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#!/usr/bin/env python
#
# Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
# Copyright (c) 1997-2016 California Institute of Technology.
# Copyright (c) 2016-2025 The Uncertainty Quantification Foundation.
# License: 3-clause BSD. The full license text is available at:
# - https://github.com/uqfoundation/pyina/blob/master/LICENSE
"""
# Testing pyina.mpi.world.recv
# To run:
mpiexec -np 4 `which python` mpi_simple.py
of
python mpi_simple.py
"""
import logging
import pyina
class SimpleApp(object):
def __call__(self):
from pyina import mpi
stat = mpi.MPI.Status
world = mpi.world
logging.info("I am rank %d of %d" % (world.rank, world.size))
if world.rank == 0:
for peer in range(1, world.size):
status = stat()
message = world.recv(tag=17)
print("node %d of %d: received {%s}" % (world.rank, world.size, message))
else:
s = "My message is this: I am node %d" % world.rank
logging.debug("%s" % s)
world.send(s, 0, 17)
return
if __name__ == "__main__":
app = SimpleApp()
app()
# End of file
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