Tpetra_Details_unpackCrsGraphAndCombine_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_UNPACKCRSGRAPHANDCOMBINE_DECL_HPP
#define TPETRA_DETAILS_UNPACKCRSGRAPHANDCOMBINE_DECL_HPP

#include "TpetraCore_config.h"
#include "Tpetra_CombineMode.hpp"
#include "Kokkos_DualView.hpp"
#include "Tpetra_DistObject_decl.hpp"
#include "Tpetra_CrsGraph_fwd.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 <class LO, class GO, class NT>
size_t
unpackAndCombineWithOwningPIDsCount(
    const CrsGraph<LO, GO, NT>& sourceGraph,
    const Teuchos::ArrayView<const LO>& importLIDs,
    const Teuchos::ArrayView<const typename CrsGraph<LO, GO, NT>::packet_type>& imports,
    const Teuchos::ArrayView<const size_t>& numPacketsPerLID,
    size_t constantNumPackets,
    CombineMode combineMode,
    size_t numSameIDs,
    const Teuchos::ArrayView<const LO>& permuteToLIDs,
    const Teuchos::ArrayView<const LO>& permuteFromLIDs);

template <class LO, class GO, class NT>
void unpackAndCombineIntoCrsArrays(
    const CrsGraph<LO, GO, NT>& sourceGraph,
    const Teuchos::ArrayView<const LO>& importLIDs,
    const Teuchos::ArrayView<const typename CrsGraph<LO, GO, NT>::packet_type>& imports,
    const Teuchos::ArrayView<const size_t>& numPacketsPerLID,
    const size_t constantNumPackets,
    const CombineMode combineMode,
    const size_t numSameIDs,
    const Teuchos::ArrayView<const LO>& permuteToLIDs,
    const Teuchos::ArrayView<const LO>& permuteFromLIDs,
    size_t TargetNumRows,
    size_t TargetNumNonzeros,
    const int MyTargetPID,
    const Teuchos::ArrayView<size_t>& CRS_rowptr,
    const Teuchos::ArrayView<GO>& CRS_colind,
    const Teuchos::ArrayView<const int>& SourcePids,
    Teuchos::Array<int>& TargetPids);

}  // namespace Details
}  // namespace Tpetra

#endif  // TPETRA_DETAILS_UNPACKCRSGRAPHANDCOMBINE_DECL_HPP