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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkMPI4PyCommunicator.h"
#include "vtkMPI.h"
#include "vtkMPICommunicator.h"
#include "vtkObjectFactory.h"
#include <mpi4py/mpi4py.h>
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkMPI4PyCommunicator);
//------------------------------------------------------------------------------
vtkMPI4PyCommunicator::vtkMPI4PyCommunicator() = default;
//------------------------------------------------------------------------------
PyObject* vtkMPI4PyCommunicator::ConvertToPython(vtkMPICommunicator* comm)
{
// Import mpi4py if it does not exist.
if (!PyMPIComm_New)
{
if (import_mpi4py() < 0)
{
Py_RETURN_NONE;
}
}
if (!comm || !comm->GetMPIComm())
{
Py_RETURN_NONE;
}
return PyMPIComm_New(*comm->GetMPIComm()->GetHandle());
}
//------------------------------------------------------------------------------
vtkMPICommunicator* vtkMPI4PyCommunicator::ConvertToVTK(PyObject* comm)
{
// Import mpi4py if it does not exist.
if (!PyMPIComm_Get)
{
if (import_mpi4py() < 0)
{
return nullptr;
}
}
if (!comm || !PyObject_TypeCheck(comm, &PyMPIComm_Type))
{
return nullptr;
}
MPI_Comm* mpiComm = PyMPIComm_Get(comm);
vtkMPICommunicator* vtkComm = vtkMPICommunicator::New();
vtkMPICommunicatorOpaqueComm opaqueComm(mpiComm);
if (!vtkComm->InitializeExternal(&opaqueComm))
{
vtkComm->Delete();
return nullptr;
}
return vtkComm;
}
//------------------------------------------------------------------------------
void vtkMPI4PyCommunicator::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
VTK_ABI_NAMESPACE_END
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