it? Send the output here. What kind of machine is kareline? On Oct 21, 2013, at 11:09 AM, Patrick Begou wrote: > Thanks Ralph for this answer. May be I wasn't very cl

Re: [OMPI users] Compiling OpenMPI 1.7.x with core afinity

2013-10-21 Thread Patrick Begou
Thanks Ralph for this answer. May be I wasn't very clear (my English is not so good...) I do not want the binding-to-core be the default. For hybrid codes (OpenMP + MPI) I need a bind to the socket. But at this time, I am unable to request a --bind-to-core option: [begou@kareline OARTEST]$

Re: [OMPI users] Compiling OpenMPI 1.7.x with core afinity

2013-10-21 Thread Ralph Castain
We never set binding "on" by default, and there is no configure option that will do so. Never has been, to my knowledge. If you truly want it to bind by default, then you need to add that directive to your default MCA param file: /etc/openmpi-mca-params.conf On Oct 21, 2013, at 3:17 AM, Patri

[OMPI users] Compiling OpenMPI 1.7.x with core afinity

2013-10-21 Thread Patrick Begou
I am compiling OpenMPI 1.7.3 and 1.7.2 with GCC 4.8.1 but I'm unable to activate some binding policy at compile time. ompi_info -a shows: MCA hwloc: parameter "hwloc_base_binding_policy" (current value: "", data source: default, level: 9 dev/all, type: string) Policy f