72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/*
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* Copyright © 2004-2011 Ondra Kamenik
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* Copyright © 2019 Dynare Team
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*
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* This file is part of Dynare.
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*
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* Dynare is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dynare is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Dynare. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef BLOCK_DIAGONAL_H
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#define BLOCK_DIAGONAL_H
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#include <memory>
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#include <vector>
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#include "QuasiTriangular.hh"
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class BlockDiagonal : public QuasiTriangular
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{
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std::vector<int> row_len, col_len;
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public:
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BlockDiagonal(ConstVector d, int d_size);
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BlockDiagonal(const BlockDiagonal &b) = default;
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explicit BlockDiagonal(const QuasiTriangular &t);
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BlockDiagonal &operator=(const QuasiTriangular &t)
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{
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GeneralMatrix::operator=(t);
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return *this;
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}
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BlockDiagonal &operator=(const BlockDiagonal &b) = default;
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~BlockDiagonal() override = default;
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void setZeroBlockEdge(diag_iter edge);
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int getNumZeros() const;
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int getNumBlocks() const;
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int getLargestBlock() const;
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void printInfo() const;
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void multKron(KronVector &x) const override;
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void multKronTrans(KronVector &x) const override;
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const_col_iter col_begin(const DiagonalBlock &b) const override;
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col_iter col_begin(const DiagonalBlock &b) override;
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const_row_iter row_end(const DiagonalBlock &b) const override;
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row_iter row_end(const DiagonalBlock &b) override;
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std::unique_ptr<QuasiTriangular>
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clone() const override
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{
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return std::make_unique<BlockDiagonal>(*this);
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}
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private:
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void setZerosToRU(diag_iter edge);
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const_diag_iter findBlockStart(const_diag_iter from) const;
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static void savePartOfX(int si, int ei, const KronVector &x, Vector &work);
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void multKronBlock(const_diag_iter start, const_diag_iter end,
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KronVector &x, Vector &work) const;
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void multKronBlockTrans(const_diag_iter start, const_diag_iter end,
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KronVector &x, Vector &work) const;
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};
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#endif /* BLOCK_DIAGONAL_H */
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