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from mpi4py import MPI
import mpiunittest as unittest
import arrayimpl
def mkzeros(n):
import sys
if not hasattr(sys, 'pypy_version_info'):
try:
return bytearray([0]) * n
except NameError:
return str('\0') * n
return str('\0') * n
def memzero(m):
n = len(m)
if n == 0: return
try:
zero = '\0'.encode('ascii')
m[0] = zero
except TypeError:
zero = 0
m[0] = zero
for i in range(n):
m[i] = zero
class BaseTestRMA(object):
COMM = MPI.COMM_NULL
INFO = MPI.INFO_NULL
COUNT_MIN = 0
def setUp(self):
nbytes = 100*MPI.DOUBLE.size
try:
self.mpi_memory = MPI.Alloc_mem(nbytes)
self.memory = self.mpi_memory
memzero(self.memory)
except MPI.Exception:
from array import array
self.mpi_memory = None
self.memory = array('B',[0]*nbytes)
self.WIN = MPI.Win.Create(self.memory, 1, self.INFO, self.COMM)
def tearDown(self):
self.WIN.Free()
if self.mpi_memory:
MPI.Free_mem(self.mpi_memory)
def testPutGet(self):
group = self.WIN.Get_group()
size = group.Get_size()
group.Free()
for array in arrayimpl.ArrayTypes:
for typecode in arrayimpl.TypeMap:
for count in range(self.COUNT_MIN, 10):
for rank in range(size):
sbuf = array(range(count), typecode)
rbuf = array(-1, typecode, count+1)
self.WIN.Fence()
self.WIN.Put(sbuf.as_mpi(), rank)
self.WIN.Fence()
self.WIN.Get(rbuf.as_mpi_c(count), rank)
self.WIN.Fence()
for i in range(count):
self.assertEqual(sbuf[i], i)
self.assertNotEqual(rbuf[i], -1)
self.assertEqual(rbuf[-1], -1)
def testAccumulate(self):
group = self.WIN.Get_group()
size = group.Get_size()
group.Free()
for array in arrayimpl.ArrayTypes:
for typecode in arrayimpl.TypeMap:
for count in range(self.COUNT_MIN, 10):
for rank in range(size):
sbuf = array(range(count), typecode)
rbuf = array(-1, typecode, count+1)
for op in (MPI.SUM, MPI.PROD, MPI.MAX, MPI.MIN):
self.WIN.Fence()
self.WIN.Accumulate(sbuf.as_mpi(), rank, op=op)
self.WIN.Fence()
self.WIN.Get(rbuf.as_mpi_c(count), rank)
self.WIN.Fence()
#
for i in range(count):
self.assertEqual(sbuf[i], i)
self.assertNotEqual(rbuf[i], -1)
self.assertEqual(rbuf[-1], -1)
def testPutProcNull(self):
self.WIN.Fence()
self.WIN.Put(None, MPI.PROC_NULL, None)
self.WIN.Fence()
def testGetProcNull(self):
self.WIN.Fence()
self.WIN.Get(None, MPI.PROC_NULL, None)
self.WIN.Fence()
def testAccumulateProcNullReplace(self):
self.WIN.Fence()
zeros = mkzeros(8)
self.WIN.Fence()
self.WIN.Accumulate([zeros, MPI.INT], MPI.PROC_NULL, None, MPI.REPLACE)
self.WIN.Fence()
self.WIN.Accumulate([zeros, MPI.INT], MPI.PROC_NULL, None, MPI.REPLACE)
self.WIN.Fence()
def testAccumulateProcNullSum(self):
self.WIN.Fence()
zeros = mkzeros(8)
self.WIN.Fence()
self.WIN.Accumulate([zeros, MPI.INT], MPI.PROC_NULL, None, MPI.SUM)
self.WIN.Fence()
self.WIN.Accumulate([None, MPI.INT], MPI.PROC_NULL, None, MPI.SUM)
self.WIN.Fence()
def testFence(self):
self.WIN.Fence()
assertion = 0
modes = [0,
MPI.MODE_NOSTORE,
MPI.MODE_NOPUT,
MPI.MODE_NOPRECEDE,
MPI.MODE_NOSUCCEED]
self.WIN.Fence()
for mode in modes:
self.WIN.Fence(mode)
assertion |= mode
self.WIN.Fence(assertion)
self.WIN.Fence()
class TestRMASelf(BaseTestRMA, unittest.TestCase):
COMM = MPI.COMM_SELF
class TestRMAWorld(BaseTestRMA, unittest.TestCase):
COMM = MPI.COMM_WORLD
try:
w = MPI.Win.Create(None, 1, MPI.INFO_NULL, MPI.COMM_SELF).Free()
except NotImplementedError:
del TestRMASelf, TestRMAWorld
_name, _version = MPI.get_vendor()
if _name == 'Open MPI':
if _version < (1, 4, 0):
if MPI.Query_thread() > MPI.THREAD_SINGLE:
del TestRMAWorld
elif _name == 'HP MPI':
BaseTestRMA.COUNT_MIN = 1
if __name__ == '__main__':
unittest.main()
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