Hello,
We have an error like this:
[cli_0]: aborting job:
Fatal error in MPI_Allreduce: Message truncated, error stack:
MPI_Allreduce(984)................: MPI_Allreduce(sbuf=0x7fff3de513c0, rbuf=0x1512ce0, count=2, MPI_INTEGER, MPI_MAX, comm=0x84000000) failed
MPIR_Allreduce(364)...............:
MPIDI_CH3U_Post_data_receive(1625): Message from rank 1 and tag 14 truncated; 16 bytes received but buffer size is 8
rank 0 in job 1 irlin817_59370 caused collective abort of all ranks
exit status of rank 0: killed by signal 9

But when running under totalview the debugger does not stop on this mpi error and since there is hundred of MPI_Allreduce calls
it's impossible to check them all.

A+
Thomas