/usr/include/trilinos/Galeri_Stretched2D.h is in libtrilinos-galeri-dev 12.4.2-2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | // @HEADER
// ************************************************************************
//
// Galeri: Finite Element and Matrix Generation Package
// Copyright (2006) ETHZ/Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions about Galeri? Contact Marzio Sala (marzio.sala _AT_ gmail.com)
//
// ************************************************************************
// @HEADER
#ifndef GALERI_STRETCHED2DMATRIX_H
#define GALERI_STRETCHED2DMATRIX_H
#include "Galeri_Exception.h"
#include "Galeri_Utils.h"
#include "Epetra_Comm.h"
#include "Epetra_BlockMap.h"
#include "Epetra_CrsMatrix.h"
namespace Galeri {
namespace Matrices {
//def for espilon muyst be 1e-5
template<typename int_type>
inline
Epetra_CrsMatrix*
Stretched2D(const Epetra_Map* Map, const int nx, const int ny,
const double epsilon)
{
Epetra_CrsMatrix* Matrix = new Epetra_CrsMatrix(Copy, *Map, 9);
int NumMyElements = Map->NumMyElements();
int_type* MyGlobalElements = 0;
Map->MyGlobalElementsPtr(MyGlobalElements);
int left, right, lower, upper;
double Values[9];
int_type Indices[9];
for (int i = 0 ; i < NumMyElements ; ++i)
{
int NumEntries = 0;
GetNeighboursCartesian2d(MyGlobalElements[i], nx, ny,
left, right, lower, upper);
if (left != -1)
{
Indices[NumEntries] = left;
Values[NumEntries] = 2.0 - epsilon;
++NumEntries;
}
if (right != -1)
{
Indices[NumEntries] = right;
Values[NumEntries] = 2.0 - epsilon;
++NumEntries;
}
if (lower != -1)
{
Indices[NumEntries] = lower;
Values[NumEntries] = -4.0 + epsilon;
++NumEntries;
}
if (upper != -1)
{
Indices[NumEntries] = upper;
Values[NumEntries] = -4.0 + epsilon;
++NumEntries;
}
if (left != -1 && lower != -1)
{
Indices[NumEntries] = lower - 1;
Values[NumEntries] = -1.0;
++NumEntries;
}
if (right != -1 && lower != -1)
{
Indices[NumEntries] = lower + 1;
Values[NumEntries] = -1.0;
++NumEntries;
}
if (left != -1 && upper != -1)
{
Indices[NumEntries] = upper - 1;
Values[NumEntries] = -1.0;
++NumEntries;
}
if (right != -1 && upper != -1)
{
Indices[NumEntries] = upper + 1;
Values[NumEntries] = -1.0;
++NumEntries;
}
Indices[NumEntries] = MyGlobalElements[i];
Values[NumEntries] = 8.0;
++NumEntries;
Matrix->InsertGlobalValues(MyGlobalElements[i], NumEntries,
Values, Indices);
}
Matrix->FillComplete();
Matrix->OptimizeStorage();
return(Matrix);
}
inline
Epetra_CrsMatrix*
Stretched2D(const Epetra_Map* Map, const int nx, const int ny,
const double epsilon)
{
#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
if(Map->GlobalIndicesInt()) {
return Stretched2D<int>(Map, nx, ny, epsilon);
}
else
#endif
#ifndef EPETRA_NO_64BIT_GLOBAL_INDICES
if(Map->GlobalIndicesLongLong()) {
return Stretched2D<long long>(Map, nx, ny, epsilon);
}
else
#endif
throw "Galeri::Matrices::Stretched2D: GlobalIndices type unknown";
}
} // namespace Matrices
} // namespace Galeri
#endif
|