This is a demonstration of using the Python mpi4py. The batch file is specific to the Texas Advanced Computing Center's Lonestar machine.

The actual mpi4py sample does very little and is taken from the mpi4py documentation. More interesting is the logging.

Logging from many worker tasks usually opens a separate file for each task. This batch job starts a logging service on the head node before starting worker tasks. The logging service listens over UDP for the worker tasks to send messages. When the job is finished, the batch script kills the logging service.

Andrew Dolgert Cornell Center for Advanced Computing