Hi Paul > Is it possible to configure/run OpenMPI in a such way, that only _one_ > process (e.g. master) performs real disk I/O, and other processes sends the > data to the master which works as an agent?
It is possible to run OpenMPI this way, but it is not a matter of configuration, but of implementation alone. > Of course this would impacts the performance, because all data must be send > over network, and the master may became a bottleneck. But is such scenario - > IO of all processes bundled to one process - practicable at all? I think this question can only be answered by trying, because it depends strongly on the volume of your messages and the quality of your hardware (network and disk speed) Jody
