Thank you Ricardo for your answer. Actually, I use only local nodes for this test.
And on this node, I have : $mpirun --version mpirun (Open MPI) 1.4.3 I keep on searching... Pierre -----Message d'origine----- De : users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] De la part de Ricardo Reis Envoyé : vendredi 17 décembre 2010 11:03 À : Open MPI Users Objet : Re: [OMPI users] [SPAM:### 89%] OpenMPI LAM ? On Fri, 17 Dec 2010, GUBERNATIS Pierre 164999 wrote: > Hello, > > I am new at Openmpi : I used Lam so far and we have just installed OpenMpi. > > When I run "mpirun -app schema" , OpenMpi complains about a missing daemon > lamd, whereas the documentations says there is no need to run lamboot anymore. > > > > To make sure : > > > > $ which mpirun > > /export/opt/OPEN-MPI/1.4.3/bin/mpirun Are you shure your enviroment is the same on all nodes? You say you're running on a cluster, can you do `which mpirun` in the submit script, just before running mpirun and is the result the same? What happens if you do `mpirun --version` in the said script (or node)? (what I intend to say is how are you sure that is not lam mpirun that is being called in that particular node?) best, Ricardo Reis 'Non Serviam' PhD candidate @ Lasef Computational Fluid Dynamics, High Performance Computing, Turbulence http://www.lasef.ist.utl.pt Cultural Instigator @ Rádio Zero http://www.radiozero.pt http://www.flickr.com/photos/rreis/ contacts: gtalk: kyriu...@gmail.com skype: kyriusan < sent with alpine 2.00 >