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import os
import pathlib
import re
import shutil
import subprocess as sp
import sys
import mpitestutil as testutil
import mpiunittest as unittest
from mpi4py import MPI
mod_file = pathlib.Path(MPI.__file__)
pxd_file = mod_file.parent / "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() < (5, 0):
mpi_missing += [
"MPI_Abi_get_version",
"MPI_Abi_get_info",
"MPI_Abi_get_fortran_info",
]
for _type in (
"Comm",
"Errhandler",
"File",
"Group",
"Info",
"Message",
"Op",
"Request",
"Session",
"Type",
"Win",
):
mpi_missing += [
f"MPI_{_type}_fromint",
f"MPI_{_type}_toint",
]
else:
mpi_missing += [
"MPI_Status_c2f",
"MPI_Status_f2c",
]
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 pxd_file.open(encoding="utf-8") 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 == "darwin":
nm_flags.append("-m")
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()
mpiname = self.MPINAME
if sys.platform == "darwin":
regex = re.compile(
rf"^\s+\(undefined\)\s+"
r"(?:(?P<kind>w)eak)?\s*external\s+"
rf"_(?P<name>{mpiname}).*$"
)
else:
regex = re.compile(
rf"^_?(?P<name>{mpiname})\s+"
r"(?P<kind>[UVvWw]).*$"
)
mod_symbols = set()
weak_symbols = set()
for line in nm_output.split("\n"):
match = regex.search(line)
if match:
sym = match.group("name")
knd = match.group("kind") or "U"
mod_symbols.add(sym)
if knd.lower() in ("v", "w"):
weak_symbols.add(sym)
for sym in weak_symbols:
if sym.endswith("_c"):
if sym[:-2] not in mpi_small_count_allowed:
mod_symbols.discard(sym[:-2])
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 not testutil.has_datatype(MPI.INTEGER):
uncovered.difference_update(mpi_fortran)
if name == "MPICH" and MPI.DISPLACEMENT_CURRENT == 0:
mpiio = re.compile(r"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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