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1  // This file is part of Eigen, a lightweight C++ template library
2  // for linear algebra.
3  //
4  // Copyright (C) 2012 Giacomo Po <gpo@ucla.edu>
5  // Copyright (C) 2011 Gael Guennebaud <g.gael@free.fr>
6  //
7  // This Source Code Form is subject to the terms of the Mozilla
8  // Public License v. 2.0. If a copy of the MPL was not distributed
9  // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
10  #include <cmath>
11  
12  #include "../../test/sparse_solver.h"
13  #include <Eigen/IterativeSolvers>
14  
test_minres_T()15  template<typename T> void test_minres_T()
16  {
17    // Identity preconditioner
18    MINRES<SparseMatrix<T>, Lower, IdentityPreconditioner    > minres_colmajor_lower_I;
19    MINRES<SparseMatrix<T>, Upper, IdentityPreconditioner    > minres_colmajor_upper_I;
20  
21    // Diagonal preconditioner
22    MINRES<SparseMatrix<T>, Lower, DiagonalPreconditioner<T> > minres_colmajor_lower_diag;
23    MINRES<SparseMatrix<T>, Upper, DiagonalPreconditioner<T> > minres_colmajor_upper_diag;
24    MINRES<SparseMatrix<T>, Lower|Upper, DiagonalPreconditioner<T> > minres_colmajor_uplo_diag;
25  
26    // call tests for SPD matrix
27    CALL_SUBTEST( check_sparse_spd_solving(minres_colmajor_lower_I) );
28    CALL_SUBTEST( check_sparse_spd_solving(minres_colmajor_upper_I) );
29  
30    CALL_SUBTEST( check_sparse_spd_solving(minres_colmajor_lower_diag)  );
31    CALL_SUBTEST( check_sparse_spd_solving(minres_colmajor_upper_diag)  );
32    CALL_SUBTEST( check_sparse_spd_solving(minres_colmajor_uplo_diag)  );
33  
34    // TO DO: symmetric semi-definite matrix
35    // TO DO: symmetric indefinite matrix
36  
37  }
38  
test_minres()39  void test_minres()
40  {
41    CALL_SUBTEST_1(test_minres_T<double>());
42  //  CALL_SUBTEST_2(test_minres_T<std::compex<double> >());
43  
44  }
45