You can avoid the "library confusion problem" by building 64 bit and 32 bit version of openMPI in two different directories and then use mpi-selector (on your head and compute nodes) to switch between the two.
Just my $0.02 Jim -----Original Message----- From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Jeff Squyres Sent: Friday, July 24, 2009 7:22 AM To: Open MPI Users Subject: Re: [OMPI users] Open MPI:Problem with 64-bit openMPIandintel compiler On Jul 23, 2009, at 11:14 PM, Ralph Castain wrote: > 3. get a multi-node allocation and run "pbsdsh echo $LD_LIBRARY_PATH" > and see what libs you are defaulting to on the other nodes. > Be careful with this one; you want to ensure that your local shell doesn't expand $LD_LIBRARY_PATH and simply display the same value on all nodes. It might be easiest to write a 2 line script and run that: $ cat myscript #!/bin/sh echo LD_LIB_PATH on `hostname` is: $LD_LIBRARY_PATH $ chmod +x myscript $ pdsh myscript -- Jeff Squyres jsquy...@cisco.com _______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users