This file is indexed.

/usr/include/trilinos/Ifpack_OverlappingRowMatrix.h is in libtrilinos-ifpack-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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
/*@HEADER
// ***********************************************************************
//
//       Ifpack: Object-Oriented Algebraic Preconditioner Package
//                 Copyright (2002) 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? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
//@HEADER
*/

#ifndef IFPACK_OVERLAPPINGROWMATRIX_H
#define IFPACK_OVERLAPPINGROWMATRIX_H

#include "Ifpack_ConfigDefs.h"
#include "Epetra_RowMatrix.h"
#include "Epetra_CombineMode.h"
#include "Teuchos_RefCountPtr.hpp"
#include "Epetra_Import.h"
#include "Epetra_Map.h"
#ifdef HAVE_IFPACK_PARALLEL_SUBDOMAIN_SOLVERS
#include "Epetra_IntVector.h"
#else
# ifdef IFPACK_NODE_AWARE_CODE
# include "Epetra_IntVector.h"
# endif
#endif

class Epetra_Map;
class Epetra_BlockMap;
class Epetra_CrsMatrix;
class Epetra_Comm;

//! Ifpack_OverlappingRowMatrix: matrix with ghost rows, based on Epetra_RowMatrix
//
class Ifpack_OverlappingRowMatrix : public virtual Epetra_RowMatrix {

public:

  //@{ Constructors/Destructors
#ifdef HAVE_IFPACK_PARALLEL_SUBDOMAIN_SOLVERS
  Ifpack_OverlappingRowMatrix(const Teuchos::RefCountPtr<const Epetra_RowMatrix>& Matrix_in,
                              int OverlapLevel_in, int subdomainID);
#else
# ifdef IFPACK_NODE_AWARE_CODE
  Ifpack_OverlappingRowMatrix(const Teuchos::RefCountPtr<const Epetra_RowMatrix>& Matrix_in,
                              int OverlapLevel_in, int myNodeID);
# endif
#endif
  Ifpack_OverlappingRowMatrix(const Teuchos::RefCountPtr<const Epetra_RowMatrix>& Matrix_in,
                              int OverlapLevel_in);

#ifdef HAVE_IFPACK_PARALLEL_SUBDOMAIN_SOLVERS
  ~Ifpack_OverlappingRowMatrix() {};
#else
# ifdef IFPACK_NODE_AWARE_CODE
  ~Ifpack_OverlappingRowMatrix();
# else
  ~Ifpack_OverlappingRowMatrix() {};
# endif
#endif
  //@}

  //@{ \name Matrix data extraction routines

  //! Returns the number of nonzero entries in MyRow.
  /*!
    \param
    MyRow - (In) Local row.
    \param
    NumEntries - (Out) Number of nonzero values present.

    \return Integer error code, set to 0 if successful.
    */
  virtual int NumMyRowEntries(int MyRow, int & NumEntries) const;

  //! Returns the maximum of NumMyRowEntries() over all rows.
  virtual int MaxNumEntries() const
  {
    return(MaxNumEntries_);
  }

  //! Returns a copy of the specified local row in user-provided arrays.
  /*!
    \param
    MyRow - (In) Local row to extract.
    \param
    Length - (In) Length of Values and Indices.
    \param
    NumEntries - (Out) Number of nonzero entries extracted.
    \param
    Values - (Out) Extracted values for this row.
    \param
    Indices - (Out) Extracted global column indices for the corresponding values.

    \return Integer error code, set to 0 if successful.
    */
  virtual int ExtractMyRowCopy(int MyRow, int Length, int & NumEntries, double *Values, int * Indices) const;
#ifdef HAVE_IFPACK_PARALLEL_SUBDOMAIN_SOLVERS
  virtual int ExtractGlobalRowCopy(int MyRow, int Length, int & NumEntries, double* Values, int* Indices) const;
#else
# ifdef IFPACK_NODE_AWARE_CODE
  virtual int ExtractGlobalRowCopy(int MyRow, int Length, int & NumEntries, double* Values, int* Indices) const;
# endif
#endif

  //! Returns a copy of the main diagonal in a user-provided vector.
  /*!
    \param
    Diagonal - (Out) Extracted main diagonal.

    \return Integer error code, set to 0 if successful.
    */
  virtual int ExtractDiagonalCopy(Epetra_Vector & Diagonal) const;
  //@}

  //@{ \name Mathematical functions.

  //! Returns the result of a Epetra_RowMatrix multiplied by a Epetra_MultiVector X in Y.
  /*!
    \param
    TransA -(In) If true, multiply by the transpose of matrix, otherwise just use matrix.
    \param
    X - (In) A Epetra_MultiVector of dimension NumVectors to multiply with matrix.
    \param
    Y -(Out) A Epetra_MultiVector of dimension NumVectorscontaining result.

    \return Integer error code, set to 0 if successful.
    */
  virtual int Multiply(bool TransA, const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;

  //! Returns result of a local-only solve using a triangular Epetra_RowMatrix with Epetra_MultiVectors X and Y (NOT IMPLEMENTED).
  virtual int Solve(bool Upper, bool Trans, bool UnitDiagonal, const Epetra_MultiVector& X,
                    Epetra_MultiVector& Y) const
  {
    IFPACK_RETURN(-1); // not implemented
  }

  virtual int Apply(const Epetra_MultiVector& X,
                    Epetra_MultiVector& Y) const;

  virtual int ApplyInverse(const Epetra_MultiVector& X,
                           Epetra_MultiVector& Y) const;
  //! Computes the sum of absolute values of the rows of the Epetra_RowMatrix, results returned in x (NOT IMPLEMENTED).
  virtual int InvRowSums(Epetra_Vector& x) const
  {
    IFPACK_RETURN(-1); // not implemented
  }

  //! Scales the Epetra_RowMatrix on the left with a Epetra_Vector x (NOT IMPLEMENTED).
  virtual int LeftScale(const Epetra_Vector& x)
  {
    IFPACK_RETURN(-1); // not implemented
  }

  //! Computes the sum of absolute values of the columns of the Epetra_RowMatrix, results returned in x (NOT IMPLEMENTED).
  virtual int InvColSums(Epetra_Vector& x) const
  {
    IFPACK_RETURN(-1); // not implemented
  }


  //! Scales the Epetra_RowMatrix on the right with a Epetra_Vector x (NOT IMPLEMENTED).
  virtual int RightScale(const Epetra_Vector& x)
  {
    IFPACK_RETURN(-1); // not implemented
  }

  //@}

  //@{ \name Attribute access functions

  //! If FillComplete() has been called, this query returns true, otherwise it returns false.
  virtual bool Filled() const
  {
    return(true);
  }

  //! Returns the infinity norm of the global matrix.
  /* Returns the quantity \f$ \| A \|_\infty\f$ such that
     \f[\| A \|_\infty = \max_{1\lei\len} \sum_{i=1}^m |a_{ij}| \f].
     */
  virtual double NormInf() const
  {
    return(A().NormInf());
  }

  //! Returns the one norm of the global matrix.
  /* Returns the quantity \f$ \| A \|_1\f$ such that
     \f[\| A \|_1= \max_{1\lej\len} \sum_{j=1}^n |a_{ij}| \f].
     */
  virtual double NormOne() const
  {
    return(A().NormOne());
  }

#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
  //! Returns the number of nonzero entries in the global matrix.
  virtual int NumGlobalNonzeros() const
  {
    if(A().RowMatrixRowMap().GlobalIndicesInt())
       return (int) NumGlobalNonzeros_;
    else
       throw "Ifpack_OverlappingRowMatrix::NumGlobalNonzeros: Global indices not int";
  }

  //! Returns the number of global matrix rows.
  virtual int NumGlobalRows() const
  {
    return(A().NumGlobalRows());
  }

  //! Returns the number of global matrix columns.
  virtual int NumGlobalCols() const
  {
    return(A().NumGlobalCols());
  }

  //! Returns the number of global nonzero diagonal entries, based on global row/column index comparisons.
  virtual int NumGlobalDiagonals() const
  {
    return(A().NumGlobalDiagonals());
  }
#endif
  //! Returns the number of nonzero entries in the global matrix.
  virtual long long NumGlobalNonzeros64() const
  {
    return(NumGlobalNonzeros_);
  }

  //! Returns the number of global matrix rows.
  virtual long long NumGlobalRows64() const
  {
    return(A().NumGlobalRows64());
  }

  //! Returns the number of global matrix columns.
  virtual long long NumGlobalCols64() const
  {
    return(A().NumGlobalCols64());
  }

  //! Returns the number of global nonzero diagonal entries, based on global row/column index comparisons.
  virtual long long NumGlobalDiagonals64() const
  {
    return(A().NumGlobalDiagonals64());
  }

  //! Returns the number of nonzero entries in the calling processor's portion of the matrix.
  virtual int NumMyNonzeros() const
  {
    return(NumMyNonzeros_);
  }

  //! Returns the number of matrix rows owned by the calling processor.
  virtual int NumMyRows() const
  {
    return(NumMyRows_);
  }

  //! Returns the number of matrix columns owned by the calling processor.
  virtual int NumMyCols() const
  {
    return(NumMyCols_);
  }

  //! Returns the number of local nonzero diagonal entries, based on global row/column index comparisons.
  virtual int NumMyDiagonals() const
  {
    return(NumMyDiagonals_);
  }

  //! If matrix is lower triangular in local index space, this query returns true, otherwise it returns false.
  virtual bool LowerTriangular() const
  {
    return(A().LowerTriangular());
  }

  //! If matrix is upper triangular in local index space, this query returns true, otherwise it returns false.
  virtual bool UpperTriangular() const
  {
    return(A().UpperTriangular());
  }

  //! Returns the Epetra_Map object associated with the rows of this matrix.
  virtual const Epetra_Map & RowMatrixRowMap() const
  {
    return(*Map_);
  }

  //! Returns the Epetra_Map object associated with the columns of this matrix.
  virtual const Epetra_Map & RowMatrixColMap() const
  {
#ifdef HAVE_IFPACK_PARALLEL_SUBDOMAIN_SOLVERS
    return(*colMap_);
#else
#   ifdef IFPACK_NODE_AWARE_CODE
    return(*colMap_);
#   else
    return(*Map_);
#   endif
#endif
  }

  //! Returns the Epetra_Import object that contains the import operations for distributed operations.
  virtual const Epetra_Import * RowMatrixImporter() const
  {
    return(&*Importer_);
  }
  //@}

  // following functions are required to derive Epetra_RowMatrix objects.

  //! Sets ownership.
  int SetOwnership(bool ownership)
  {
    IFPACK_RETURN(-1);
  }

  //! Sets use transpose (not implemented).
  int SetUseTranspose(bool UseTranspose_in)
  {
    UseTranspose_ = UseTranspose_in;
    return(0);
  }

  //! Returns the current UseTranspose setting.
  bool UseTranspose() const
  {
    return(UseTranspose_);
  }

  //! Returns true if the \e this object can provide an approximate Inf-norm, false otherwise.
  bool HasNormInf() const
  {
    return(A().HasNormInf());
  }

  //! Returns a pointer to the Epetra_Comm communicator associated with this operator.
  const Epetra_Comm & Comm() const
  {
    return(A().Comm());
  }

  //! Returns the Epetra_Map object associated with the domain of this operator.
  const Epetra_Map & OperatorDomainMap() const
  {
    return(*Map_);
  }

  //! Returns the Epetra_Map object associated with the range of this operator.
  const Epetra_Map & OperatorRangeMap() const
  {
    return(*Map_);
  }
  //@}

const Epetra_BlockMap& Map() const;

const char* Label() const{
  return(Label_.c_str());
};

int OverlapLevel() const
{
  return(OverlapLevel_);
}

int ImportMultiVector(const Epetra_MultiVector& X,
                      Epetra_MultiVector& OvX,
                      Epetra_CombineMode CM = Insert);

int ExportMultiVector(const Epetra_MultiVector& OvX,
                      Epetra_MultiVector& X,
                      Epetra_CombineMode CM = Add);
#ifdef HAVE_IFPACK_PARALLEL_SUBDOMAIN_SOLVERS
  inline const Epetra_RowMatrix& A() const
  {
    return(*Matrix_);
  }

  inline Epetra_CrsMatrix& B() const
  {
    return(*ExtMatrix_);
  }
#else
# ifdef IFPACK_NODE_AWARE_CODE
  inline const Epetra_RowMatrix& A() const
  {
    return(*Matrix_);
  }

  inline Epetra_CrsMatrix& B() const
  {
    return(*ExtMatrix_);
  }
# endif
#endif

private:
#ifndef HAVE_IFPACK_PARALLEL_SUBDOMAIN_SOLVERS
# ifndef IFPACK_NODE_AWARE_CODE
  inline const Epetra_RowMatrix& A() const
  {
    return(*Matrix_);
  }

  inline Epetra_RowMatrix& B() const;
# endif
#endif

  int NumMyRows_;
  int NumMyCols_;
  int NumMyDiagonals_;
  int NumMyNonzeros_;

  long long NumGlobalNonzeros_;
  int MaxNumEntries_;

  int NumMyRowsA_;
  int NumMyRowsB_;

  bool UseTranspose_;

  Teuchos::RefCountPtr<const Epetra_Map> Map_;
#ifdef HAVE_IFPACK_PARALLEL_SUBDOMAIN_SOLVERS
  const Epetra_Map *colMap_;
#else
# ifdef IFPACK_NODE_AWARE_CODE
  const Epetra_Map *colMap_;
# endif
#endif
  Teuchos::RefCountPtr<const Epetra_Import> Importer_;

  Teuchos::RefCountPtr<const Epetra_RowMatrix> Matrix_;
  Teuchos::RefCountPtr<Epetra_CrsMatrix> ExtMatrix_;
  Teuchos::RefCountPtr<Epetra_Map> ExtMap_;
  Teuchos::RefCountPtr<Epetra_Import> ExtImporter_;

  int OverlapLevel_;
  std::string Label_;

  template<typename int_type>
  void BuildMap(int OverlapLevel_in);

}; // class Ifpack_OverlappingRowMatrix

#endif // IFPACK_OVERLAPPINGROWMATRIX_H