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/*
Copyright 2018 Statoil ASA
This file is part of the Open Porous Media project (OPM).
OPM is free software: 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 3 of the License, or
(at your option) any later version.
OPM 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with OPM. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#define BOOST_TEST_MODULE MultMatrixTransposed
#include <boost/test/unit_test.hpp>
#include <opm/simulators/linalg/SmallDenseMatrixUtils.hpp>
#include <dune/common/fmatrix.hh>
using namespace Dune;
using namespace Opm::detail;
BOOST_AUTO_TEST_CASE(testmultmatrixtrans)
{
using Scalar = FieldMatrix<double,1,1>;
Scalar a1 = {{ 4 }}, b1 = {{ 2 }}, res1 = {{}}, resExpect1 = {{ 8 }};
multMatrixTransposed(a1, b1, res1);
BOOST_CHECK_EQUAL(res1, resExpect1);
using Mat2 = FieldMatrix<double,2,2>;
Mat2 a2 = {{ 1, 2 }, { 3, 4} }, b2 = {{ 3, 4 }, { 5, 6} };
// resulting matrix filled with temporay values to avoid initialization error
// from dune 2.4.1
Mat2 res2 = {{0, 0}, {0, 0}};
Mat2 resExpect2 = {{ 18, 22 }, {26, 32} };
multMatrixTransposed(a2, b2, res2);
BOOST_CHECK_EQUAL(res2, resExpect2);
using Mat3 = FieldMatrix<double,3,3>;
Mat3 a3 = {{ 1, 2, 3 }, { 3, 4, 5}, {6, 7, 8} };
Mat3 b3 = {{ 3, 4, 5 }, { 5, 6, 7}, {7, 8, 9} };
// resulting matrix filled with temporay values to avoid initialization error
// from dune 2.4.1
Mat3 res3 = {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}};
Mat3 resExpect3 = {{ 60, 70, 80 }, {75, 88, 101}, { 90, 106, 122 } };
multMatrixTransposed(a3, b3, res3);
BOOST_CHECK_EQUAL(res3, resExpect3);
}
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