hello all, I am just trying to get started with OpenMPI (version 1.1) on Linux.
When I try to run a simple MPI - "Hello World" program, here is what i get: amit@ubuntu-desktop-1:~/junk/mpi-codes$ mpirun -np 1 --hostfile mpi-host-file ./a.out libibverbs: Fatal: couldn't read uverbs ABI version. -------------------------------------------------------------------------- [0,1,0]: OpenIB on host ubuntu-desktop-1 was unable to find any HCAs. Another transport will be used instead, although this may result in lower performance. -------------------------------------------------------------------------- Processor 0 of 1: Hello World! Please explain the statements above. Also, when I am trying to launch the above process on 2 processors, instead of one, it gives me: Failed to find or execute the following executable: Host: ubuntu-desktop-2 Executable: ./a.out Cannot continue. Does that mean I have to place a copy of the executable on the other node as well? Where should I place the executable? Thanks in advance. Regards -- Amit Kumar Saha [URL]:http://amitsaha.in.googlepages.com
