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/*
* Copyright 2008-2009 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*! \file rcm.h
* \brief Reverse Cuthill-Mckee of a sparse matrix
*/
#pragma once
#include <cusp/detail/config.h>
namespace cusp
{
namespace graph
{
/*! \addtogroup algorithms Algorithms
* \ingroup algorithms
* \{
*/
/*! \p rcm : Performs a reordering on a graph represented by a symmetric sparse
* adjacency matrix in order to decrease the bandwidth. The reordering is computed
* using the Cuthill-McKee algorithm and reversing the resulting index numbers.
*
* \param A symmetric matrix that represents a graph
*
* \tparam Matrix matrix
*
* \see http://en.wikipedia.org/wiki/Cuthill-McKee_algorithm
*/
template<typename MatrixType>
void symmetric_rcm(MatrixType& G);
template<typename MatrixType, typename ArrayType>
void symmetric_rcm(MatrixType& G, ArrayType& permutation);
/*! \}
*/
} // end namespace graph
} // end namespace cusp
#include <cusp/graph/detail/symmetric_rcm.inl>
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