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from mpi4py import MPI
import mpiunittest as unittest
import contextlib
import arrayimpl
scalar = arrayimpl.scalar
def mkzeros(n):
return bytearray(n)
def memzero(m):
try:
m[:] = 0
except IndexError: # cffi buffer
m[0:len(m)] = b'\0'*len(m)
@contextlib.contextmanager
def win_lock(win, rank, *args, **kwargs):
win.Lock(rank, *args, **kwargs)
try:
yield
finally:
win.Unlock(rank)
class BaseTestRMA:
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:
self.mpi_memory = None
self.memory = bytearray(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)
@unittest.skipMPI('impi(>=2021.13.0)')
def testPutGet(self):
group = self.WIN.Get_group()
size = group.Get_size()
group.Free()
for array, typecode in arrayimpl.loop():
with arrayimpl.test(self):
if unittest.is_mpi_gpu('mvapich', array): continue
for count in range(10):
for rank in range(size):
with self.subTest(rank=rank, count=count):
sbuf = array([rank]*count, typecode)
rbuf = array(-1, typecode, count+1)
self.WIN.Fence()
with win_lock(self.WIN, rank):
r = self.WIN.Rput(sbuf.as_mpi(), rank)
r.Wait()
self.WIN.Flush(rank)
r = self.WIN.Rget(rbuf.as_mpi_c(count), rank)
r.Wait()
for i in range(count):
self.assertEqual(sbuf[i], scalar(rank))
self.assertEqual(rbuf[i], scalar(rank))
self.assertEqual(rbuf[-1], scalar(-1))
@unittest.skipMPI('impi(>=2021.13.0)')
@unittest.skipMPI('openmpi(>=1.10.0,<1.11.0)')
def testAccumulate(self):
group = self.WIN.Get_group()
size = group.Get_size()
group.Free()
for array, typecode in arrayimpl.loop():
with arrayimpl.test(self):
if unittest.is_mpi_gpu('openmpi', array): continue
if unittest.is_mpi_gpu('mvapich', array): continue
if typecode in '?': continue
if typecode in 'FDG': continue
for count in range(10):
for rank in range(size):
with self.subTest(rank=rank, count=count):
ones = array([1]*count, typecode)
sbuf = array(range(count), typecode)
rbuf = array(-1, typecode, count+1)
for op in (
MPI.SUM, MPI.PROD,
MPI.MAX, MPI.MIN,
MPI.REPLACE,
):
with win_lock(self.WIN, rank):
self.WIN.Put(ones.as_mpi(), rank)
self.WIN.Flush(rank)
r = self.WIN.Raccumulate(sbuf.as_mpi(),
rank, op=op)
r.Wait()
self.WIN.Flush(rank)
r = self.WIN.Rget(rbuf.as_mpi_c(count), rank)
r.Wait()
#
for i in range(count):
self.assertEqual(sbuf[i], scalar(i))
self.assertEqual(rbuf[i], scalar(op(1, i)))
self.assertEqual(rbuf[-1], scalar(-1))
@unittest.skipMPI('impi(>=2021.13.0)')
@unittest.skipMPI('openmpi(>=1.10,<1.11)')
def testGetAccumulate(self):
group = self.WIN.Get_group()
size = group.Get_size()
group.Free()
for array, typecode in arrayimpl.loop():
with arrayimpl.test(self):
if unittest.is_mpi_gpu('openmpi', array): continue
if unittest.is_mpi_gpu('mvapich', array): continue
if typecode in '?': continue
if typecode in 'FDG': continue
for count in range(10):
for rank in range(size):
with self.subTest(rank=rank, count=count):
ones = array([1]*count, typecode)
sbuf = array(range(count), typecode)
rbuf = array(-1, typecode, count+1)
gbuf = array(-1, typecode, count+1)
for op in (
MPI.SUM, MPI.PROD,
MPI.MAX, MPI.MIN,
MPI.REPLACE, MPI.NO_OP,
):
with win_lock(self.WIN, rank):
self.WIN.Put(ones.as_mpi(), rank)
self.WIN.Flush(rank)
r = self.WIN.Rget_accumulate(sbuf.as_mpi(),
rbuf.as_mpi_c(count),
rank, op=op)
r.Wait()
self.WIN.Flush(rank)
r = self.WIN.Rget(gbuf.as_mpi_c(count), rank)
r.Wait()
#
for i in range(count):
self.assertEqual(sbuf[i], scalar(i))
self.assertEqual(rbuf[i], scalar(1))
self.assertEqual(gbuf[i], scalar(op(1, i)))
self.assertEqual(rbuf[-1], scalar(-1))
self.assertEqual(gbuf[-1], scalar(-1))
def testPutProcNull(self):
rank = self.COMM.Get_rank()
with win_lock(self.WIN, rank):
r = self.WIN.Rput(None, MPI.PROC_NULL, None)
r.Wait()
def testGetProcNull(self):
rank = self.COMM.Get_rank()
with win_lock(self.WIN, rank):
r = self.WIN.Rget(None, MPI.PROC_NULL, None)
r.Wait()
def testAccumulateProcNullReplace(self):
rank = self.COMM.Get_rank()
zeros = mkzeros(8)
with win_lock(self.WIN, rank):
r = self.WIN.Raccumulate([zeros, MPI.INT], MPI.PROC_NULL, None, MPI.REPLACE)
r.Wait()
r = self.WIN.Raccumulate([zeros, MPI.INT], MPI.PROC_NULL, None, MPI.REPLACE)
r.Wait()
def testAccumulateProcNullSum(self):
rank = self.COMM.Get_rank()
zeros = mkzeros(8)
with win_lock(self.WIN, rank):
r = self.WIN.Raccumulate([zeros, MPI.INT], MPI.PROC_NULL, None, MPI.SUM)
r.Wait()
r = self.WIN.Raccumulate([None, MPI.INT], MPI.PROC_NULL, None, MPI.SUM)
r.Wait()
@unittest.skipMPI('MPI(<3.0)')
@unittest.skipMPI('openmpi(<1.8.1)')
@unittest.skipMPI('MPICH2(<1.5.0)')
class TestRMASelf(BaseTestRMA, unittest.TestCase):
COMM = MPI.COMM_SELF
@unittest.skipMPI('MPI(<3.0)')
@unittest.skipMPI('openmpi(<1.8.1)')
@unittest.skipMPI('MPICH2(<1.5.0)')
class TestRMAWorld(BaseTestRMA, unittest.TestCase):
COMM = MPI.COMM_WORLD
try:
MPI.Win.Create(None, 1, MPI.INFO_NULL, MPI.COMM_SELF).Free()
except (NotImplementedError, MPI.Exception):
unittest.disable(BaseTestRMA, 'mpi-rma-nb')
if __name__ == '__main__':
unittest.main()
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