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from mpi4py import MPI
import mpiunittest as unittest
class BaseTestGroup:
def testProperties(self):
group = self.GROUP
self.assertEqual(group.Get_size(), group.size)
self.assertEqual(group.Get_rank(), group.rank)
def testCompare(self):
results = (MPI.IDENT, MPI.SIMILAR, MPI.UNEQUAL)
group = MPI.COMM_WORLD.Get_group()
gcmp = MPI.Group.Compare(self.GROUP, group)
group.Free()
self.assertIn(gcmp, results)
gcmp = MPI.Group.Compare(self.GROUP, self.GROUP)
self.assertEqual(gcmp, MPI.IDENT)
gcmp = self.GROUP.Compare(self.GROUP)
self.assertEqual(gcmp, MPI.IDENT)
def testDup(self):
group = self.GROUP.Dup()
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
def testUnion(self):
group = MPI.Group.Union(MPI.GROUP_EMPTY, self.GROUP)
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
group = MPI.Group.Union(self.GROUP, MPI.GROUP_EMPTY)
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
group = MPI.Group.Union(self.GROUP, self.GROUP)
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
def testDifference(self):
group = MPI.Group.Difference(MPI.GROUP_EMPTY, self.GROUP)
self.assertEqual(MPI.Group.Compare(group, MPI.GROUP_EMPTY), MPI.IDENT)
group.Free()
group = MPI.Group.Difference(self.GROUP, MPI.GROUP_EMPTY)
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
group = MPI.Group.Difference(self.GROUP, self.GROUP)
self.assertEqual(MPI.Group.Compare(group, MPI.GROUP_EMPTY), MPI.IDENT)
group.Free()
def testIntersection(self):
group = MPI.Group.Intersection(MPI.GROUP_EMPTY, self.GROUP)
self.assertEqual(MPI.Group.Compare(group, MPI.GROUP_EMPTY), MPI.IDENT)
group.Free()
group = MPI.Group.Intersection(self.GROUP, MPI.GROUP_EMPTY)
self.assertEqual(MPI.Group.Compare(group, MPI.GROUP_EMPTY), MPI.IDENT)
group.Free()
group = MPI.Group.Intersection(self.GROUP, self.GROUP)
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
def testIncl(self):
group = self.GROUP.Incl([])
self.assertEqual(MPI.Group.Compare(group, MPI.GROUP_EMPTY), MPI.IDENT)
group.Free()
def testExcl(self):
group = self.GROUP.Excl([])
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
def testRangeIncl(self):
if self.GROUP == MPI.GROUP_EMPTY: return
group = self.GROUP.Range_incl([])
self.assertEqual(MPI.Group.Compare(group, MPI.GROUP_EMPTY), MPI.IDENT)
group.Free()
ranges = [ (0, self.GROUP.Get_size()-1, 1), ]
group = self.GROUP.Range_incl(ranges)
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
def testRangeExcl(self):
if self.GROUP == MPI.GROUP_EMPTY: return
group = self.GROUP.Range_excl([])
self.assertEqual(MPI.Group.Compare(group, self.GROUP), MPI.IDENT)
group.Free()
ranges = [ (0, self.GROUP.Get_size()-1, 1), ]
group = self.GROUP.Range_excl(ranges)
self.assertEqual(MPI.Group.Compare(group, MPI.GROUP_EMPTY), MPI.IDENT)
group.Free()
def testTranslRanks(self):
group1 = self.GROUP
group2 = self.GROUP
ranks1 = list(range(group1.Get_size())) * 3
ranks2 = MPI.Group.Translate_ranks(group1, ranks1)
ranks2 = MPI.Group.Translate_ranks(group1, ranks1, group2)
self.assertEqual(list(ranks1), list(ranks2))
group = self.GROUP
ranks1 = list(range(group.Get_size()))
ranks2 = group.Translate_ranks(group=group)
self.assertEqual(list(ranks1), list(ranks2))
ranks2 = group.Translate_ranks()
self.assertEqual(len(ranks2), group.Get_size())
self.assertNotIn(MPI.UNDEFINED, set(ranks2))
@unittest.skipMPI('MPICH1')
@unittest.skipMPI('LAM/MPI')
def testTranslRanksProcNull(self):
if self.GROUP == MPI.GROUP_EMPTY: return
group1 = self.GROUP
group2 = self.GROUP
ranks1 = [MPI.PROC_NULL] * 10
ranks2 = MPI.Group.Translate_ranks(group1, ranks1, group2)
self.assertEqual(list(ranks1), list(ranks2))
def testTranslRanksGroupEmpty(self):
if self.GROUP == MPI.GROUP_EMPTY: return
group1 = self.GROUP
group2 = MPI.GROUP_EMPTY
ranks1 = list(range(group1.Get_size())) * 2
ranks2 = MPI.Group.Translate_ranks(group1, ranks1, group2)
for rank in ranks2:
self.assertEqual(rank, MPI.UNDEFINED)
def testPickle(self):
from pickle import dumps
self.assertRaises(ValueError, dumps, self.GROUP)
class TestGroupNull(unittest.TestCase):
def testConstructor(self):
group = MPI.Group()
self.assertIsNot(group, MPI.GROUP_NULL)
self.assertEqual(group, MPI.GROUP_NULL)
def testNull(self):
GROUP_NULL = MPI.GROUP_NULL
group_null = MPI.Group()
self.assertFalse(GROUP_NULL)
self.assertFalse(group_null)
self.assertEqual(group_null, GROUP_NULL)
def testPickle(self):
from pickle import dumps, loads
group_null = loads(dumps(MPI.GROUP_NULL))
self.assertIs(group_null, MPI.GROUP_NULL)
group_null = loads(dumps(MPI.Group(MPI.GROUP_NULL)))
self.assertIsNot(group_null, MPI.GROUP_NULL)
self.assertEqual(group_null, MPI.GROUP_NULL)
class TestGroupEmpty(BaseTestGroup, unittest.TestCase):
def setUp(self):
self.GROUP = MPI.GROUP_EMPTY
def testEmpty(self):
self.assertTrue(self.GROUP)
def testSize(self):
size = self.GROUP.Get_size()
self.assertEqual(size, 0)
def testRank(self):
rank = self.GROUP.Get_rank()
self.assertEqual(rank, MPI.UNDEFINED)
@unittest.skipMPI('MPICH1')
def testTranslRanks(self):
super().testTranslRanks()
def testPickle(self):
from pickle import dumps, loads
group_empty = loads(dumps(MPI.GROUP_EMPTY))
self.assertIs(group_empty, MPI.GROUP_EMPTY)
group_empty = loads(dumps(MPI.Group(MPI.GROUP_EMPTY)))
self.assertIsNot(group_empty, MPI.GROUP_EMPTY)
self.assertEqual(group_empty, MPI.GROUP_EMPTY)
class TestGroupSelf(BaseTestGroup, unittest.TestCase):
def setUp(self):
self.GROUP = MPI.COMM_SELF.Get_group()
def tearDown(self):
self.GROUP.Free()
def testSize(self):
size = self.GROUP.Get_size()
self.assertEqual(size, 1)
def testRank(self):
rank = self.GROUP.Get_rank()
self.assertEqual(rank, 0)
class TestGroupWorld(BaseTestGroup, unittest.TestCase):
def setUp(self):
self.GROUP = MPI.COMM_WORLD.Get_group()
def tearDown(self):
self.GROUP.Free()
def testSize(self):
size = self.GROUP.Get_size()
self.assertGreaterEqual(size, 1)
def testRank(self):
size = self.GROUP.Get_size()
rank = self.GROUP.Get_rank()
self.assertTrue(rank >= 0 and rank < size)
if __name__ == '__main__':
unittest.main()
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