> Additional note on the the BLACS vs. OpenMPI 1.1.1 & 1.3 problems: > > The BLACS install program xtc_CsameF77 says to not use -DCsameF77 > with OpenMPI; however, because of an oversight I used it in my first > tests -- for OpenMPI 1.1.1 the errors are the same with and without > this setting; however, without it the tester program is very slow > with OpenMPI 1.1.1 or hangs at "RUNNING REPEATABLE SUM TEST" near the > end. OpenMPI 1.1.2rc1 behaved nearly identically. > > With regards to OpenMPI 1.3, not using -DCsameF77 (that is setting > TRANSCOMM blank), prevents the crash I observed earlier; however, > massive errors begin at the "DOUBLE COMPLEX AMX" tests and then the > auxiliary tests at the end are very slow or hangs at "RUNNING > REPEATABLE SUM TEST".
The TRANSCOMM setting that we are using here and that I think is the correct one is "-DUseMpi2" since OpenMPI implements the corresponding mpi2 calls. You need a recent version of BLACS for this setting to be available (1.1 with patch 3 should be fine). Together with the patch to openmpi1.1.1 from ticket 356 we are passing the blacs tester for 4 processors. I didn't have to time to test with other numbers though. Harald Forbert
