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from mpi4py import MPI
import mpiunittest as unittest
import arrayimpl
class BaseTestP2PBuf(object):
COMM = MPI.COMM_NULL
def testSendrecv(self):
size = self.COMM.Get_size()
rank = self.COMM.Get_rank()
dest = (rank + 1) % size
source = (rank - 1) % size
for array in arrayimpl.ArrayTypes:
for typecode in arrayimpl.TypeMap:
for s in range(0, size):
sbuf = array( s, typecode, s)
rbuf = array(-1, typecode, s+1)
self.COMM.Sendrecv(sbuf.as_mpi(), dest, 0,
rbuf.as_mpi(), source, 0)
for value in rbuf[:-1]:
self.assertEqual(value, s)
self.assertEqual(rbuf[-1], -1)
def testSendRecv(self):
size = self.COMM.Get_size()
rank = self.COMM.Get_rank()
for array in arrayimpl.ArrayTypes:
for typecode in arrayimpl.TypeMap:
for s in range(0, size):
sbuf = array( s, typecode, s)
rbuf = array(-1, typecode, s)
mem = array( 0, typecode, s+MPI.BSEND_OVERHEAD)
if size == 1:
MPI.Attach_buffer(mem)
rbuf = sbuf
MPI.Detach_buffer()
elif rank == 0:
MPI.Attach_buffer(mem)
self.COMM.Bsend(sbuf.as_mpi(), 1, 0)
MPI.Detach_buffer()
self.COMM.Send(sbuf.as_mpi(), 1, 0)
self.COMM.Ssend(sbuf.as_mpi(), 1, 0)
self.COMM.Recv(rbuf.as_mpi(), 1, 0)
self.COMM.Recv(rbuf.as_mpi(), 1, 0)
self.COMM.Recv(rbuf.as_mpi(), 1, 0)
elif rank == 1:
self.COMM.Recv(rbuf.as_mpi(), 0, 0)
self.COMM.Recv(rbuf.as_mpi(), 0, 0)
self.COMM.Recv(rbuf.as_mpi(), 0, 0)
MPI.Attach_buffer(mem)
self.COMM.Bsend(sbuf.as_mpi(), 0, 0)
MPI.Detach_buffer()
self.COMM.Send(sbuf.as_mpi(), 0, 0)
self.COMM.Ssend(sbuf.as_mpi(), 0, 0)
else:
rbuf = sbuf
for value in rbuf:
self.assertEqual(value, s)
def testPersistent(self):
size = self.COMM.Get_size()
rank = self.COMM.Get_rank()
dest = (rank + 1) % size
source = (rank - 1) % size
for array in arrayimpl.ArrayTypes:
for typecode in arrayimpl.TypeMap:
for s in range(size):
for xs in range(3):
#
sbuf = array( s, typecode, s)
rbuf = array(-1, typecode, s+xs)
sendreq = self.COMM.Send_init(sbuf.as_mpi(), dest, 0)
recvreq = self.COMM.Recv_init(rbuf.as_mpi(), source, 0)
sendreq.Start()
recvreq.Start()
sendreq.Wait()
recvreq.Wait()
self.assertNotEqual(sendreq, MPI.REQUEST_NULL)
self.assertNotEqual(recvreq, MPI.REQUEST_NULL)
sendreq.Free()
recvreq.Free()
for value in rbuf[:s]:
self.assertEqual(value, s)
for value in rbuf[s:]:
self.assertEqual(value, -1)
#
sbuf = array(s, typecode, s)
rbuf = array(-1, typecode, s+xs)
sendreq = self.COMM.Send_init(sbuf.as_mpi(), dest, 0)
recvreq = self.COMM.Recv_init(rbuf.as_mpi(), source, 0)
reqlist = [sendreq, recvreq]
MPI.Prequest.Startall(reqlist)
index1 = MPI.Prequest.Waitany(reqlist)
self.assertTrue(index1 in [0, 1])
self.assertNotEqual(reqlist[index1], MPI.REQUEST_NULL)
index2 = MPI.Prequest.Waitany(reqlist)
self.assertTrue(index2 in [0, 1])
self.assertNotEqual(reqlist[index2], MPI.REQUEST_NULL)
self.assertTrue(index1 != index2)
index3 = MPI.Prequest.Waitany(reqlist)
self.assertEqual(index3, MPI.UNDEFINED)
for preq in reqlist:
self.assertNotEqual(preq, MPI.REQUEST_NULL)
preq.Free()
self.assertEqual(preq, MPI.REQUEST_NULL)
for value in rbuf[:s]:
self.assertEqual(value, s)
for value in rbuf[s:]:
self.assertEqual(value, -1)
def testIProbe(self):
comm = self.COMM.Dup()
try:
f = comm.Iprobe()
self.assertFalse(f)
f = comm.Iprobe(MPI.ANY_SOURCE)
self.assertFalse(f)
f = comm.Iprobe(MPI.ANY_SOURCE, MPI.ANY_TAG)
self.assertFalse(f)
status = MPI.Status()
f = comm.Iprobe(MPI.ANY_SOURCE, MPI.ANY_TAG, status)
self.assertFalse(f)
self.assertEqual(status.source, MPI.ANY_SOURCE)
self.assertEqual(status.tag, MPI.ANY_TAG)
self.assertEqual(status.error, MPI.SUCCESS)
finally:
comm.Free()
class TestP2PBufSelf(BaseTestP2PBuf, unittest.TestCase):
COMM = MPI.COMM_SELF
class TestP2PBufWorld(BaseTestP2PBuf, unittest.TestCase):
COMM = MPI.COMM_WORLD
class TestP2PBufSelfDup(BaseTestP2PBuf, unittest.TestCase):
def setUp(self):
self.COMM = MPI.COMM_SELF.Dup()
def tearDown(self):
self.COMM.Free()
class TestP2PBufWorldDup(BaseTestP2PBuf, unittest.TestCase):
def setUp(self):
self.COMM = MPI.COMM_WORLD.Dup()
def tearDown(self):
self.COMM.Free()
name, version = MPI.get_vendor()
if name == 'Open MPI':
if version < (1, 4, 0):
if MPI.Query_thread() > MPI.THREAD_SINGLE:
del TestP2PBufWorldDup
if __name__ == '__main__':
unittest.main()
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