-// Copyright (C) 2007-2019 CEA/DEN, EDF R&D
+// Copyright (C) 2007-2020 CEA/DEN, EDF R&D
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
namespace MEDCoupling
{
- /*! \anchor CommInterface-det
- \class CommInterface
+ MPI_Datatype ParaTraits<double>::MPIDataType = MPI_DOUBLE;
- The class \a CommInterface is the gateway to the MPI library.
- It is a wrapper around all MPI calls, thus trying to abstract the rest of the code from using the direct MPI API
- (but this is not strictly respected overall in practice ...). It is used in all
- the \ref parallel "DEC related classes".
+ MPI_Datatype ParaTraits<Int32>::MPIDataType = MPI_INT;
- It is typically instantiated after the MPI_Init() call in a program and is afterwards passed as a
- parameter to the constructors of various \ref parallel "parallel objects" so that they access the
- MPI library via this common interface.
+ MPI_Datatype ParaTraits<Int64>::MPIDataType = MPI_LONG;
- As an example, the following code excerpt initializes a processor group made of the zero processor.
-
- \verbatim
- #include "CommInterface.hxx"
- #include "ProcessorGroup.hxx"
+ void CommInterface::gatherArrays(MPI_Comm comm, int root, const DataArrayIdType *array, std::vector< MCAuto<DataArrayIdType> >& arraysOut) const
+ {
+ this->gatherArraysT2<mcIdType>(comm,root,array,arraysOut);
+ }
- int main(int argc, char** argv)
- {
- //initialization
- MPI_Init(&argc, &argv);
- MEDCoupling::CommInterface comm_interface;
+ /*!
+ * Generalized AllGather collective communication.
+ * This method send input \a array to all procs.
+ */
+ void CommInterface::allGatherArrays(MPI_Comm comm, const DataArrayIdType *array, std::vector< MCAuto<DataArrayIdType> >& arraysOut) const
+ {
+ this->allGatherArraysT2<mcIdType>(comm,array,arraysOut);
+ }
- //setting up a processor group with proc 0
- set<int> procs;
- procs.insert(0);
- MEDCoupling::ProcessorGroup group(procs, comm_interface);
+ /*!
+ * Generalized AllGather collective communication.
+ * This method send input \a array to all procs.
+ */
+ int CommInterface::allGatherArrays(MPI_Comm comm, const DataArrayIdType *array, std::unique_ptr<mcIdType[]>& result, std::unique_ptr<mcIdType[]>& resultIndex) const
+ {
+ return this->allGatherArraysT<mcIdType>(comm,array,result,resultIndex);
+ }
- //cleanup
- MPI_Finalize();
- }
- \endverbatim
- */
+ void CommInterface::allToAllArrays(MPI_Comm comm, const std::vector< MCAuto<DataArrayDouble> >& arrays, std::vector< MCAuto<DataArrayDouble> >& arraysOut) const
+ {
+ this->allToAllArraysT<double>(comm,arrays,arraysOut);
+ }
- CommInterface::CommInterface()
+ void CommInterface::allToAllArrays(MPI_Comm comm, const std::vector< MCAuto<DataArrayDouble> >& arrays, MCAuto<DataArrayDouble>& arraysOut) const
{
+ std::unique_ptr<mcIdType[]> notUsed1;
+ mcIdType notUsed2;
+ this->allToAllArraysT2<double>(comm,arrays,arraysOut,notUsed1,notUsed2);
}
- CommInterface::~CommInterface()
+ /*!
+ * Generalized AllToAll collective communication.
+ */
+ void CommInterface::allToAllArrays(MPI_Comm comm, const std::vector< MCAuto<DataArrayIdType> >& arrays, std::vector< MCAuto<DataArrayIdType> >& arraysOut) const
{
+ this->allToAllArraysT<mcIdType>(comm,arrays,arraysOut);
}
+
}