Tpetra_Details_unpackCrsMatrixAndCombine_decl.hpp

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// @HEADER
// *****************************************************************************
//          Tpetra: Templated Linear Algebra Services Package
//
// Copyright 2008 NTESS and the Tpetra contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef TPETRA_DETAILS_UNPACKCRSMATRIXANDCOMBINE_DECL_HPP
#define TPETRA_DETAILS_UNPACKCRSMATRIXANDCOMBINE_DECL_HPP

#include "TpetraCore_config.h"
#include "Tpetra_CombineMode.hpp"
#include "Kokkos_DualView.hpp"
#include "Tpetra_CrsMatrix_fwd.hpp"
#include "Tpetra_DistObject_decl.hpp"
#include "Tpetra_Details_DefaultTypes.hpp"


#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Teuchos {
// Forward declaration of Array
template<class T> class Array;
// Forward declaration of ArrayView
template<class T> class ArrayView;
} // namespace Teuchos
#endif // DOXYGEN_SHOULD_SKIP_THIS

namespace Tpetra {

//
// Users must never rely on anything in the Details namespace.
//
namespace Details {

template<typename ST, typename LO, typename GO, typename NT>
void
unpackCrsMatrixAndCombine (const CrsMatrix<ST, LO, GO, NT>& sourceMatrix,
                           const Teuchos::ArrayView<const char>& imports,
                           const Teuchos::ArrayView<const size_t>& numPacketsPerLID,
                           const Teuchos::ArrayView<const LO>& importLIDs,
                           size_t constantNumPackets,
                           CombineMode combineMode);

template<typename ST, typename LO, typename GO, typename NT>
void
unpackCrsMatrixAndCombineNew(
  const CrsMatrix<ST, LO, GO, NT>& sourceMatrix,
  Kokkos::DualView<char*,
    typename DistObject<char, LO, GO, NT>::buffer_device_type> imports,
  Kokkos::DualView<size_t*,
    typename DistObject<char, LO, GO, NT>::buffer_device_type> numPacketsPerLID,
  const Kokkos::DualView<const LO*,
    typename DistObject<char, LO, GO, NT>::buffer_device_type>& importLIDs,
  const size_t constantNumPackets,
  const CombineMode combineMode);

//
template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
size_t
unpackAndCombineWithOwningPIDsCount (
    const CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> & sourceMatrix,
    const Teuchos::ArrayView<const LocalOrdinal> &importLIDs,
    const Teuchos::ArrayView<const char> &imports,
    const Teuchos::ArrayView<const size_t>& numPacketsPerLID,
    size_t constantNumPackets,
    CombineMode combineMode,
    size_t numSameIDs,
    const Teuchos::ArrayView<const LocalOrdinal>& permuteToLIDs,
    const Teuchos::ArrayView<const LocalOrdinal>& permuteFromLIDs);


template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void
unpackAndCombineIntoCrsArrays (
    const CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> & sourceMatrix,
    const Kokkos::View<LocalOrdinal const *, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>,
          void, void>,
    const Kokkos::View<const char*, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>
          ,void, void >,
    const Kokkos::View<const size_t*, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>
          ,void, void >,
    const size_t numSameIDs,
    const Kokkos::View<LocalOrdinal const *, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>,
          void, void>,
    const Kokkos::View<LocalOrdinal const *, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>,
          void, void>,
    size_t TargetNumRows,
    const int MyTargetPID,
    Teuchos::ArrayRCP<size_t>& CRS_rowptr,
    Teuchos::ArrayRCP<GlobalOrdinal>& CRS_colind,
    Teuchos::ArrayRCP<Scalar>& CRS_vals,
    const Teuchos::ArrayView<const int>& SourcePids,
    Teuchos::Array<int>& TargetPids);

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void
unpackAndCombineIntoCrsArrays (
    const CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> & sourceMatrix,
    const Kokkos::View<LocalOrdinal const *, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>,
          void, void>,
    const Kokkos::View<const char*, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>
          ,void, void >,
    const Kokkos::View<const size_t*, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>
          ,void, void >,
    const size_t numSameIDs,
    const Kokkos::View<LocalOrdinal const *, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>,
          void, void>,
    const Kokkos::View<LocalOrdinal const *, 
          Kokkos::Device<typename Node::device_type::execution_space,
                         Tpetra::Details::DefaultTypes::comm_buffer_memory_space<typename Node::device_type>>,
          void, void>,
    size_t TargetNumRows,
    const int MyTargetPID,
    Kokkos::View<size_t*,typename Node::device_type>& /*crs_rowptr_d*/,
    Kokkos::View<GlobalOrdinal*,typename Node::device_type>&     /*crs_colind_d*/,
    Kokkos::View<typename CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node>::impl_scalar_type*,typename Node::device_type>& /*crs_vals_d*/,
    const Teuchos::ArrayView<const int>& SourcePids,
    Kokkos::View<int*,typename Node::device_type>& /*TargetPids*/);

} // namespace Details
} // namespace Tpetra

#endif // TPETRA_DETAILS_UNPACKCRSMATRIXANDCOMBINE_DECL_HPP