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Diffstat (limited to 'libs/mpi/src/python/py_communicator.cpp')
-rw-r--r-- | libs/mpi/src/python/py_communicator.cpp | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/libs/mpi/src/python/py_communicator.cpp b/libs/mpi/src/python/py_communicator.cpp new file mode 100644 index 000000000..6e53f56f9 --- /dev/null +++ b/libs/mpi/src/python/py_communicator.cpp @@ -0,0 +1,133 @@ +// (C) Copyright 2006 Douglas Gregor <doug.gregor -at- gmail.com> + +// Use, modification and distribution is subject to the Boost Software +// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +// Authors: Douglas Gregor + +/** @file communicator.cpp + * + * This file reflects the Boost.MPI @c communicator class into + * Python. + */ +#include <boost/python.hpp> +#include <boost/mpi.hpp> +#include <boost/mpi/python/serialize.hpp> +#include "request_with_value.hpp" + +using namespace boost::python; +using namespace boost::mpi; + +namespace boost { namespace mpi { namespace python { + +extern const char* communicator_docstring; +extern const char* communicator_default_constructor_docstring; +extern const char* communicator_rank_docstring; +extern const char* communicator_size_docstring; +extern const char* communicator_send_docstring; +extern const char* communicator_recv_docstring; +extern const char* communicator_isend_docstring; +extern const char* communicator_irecv_docstring; +extern const char* communicator_probe_docstring; +extern const char* communicator_iprobe_docstring; +extern const char* communicator_barrier_docstring; +extern const char* communicator_split_docstring; +extern const char* communicator_split_key_docstring; +extern const char* communicator_abort_docstring; + +object +communicator_recv(const communicator& comm, int source, int tag, + bool return_status) +{ + using boost::python::make_tuple; + + object result; + status stat = comm.recv(source, tag, result); + if (return_status) + return make_tuple(result, stat); + else + return result; +} + +request_with_value +communicator_irecv(const communicator& comm, int source, int tag) +{ + boost::shared_ptr<object> result(new object()); + request_with_value req(comm.irecv(source, tag, *result)); + req.m_internal_value = result; + return req; +} + +object +communicator_iprobe(const communicator& comm, int source, int tag) +{ + if (boost::optional<status> result = comm.iprobe(source, tag)) + return object(*result); + else + return object(); +} + +extern void export_skeleton_and_content(class_<communicator>&); + +void export_communicator() +{ + using boost::python::arg; + using boost::python::object; + + class_<communicator> comm("Communicator", communicator_docstring); + comm + .def(init<>()) + .add_property("rank", &communicator::rank, communicator_rank_docstring) + .add_property("size", &communicator::size, communicator_size_docstring) + .def("send", + (void (communicator::*)(int, int, const object&) const) + &communicator::send<object>, + (arg("dest"), arg("tag") = 0, arg("value") = object()), + communicator_send_docstring) + .def("recv", &communicator_recv, + (arg("source") = any_source, arg("tag") = any_tag, + arg("return_status") = false), + communicator_recv_docstring) + .def("isend", + (request (communicator::*)(int, int, const object&) const) + &communicator::isend<object>, + (arg("dest"), arg("tag") = 0, arg("value") = object()), + communicator_isend_docstring) + .def("irecv", &communicator_irecv, + (arg("source") = any_source, arg("tag") = any_tag), + communicator_irecv_docstring) + .def("probe", &communicator::probe, + (arg("source") = any_source, arg("tag") = any_tag), + communicator_probe_docstring) + .def("iprobe", &communicator_iprobe, + (arg("source") = any_source, arg("tag") = any_tag), + communicator_iprobe_docstring) + .def("barrier", &communicator::barrier, communicator_barrier_docstring) + .def("__nonzero__", &communicator::operator bool) + .def("split", + (communicator (communicator::*)(int) const)&communicator::split, + (arg("color")), communicator_split_docstring) + .def("split", + (communicator (communicator::*)(int, int) const)&communicator::split, + (arg("color"), arg("key"))) + .def("abort", &communicator::abort, arg("errcode"), + communicator_abort_docstring) + ; + + // Module-level attributes + scope().attr("any_source") = any_source; + scope().attr("any_tag") = any_tag; + + { + communicator world; + scope().attr("world") = world; + scope().attr("rank") = world.rank(); + scope().attr("size") = world.size(); + } + + // Export skeleton and content + export_skeleton_and_content(comm); +} + +} } } // end namespace boost::mpi::python |