All, I've run across a somewhat difficult code for OpenMPI to handle (CPMD).
Here is the report on the versions I tried: 1.1.4 - mostly does not start 1.1.5 - works 1.2.3 - does not start The machine has dual Opterons, with Gigabit. The running command with 4x2 cpus is: mpirun -np $np -machinefile $PBS_NODEFILE \ -mca coll self,basic,tuned -mca \ mpi_paffinity_alone 1 -mca coll_basic_crossover 4 \ $HOME/cpmd/cpmd.x_o $1 >> $2 Now, onto specific errors. 1.1.4 : occasionally starts, occasionally gives the error: PML add procs failed --> Returned "Error" (-1) instead of "Success" (0) -------------------------------------------------------------------------- *** An error occurred in MPI_Init *** before MPI was initialized *** MPI_ERRORS_ARE_FATAL (goodbye) 1.1.5 : works fine 1.2.3 : [node041:04866] pls:tm: failed to poll for a spawned proc, return status = 17002 [node041:04866] [0,0,0] ORTE_ERROR_LOG: In errno in file rmgr_urm.c at line 462 [node041:04866] mpirun: spawn failed with errno=-11 Kostya ____________________________________________________________________________________ Building a website is a piece of cake. Yahoo! Small Business gives you all the tools to get online. http://smallbusiness.yahoo.com/webhosting