You might want to try something simpler than java to start with. For example:
mpirun -np 4 hostname (where hostname is the POSIX command line app, not an MPI app) You should see the hostnames from the first 4 hosts in your hostfile (assuming each one of them has 1 process slot). Then try running the samples that are in the examples/ directory in the Open MPI tarball (make sure that the example executables are available in the same location on every node). For example: cd examples make mpirun -np 4 hello_c That's a trivial C MPI application that is the MPI equivalent of "hello world". On Jan 5, 2010, at 11:18 AM, Leonardo Machado Moreira wrote: > Hi, I have created a cluster with openmpi this way. > > 1 - Configured SSH with authorized_keys from the server to the nodes. > 2 - In /etc/openmpi-default-hostfile\ I have typed the IP of every nodes and > the server. > 3 - Afterward I have created a Java application of two threads just to type a > text on the console and runned it by > mpirun -1 java javaprogram > or > mpirun -2 java javaprogram > It is on the ps -aux of the server but the nodes are still stoped. > > How can I know that my mpi is working > > Thanks a lot > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com
