eigen/test/bicgstab.cpp

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2011 Gael Guennebaud <g.gael@free.fr>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

#include "sparse_solver.h"
#include <Eigen/IterativeLinearSolvers>

template <typename T, typename I_>
void test_bicgstab_T() {
  BiCGSTAB<SparseMatrix<T, 0, I_>, DiagonalPreconditioner<T> > bicgstab_colmajor_diag;
  BiCGSTAB<SparseMatrix<T, 0, I_>, IdentityPreconditioner> bicgstab_colmajor_I;
  BiCGSTAB<SparseMatrix<T, 0, I_>, IncompleteLUT<T, I_> > bicgstab_colmajor_ilut;
  // BiCGSTAB<SparseMatrix<T>, SSORPreconditioner<T> >     bicgstab_colmajor_ssor;

  bicgstab_colmajor_diag.setTolerance(NumTraits<T>::epsilon() * 4);
  bicgstab_colmajor_ilut.setTolerance(NumTraits<T>::epsilon() * 4);

  CALL_SUBTEST(check_sparse_square_solving(bicgstab_colmajor_diag));
  //   CALL_SUBTEST( check_sparse_square_solving(bicgstab_colmajor_I)     );
  CALL_SUBTEST(check_sparse_square_solving(bicgstab_colmajor_ilut));
  // CALL_SUBTEST( check_sparse_square_solving(bicgstab_colmajor_ssor)     );
}

EIGEN_DECLARE_TEST(bicgstab) {
  CALL_SUBTEST_1((test_bicgstab_T<double, int>()));
  CALL_SUBTEST_2((test_bicgstab_T<std::complex<double>, int>()));
  CALL_SUBTEST_3((test_bicgstab_T<double, long int>()));
}