/usr/include/dolfin/la/uBLASDummyPreconditioner.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 | // Copyright (C) 2006 Anders Logg
//
// 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/>.
//
// First added: 2006-07-04
// Last changed: 2006-07-04
#ifndef __UBLAS_DUMMY_PRECONDITIONER_H
#define __UBLAS_DUMMY_PRECONDITIONER_H
#include "uBLASPreconditioner.h"
namespace dolfin
{
/// This class provides a dummy (do nothing) preconditioner for the
/// uBLAS Krylov solver.
class uBLASDummyPreconditioner : public uBLASPreconditioner
{
public:
/// Constructor
uBLASDummyPreconditioner();
/// Destructor
~uBLASDummyPreconditioner();
/// Initialise preconditioner (dense matrix)
void init(const uBLASMatrix<ublas_sparse_matrix>& A) {};
/// Initialise preconditioner (virtual matrix)
void init(const uBLASKrylovMatrix& A) {};
/// Solve linear system Ax = b approximately
void solve(uBLASVector& x, const uBLASVector& b) const;
};
}
#endif
|