I thought LAM/MPI is being merged into openmpi. I think, Im not sure how the implementations are related. I think lam is just a runtime for which now openmpi delivers some support. If not so, I dont understand. However orte is another runtime right? I thought I can switch between those using something like mpi-selector-menu. I think Im lost. How can I use openmpi to run a distributed system efficiently? I dont want to fall back on old LAM/MPI since I want to be modern :o) Yours, J
-------- Original-Nachricht -------- > Datum: Fri, 7 Mar 2008 13:19:16 -0500 > Von: Jeff Squyres <jsquy...@cisco.com> > An: Open MPI Users <us...@open-mpi.org> > Betreff: Re: [OMPI users] Problem: openmpi using lam > On Mar 7, 2008, at 11:31 AM, Justus Schwabedal wrote: > > > I need advise to get openmpi to work using lam. > > I think you're slightly confused -- LAM/MPI and Open MPI are two > different software projects that implement the same standard (MPI). > This list is for supporting Open MPI. Another list > (http://www.lam-mpi.org/mailman/listinfo.cgi/lam > ) is available for supporting LAM/MPI. You might want to refer to the > "Getting Help" page on the LAM/MPI site > (http://www.lam-mpi.org/using/support/ > ). I suspect that your problem has to do with your hostfile, and you > should check the LAM/MPI user's guide for the answer. > > But be aware that LAM/MPI is in maintenance mode -- it is being > deprecated in favor of Open MPI. See the announcement at the top of > LAM/MPI's home page. > > Good luck. > > > For testing I installed it on two machines running opensuse10.3 > > (both atholon 64) connected via ethernet. I then try to run a test > > script "hello.x" with the following commands: > > jus@cusp:~/Code/Spielwiese/Mpi> make hello > > mpicc hello.c -o hello.x > > jus@cusp:~/Code/Spielwiese/Mpi> lamboot mfile > > > > LAM 7.1.4/MPI 2 C++/ROMIO - Indiana University > > > > Enter passphrase for key '/cusp/jus/.ssh/id_rsa': > > Enter passphrase for key '/cusp/jus/.ssh/id_rsa': > > jus@cusp:~/Code/Spielwiese/Mpi> lamnodes > > n0 cusp:1:origin,this_node > > n1 neutrino.stat.physik.uni-potsdam.de:1: > > jus@cusp:~/Code/Spielwiese/Mpi> mpirun -np 2 hello.x > > Process 0 on cusp out of 2 > > Process 1 on cusp out of 2 > > > > The jobs are thus wrapped only on the node "cusp", not on both. I > > have no clue why this is. > > Thanks, Justus > > -- > > Psst! Geheimtipp: Online Games kostenlos spielen bei den GMX Free > > Games! > > http://games.entertainment.gmx.net/de/entertainment/games/free > > _______________________________________________ > > 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 -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger
