I'm having a weird problem while using the MPI_Comm_Accept (C) or the
MPI::Comm::Accept (C++ bindings).
My "server" runs until the call to this function but if there's no client
connecting, it sits there eating all CPU (100%), although if a client connects
the loop works fine, but when the client disconnects again we are back to the
same high CPU usage.
I tried using OpenMPI version 1.1.2 and 1.2. The machines architectures are
AMD Opteron and Intel Itanium2 respectively, the former compiled with gcc
4.1.1 and the later with gcc 3.2.3.
The C++ code is here:
along with the logs for orted and the 'server' output.
I started orted with:
orted --persistent --seed --scope public --universe foo
and the 'server' with
mpirun --universe foo -np 1 ./server
The code is a C++ conversion from the C basic one posted at the mpi-forum
Is there an easy fix for this? I tried also the C version having the same