Jeff, Okay, thanks. I'll give it a shot and report back. I can't contribute any code, but I can certainly do testing...
On Thu, Jul 2, 2009 at 9:23 AM, Jeff Squyres<jsquy...@cisco.com> wrote: > I see ompi/mca/btl/elan in the OMPI SVN development trunk and in the 1.3 > tree (where elan = the quadrics interface). > > So actually, looking at the 1.3.x README, I see configure switches like > "--with-elan" that specifies where the Elan (Quadrics) headers and libraries > live. I have no Quadrics networks and didn't pay attention to this > development at all (obviously ;-) ) -- you might want to give it a shot and > see how well it performs. Meaning: I'm sure it works or UT wouldn't have > pushed this stuff upstream, but I have no idea how well tuned it is. > > If you build OMPI properly, you should be able to tell if Quadrics support > is included via > > ompi_info | grep elan > > You should see a BTL line for elan (i.e., a BTL plugin for "elan" is > installed and functional). Although OMPI should automatically pick elan for > MPI communications, you can force OMPI to pick it via: > > mpirun --mca btl elan,self ... > > Quadrics networks should also qualify for Open MPI's "other" type of network > support (the MTL, instead of the BTL). MTL level support can typically give > slightly better performance on some types of networks, but it doesn't look > like anyone did any work in this area. Contributions are always welcome, of > course! :-) > > > > On Jul 2, 2009, at 9:12 AM, Michael Di Domenico wrote: > >> Jeff, >> >> Thanks, honestly though if the patches haven't been pulled mainline, >> we are not likely to bring it internally. I was hoping that quadrics >> support was mainline, but the documentation was out of date. >> >> On Thu, Jul 2, 2009 at 8:08 AM, Jeff Squyres<jsquy...@cisco.com> wrote: >> > George -- >> > >> > I know that U. Tennessee did some work in this area; did it ever >> > materialize? >> > >> > >> > On Jul 1, 2009, at 4:49 PM, Michael Di Domenico wrote: >> > >> >> Did the quadrics support for OpenMPI ever materialize? I can't find >> >> any documentation on the web about it and the few mailing list >> >> messages I came across showed some hints that it might be in progress >> >> but that was way back in 2007 >> >> >> >> Thanks >> >> _______________________________________________ >> >> users mailing list >> >> us...@open-mpi.org >> >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> >> >> > >> > >> > -- >> > Jeff Squyres >> > Cisco Systems >> > >> > _______________________________________________ >> > 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 >> > > > -- > Jeff Squyres > Cisco Systems > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
