RE: [myrinet] mpich-gm hangs for >=128 size messages

> MPICH-GM seems to hang for messages 128 bytes and larger over Myrinet.
> I can only get MPICH-GM to work for 64 byte messages and smaller.
> If I run MPICH-GM over shared memory the problem does not occur.
> MPI-LAM works for the *same* program over TCP for large messages
> and shared memory.

Maria,

I would suspect a bug in your program. Incorrect programs sometimes work
with some mpi versions. mpich-gm treats all messages smaller than 16k the
same way, so there's no reason that it would be working for 64 bytes and not
128 bytes.

-- greg