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subcomms

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This commit is contained in:
Joachim Schöberl 2019-02-08 20:24:54 +01:00
parent bab9d41b1b
commit 8a165ef8f1
2 changed files with 6 additions and 6 deletions
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1
libsrc/general/ngpython.hpp
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@ -3,6 +3,7 @@
#include <pybind11/pybind11.h>
#include <pybind11/operators.h>
#include <pybind11/numpy.h>
#include <pybind11/stl.h>
namespace py = pybind11;
#include <iostream>
#include <sstream>

11
libsrc/meshing/python_mesh.cpp
View File

@ -954,13 +954,12 @@ DLL_HEADER void ExportNetgenMeshing(py::module &m)
.def("Sum", [](PyMPI_Comm & c, size_t x) { return MyMPI_AllReduceNG(x, MPI_SUM, c.comm); })
.def("Min", [](PyMPI_Comm & c, size_t x) { return MyMPI_AllReduceNG(x, MPI_MIN, c.comm); })
.def("Max", [](PyMPI_Comm & c, size_t x) { return MyMPI_AllReduceNG(x, MPI_MAX, c.comm); })
.def("SubComm", [](PyMPI_Comm & c, py::list proc_list) {
Array<int> procs(py::len(proc_list));
.def("SubComm", [](PyMPI_Comm & c, std::vector<int> proc_list) {
Array<int> procs(proc_list.size());
for (int i = 0; i < procs.Size(); i++)
procs[i] = py::extract<int>(proc_list[i])();
if (!procs.Size())
return make_shared<PyMPI_Comm>(MPI_COMM_NULL);
procs[i] = proc_list[i];
if (!procs.Contains(c.Rank()))
throw Exception("rank "+ToString(c.Rank())+" not in subcomm");
MPI_Comm subcomm = MyMPI_SubCommunicator(c.comm, procs);
return make_shared<PyMPI_Comm>(subcomm, true);