can you update me with the mapping or the way to get it from the OS on the Cell.
thanks On Thu, Oct 23, 2008 at 8:08 PM, Mi Yan <mi...@us.ibm.com> wrote: > Lenny, > > Thanks. > I asked the Cell/BE Linux Kernel developer to get the CPU mapping :) The > mapping is fixed in current kernel. > > Mi > [image: Inactive hide details for "Lenny Verkhovsky" > <lenny.verkhov...@gmail.com>]"Lenny Verkhovsky" < > lenny.verkhov...@gmail.com> > > > > *"Lenny Verkhovsky" <lenny.verkhov...@gmail.com>* > Sent by: users-boun...@open-mpi.org > > 10/23/2008 01:52 PM Please respond to > Open MPI Users <us...@open-mpi.org> > > > To > > "Open MPI Users" <us...@open-mpi.org> > cc > > > Subject > > Re: [OMPI users] Working with a CellBlade cluster > According to * > https://svn.open-mpi.org/trac/ompi/milestone/Open%20MPI%201.3*<https://svn.open-mpi.org/trac/ompi/milestone/Open%20MPI%201.3>very > soon, > but you can download trunk version > *http://www.open-mpi.org/svn/*<http://www.open-mpi.org/svn/>and check if it > works for you. > > how can you check mapping CPUs by OS , my cat /proc/cpuinfo shows very > little info > # cat /proc/cpuinfo > processor : 0 > cpu : Cell Broadband Engine, altivec supported > clock : 3200.000000MHz > revision : 48.0 (pvr 0070 3000) > processor : 1 > cpu : Cell Broadband Engine, altivec supported > clock : 3200.000000MHz > revision : 48.0 (pvr 0070 3000) > processor : 2 > cpu : Cell Broadband Engine, altivec supported > clock : 3200.000000MHz > revision : 48.0 (pvr 0070 3000) > processor : 3 > cpu : Cell Broadband Engine, altivec supported > clock : 3200.000000MHz > revision : 48.0 (pvr 0070 3000) > timebase : 26666666 > platform : Cell > machine : CHRP IBM,0793-1RZ > > > > On Thu, Oct 23, 2008 at 3:00 PM, Mi Yan <*mi...@us.ibm.com*<mi...@us.ibm.com>> > wrote: > > Hi, Lenny, > > So rank file map will be supported in OpenMPI 1.3? I'm using > OpenMPI1.2.6 and did not find parameter "rmaps_rank_file_". > Do you have idea when OpenMPI 1.3 will be available? OpenMPI 1.3 has > quite a few features I'm looking for. > > Thanks, > > Mi > [image: Inactive hide details for "Lenny Verkhovsky" > <lenny.verkhov...@gmail.com>]"Lenny Verkhovsky" <* > lenny.verkhov...@gmail.com* <lenny.verkhov...@gmail.com>> > > > > > *"Lenny Verkhovsky" > <**lenny.verkhov...@gmail.com*<lenny.verkhov...@gmail.com> > *>* > Sent by: > *users-boun...@open-mpi.org*<users-boun...@open-mpi.org> > > 10/23/2008 05:48 AM > > Please respond to > Open MPI Users <*us...@open-mpi.org* <us...@open-mpi.org>> > To > > "Open MPI Users" <*us...@open-mpi.org* <us...@open-mpi.org>>cc > Subject > > Re: [OMPI users] Working with a CellBlade cluster > > > Hi, > > > If I understand you correctly the most suitable way to do it is by > paffinity that we have in Open MPI 1.3 and the trank. > how ever usually OS is distributing processes evenly between sockets by > it self. > > There still no formal FAQ due to a multiple reasons but you can read > how to use it in the attached scratch ( there were few name changings of > the > params, so check with ompi_info ) > > shared memory is used between processes that share same machine, and > openib is used between different machines ( hostnames ), no special mca > params are needed. > > Best Regards > Lenny, > > > On Sun, Oct 19, 2008 at 10:32 AM, Gilbert Grosdidier <* > gro...@mail.cern.ch* <gro...@mail.cern.ch>> wrote: > Working with a CellBlade cluster (QS22), the requirement is to have > one > instance of the executable running on each socket of the blade > (there are 2 > sockets). The application is of the 'domain decomposition' type, > and each > instance is required to often send/receive data with both the > remote blades and > the neighbor socket. > > Question is : which specification must be used for the mca btl > component > to force 1) shmem type messages when communicating with this > neighbor socket, > while 2) using openib to communicate with the remote blades ? > Is '-mca btl sm,openib,self' suitable for this ? > > Also, which debug flags could be used to crosscheck that the > messages are > _actually_ going thru the right channel for a given channel, > please ? > > We are currently using OpenMPI 1.2.5 shipped with RHEL5.2 > (ppc64). > Which version do you think is currently the most optimised for > these > processors and problem type ? Should we go towards OpenMPI 1.2.8 > instead ? > Or even try some OpenMPI 1.3 nightly build ? > > Thanks in advance for your help, Gilbert. > > _______________________________________________ > users mailing list* > **us...@open-mpi.org* <us...@open-mpi.org>* > > **http://www.open-mpi.org/mailman/listinfo.cgi/users*<http://www.open-mpi.org/mailman/listinfo.cgi/users> > *(See attached file: RANKS_FAQ.doc)* > _______________________________________________ > > users mailing list* > **us...@open-mpi.org* <us...@open-mpi.org> > > *http://www.open-mpi.org/mailman/listinfo.cgi/users*<http://www.open-mpi.org/mailman/listinfo.cgi/users> > > _______________________________________________ > users mailing list* > **us...@open-mpi.org* <us...@open-mpi.org>* > > **http://www.open-mpi.org/mailman/listinfo.cgi/users*<http://www.open-mpi.org/mailman/listinfo.cgi/users> > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
