Homec4science
Diffusion akantu (bugfixes/43-documentation-problem-with-latex-formatting) Browse

rAKA/src/synchronizer/static_communicator_mpi.cc
ac68e5b51518bugfixes/43-documentati…

Last Change
Raw File

static_communicator_mpi.cc
View Options

/**
* @file static_communicator_mpi.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Sun Sep 26 2010
* @date last modification: Thu Jan 21 2016
*
* @brief StaticCommunicatorMPI implementation
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014, 2015 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include <iostream>
/* -------------------------------------------------------------------------- */
#include "static_communicator_mpi.hh"
#include "mpi_type_wrapper.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
MPI_Op MPITypeWrapper::synchronizer_operation_to_mpi_op[_so_null + 1] = {
MPI_SUM, MPI_MIN, MPI_MAX, MPI_PROD, MPI_LAND, MPI_BAND, MPI_LOR,
MPI_BOR, MPI_LXOR, MPI_BXOR, MPI_MINLOC, MPI_MAXLOC, MPI_OP_NULL};
class CommunicationRequestMPI : public CommunicationRequest {
public:
CommunicationRequestMPI(UInt source, UInt dest);
~CommunicationRequestMPI();
MPI_Request * getMPIRequest() { return request; };
private:
MPI_Request * request;
};
/* -------------------------------------------------------------------------- */
/* Implementation */
/* -------------------------------------------------------------------------- */
CommunicationRequestMPI::CommunicationRequestMPI(UInt source, UInt dest)
: CommunicationRequest(source, dest) {
request = new MPI_Request;
}
/* -------------------------------------------------------------------------- */
CommunicationRequestMPI::~CommunicationRequestMPI() { delete request; }
/* -------------------------------------------------------------------------- */
StaticCommunicatorMPI::StaticCommunicatorMPI(int & argc, char **& argv)
: RealStaticCommunicator(argc, argv) {
int is_initialized = false;
MPI_Initialized(&is_initialized);
if (!is_initialized) {
MPI_Init(&argc, &argv);
}
this->is_externaly_initialized = is_initialized;
mpi_data = new MPITypeWrapper(*this);
mpi_data->setMPICommunicator(MPI_COMM_WORLD);
}
/* -------------------------------------------------------------------------- */
StaticCommunicatorMPI::~StaticCommunicatorMPI() {
if (!this->is_externaly_initialized) {
MPI_Finalize();
}
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::send(T * buffer, Int size, Int receiver, Int tag) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Send(buffer, size, type, receiver, tag, communicator);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Send.");
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::receive(T * buffer, Int size, Int sender, Int tag) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
MPI_Status status;
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Recv(buffer, size, type, sender, tag, communicator, &status);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Recv.");
}
/* -------------------------------------------------------------------------- */
template <typename T>
CommunicationRequest * StaticCommunicatorMPI::asyncSend(T * buffer, Int size,
Int receiver, Int tag) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
CommunicationRequestMPI * request =
new CommunicationRequestMPI(prank, receiver);
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Isend(buffer, size, type, receiver, tag, communicator,
request->getMPIRequest());
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Isend.");
return request;
}
/* -------------------------------------------------------------------------- */
template <typename T>
CommunicationRequest *
StaticCommunicatorMPI::asyncReceive(T * buffer, Int size, Int sender, Int tag) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
CommunicationRequestMPI * request =
new CommunicationRequestMPI(sender, prank);
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Irecv(buffer, size, type, sender, tag, communicator,
request->getMPIRequest());
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Irecv.");
return request;
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::probe(Int sender, Int tag,
CommunicationStatus & status) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
MPI_Status mpi_status;
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Probe(sender, tag, communicator, &mpi_status);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Probe.");
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
int count;
MPI_Get_count(&mpi_status, type, &count);
status.setSource(mpi_status.MPI_SOURCE);
status.setTag(mpi_status.MPI_TAG);
status.setSize(count);
}
/* -------------------------------------------------------------------------- */
bool StaticCommunicatorMPI::testRequest(CommunicationRequest * request) {
MPI_Status status;
int flag;
CommunicationRequestMPI * req_mpi =
static_cast<CommunicationRequestMPI *>(request);
MPI_Request * req = req_mpi->getMPIRequest();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Test(req, &flag, &status);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Test.");
return (flag != 0);
}
/* -------------------------------------------------------------------------- */
void StaticCommunicatorMPI::wait(CommunicationRequest * request) {
MPI_Status status;
CommunicationRequestMPI * req_mpi =
static_cast<CommunicationRequestMPI *>(request);
MPI_Request * req = req_mpi->getMPIRequest();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Wait(req, &status);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Wait.");
}
/* -------------------------------------------------------------------------- */
void StaticCommunicatorMPI::waitAll(
std::vector<CommunicationRequest *> & requests) {
MPI_Status status;
std::vector<CommunicationRequest *>::iterator it;
for (it = requests.begin(); it != requests.end(); ++it) {
MPI_Request * req =
static_cast<CommunicationRequestMPI *>(*it)->getMPIRequest();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Wait(req, &status);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Wait.");
}
}
/* -------------------------------------------------------------------------- */
void StaticCommunicatorMPI::barrier() {
MPI_Comm communicator = mpi_data->getMPICommunicator();
MPI_Barrier(communicator);
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::reduce(T * values, int nb_values,
const SynchronizerOperation & op, int root) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Reduce(MPI_IN_PLACE, values, nb_values, type,
MPITypeWrapper::getMPISynchronizerOperation(op), root,
communicator);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Allreduce.");
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::allReduce(T * values, int nb_values,
const SynchronizerOperation & op) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Allreduce(MPI_IN_PLACE, values, nb_values, type,
MPITypeWrapper::getMPISynchronizerOperation(op),
communicator);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Allreduce.");
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::allGather(T * values, int nb_values) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Allgather(MPI_IN_PLACE, nb_values, type, values, nb_values, type,
communicator);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Allgather.");
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::allGatherV(T * values, int * nb_values) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
int * displs = new int[psize];
displs[0] = 0;
for (int i = 1; i < psize; ++i) {
displs[i] = displs[i - 1] + nb_values[i - 1];
}
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Allgatherv(MPI_IN_PLACE, *nb_values, type, values, nb_values, displs,
type, communicator);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Gather.");
delete[] displs;
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::gather(T * values, int nb_values, int root) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
T * send_buf = NULL, * recv_buf = NULL;
if (prank == root) {
send_buf = (T *)MPI_IN_PLACE;
recv_buf = values;
} else {
send_buf = values;
}
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Gather(send_buf, nb_values, type, recv_buf, nb_values, type, root,
communicator);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Gather.");
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::gatherV(T * values, int * nb_values, int root) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
int * displs = NULL;
if (prank == root) {
displs = new int[psize];
displs[0] = 0;
for (int i = 1; i < psize; ++i) {
displs[i] = displs[i - 1] + nb_values[i - 1];
}
}
T * send_buf = NULL, * recv_buf = NULL;
if (prank == root) {
send_buf = (T *)MPI_IN_PLACE;
recv_buf = values;
} else
send_buf = values;
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Gatherv(send_buf, *nb_values, type, recv_buf, nb_values, displs, type,
root, communicator);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Gather.");
if (prank == root) {
delete[] displs;
}
}
/* -------------------------------------------------------------------------- */
template <typename T>
void StaticCommunicatorMPI::broadcast(T * values, int nb_values, int root) {
MPI_Comm communicator = mpi_data->getMPICommunicator();
MPI_Datatype type = MPITypeWrapper::getMPIDatatype<T>();
#if !defined(AKANTU_NDEBUG)
int ret =
#endif
MPI_Bcast(values, nb_values, type, root, communicator);
AKANTU_DEBUG_ASSERT(ret == MPI_SUCCESS, "Error in MPI_Gather.");
}
/* -------------------------------------------------------------------------- */
int StaticCommunicatorMPI::getMaxTag() { return MPI_TAG_UB; }
/* -------------------------------------------------------------------------- */
int StaticCommunicatorMPI::getMinTag() { return 0; }
/* -------------------------------------------------------------------------- */
// template<typename T>
// MPI_Datatype StaticCommunicatorMPI::getMPIDatatype() {
// return MPI_DATATYPE_NULL;
// }
template <> MPI_Datatype MPITypeWrapper::getMPIDatatype<char>() {
return MPI_CHAR;
}
template <> MPI_Datatype MPITypeWrapper::getMPIDatatype<float>() {
return MPI_FLOAT;
}
template <> MPI_Datatype MPITypeWrapper::getMPIDatatype<double>() {
return MPI_DOUBLE;
}
template <> MPI_Datatype MPITypeWrapper::getMPIDatatype<long double>() {
return MPI_LONG_DOUBLE;
}
template <> MPI_Datatype MPITypeWrapper::getMPIDatatype<signed int>() {
return MPI_INT;
}
template <> MPI_Datatype MPITypeWrapper::getMPIDatatype<unsigned int>() {
return MPI_UNSIGNED;
}
template <> MPI_Datatype MPITypeWrapper::getMPIDatatype<signed long int>() {
return MPI_LONG;
}
template <> MPI_Datatype MPITypeWrapper::getMPIDatatype<unsigned long int>() {
return MPI_UNSIGNED_LONG;
}
template <>
MPI_Datatype MPITypeWrapper::getMPIDatatype<signed long long int>() {
return MPI_LONG_LONG;
}
template <>
MPI_Datatype MPITypeWrapper::getMPIDatatype<unsigned long long int>() {
return MPI_UNSIGNED_LONG_LONG;
}
template <>
MPI_Datatype MPITypeWrapper::getMPIDatatype<SCMinMaxLoc<double, int> >() {
return MPI_DOUBLE_INT;
}
template <>
MPI_Datatype MPITypeWrapper::getMPIDatatype<SCMinMaxLoc<float, int> >() {
return MPI_FLOAT_INT;
}
/* -------------------------------------------------------------------------- */
/* Template instantiation */
/* -------------------------------------------------------------------------- */
#define AKANTU_MPI_COMM_INSTANTIATE(T) \
template void StaticCommunicatorMPI::send<T>(T * buffer, Int size, \
Int receiver, Int tag); \
template void StaticCommunicatorMPI::receive<T>(T * buffer, Int size, \
Int sender, Int tag); \
template CommunicationRequest * StaticCommunicatorMPI::asyncSend<T>( \
T * buffer, Int size, Int receiver, Int tag); \
template CommunicationRequest * StaticCommunicatorMPI::asyncReceive<T>( \
T * buffer, Int size, Int sender, Int tag); \
template void StaticCommunicatorMPI::probe<T>(Int sender, Int tag, \
CommunicationStatus & status); \
template void StaticCommunicatorMPI::allGather<T>(T * values, \
int nb_values); \
template void StaticCommunicatorMPI::allGatherV<T>(T * values, \
int * nb_values); \
template void StaticCommunicatorMPI::gather<T>(T * values, int nb_values, \
int root); \
template void StaticCommunicatorMPI::gatherV<T>(T * values, int * nb_values, \
int root); \
template void StaticCommunicatorMPI::broadcast<T>(T * values, int nb_values, \
int root); \
template void StaticCommunicatorMPI::allReduce<T>( \
T * values, int nb_values, const SynchronizerOperation & op)
AKANTU_MPI_COMM_INSTANTIATE(Real);
AKANTU_MPI_COMM_INSTANTIATE(UInt);
AKANTU_MPI_COMM_INSTANTIATE(Int);
AKANTU_MPI_COMM_INSTANTIATE(char);
template void StaticCommunicatorMPI::send<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * buffer, Int size, Int receiver, Int tag);
template void StaticCommunicatorMPI::receive<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * buffer, Int size, Int sender, Int tag);
template CommunicationRequest *
StaticCommunicatorMPI::asyncSend<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * buffer, Int size, Int receiver, Int tag);
template CommunicationRequest *
StaticCommunicatorMPI::asyncReceive<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * buffer, Int size, Int sender, Int tag);
template void StaticCommunicatorMPI::probe<SCMinMaxLoc<Real, int> >(
Int sender, Int tag, CommunicationStatus & status);
template void StaticCommunicatorMPI::allGather<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * values, int nb_values);
template void StaticCommunicatorMPI::allGatherV<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * values, int * nb_values);
template void StaticCommunicatorMPI::gather<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * values, int nb_values, int root);
template void StaticCommunicatorMPI::gatherV<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * values, int * nb_values, int root);
template void StaticCommunicatorMPI::broadcast<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * values, int nb_values, int root);
template void StaticCommunicatorMPI::allReduce<SCMinMaxLoc<Real, int> >(
SCMinMaxLoc<Real, int> * values, int nb_values,
const SynchronizerOperation & op);
#if AKANTU_INTEGER_SIZE > 4
AKANTU_MPI_COMM_INSTANTIATE(int);
#endif
__END_AKANTU__
c4science · Help