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187 lines
7.3 KiB
187 lines
7.3 KiB
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2011 Gael Guennebaud <gael.guennebaud@inria.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#include "sparse.h"
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template<int OtherStorage, typename SparseMatrixType> void sparse_permutations(const SparseMatrixType& ref)
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{
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typedef typename SparseMatrixType::Index Index;
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const Index rows = ref.rows();
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const Index cols = ref.cols();
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typedef typename SparseMatrixType::Scalar Scalar;
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typedef typename SparseMatrixType::Index Index;
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typedef SparseMatrix<Scalar, OtherStorage, Index> OtherSparseMatrixType;
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typedef Matrix<Scalar,Dynamic,Dynamic> DenseMatrix;
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typedef Matrix<Index,Dynamic,1> VectorI;
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double density = (std::max)(8./(rows*cols), 0.01);
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SparseMatrixType mat(rows, cols), up(rows,cols), lo(rows,cols);
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OtherSparseMatrixType res;
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DenseMatrix mat_d = DenseMatrix::Zero(rows, cols), up_sym_d, lo_sym_d, res_d;
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initSparse<Scalar>(density, mat_d, mat, 0);
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up = mat.template triangularView<Upper>();
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lo = mat.template triangularView<Lower>();
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up_sym_d = mat_d.template selfadjointView<Upper>();
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lo_sym_d = mat_d.template selfadjointView<Lower>();
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VERIFY_IS_APPROX(mat, mat_d);
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VERIFY_IS_APPROX(up, DenseMatrix(mat_d.template triangularView<Upper>()));
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VERIFY_IS_APPROX(lo, DenseMatrix(mat_d.template triangularView<Lower>()));
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PermutationMatrix<Dynamic> p, p_null;
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VectorI pi;
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randomPermutationVector(pi, cols);
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p.indices() = pi;
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res = mat*p;
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res_d = mat_d*p;
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VERIFY(res.isApprox(res_d) && "mat*p");
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res = p*mat;
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res_d = p*mat_d;
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VERIFY(res.isApprox(res_d) && "p*mat");
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res = mat*p.inverse();
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res_d = mat*p.inverse();
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VERIFY(res.isApprox(res_d) && "mat*inv(p)");
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res = p.inverse()*mat;
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res_d = p.inverse()*mat_d;
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VERIFY(res.isApprox(res_d) && "inv(p)*mat");
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res = mat.twistedBy(p);
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res_d = (p * mat_d) * p.inverse();
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VERIFY(res.isApprox(res_d) && "p*mat*inv(p)");
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res = mat.template selfadjointView<Upper>().twistedBy(p_null);
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res_d = up_sym_d;
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VERIFY(res.isApprox(res_d) && "full selfadjoint upper to full");
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res = mat.template selfadjointView<Lower>().twistedBy(p_null);
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res_d = lo_sym_d;
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VERIFY(res.isApprox(res_d) && "full selfadjoint lower to full");
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res = up.template selfadjointView<Upper>().twistedBy(p_null);
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res_d = up_sym_d;
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VERIFY(res.isApprox(res_d) && "upper selfadjoint to full");
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res = lo.template selfadjointView<Lower>().twistedBy(p_null);
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res_d = lo_sym_d;
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VERIFY(res.isApprox(res_d) && "lower selfadjoint full");
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res = mat.template selfadjointView<Upper>();
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res_d = up_sym_d;
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VERIFY(res.isApprox(res_d) && "full selfadjoint upper to full");
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res = mat.template selfadjointView<Lower>();
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res_d = lo_sym_d;
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VERIFY(res.isApprox(res_d) && "full selfadjoint lower to full");
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res = up.template selfadjointView<Upper>();
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res_d = up_sym_d;
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VERIFY(res.isApprox(res_d) && "upper selfadjoint to full");
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res = lo.template selfadjointView<Lower>();
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res_d = lo_sym_d;
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VERIFY(res.isApprox(res_d) && "lower selfadjoint full");
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res.template selfadjointView<Upper>() = mat.template selfadjointView<Upper>();
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res_d = up_sym_d.template triangularView<Upper>();
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VERIFY(res.isApprox(res_d) && "full selfadjoint upper to upper");
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res.template selfadjointView<Lower>() = mat.template selfadjointView<Upper>();
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res_d = up_sym_d.template triangularView<Lower>();
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VERIFY(res.isApprox(res_d) && "full selfadjoint upper to lower");
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res.template selfadjointView<Upper>() = mat.template selfadjointView<Lower>();
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res_d = lo_sym_d.template triangularView<Upper>();
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VERIFY(res.isApprox(res_d) && "full selfadjoint lower to upper");
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res.template selfadjointView<Lower>() = mat.template selfadjointView<Lower>();
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res_d = lo_sym_d.template triangularView<Lower>();
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VERIFY(res.isApprox(res_d) && "full selfadjoint lower to lower");
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res.template selfadjointView<Upper>() = mat.template selfadjointView<Upper>().twistedBy(p);
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res_d = ((p * up_sym_d) * p.inverse()).eval().template triangularView<Upper>();
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VERIFY(res.isApprox(res_d) && "full selfadjoint upper twisted to upper");
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res.template selfadjointView<Upper>() = mat.template selfadjointView<Lower>().twistedBy(p);
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res_d = ((p * lo_sym_d) * p.inverse()).eval().template triangularView<Upper>();
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VERIFY(res.isApprox(res_d) && "full selfadjoint lower twisted to upper");
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res.template selfadjointView<Lower>() = mat.template selfadjointView<Lower>().twistedBy(p);
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res_d = ((p * lo_sym_d) * p.inverse()).eval().template triangularView<Lower>();
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VERIFY(res.isApprox(res_d) && "full selfadjoint lower twisted to lower");
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res.template selfadjointView<Lower>() = mat.template selfadjointView<Upper>().twistedBy(p);
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res_d = ((p * up_sym_d) * p.inverse()).eval().template triangularView<Lower>();
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VERIFY(res.isApprox(res_d) && "full selfadjoint upper twisted to lower");
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res.template selfadjointView<Upper>() = up.template selfadjointView<Upper>().twistedBy(p);
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res_d = ((p * up_sym_d) * p.inverse()).eval().template triangularView<Upper>();
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VERIFY(res.isApprox(res_d) && "upper selfadjoint twisted to upper");
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res.template selfadjointView<Upper>() = lo.template selfadjointView<Lower>().twistedBy(p);
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res_d = ((p * lo_sym_d) * p.inverse()).eval().template triangularView<Upper>();
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VERIFY(res.isApprox(res_d) && "lower selfadjoint twisted to upper");
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res.template selfadjointView<Lower>() = lo.template selfadjointView<Lower>().twistedBy(p);
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res_d = ((p * lo_sym_d) * p.inverse()).eval().template triangularView<Lower>();
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VERIFY(res.isApprox(res_d) && "lower selfadjoint twisted to lower");
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res.template selfadjointView<Lower>() = up.template selfadjointView<Upper>().twistedBy(p);
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res_d = ((p * up_sym_d) * p.inverse()).eval().template triangularView<Lower>();
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VERIFY(res.isApprox(res_d) && "upper selfadjoint twisted to lower");
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res = mat.template selfadjointView<Upper>().twistedBy(p);
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res_d = (p * up_sym_d) * p.inverse();
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VERIFY(res.isApprox(res_d) && "full selfadjoint upper twisted to full");
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res = mat.template selfadjointView<Lower>().twistedBy(p);
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res_d = (p * lo_sym_d) * p.inverse();
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VERIFY(res.isApprox(res_d) && "full selfadjoint lower twisted to full");
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res = up.template selfadjointView<Upper>().twistedBy(p);
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res_d = (p * up_sym_d) * p.inverse();
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VERIFY(res.isApprox(res_d) && "upper selfadjoint twisted to full");
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res = lo.template selfadjointView<Lower>().twistedBy(p);
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res_d = (p * lo_sym_d) * p.inverse();
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VERIFY(res.isApprox(res_d) && "lower selfadjoint twisted to full");
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}
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template<typename Scalar> void sparse_permutations_all(int size)
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{
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CALL_SUBTEST(( sparse_permutations<ColMajor>(SparseMatrix<Scalar, ColMajor>(size,size)) ));
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CALL_SUBTEST(( sparse_permutations<ColMajor>(SparseMatrix<Scalar, RowMajor>(size,size)) ));
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CALL_SUBTEST(( sparse_permutations<RowMajor>(SparseMatrix<Scalar, ColMajor>(size,size)) ));
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CALL_SUBTEST(( sparse_permutations<RowMajor>(SparseMatrix<Scalar, RowMajor>(size,size)) ));
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}
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void test_sparse_permutations()
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{
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for(int i = 0; i < g_repeat; i++) {
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int s = Eigen::internal::random<int>(1,50);
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CALL_SUBTEST_1(( sparse_permutations_all<double>(s) ));
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CALL_SUBTEST_2(( sparse_permutations_all<std::complex<double> >(s) ));
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}
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}
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