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import sys, os, mpi4py
from mpi4py import MPI
import mpiunittest as unittest
MPI4PYPATH = os.path.abspath(os.path.dirname(mpi4py.__path__[0]))
CHILDSCRIPT = os.path.abspath(
os.path.join(os.path.dirname(__file__), 'spawn_child.py')
)
class BaseTestSpawn(object):
COMM = MPI.COMM_NULL
COMMAND = sys.executable
ARGS = [CHILDSCRIPT, MPI4PYPATH]
MAXPROCS = 1
INFO = MPI.INFO_NULL
ROOT = 0
def testCommSpawn(self):
child = self.COMM.Spawn(self.COMMAND, self.ARGS, self.MAXPROCS,
info=self.INFO, root=self.ROOT)
local_size = child.Get_size()
remote_size = child.Get_remote_size()
child.Barrier()
child.Disconnect()
self.assertEqual(local_size, self.COMM.Get_size())
self.assertEqual(remote_size, self.MAXPROCS)
def testReturnedErrcodes(self):
errcodes = []
child = self.COMM.Spawn(self.COMMAND, self.ARGS, self.MAXPROCS,
info=self.INFO, root=self.ROOT,
errcodes=errcodes)
child.Barrier()
child.Disconnect()
rank = self.COMM.Get_rank()
self.assertEqual(len(errcodes), self.MAXPROCS)
for errcode in errcodes:
self.assertEqual(errcode, MPI.SUCCESS)
def testArgsOnlyAtRoot(self):
self.COMM.Barrier()
rank = self.COMM.Get_rank()
if rank == self.ROOT:
child = self.COMM.Spawn(self.COMMAND, self.ARGS, self.MAXPROCS,
info=self.INFO, root=self.ROOT)
else:
child = self.COMM.Spawn(None, None, -1,
info=None, root=self.ROOT)
child.Barrier()
child.Disconnect()
self.COMM.Barrier()
def testCommSpawnMultiple(self):
COMMAND = [self.COMMAND] * 3
ARGS = [self.ARGS] * len(COMMAND)
MAXPROCS = [self.MAXPROCS] * len(COMMAND)
INFO = [self.INFO] * len(COMMAND)
child = self.COMM.Spawn_multiple(
COMMAND, ARGS, MAXPROCS,
info=INFO, root=self.ROOT)
local_size = child.Get_size()
remote_size = child.Get_remote_size()
child.Barrier()
child.Disconnect()
self.assertEqual(local_size, self.COMM.Get_size())
self.assertEqual(remote_size, sum(MAXPROCS))
def testReturnedErrcodesMultiple(self):
COMMAND = [self.COMMAND]*3
ARGS = [self.ARGS]*len(COMMAND)
MAXPROCS = range(1, len(COMMAND)+1)
INFO = MPI.INFO_NULL
errcodelist = []
child = self.COMM.Spawn_multiple(
COMMAND, ARGS, MAXPROCS,
info=INFO, root=self.ROOT,
errcodes=errcodelist)
child.Barrier()
child.Disconnect()
rank = self.COMM.Get_rank()
self.assertEqual(len(errcodelist), len(COMMAND))
for i, errcodes in enumerate(errcodelist):
self.assertEqual(len(errcodes), MAXPROCS[i])
for errcode in errcodes:
self.assertEqual(errcode, MPI.SUCCESS)
def testArgsOnlyAtRootMultiple(self):
self.COMM.Barrier()
rank = self.COMM.Get_rank()
if rank == self.ROOT:
COMMAND = [self.COMMAND] * 3
ARGS = [self.ARGS] * len(COMMAND)
MAXPROCS = range(2, len(COMMAND)+2)
INFO = [MPI.INFO_NULL] * len(COMMAND)
child = self.COMM.Spawn_multiple(
COMMAND, ARGS, MAXPROCS,
info=INFO, root=self.ROOT)
else:
child = self.COMM.Spawn_multiple(
None, None, -1,
info=None, root=self.ROOT)
child.Barrier()
child.Disconnect()
self.COMM.Barrier()
class TestSpawnSelf(BaseTestSpawn, unittest.TestCase):
COMM = MPI.COMM_SELF
class TestSpawnWorld(BaseTestSpawn, unittest.TestCase):
COMM = MPI.COMM_WORLD
class TestSpawnSelfMany(BaseTestSpawn, unittest.TestCase):
COMM = MPI.COMM_SELF
MAXPROCS = MPI.COMM_WORLD.Get_size()
class TestSpawnWorldMany(BaseTestSpawn, unittest.TestCase):
COMM = MPI.COMM_WORLD
MAXPROCS = MPI.COMM_WORLD.Get_size()
_SKIP_TEST = False
_name, _version = MPI.get_vendor()
if _name == 'Open MPI':
if _version < (1, 5, 0):
_SKIP_TEST = True
elif _version < (1, 4, 0):
_SKIP_TEST = True
if 'win' in sys.platform:
_SKIP_TEST = True
elif _name == 'MPICH2':
if _version < (1, 0, 6):
_SKIP_TEST = True
if 'win' in sys.platform:
_SKIP_TEST = True
elif _name == 'Microsoft MPI':
_SKIP_TEST = True
elif _name == 'HP MPI':
_SKIP_TEST = True
elif MPI.Get_version() < (2, 0):
_SKIP_TEST = True
if _SKIP_TEST:
del BaseTestSpawn
del TestSpawnSelf
del TestSpawnWorld
del TestSpawnSelfMany
del TestSpawnWorldMany
elif _name == 'MPICH2':
if _version > (1, 2):
# Up to mpich2-1.3.1 when running under Hydra process manager,
# spawn fails for the singleton init case
if MPI.COMM_WORLD.Get_attr(MPI.APPNUM) is None:
del TestSpawnSelf
del TestSpawnWorld
del TestSpawnSelfMany
del TestSpawnWorldMany
if __name__ == '__main__':
unittest.main()
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