comm spawn issues

[jeffhammond]

1. It only works with Open-MPI as the default SO. MPI_LIB is ignored by spawned processes and thus things don't work.

2. This:

mpirun.openmpi --oversubscribe -n 1    ./spawninfo1
.--------------------------------------------------------------------------
Unexpected output in spawninfo1: --------------------------------------------------------------------------
mpirun.openmpi was unable to find the specified executable file, and therefore
Unexpected output in spawninfo1: mpirun.openmpi was unable to find the specified executable file, and therefore
did not launch the job.  This error was first reported for process
Unexpected output in spawninfo1: did not launch the job.  This error was first reported for process
rank 0; it may have occurred for other processes as well.
Unexpected output in spawninfo1: rank 0; it may have occurred for other processes as well.

3. This:

mpirun.openmpi --oversubscribe -n 2    ./spaiccreate
.[nuclear:4044987] *** An error occurred in MPI_Intercomm_create
Unexpected output in spaiccreate: [nuclear:4044987] *** An error occurred in MPI_Intercomm_create
[nuclear:4044987] *** reported by process [1230700545,0]
Unexpected output in spaiccreate: [nuclear:4044987] *** reported by process [1230700545,0]
[nuclear:4044987] *** on communicator MPI_COMM_WORLD
Unexpected output in spaiccreate: [nuclear:4044987] *** on communicator MPI_COMM_WORLD
[nuclear:4044987] *** MPI_ERR_COMM: invalid communicator
Unexpected output in spaiccreate: [nuclear:4044987] *** MPI_ERR_COMM: invalid communicator
[nuclear:4044987] *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort,
Unexpected output in spaiccreate: [nuclear:4044987] *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort,
[nuclear:4044987] ***    and potentially your MPI job)
Unexpected output in spaiccreate: [nuclear:4044987] ***    and potentially your MPI job)
[nuclear:4044982] 1 more process has sent help message help-mpi-errors.txt / mpi_errors_are_fatal
Unexpected output in spaiccreate: [nuclear:4044982] 1 more process has sent help message help-mpi-errors.txt / mpi_errors_are_fatal
[nuclear:4044982] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
Unexpected output in spaiccreate: [nuclear:4044982] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
Program spaiccreate exited without No Errors

[jeffhammond]

spawninfo1 is related to the working directory in info.