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from mpi4py import MPI
import mpiunittest as unittest
class TestCommNull(unittest.TestCase):
def testContructor(self):
comm = MPI.Comm()
self.assertEqual(comm, MPI.COMM_NULL)
self.assertFalse(comm is MPI.COMM_NULL)
def construct(): MPI.Comm((1,2,3))
self.assertRaises(TypeError, construct)
def testContructorIntra(self):
comm_null = MPI.Intracomm()
self.assertFalse(comm_null is MPI.COMM_NULL)
self.assertEqual(comm_null, MPI.COMM_NULL)
def testContructorInter(self):
comm_null = MPI.Intercomm()
self.assertFalse(comm_null is MPI.COMM_NULL)
self.assertEqual(comm_null, MPI.COMM_NULL)
class BaseTestComm(object):
def testContructor(self):
comm = MPI.Comm(self.COMM)
self.assertEqual(comm, self.COMM)
self.assertFalse(comm is self.COMM)
def testPyProps(self):
comm = self.COMM
self.assertEqual(comm.Get_size(), comm.size)
self.assertEqual(comm.Get_rank(), comm.rank)
self.assertEqual(comm.Is_intra(), comm.is_intra)
self.assertEqual(comm.Is_inter(), comm.is_inter)
self.assertEqual(comm.Get_topology(), comm.topology)
def testGroup(self):
comm = self.COMM
group = self.COMM.Get_group()
self.assertEqual(comm.Get_size(), group.Get_size())
self.assertEqual(comm.Get_rank(), group.Get_rank())
group.Free()
self.assertEqual(group, MPI.GROUP_NULL)
def testCloneFree(self):
comm = self.COMM.Clone()
comm.Free()
self.assertEqual(comm, MPI.COMM_NULL)
def testCompare(self):
results = (MPI.IDENT, MPI.CONGRUENT, MPI.SIMILAR, MPI.UNEQUAL)
ccmp = MPI.Comm.Compare(self.COMM, MPI.COMM_WORLD)
self.assertTrue(ccmp in results)
ccmp = MPI.Comm.Compare(self.COMM, self.COMM)
self.assertEqual(ccmp, MPI.IDENT)
comm = self.COMM.Dup()
ccmp = MPI.Comm.Compare(self.COMM, comm)
comm.Free()
self.assertEqual(ccmp, MPI.CONGRUENT)
def testIsInter(self):
is_inter = self.COMM.Is_inter()
self.assertTrue(type(is_inter) is bool)
def testGetSetName(self):
try:
name = self.COMM.Get_name()
except NotImplementedError:
return
self.COMM.Set_name('comm')
self.assertEqual(self.COMM.Get_name(), 'comm')
self.COMM.Set_name(name)
self.assertEqual(self.COMM.Get_name(), name)
def testGetParent(self):
try:
parent = MPI.Comm.Get_parent()
except NotImplementedError:
return
def testDupWithInfo(self):
info = None
self.COMM.Dup(info).Free()
info = MPI.INFO_NULL
self.COMM.Dup(info).Free()
self.COMM.Dup_with_info(info).Free()
info = MPI.Info.Create()
self.COMM.Dup(info).Free()
self.COMM.Dup_with_info(info).Free()
info.Free()
def testIDup(self):
try:
comm, request = self.COMM.Idup()
except NotImplementedError:
return
request.Wait()
ccmp = MPI.Comm.Compare(self.COMM, comm)
comm.Free()
self.assertEqual(ccmp, MPI.CONGRUENT)
def testGetSetInfo(self):
#info = MPI.INFO_NULL
#self.COMM.Set_info(info)
info = MPI.Info.Create()
self.COMM.Set_info(info)
info.Free()
info = self.COMM.Get_info()
self.COMM.Set_info(info)
info.Free()
def testCreate(self):
group = self.COMM.Get_group()
comm = self.COMM.Create(group)
ccmp = MPI.Comm.Compare(self.COMM, comm)
self.assertEqual(ccmp, MPI.CONGRUENT)
comm.Free()
group.Free()
def testCreateGroup(self):
group = self.COMM.Get_group()
try:
try:
comm = self.COMM.Create_group(group)
ccmp = MPI.Comm.Compare(self.COMM, comm)
self.assertEqual(ccmp, MPI.CONGRUENT)
comm.Free()
finally:
group.Free()
except NotImplementedError:
pass
def testSplitType(self):
try:
MPI.COMM_SELF.Split_type(MPI.COMM_TYPE_SHARED).Free()
except NotImplementedError:
return
#comm = self.COMM.Split_type(MPI.UNDEFINED)
#self.assertEqual(comm, MPI.COMM_NULL)
comm = self.COMM.Split_type(MPI.COMM_TYPE_SHARED)
self.assertNotEqual(comm, MPI.COMM_NULL)
size = self.COMM.Get_size()
rank = self.COMM.Get_rank()
if size == 1:
self.assertEqual(comm.size, 1)
self.assertEqual(comm.rank, 0)
comm.Free()
for root in range(size):
if rank == root:
split_type = MPI.COMM_TYPE_SHARED
else:
split_type = MPI.UNDEFINED
comm = self.COMM.Split_type(split_type)
if rank == root:
self.assertNotEqual(comm, MPI.COMM_NULL)
self.assertEqual(comm.size, 1)
self.assertEqual(comm.rank, 0)
comm.Free()
else:
self.assertEqual(comm, MPI.COMM_NULL)
class TestCommSelf(BaseTestComm, unittest.TestCase):
def setUp(self):
self.COMM = MPI.COMM_SELF
def testSize(self):
size = self.COMM.Get_size()
self.assertEqual(size, 1)
def testRank(self):
rank = self.COMM.Get_rank()
self.assertEqual(rank, 0)
class TestCommWorld(BaseTestComm, unittest.TestCase):
def setUp(self):
self.COMM = MPI.COMM_WORLD
def testSize(self):
size = self.COMM.Get_size()
self.assertTrue(size >= 1)
def testRank(self):
size = self.COMM.Get_size()
rank = self.COMM.Get_rank()
self.assertTrue(rank >= 0 and rank < size)
class TestCommSelfDup(TestCommSelf):
def setUp(self):
self.COMM = MPI.COMM_SELF.Dup()
def tearDown(self):
self.COMM.Free()
class TestCommWorldDup(TestCommWorld):
def setUp(self):
self.COMM = MPI.COMM_WORLD.Dup()
def tearDown(self):
self.COMM.Free()
name, version = MPI.get_vendor()
if name == 'MPICH':
if version < (3,1,1):
if MPI.Query_thread() > MPI.THREAD_SINGLE:
del BaseTestComm.testIDup
if name == 'Open MPI':
if version < (1,8,2):
del BaseTestComm.testCreateGroup
if version < (1,4,0):
if MPI.Query_thread() > MPI.THREAD_SINGLE:
del TestCommWorldDup
if __name__ == '__main__':
unittest.main()
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