def Scan(self, sendbuf, recvbuf=None, op=SUM):
sendbuf, sfastmode = _mpi.make_buf(sendbuf)
recvbuf, rfastmode = _mpi.make_buf(recvbuf)
if sfastmode or rfastmode:
_mpi.scan(sendbuf, recvbuf, op, self)
return None
else:
recvbuf = self.Gather(sendbuf, root=0)
if _mpi.comm_rank(self) == 0:
if op in (MAXLOC, MINLOC):
recvbuf = zip(recvbuf, xrange(len(recvbuf)))
for i in xrange(1, len(recvbuf)):
recvbuf[i] = op(recvbuf[i - 1], recvbuf[i])
recvbuf = self.Scatter(recvbuf, root=0)
return recvbuf
def Scan(self, sendbuf, recvbuf = None, op = SUM):
sendbuf, sfastmode = _mpi.make_buf(sendbuf)
recvbuf, rfastmode = _mpi.make_buf(recvbuf)
if sfastmode or rfastmode:
_mpi.scan(sendbuf, recvbuf, op, self)
return None
else:
recvbuf = self.Gather(sendbuf, root=0)
if _mpi.comm_rank(self) == 0:
if op in (MAXLOC, MINLOC):
recvbuf = zip(recvbuf, xrange(len(recvbuf)))
for i in xrange(1, len(recvbuf)):
recvbuf[i] = op(recvbuf[i - 1], recvbuf[i])
recvbuf = self.Scatter(recvbuf, root=0)
return recvbuf
def Bcast(self, buf=None, root=0):
buf, fastmode = _mpi.make_buf(buf)
if fastmode:
_mpi.bcast(buf, root, self)
return
else:
serializer = self.SERIALIZER
if _mpi.comm_test_inter(self):
if root == _mpi.ROOT:
buf = serializer.dump(buf)
else:
buf = None
elif root == _mpi.comm_rank(self):
buf = serializer.dump(buf)
else:
buf = None
buf = _mpi.bcast_string(buf, root, self)
if buf is not None:
buf = serializer.load(buf)
return buf
def Bcast(self, buf = None, root = 0):
buf, fastmode = _mpi.make_buf(buf)
if fastmode:
_mpi.bcast(buf, root, self)
return
else:
serializer = self.SERIALIZER
if _mpi.comm_test_inter(self):
if root == _mpi.ROOT:
buf = serializer.dump(buf)
else:
buf = None
elif root == _mpi.comm_rank(self):
buf = serializer.dump(buf)
else:
buf = None
buf = _mpi.bcast_string(buf, root, self)
if buf is not None:
buf = serializer.load(buf)
return buf
def Scatter(self, sendbuf=None, recvbuf=None, root=0):
sendbuf, sfastmode = _mpi.make_buf(sendbuf)
recvbuf, rfastmode = _mpi.make_buf(recvbuf)
if sfastmode or rfastmode:
_mpi.scatter(sendbuf, recvbuf, root, self)
return
else:
serializer = self.SERIALIZER
if _mpi.comm_test_inter(self):
if root == _mpi.ROOT:
sendbuf = map(serializer.dump, sendbuf)
else:
sendbuf = None
elif root == _mpi.comm_rank(self):
sendbuf = map(serializer.dump, sendbuf)
else:
sendbuf = None
recvbuf = _mpi.scatter_string(sendbuf, recvbuf, root, self)
if recvbuf is not None:
recvbuf = serializer.load(recvbuf)
return recvbuf
def Scatter(self, sendbuf = None, recvbuf = None, root = 0):
sendbuf, sfastmode = _mpi.make_buf(sendbuf)
recvbuf, rfastmode = _mpi.make_buf(recvbuf)
if sfastmode or rfastmode:
_mpi.scatter(sendbuf, recvbuf, root, self)
return
else:
serializer = self.SERIALIZER
if _mpi.comm_test_inter(self):
if root == _mpi.ROOT:
sendbuf = map(serializer.dump, sendbuf)
else:
sendbuf = None
elif root == _mpi.comm_rank(self):
sendbuf = map(serializer.dump, sendbuf)
else:
sendbuf = None
recvbuf = _mpi.scatter_string(sendbuf, recvbuf, root, self)
if recvbuf is not None:
recvbuf = serializer.load(recvbuf)
return recvbuf
def Get_rank(self):
return _mpi.comm_rank(self)
def Get_rank(self):
return _mpi.comm_rank(self)