/usr/include/dolfin/la/PETScBaseMatrix.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 98 99 100 101 | // Copyright (C) 2005-2006 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/>.
//
// Modified by Fredrik Valdmanis, 2011
//
// First added: 2005-01-17
// Last changed: 2011-09-07
#ifndef __PETSC_BASE_MATRIX_H
#define __PETSC_BASE_MATRIX_H
#ifdef HAS_PETSC
#include <string>
#include <utility>
#include <boost/shared_ptr.hpp>
#include <petscmat.h>
#include <dolfin/common/types.h>
#include <dolfin/common/Variable.h>
#include "PETScObject.h"
namespace dolfin
{
class PETScMatrixDeleter
{
public:
void operator() (Mat* A)
{
if (*A)
#if PETSC_VERSION_MAJOR == 3 && PETSC_VERSION_MINOR <= 1
MatDestroy(*A);
#else
MatDestroy(A);
#endif
delete A;
}
};
class GenericVector;
/// This class is a base class for matrices that can be used in
/// PETScKrylovSolver.
class PETScBaseMatrix : public PETScObject, public virtual Variable
{
public:
/// Constructor
PETScBaseMatrix() {}
/// Constructor
PETScBaseMatrix(boost::shared_ptr<Mat> A) : A(A) {}
/// Resize virtual matrix
virtual void resize(uint m, uint n) = 0;
/// Return number of rows (dim = 0) or columns (dim = 1)
uint size(uint dim) const;
/// Return local range along dimension dim
std::pair<uint, uint> local_range(uint dim) const;
/// Resize vector y such that is it compatible with matrix for
/// multuplication Ax = b (dim = 0 -> b, dim = 1 -> x) In parallel
/// case, size and layout are important.
void resize(GenericVector& y, uint dim) const;
/// Return PETSc Mat pointer
boost::shared_ptr<Mat> mat() const
{ return A; }
/// Return informal string representation (pretty-print)
virtual std::string str(bool verbose) const = 0;
protected:
// PETSc Mat pointer
boost::shared_ptr<Mat> A;
};
}
#endif
#endif
|