mpi4py.MPI.Op

class mpi4py.MPI.Op(op=None)

Bases: object

Operation object

Parameters:

op (Optional[Op]) –

Return type:

Op

static __new__(cls, op=None)

Parameters:

op (Optional[Op]) –

Return type:

Op

Methods Summary

Create(function[, commute])	Create a user-defined operation
Free()	Free the operation
Is_commutative()	Query reduction operations for their commutativity
Reduce_local(inbuf, inoutbuf)	Apply a reduction operator to local data
f2py(arg)
py2f()

Attributes Summary

is_commutative	is commutative
is_predefined	is a predefined operation

Methods Documentation

classmethod Create(function, commute=False)

Create a user-defined operation

Parameters:

• function (Callable[[Buffer, Buffer, Datatype], None]) –

• commute (bool) –

Return type:

Op

Free()

Free the operation

Return type:

None

Is_commutative()

Query reduction operations for their commutativity

Return type:

bool

Reduce_local(inbuf, inoutbuf)

Apply a reduction operator to local data

Parameters:

• inbuf (BufSpec) –

• inoutbuf (BufSpec) –

Return type:

None

classmethod f2py(arg)

Parameters:

arg (int) –

Return type:

Op

py2f()

Return type:

int

Attributes Documentation

is_commutative

is commutative

is_predefined

is a predefined operation