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from mpi4py import MPI
import mpiunittest as unittest
class GReqCtx:
source = 3
tag = 7
completed = False
cancel_called = False
free_called = False
def query(self, status):
status.Set_source(self.source)
status.Set_tag(self.tag)
def free(self):
self.free_called = True
def cancel(self, completed):
self.cancel_called = True
if completed is not self.completed:
raise MPI.Exception(MPI.ERR_PENDING)
@unittest.skipMPI('MPI(<2.0)')
@unittest.skipMPI('openmpi(==4.1.0)')
class TestGrequest(unittest.TestCase):
def testConstructor(self):
ctx = GReqCtx()
greq = MPI.Grequest.Start(ctx.query, ctx.free, ctx.cancel)
dupe = MPI.Grequest(greq)
self.assertIs(type(dupe), MPI.Grequest)
self.assertEqual(dupe, greq)
dupe = MPI.Grequest.fromhandle(greq.handle)
self.assertIs(type(dupe), MPI.Grequest)
self.assertEqual(dupe, greq)
dupe = MPI.Grequest.f2py(greq.py2f())
self.assertIs(type(dupe), MPI.Grequest)
self.assertEqual(dupe, greq)
dupe = MPI.Request(greq)
self.assertIs(type(dupe), MPI.Request)
self.assertEqual(dupe, greq)
with self.assertRaises(TypeError):
dupe = MPI.Prequest(greq)
greq.Cancel()
greq.Complete()
greq.Wait()
@unittest.skipMPI('openmpi') # TODO: open-mpi/ompi#11681
def testExceptionHandling(self):
ctx = GReqCtx()
def raise_mpi(*args):
raise MPI.Exception(MPI.ERR_BUFFER)
def raise_rte(*args):
raise ValueError(42)
def check_exc(exception, is_mpi, stderr):
output = stderr.getvalue()
header = 'Traceback (most recent call last):\n'
if is_mpi:
chkcode = MPI.ERR_BUFFER
excname = MPI.Exception.__name__
else:
chkcode = MPI.ERR_OTHER
excname = ValueError.__name__
ierr = exception.Get_error_class()
self.assertEqual(ierr, chkcode)
self.assertTrue(output.startswith(header))
self.assertIn(excname, output)
for raise_fn, is_mpi in (
(raise_mpi, True),
(raise_rte, False),
):
greq = MPI.Grequest.Start(raise_fn, ctx.free, ctx.cancel)
greq.Complete()
with self.assertRaises(MPI.Exception) as exc_cm:
with unittest.capture_stderr() as stderr:
greq.Wait()
if greq:
greq.Free()
check_exc(exc_cm.exception, is_mpi, stderr)
#
greq = MPI.Grequest.Start(ctx.query, raise_fn, ctx.cancel)
greq.Complete()
with self.assertRaises(MPI.Exception) as exc_cm:
with unittest.capture_stderr() as stderr:
greq.Wait()
if greq:
greq.Free()
check_exc(exc_cm.exception, is_mpi, stderr)
#
greq = MPI.Grequest.Start(ctx.query, ctx.free, raise_fn)
with self.assertRaises(MPI.Exception) as exc_cm:
with unittest.capture_stderr() as stderr:
greq.Cancel()
greq.Complete()
greq.Wait()
if greq:
greq.Free()
check_exc(exc_cm.exception, is_mpi, stderr)
def testAll(self):
ctx = GReqCtx()
greq = MPI.Grequest.Start(ctx.query, ctx.free, ctx.cancel)
self.assertFalse(greq.Test())
self.assertFalse(ctx.free_called)
greq.Cancel()
self.assertTrue(ctx.cancel_called)
ctx.cancel_called = False
greq.Complete()
ctx.completed = True
greq.Cancel()
self.assertTrue(ctx.cancel_called)
status = MPI.Status()
self.assertTrue(greq.Test(status))
self.assertEqual(status.Get_source(), ctx.source)
self.assertEqual(status.Get_tag(), ctx.tag)
self.assertEqual(status.Get_error(), MPI.SUCCESS)
greq.Wait()
self.assertTrue(ctx.free_called)
def testAll1(self):
ctx = GReqCtx()
greq = MPI.Grequest.Start(ctx.query, None, None)
self.assertFalse(greq.Test())
greq.Cancel()
greq.Complete()
status = MPI.Status()
self.assertTrue(greq.Test(status))
self.assertEqual(status.Get_source(), ctx.source)
self.assertEqual(status.Get_tag(), ctx.tag)
self.assertEqual(status.Get_error(), MPI.SUCCESS)
self.assertFalse(status.Is_cancelled())
greq.Wait()
def testAll2(self):
greq = MPI.Grequest.Start(None, None, None)
self.assertFalse(greq.Test())
greq.Cancel()
greq.Complete()
status = MPI.Status()
self.assertTrue(greq.Test(status))
self.assertEqual(status.Get_source(), MPI.ANY_SOURCE)
self.assertEqual(status.Get_tag(), MPI.ANY_TAG)
self.assertEqual(status.Get_error(), MPI.SUCCESS)
self.assertFalse(status.Is_cancelled())
greq.Wait()
def testPyCompleteTest(self):
greq = MPI.Grequest.Start()
self.assertFalse(greq.Test())
greq.cancel()
greq.complete(42)
status = MPI.Status()
flag, result = greq.test(status)
self.assertTrue(flag)
self.assertEqual(result, 42)
self.assertEqual(status.Get_source(), MPI.ANY_SOURCE)
self.assertEqual(status.Get_tag(), MPI.ANY_TAG)
self.assertEqual(status.Get_error(), MPI.SUCCESS)
self.assertFalse(status.Is_cancelled())
obj = greq.wait()
self.assertIsNone(obj)
def testPyCompleteWait(self):
greq = MPI.Grequest.Start()
self.assertFalse(greq.Test())
greq.cancel()
greq.complete(42)
status = MPI.Status()
result = greq.wait(status)
self.assertEqual(result, 42)
self.assertEqual(status.Get_source(), MPI.ANY_SOURCE)
self.assertEqual(status.Get_tag(), MPI.ANY_TAG)
self.assertEqual(status.Get_error(), MPI.SUCCESS)
self.assertFalse(status.Is_cancelled())
flag, obj = greq.test()
self.assertTrue(flag)
self.assertIsNone(obj)
if __name__ == '__main__':
unittest.main()
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