[gpaw-users] mpi-problem

[Torsten Hahn]

Dear all,

using GPAW with "small" jobs in parallel works fine, but running "heavy" jobs always cause the following error:

=========
[node123:1404] *** An error occurred in MPI_Wait
[node123:1404] *** on communicator MPI COMMUNICATOR 3 CREATE FROM 0
[node123:1404] *** MPI_ERR_TRUNCATE: message truncated
[node123:1404] *** MPI_ERRORS_ARE_FATAL (your MPI job will now abort)
--------------------------------------------------------------------------
mpirun has exited due to process rank 24 with PID 1395 on
node node123.cm.cluster exiting without calling "finalize". This may
have caused other processes in the application to be
terminated by signals sent by mpirun (as reported here).
--------------------------------------------------------------------------
=========

There is always an MPI_ERR_TRUNCATE event. I tried with intel-mpi as well as open mpi. Does anybody know where this kind of error might come from?

All the best,
Torsten.