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various work on the Sparse module:

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* added some glue to Eigen/Core (SparseBit, ei_eval, Matrix)
* add two new sparse matrix types:
   HashMatrix: based on std::map (for random writes)
   LinkedVectorMatrix: array of linked vectors
   (for outer coherent writes, e.g. to transpose a matrix)
* add a SparseSetter class to easily set/update any kind of matrices, e.g.:
   { SparseSetter<MatrixType,RandomAccessPattern> wrapper(mymatrix);
     for (...) wrapper->coeffRef(rand(),rand()) = rand(); }
* automatic shallow copy for RValue
* and a lot of mess !
plus:
* remove the remaining ArrayBit related stuff
* don't use alloca in product for very large memory allocation
This commit is contained in:
Gael Guennebaud
2008-06-26 23:22:26 +00:00
parent c5bd1703cb
commit e5d301dc96
17 changed files with 1226 additions and 169 deletions
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102
Eigen/src/Sparse/SparseSetter.h Normal file
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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra. Eigen itself is part of the KDE project.
//
// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
//
// Eigen 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.
//
// Alternatively, you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Eigen 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 or the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.
#ifndef EIGEN_SPARSESETTER_H
#define EIGEN_SPARSESETTER_H
template<typename MatrixType, int AccessPattern,
int IsSupported = ei_support_access_pattern<MatrixType,AccessPattern>::ret>
struct ei_sparse_setter_selector;
template<typename MatrixType,
int AccessPattern,
typename WrapperType = typename ei_sparse_setter_selector<MatrixType,AccessPattern>::type>
class SparseSetter
{
typedef typename ei_unref<WrapperType>::type _WrapperType;
public:
inline SparseSetter(MatrixType& matrix) : m_wrapper(matrix), mp_matrix(&matrix) {}
~SparseSetter()
{ *mp_matrix = m_wrapper; }
inline _WrapperType* operator->() { return &m_wrapper; }
inline _WrapperType& operator*() { return m_wrapper; }
protected:
WrapperType m_wrapper;
MatrixType* mp_matrix;
};
template<typename MatrixType, int AccessPattern>
struct ei_sparse_setter_selector<MatrixType, AccessPattern, AccessPatternSupported>
{
typedef MatrixType& type;
};
// forward each derived of SparseMatrixBase to the generic SparseMatrixBase specializations
template<typename Scalar, int Flags, int AccessPattern>
struct ei_sparse_setter_selector<SparseMatrix<Scalar,Flags>, AccessPattern, AccessPatternNotSupported>
: public ei_sparse_setter_selector<SparseMatrixBase<SparseMatrix<Scalar,Flags> >,AccessPattern, AccessPatternNotSupported>
{};
template<typename Scalar, int Flags, int AccessPattern>
struct ei_sparse_setter_selector<LinkedVectorMatrix<Scalar,Flags>, AccessPattern, AccessPatternNotSupported>
: public ei_sparse_setter_selector<LinkedVectorMatrix<SparseMatrix<Scalar,Flags> >,AccessPattern, AccessPatternNotSupported>
{};
template<typename Scalar, int Flags, int AccessPattern>
struct ei_sparse_setter_selector<HashMatrix<Scalar,Flags>, AccessPattern, AccessPatternNotSupported>
: public ei_sparse_setter_selector<HashMatrix<SparseMatrix<Scalar,Flags> >,AccessPattern, AccessPatternNotSupported>
{};
// generic SparseMatrixBase specializations
template<typename Derived>
struct ei_sparse_setter_selector<SparseMatrixBase<Derived>, RandomAccessPattern, AccessPatternNotSupported>
{
typedef HashMatrix<typename Derived::Scalar, Derived::Flags> type;
};
template<typename Derived>
struct ei_sparse_setter_selector<SparseMatrixBase<Derived>, OuterCoherentAccessPattern, AccessPatternNotSupported>
{
typedef HashMatrix<typename Derived::Scalar, Derived::Flags> type;
};
template<typename Derived>
struct ei_sparse_setter_selector<SparseMatrixBase<Derived>, InnerCoherentAccessPattern, AccessPatternNotSupported>
{
typedef LinkedVectorMatrix<typename Derived::Scalar, Derived::Flags> type;
};
template<typename Derived>
struct ei_sparse_setter_selector<SparseMatrixBase<Derived>, FullyCoherentAccessPattern, AccessPatternNotSupported>
{
typedef SparseMatrix<typename Derived::Scalar, Derived::Flags> type;
};
#endif // EIGEN_SPARSESETTER_H