> I have sofar used a homogenous 32-bit cluster. > Now i have added a new machine which is 64 bit > > This means i have to reconfigure open MPI with `--enable-heterogeneous`, right?
Not necessarily. If you don't need the 64bit capabilities you could run 32 bit binaries along with a 32 bit version of OpenMPI. At least that approach has worked so far for me. Regards, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech
