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from mpi4py import MPI
import mpiunittest as unittest
import os, tempfile
class BaseTestFile(object):
COMM = MPI.COMM_NULL
FILE = MPI.FILE_NULL
prefix = 'mpi4py'
def setUp(self):
fd, self.fname = tempfile.mkstemp(prefix=self.prefix)
os.close(fd)
self.amode = MPI.MODE_RDWR | MPI.MODE_CREATE
#self.amode |= MPI.MODE_DELETE_ON_CLOSE
try:
self.FILE = MPI.File.Open(self.COMM,
self.fname, self.amode,
MPI.INFO_NULL)
#self.fname=None
except Exception:
os.remove(self.fname)
raise
def tearDown(self):
if self.FILE == MPI.FILE_NULL: return
amode = self.FILE.amode
self.FILE.Close()
if not (amode & MPI.MODE_DELETE_ON_CLOSE):
MPI.File.Delete(self.fname, MPI.INFO_NULL)
def testPreallocate(self):
## MPICH2 1.0.x emits a nesting level warning
## when preallocating zero size.
name, ver = MPI.get_vendor()
if not (name == 'MPICH2' and ver < (1,1,0)):
self.FILE.Preallocate(0)
size = self.FILE.Get_size()
self.assertEqual(size, 0)
self.FILE.Preallocate(1)
size = self.FILE.Get_size()
self.assertEqual(size, 1)
self.FILE.Preallocate(100)
size = self.FILE.Get_size()
self.assertEqual(size, 100)
self.FILE.Preallocate(10)
size = self.FILE.Get_size()
self.assertEqual(size, 100)
self.FILE.Preallocate(200)
size = self.FILE.Get_size()
self.assertEqual(size, 200)
def testGetSetSize(self):
size = self.FILE.Get_size()
self.assertEqual(size, 0)
size = self.FILE.size
self.assertEqual(size, 0)
self.FILE.Set_size(100)
size = self.FILE.Get_size()
self.assertEqual(size, 100)
size = self.FILE.size
self.assertEqual(size, 100)
def testGetGroup(self):
fgroup = self.FILE.Get_group()
cgroup = self.COMM.Get_group()
gcomp = MPI.Group.Compare(fgroup, cgroup)
self.assertEqual(gcomp, MPI.IDENT)
fgroup.Free()
cgroup.Free()
def testGetAmode(self):
amode = self.FILE.Get_amode()
self.assertEqual(self.amode, amode)
self.assertEqual(self.FILE.amode, self.amode)
def testGetSetInfo(self):
#info = MPI.INFO_NULL
#self.FILE.Set_info(info)
info = MPI.Info.Create()
self.FILE.Set_info(info)
info.Free()
info = self.FILE.Get_info()
self.FILE.Set_info(info)
info.Free()
def testGetSetView(self):
fsize = 100 * MPI.DOUBLE.size
self.FILE.Set_size(fsize)
displacements = range(100)
datatypes = [MPI.SHORT, MPI.INT, MPI.LONG, MPI.FLOAT, MPI.DOUBLE]
datareps = ['native'] #['native', 'internal', 'external32']
for disp in displacements:
for dtype in datatypes:
for datarep in datareps:
etype, ftype = dtype, dtype
self.FILE.Set_view(disp, etype, ftype,
datarep, MPI.INFO_NULL)
of, et, ft, dr = self.FILE.Get_view()
self.assertEqual(disp, of)
self.assertEqual(etype, et)
self.assertEqual(ftype, ft)
self.assertEqual(datarep, dr)
#try: et.Free()
#except MPI.Exception: pass
#try: ft.Free()
#except MPI.Exception: pass
def testGetSetAtomicity(self):
atom = self.FILE.Get_atomicity()
self.assertFalse(atom)
for atomicity in [True, False] * 4:
self.FILE.Set_atomicity(atomicity)
atom = self.FILE.Get_atomicity()
self.assertEqual(atom, atomicity)
def testSync(self):
self.FILE.Sync()
def testSeekGetPosition(self):
offset = 0
self.FILE.Seek(offset, MPI.SEEK_END)
self.FILE.Seek(offset, MPI.SEEK_CUR)
self.FILE.Seek(offset, MPI.SEEK_SET)
pos = self.FILE.Get_position()
self.assertEqual(pos, offset)
def testSeekGetPositionShared(self):
offset = 0
self.FILE.Seek_shared(offset, MPI.SEEK_END)
self.FILE.Seek_shared(offset, MPI.SEEK_CUR)
self.FILE.Seek_shared(offset, MPI.SEEK_SET)
pos = self.FILE.Get_position_shared()
self.assertEqual(pos, offset)
def testGetByteOffset(self):
for offset in range(10):
disp = self.FILE.Get_byte_offset(offset)
self.assertEqual(disp, offset)
def testGetTypeExtent(self):
extent = self.FILE.Get_type_extent(MPI.BYTE)
self.assertEqual(extent, 1)
def testGetErrhandler(self):
eh = self.FILE.Get_errhandler()
self.assertEqual(eh, MPI.ERRORS_RETURN)
eh.Free()
class TestFileNull(unittest.TestCase):
def setUp(self):
self.eh_save = MPI.FILE_NULL.Get_errhandler()
def tearDown(self):
MPI.FILE_NULL.Set_errhandler(self.eh_save)
self.eh_save.Free()
def testGetSetErrhandler(self):
eh = MPI.FILE_NULL.Get_errhandler()
self.assertEqual(eh, MPI.ERRORS_RETURN)
eh.Free()
MPI.FILE_NULL.Set_errhandler(MPI.ERRORS_ARE_FATAL)
eh = MPI.FILE_NULL.Get_errhandler()
self.assertEqual(eh, MPI.ERRORS_ARE_FATAL)
eh.Free()
MPI.FILE_NULL.Set_errhandler(MPI.ERRORS_RETURN)
eh = MPI.FILE_NULL.Get_errhandler()
self.assertEqual(eh, MPI.ERRORS_RETURN)
eh.Free()
class TestFileSelf(BaseTestFile, unittest.TestCase):
COMM = MPI.COMM_SELF
prefix = BaseTestFile.prefix + ('-%d' % MPI.COMM_WORLD.Get_rank())
import sys
name, version = MPI.get_vendor()
if name == 'Open MPI':
if version < (1,2,9):
if MPI.Query_thread() > MPI.THREAD_SINGLE:
del BaseTestFile.testPreallocate
del BaseTestFile.testGetSetInfo
del BaseTestFile.testGetSetAtomicity
del BaseTestFile.testSync
del BaseTestFile.testGetAmode
del BaseTestFile.testGetSetSize
del BaseTestFile.testGetSetView
del BaseTestFile.testGetByteOffset
del BaseTestFile.testGetTypeExtent
del BaseTestFile.testSeekGetPosition
del BaseTestFile.testSeekGetPositionShared
if sys.platform.startswith('win'):
del TestFileNull
del TestFileSelf
try:
dummy = BaseTestFile()
dummy.COMM = MPI.COMM_SELF
dummy.setUp()
dummy.tearDown()
del dummy
except NotImplementedError:
try: del TestFileNull
except NameError: pass
try: del TestFileSelf
except NameError: pass
if __name__ == '__main__':
unittest.main()
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