/usr/include/dolfin/la/LinearAlgebraFactory.h is in libdolfin1.0-dev 1.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | // Copyright (C) 2007 Ola Skavhaug
//
// This file is part of DOLFIN.
//
// DOLFIN is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// Modified by Anders Logg 2011
//
// First added: 2007-11-30
// Last changed: 2011-10-19
#ifndef __LINEAR_ALGEBRA_FACTORY_H
#define __LINEAR_ALGEBRA_FACTORY_H
#include <vector>
#include <string>
namespace dolfin
{
class GenericLinearSolver;
class GenericMatrix;
class GenericSparsityPattern;
class GenericVector;
class LinearAlgebraFactory
{
public:
/// Constructor
LinearAlgebraFactory() {}
/// Destructor
virtual ~LinearAlgebraFactory() {}
/// Create empty matrix
virtual GenericMatrix* create_matrix() const = 0;
/// Create empty vector (global)
virtual GenericVector* create_vector() const = 0;
/// Create empty vector (local)
virtual GenericVector* create_local_vector() const = 0;
/// Create empty sparsity pattern (returning zero if not used/needed)
virtual GenericSparsityPattern* create_pattern() const = 0;
/// Create LU solver
virtual GenericLinearSolver* create_lu_solver(std::string method) const = 0;
/// Create Krylov solver
virtual GenericLinearSolver* create_krylov_solver(std::string method,
std::string preconditioner) const = 0;
/// Return a list of available LU solver methods.
/// This function should be overloaded by subclass if non-empty.
virtual std::vector<std::pair<std::string, std::string> >
lu_solver_methods() const
{
std::vector<std::pair<std::string, std::string> > methods;
return methods;
}
/// Return a list of available Krylov solver methods.
/// This function should be overloaded by subclass if non-empty.
virtual std::vector<std::pair<std::string, std::string> >
krylov_solver_methods() const
{
std::vector<std::pair<std::string, std::string> > methods;
return methods;
}
/// Return a list of available preconditioners.
/// This function should be overloaded by subclass if non-empty.
virtual std::vector<std::pair<std::string, std::string> >
krylov_solver_preconditioners() const
{
std::vector<std::pair<std::string, std::string> > preconditioners;
return preconditioners;
}
};
}
#endif
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