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Ifpack.cpp
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42 #include "Ifpack_ConfigDefs.h"
43 #include "Ifpack.h"
44 #include "Ifpack_Preconditioner.h"
45 #include "Ifpack_PointRelaxation.h"
46 #include "Ifpack_BlockRelaxation.h"
47 #include "Ifpack_IC.h"
48 #include "Ifpack_ICT.h"
49 #include "Ifpack_ILU.h"
50 #include "Ifpack_SILU.h"
51 #include "Ifpack_ILUT.h"
52 #include "Ifpack_SPARSKIT.h"
53 #include "Ifpack_AdditiveSchwarz.h"
54 #include "Ifpack_DenseContainer.h"
55 #include "Ifpack_TriDiContainer.h"
56 #include "Ifpack_SparseContainer.h"
57 #ifdef HAVE_IFPACK_AMESOS
58 #include "Ifpack_Amesos.h"
59 #endif
60 #ifdef HAVE_IFPACK_HIPS
61 #include "Ifpack_HIPS.h"
62 #endif
63 #ifdef HAVE_IFPACK_SUPERLU
64 #include "Ifpack_SILU.h"
65 #endif
66 #ifdef HAVE_IFPACK_SUPPORTGRAPH
67 #include "Ifpack_SupportGraph.h"
68 #endif
69 
70 #include "Ifpack_Chebyshev.h"
71 #include "Ifpack_Polynomial.h"
72 #include "Ifpack_Krylov.h"
73 #include "Ifpack_IHSS.h"
74 #include "Ifpack_SORa.h"
75 
76 #include "Teuchos_CommandLineProcessor.hpp"
77 #include "Teuchos_StringToIntMap.hpp"
78 #include "Epetra_CrsMatrix.h"
79 
80 
81 namespace {
82 
84 precTypeNameToIntMap(
85  "parameter \"Prec Type\"", Ifpack::numPrecTypes, Ifpack::precTypeNames
86  );
87 
88 } // namespace
89 
90 //==============================================================================
92 {
93  POINT_RELAXATION
94  ,POINT_RELAXATION_STAND_ALONE
95  ,BLOCK_RELAXATION
96  ,BLOCK_RELAXATION_STAND_ALONE
97  ,BLOCK_RELAXATION_STAND_ALONE_ILU
98  ,BLOCK_RELAXATION_STAND_ALONE_ILUT
99  ,BLOCK_RELAXATION_STAND_ALONE_IC
100 #ifdef HAVE_IFPACK_SUPERLU
101  ,BLOCK_RELAXATION_STAND_ALONE_SILU
102 #endif
103 #ifdef HAVE_IFPACK_AMESOS
104  ,BLOCK_RELAXATION_STAND_ALONE_AMESOS
105  ,BLOCK_RELAXATION_AMESOS
106  ,AMESOS
107  ,AMESOS_STAND_ALONE
108 #endif // HAVE_IFPACK_AMESOS
109  ,IC
110  ,IC_STAND_ALONE
111  ,ICT
112  ,ICT_STAND_ALONE
113  ,ILU
114  ,ILU_STAND_ALONE
115  ,ILUT
116  ,ILUT_STAND_ALONE
117 #ifdef HAVE_IFPACK_SPARSKIT
118  ,SPARSKIT
119 #endif // HAVE_IFPACK_SPARSKIT
120 #ifdef HAVE_IFPACK_HIPS
121  ,HIPS
122 #endif
123 #ifdef HAVE_IFPACK_HYPRE
124  ,HYPRE
125 #endif
126 #ifdef HAVE_IFPACK_SUPERLU
127  ,SILU
128 #endif
129 #if defined (HAVE_IFPACK_SUPPORTGRAPH) && defined (HAVE_IFPACK_AMESOS)
130  ,MSF_AMESOS
131 #endif
132 #ifdef HAVE_IFPACK_SUPPORTGRAPH
133  ,MSF_IC
134 #endif
135  ,CHEBYSHEV
136  ,POLYNOMIAL
137  ,KRYLOV
138  ,IHSS
139  ,SORA
140  ,TRIDI_RELAXATION
141  ,TRIDI_RELAXATION_STAND_ALONE
142 };
143 
144 //==============================================================================
146 {
147  "point relaxation"
148  ,"point relaxation stand-alone"
149  ,"block relaxation"
150  ,"block relaxation stand-alone"
151  ,"block relaxation stand-alone (ILU)"
152  ,"block relaxation stand-alone (ILUT)"
153  ,"block relaxation stand-alone (IC)"
154 #ifdef HAVE_IFPACK_SUPERLU
155  ,"block relaxation stand-alone (SILU)"
156 #endif
157 #ifdef HAVE_IFPACK_AMESOS
158  ,"block relaxation stand-alone (Amesos)"
159  ,"block relaxation (Amesos)"
160  ,"Amesos"
161  ,"Amesos stand-alone"
162 #endif
163  ,"IC"
164  ,"IC stand-alone"
165  ,"ICT"
166  ,"ICT stand-alone"
167  ,"ILU"
168  ,"ILU stand-alone"
169  ,"ILUT"
170  ,"ILUT stand-alone"
171 #ifdef HAVE_IFPACK_SPARSKIT
172  ,"SPARSKIT"
173 #endif
174 #ifdef HAVE_IFPACK_HIPS
175  ,"HIPS"
176 #endif
177 #ifdef HAVE_IFPACK_HYPRE
178  ,"Hypre"
179 #endif
180 #ifdef HAVE_IFPACK_SUPERLU
181  ,"SILU"
182 #endif
183 #if defined (HAVE_IFPACK_SUPPORTGRAPH) && defined (HAVE_IFPACK_AMESOS)
184  ,"MSF Amesos"
185 #endif
186 #ifdef HAVE_IFPACK_SUPPORTGRAPH
187  ,"MSF IC"
188 #endif
189  ,"Chebyshev"
190  ,"Polynomial"
191  ,"Krylov"
192  ,"IHSS"
193  ,"SORa"
194  ,"tridi relaxation"
195  ,"tridi relaxation stand-alone"
196 };
197 
198 //==============================================================================
200 {
201  true // point relaxation
202  ,true // point relaxation stand-alone
203  ,true // block relaxation
204  ,true // block relaxation stand-alone
205  ,true // block relaxation stand-alone (ILU)
206  ,true // block relaxation stand-alone (ILUT)
207  ,false // block relaxation stand-alone (IC)
208 #ifdef HAVE_IFPACK_SUPERLU
209  ,true // block relaxation stand-alone (SILU)
210 #endif
211 #ifdef HAVE_IFPACK_AMESOS
212  ,true // block relaxation stand-alone (Amesos)
213  ,true // block relaxation (Amesos)
214  ,true // Amesos
215  ,true // Amesos stand-alone
216 #endif
217  ,false // IC
218  ,false // IC stand-alone
219  ,false // ICT
220  ,false // ICT stand-alone
221  ,true // ILU
222  ,true // ILU stand-alone
223  ,true // ILUT
224  ,true // ILUT stand-alone
225 #ifdef HAVE_IFPACK_SPARSKIT
226  ,true // SPARSKIT
227 #endif
228 #ifdef HAVE_IFPACK_HIPS
229  ,true // HIPS
230 #endif
231 #ifdef HAVE_IFPACK_HYPRE
232  ,true
233 #endif
234 #ifdef HAVE_IFPACK_SUPERLU
235  ,true // SuperLU's Supernodal ILUTP
236 #endif
237 #if defined (HAVE_IFPACK_SUPPORTGRAPH) && defined (HAVE_IFPACK_AMESOS)
238  ,false
239 #endif
240 #ifdef HAVE_IFPACK_SUPPORTGRAPH
241  ,false
242 #endif
243  ,false // CHEBYSHEV
244  ,true // POLYNOMIAL
245  ,true // KRYLOV
246  ,true // IHSS
247  ,true // SORa
248  ,true // tridi relaxation
249  ,true // tridi relaxation standalone
250 };
251 
252 //==============================================================================
254  Epetra_RowMatrix* Matrix,
255  const int Overlap,
256  bool overrideSerialDefault)
257 {
258  const bool serial = (Matrix->Comm().NumProc() == 1);
259 
260  switch(PrecType) {
261  case POINT_RELAXATION:
262  if (serial && !overrideSerialDefault)
263  return(new Ifpack_PointRelaxation(Matrix));
264  else
265  return(new Ifpack_AdditiveSchwarz<Ifpack_PointRelaxation>(Matrix, Overlap));
267  return(new Ifpack_PointRelaxation(Matrix));
268  case BLOCK_RELAXATION:
269  if (serial && !overrideSerialDefault)
271  else
272  return(new Ifpack_AdditiveSchwarz<
282 #ifdef HAVE_IFPACK_SUPERLU
283  case BLOCK_RELAXATION_STAND_ALONE_SILU:
285 #endif
286 #ifdef HAVE_IFPACK_AMESOS
287  case BLOCK_RELAXATION_STAND_ALONE_AMESOS:
289  case BLOCK_RELAXATION_AMESOS:
290  return(new Ifpack_AdditiveSchwarz<
292  case AMESOS:
293  if (serial && !overrideSerialDefault)
294  return(new Ifpack_Amesos(Matrix));
295  else
296  return(new Ifpack_AdditiveSchwarz<Ifpack_Amesos>(Matrix,Overlap));
297  case AMESOS_STAND_ALONE:
298  return(new Ifpack_Amesos(Matrix));
299 #endif
300  case IC:
301  if (serial && !overrideSerialDefault)
302  return(new Ifpack_IC(Matrix));
303  else
304  return(new Ifpack_AdditiveSchwarz<Ifpack_IC>(Matrix,Overlap));
305  case IC_STAND_ALONE:
306  return(new Ifpack_IC(Matrix));
307  case ICT:
308  if (serial && !overrideSerialDefault)
309  return(new Ifpack_ICT(Matrix));
310  else
311  return(new Ifpack_AdditiveSchwarz<Ifpack_ICT>(Matrix,Overlap));
312  case ICT_STAND_ALONE:
313  return(new Ifpack_ICT(Matrix));
314  case ILU:
315  if (serial && !overrideSerialDefault)
316  return(new Ifpack_ILU(Matrix));
317  else
318  return(new Ifpack_AdditiveSchwarz<Ifpack_ILU>(Matrix,Overlap));
319  case ILU_STAND_ALONE:
320  return(new Ifpack_ILU(Matrix));
321  case ILUT:
322  if (serial && !overrideSerialDefault)
323  return(new Ifpack_ILUT(Matrix));
324  else
325  return(new Ifpack_AdditiveSchwarz<Ifpack_ILUT>(Matrix,Overlap));
326  case ILUT_STAND_ALONE:
327  return(new Ifpack_ILUT(Matrix));
328 #ifdef HAVE_IFPACK_SPARSKIT
329  case SPARSKIT:
330  return(new Ifpack_SPARSKIT(Matrix));
331 #endif
332 #ifdef HAVE_IFPACK_HIPS
333  case HIPS:
334  return(new Ifpack_HIPS(Matrix));
335 #endif
336 #ifdef HAVE_IFPACK_HYPRE
337  case HYPRE:
338  return(new Ifpack_Hypre(Matrix));
339 #endif
340 #ifdef HAVE_IFPACK_SUPERLU
341  case SILU:
342  return(new Ifpack_SILU(Matrix));
343 #endif
344 #if defined (HAVE_IFPACK_SUPPORTGRAPH) && defined (HAVE_IFPACK_AMESOS)
345  case MSF_AMESOS:
346  if (serial && !overrideSerialDefault)
347  return(new Ifpack_SupportGraph<Ifpack_Amesos>(Matrix));
348  else
349  return(new Ifpack_AdditiveSchwarz<Ifpack_SupportGraph<Ifpack_Amesos> >(Matrix,Overlap));
350 #endif
351 #ifdef HAVE_IFPACK_SUPPORTGRAPH
352  case MSF_IC:
353  if (serial && !overrideSerialDefault)
355  else
356  return(new Ifpack_AdditiveSchwarz<Ifpack_SupportGraph<Ifpack_IC> >(Matrix,Overlap));
357 #endif
358  case CHEBYSHEV:
359  return(new Ifpack_Chebyshev(Matrix));
360  case POLYNOMIAL:
361  return(new Ifpack_Polynomial(Matrix));
362  case KRYLOV:
363  return(new Ifpack_Krylov(Matrix));
364  // local krylov
365  // if (serial && !overrideSerialDefault)
366  // return(new Ifpack_Krylov(Matrix));
367  // else
368  // return(new Ifpack_AdditiveSchwarz<Ifpack_Krylov>(Matrix, Overlap));
369 #ifdef HAVE_IFPACK_EPETRAEXT
370  case IHSS:
371  return(new Ifpack_IHSS(Matrix));
372  case SORA:
373  return(new Ifpack_SORa(Matrix));
374 #endif
375  case TRIDI_RELAXATION:
376  if (serial && !overrideSerialDefault)
378  else
379  return(new Ifpack_AdditiveSchwarz<
383  default:
385  // The only way to get here is if some code developer does a cast like
386  // (EPrecType)(anyNumber). You can never get here by passing in a
387  // std::string value for the preconditioner!
388  } // end switch
389  //return 0; // unreachable
390 }
391 
392 //==============================================================================
393 Ifpack_Preconditioner* Ifpack::Create(const std::string PrecType,
394  Epetra_RowMatrix* Matrix,
395  const int Overlap,
396  bool overrideSerialDefault)
397 {
398  try {
399  return Ifpack::Create(Teuchos::get<EPrecType>(::precTypeNameToIntMap,PrecType),Matrix,Overlap,overrideSerialDefault);
400  }
401  catch( const Teuchos::StringToIntMap::DoesNotExist &excpt ) {
402  // The old implementation of this function just silently returned a NULL
403  // when a preconditiner type name was not recognized. If you like this
404  // behavior then you should use this function. If you do not like this
405  // behavior, then consider using the Ifpack/Thyra adapter
406  // Thyra::IfpackPreconditionerFactory or better yet the Stratimikos
407  // wrapper class Stratimikos::DefaultLinearSolverBuilder.
408  }
409  return 0;
410 }
411 
412 // ======================================================================
413 int Ifpack::SetParameters(int argc, char* argv[],
414  Teuchos::ParameterList& List, std::string& PrecType,
415  int& Overlap)
416 {
417  // THIS FUNCTION IS VERY INCOMPLETE...
418 
420 
421  // prec type
422  std::string ifp_prec_type = "ILU";
423  CLP.setOption("ifp-prec-type",&ifp_prec_type,"Preconditioner type");
424  // overlap among the processors
425  int ifp_overlap = 0;
426  CLP.setOption("ifp-overlap",&ifp_overlap,"Overlap among processors");
427  // relaxation type
428  std::string ifp_relax_type = "Jacobi";
429  CLP.setOption("ifp-relax-type",&ifp_relax_type,"Relaxation type");
430  // sweeps (for relax only)
431  int ifp_relax_sweeps = 1;
432  CLP.setOption("ifp-relax-sweeps",
433  &ifp_relax_sweeps,"Number of sweeps for relaxation");
434  // damping (for relax only)
435  double ifp_relax_damping = 1.0;
436  CLP.setOption("ifp-relax-damping",
437  &ifp_relax_damping,"Damping for relaxation");
438  // partitioner type (for block relaxation only)
439  std::string ifp_part_type = "greedy";
440  CLP.setOption("ifp-part-type",&ifp_part_type,"Partitioner type");
441  // number of local parts (for block relaxation only)
442  int ifp_part_local = 1;
443  CLP.setOption("ifp-part-local",&ifp_part_local,"number of local partitions");
444 
445  // allow users to specify other options for other packages
446  CLP.recogniseAllOptions(false);
447  CLP.throwExceptions(false);
448  CLP.parse(argc,argv);
449 
450  // I cannot really set those in the List, I pass them back to the user
451  PrecType = ifp_prec_type;
452  Overlap = ifp_overlap;
453 
454  // set the list here
455  List.set("relaxation: type", ifp_relax_type);
456  List.set("relaxation: sweeps", ifp_relax_sweeps);
457  List.set("relaxation: damping factor", ifp_relax_damping);
458  List.set("partitioner: type", ifp_part_type);
459  List.set("partitioner: local parts", ifp_part_local);
460 
461  return(0);
462 }
static const int numPrecTypes
Definition: Ifpack.h:195
Ifpack_BlockRelaxation: a class to define block relaxation preconditioners of Epetra_RowMatrix&#39;s.
void recogniseAllOptions(const bool &recogniseAllOptions)
static const EPrecType precTypeValues[numPrecTypes]
List of the preconditioner types as enum values .
Definition: Ifpack.h:223
int SetParameters(int argc, char *argv[], Teuchos::ParameterList &List, std::string &PrecType, int &Overlap)
Sets the options in List from the command line.
Definition: Ifpack.cpp:413
ParameterList & set(std::string const &name, T const &value, std::string const &docString="", RCP< const ParameterEntryValidator > const &validator=null)
EPrecType
Enum for the type of preconditioner.
Definition: Ifpack.h:142
static const char * precTypeNames[numPrecTypes]
List of preconditioner types as std::string values.
Definition: Ifpack.h:226
Ifpack_ILU: A class for constructing and using an incomplete lower/upper (ILU) factorization of a giv...
Definition: Ifpack_ILU.h:83
Ifpack_Amesos: a class to use Amesos&#39; factorizations as preconditioners.
Definition: Ifpack_Amesos.h:81
virtual const Epetra_Comm & Comm() const =0
Ifpack_AdditiveSchwarz: a class to define Additive Schwarz preconditioners of Epetra_RowMatrix&#39;s.
void setOption(const char option_true[], const char option_false[], bool *option_val, const char documentation[]=NULL)
Ifpack_SparseContainer: a class for storing and solving linear systems using sparse matrices...
Ifpack_Chebyshev: class for preconditioning with Chebyshev polynomials in Ifpack. ...
Ifpack_Preconditioner: basic class for preconditioning in Ifpack.
Ifpack_PointRelaxation: a class to define point relaxation preconditioners of for Epetra_RowMatrix&#39;s...
EParseCommandLineReturn parse(int argc, char *argv[], std::ostream *errout=&std::cerr) const
void throwExceptions(const bool &throwExceptions)
Ifpack_Polynomial: class for preconditioning with least squares polynomials in Ifpack.
Ifpack_Krylov: class for smoothing with Krylov solvers in Ifpack.
Definition: Ifpack_Krylov.h:81
virtual int NumProc() const =0
Ifpack_IC: A class for constructing and using an incomplete Cholesky factorization of a given Epetra_...
Definition: Ifpack_IC.h:80
Ifpack_ICT: A class for constructing and using an incomplete Cholesky factorization of a given Epetra...
Definition: Ifpack_ICT.h:83
static Ifpack_Preconditioner * Create(EPrecType PrecType, Epetra_RowMatrix *Matrix, const int overlap=0, bool overrideSerialDefault=false)
Creates an instance of Ifpack_Preconditioner given the enum value of the preconditioner type (can not...
Definition: Ifpack.cpp:253
static const bool supportsUnsymmetric[numPrecTypes]
List of bools that determines if the preconditioner type supports unsymmetric matrices.
Definition: Ifpack.h:230
Ifpack_ILUT: A class for constructing and using an incomplete LU factorization of a given Epetra_RowM...
Definition: Ifpack_ILUT.h:81
#define TEUCHOS_TEST_FOR_EXCEPT(throw_exception_test)