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from mpi4py import MPI
import mpiunittest as unittest
import os, re, sys
import subprocess as sp
import shutil
mod_file = MPI.__file__
pxd_file = os.path.join(os.path.dirname(mod_file), 'libmpi.pxd')
mpi_small_count_allowed = [
'MPI_Op_create',
]
mpi_fortran = [
'MPI_Type_create_f90_integer',
'MPI_Type_create_f90_real',
'MPI_Type_create_f90_complex',
]
mpi_deprecated = [
'MPI_Attr_delete',
'MPI_Attr_get',
'MPI_Attr_put',
'MPI_Info_get',
'MPI_Info_get_valuelen',
'MPI_Keyval_create',
'MPI_Keyval_free',
]
mpi_removed = [
'MPI_Address',
'MPI_Errhandler_create',
'MPI_Errhandler_get',
'MPI_Errhandler_set',
'MPI_Type_extent',
'MPI_Type_hindexed',
'MPI_Type_hvector',
'MPI_Type_lb',
'MPI_Type_struct',
'MPI_Type_ub',
]
mpi_missing = []
if MPI.Get_version() < (4, 1):
mpi_missing += [
f'MPI_Remove_error_{func}'
for func in ('class', 'code', 'string')
]
mpi_missing += [
f'MPI_Status_{func}_{attr}'
for func in ('get', 'set')
for attr in ('source', 'tag', 'error')
]
mpi_missing += [
f'MPI_Request_get_status_{func}'
for func in ('any', 'all', 'some')
]
mpi_missing += [
f'MPI_Buffer_{func}'
for func in ('flush', 'iflush')
] + [
f'MPI_{cls}_{func}_buffer{kind}'
for cls in ('Comm', 'Session')
for func in ('attach', 'detach', 'flush', 'iflush')
for kind in (('',) if 'flush' in func else ('', '_c'))
]
mpi_missing += [
'MPI_Type_get_value_index',
'MPI_Get_hw_resource_info',
]
if MPI.Get_version() < (6, 0):
mpi_missing += [
'MPI_Comm_ack_failed',
'MPI_Comm_agree',
'MPI_Comm_get_failed',
'MPI_Comm_iagree',
'MPI_Comm_is_revoked',
'MPI_Comm_ishrink',
'MPI_Comm_revoke',
'MPI_Comm_shrink',
]
name, version = MPI.get_vendor()
if name == 'MPICH' and version < (4, 0, 3):
mpi_missing += [
'MPI_Status_set_elements_c',
]
@unittest.skipMPI('MPI(<4.0)')
class TestMPIAPI(unittest.TestCase):
MPINAME = r"MPI_[A-Z][a-z0-9_]+"
def get_api_symbols(self):
regex = re.compile(rf"^\s*int\s+({self.MPINAME})\s*\(")
api_symbols = set()
with open(pxd_file) as fh:
for line in fh:
match = regex.search(line)
if match:
sym = match.groups()[0]
api_symbols.add(sym)
return api_symbols
def get_mod_symbols(self):
nm = shutil.which('nm')
nm_flags = ['-Pu']
if sys.platform == 'linux':
nm_flags.append('-D')
cmd = [nm, *nm_flags, mod_file]
out = sp.check_output(cmd, close_fds=False)
nm_output = out.decode()
regex = re.compile(rf"^_?({self.MPINAME}) U.*$")
mod_symbols = set()
for line in nm_output.split("\n"):
match = regex.search(line)
if match:
sym = match.groups()[0]
mod_symbols.add(sym)
return mod_symbols
@unittest.skipIf(shutil.which('nm') is None, 'nm')
@unittest.skipUnless(hasattr(os, 'posix_spawn'), 'os.posix_spawn')
def testLargeCountSymbols(self):
api_symbols = self.get_api_symbols()
large_count = {sym for sym in api_symbols if sym.endswith("_c")}
mpi_symbols = self.get_mod_symbols()
for sym in mpi_small_count_allowed:
self.assertIn(sym, mpi_symbols)
mpi_symbols.difference_update(mpi_small_count_allowed)
small_count = {sym[:-2] for sym in large_count}
bad_symbols = set.intersection(small_count, mpi_symbols)
self.assertFalse(bad_symbols)
@unittest.skipIf(shutil.which('nm') is None, 'nm')
@unittest.skipUnless(hasattr(os, 'posix_spawn'), 'os.posix_spawn')
def testSymbolCoverage(self):
api_symbols = self.get_api_symbols()
mod_symbols = self.get_mod_symbols()
self.assertTrue(api_symbols)
self.assertTrue(mod_symbols)
uncovered = set.difference(api_symbols, mod_symbols)
uncovered.difference_update(mpi_deprecated)
uncovered.difference_update(mpi_removed)
uncovered.difference_update(mpi_missing)
for sym in mod_symbols:
if sym.endswith("_c"):
uncovered.discard(sym[:-2])
uncovered.discard(sym[:-2] + '_x')
if sym.endswith("_x"):
uncovered.discard(sym[:-2])
uncovered.discard(sym[:-2] + '_c')
if MPI.REAL == MPI.DATATYPE_NULL or MPI.REAL.Get_size() == 0:
uncovered.difference_update(mpi_fortran)
if name == 'MPICH' and MPI.DISPLACEMENT_CURRENT == 0:
mpiio = re.compile('MPI_(File_.*|Register_datarep)')
uncovered = set(filter( lambda s: not mpiio.match(s), uncovered))
self.assertFalse(uncovered)
if __name__ == '__main__':
unittest.main()
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