[MITgcm-support] MPI issues

[Renske Gelderloos]

Hi,

I've just downloaded the MITgcm onto a (for me) new platform. Compilation did not give any big issues, but at runtime it immediately crashes with the following error:

[ln154:28821] *** An error occurred in MPI_Comm_rank
[ln154:28821] *** on communicator MPI_COMM_WORLD
[ln154:28821] *** MPI_ERR_COMM: invalid communicator
[ln154:28821] *** MPI_ERRORS_ARE_FATAL (your MPI job will now abort)
--------------------------------------------------------------------------
mpirun has exited due to process rank 101 with PID 28826 on
node ln154 exiting without calling "finalize". This may
have caused other processes in the application to be
terminated by signals sent by mpirun (as reported here).
--------------------------------------------------------------------------
[ln318:28272] 38 more processes have sent help message help-mpi-errors.txt / mpi_errors_are_fatal
[ln318:28272] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages


I have not seen this before, nor do I really know where to start debugging. Any ideas?

Renske

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