Tpetra parallel linear algebra Version of the Day
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Tpetra_Import_decl.hpp
1// @HEADER
2// *****************************************************************************
3// Tpetra: Templated Linear Algebra Services Package
4//
5// Copyright 2008 NTESS and the Tpetra contributors.
6// SPDX-License-Identifier: BSD-3-Clause
7// *****************************************************************************
8// @HEADER
9
10#ifndef TPETRA_IMPORT_DECL_HPP
11#define TPETRA_IMPORT_DECL_HPP
12
13#include "Tpetra_Details_Transfer.hpp"
14#include "Tpetra_Import_fwd.hpp"
15#include "Tpetra_Export_fwd.hpp"
16
17namespace Tpetra {
18
74 template<class LocalOrdinal,
75 class GlobalOrdinal,
76 class Node>
77 class Import:
78 public ::Tpetra::Details::Transfer<LocalOrdinal, GlobalOrdinal, Node>
79 {
80 private:
81 friend class Export<LocalOrdinal,GlobalOrdinal,Node>;
82 using base_type =
83 ::Tpetra::Details::Transfer<LocalOrdinal, GlobalOrdinal, Node>;
84 public:
86 using map_type = ::Tpetra::Map<LocalOrdinal, GlobalOrdinal, Node>;
87
89
90
98 Import (const Teuchos::RCP<const map_type>& source,
99 const Teuchos::RCP<const map_type>& target);
100
111 Import (const Teuchos::RCP<const map_type>& source,
112 const Teuchos::RCP<const map_type>& target,
113 const Teuchos::RCP<Teuchos::FancyOStream>& out);
114
127 Import (const Teuchos::RCP<const map_type>& source,
128 const Teuchos::RCP<const map_type>& target,
129 const Teuchos::RCP<Teuchos::ParameterList>& plist);
130
146 Import (const Teuchos::RCP<const map_type>& source,
147 const Teuchos::RCP<const map_type>& target,
148 const Teuchos::RCP<Teuchos::FancyOStream>& out,
149 const Teuchos::RCP<Teuchos::ParameterList>& plist);
150
162 Import (const Teuchos::RCP<const map_type>& source,
163 const Teuchos::RCP<const map_type>& target,
164 Teuchos::Array<int> & remotePIDs,
165 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::rcp(new Teuchos::ParameterList) );
166
171 Import (const Import<LocalOrdinal,GlobalOrdinal,Node>& importer);
172
179 Import (const Export<LocalOrdinal,GlobalOrdinal,Node>& exporter);
180
211 Import (const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> >& sourceMap,
212 const GlobalOrdinal targetMapRemoteOrPermuteGlobalIndices[],
213 const int targetMapRemoteOrPermuteProcessRanks[],
214 const LocalOrdinal numTargetMapRemoteOrPermuteGlobalIndices,
215 const bool mayReorderTargetMapIndicesLocally,
216 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null,
217 const Teuchos::RCP<Teuchos::FancyOStream>& out = Teuchos::null);
218
220 Import (const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> >& source,
221 const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> >& target,
222 const Teuchos::ArrayView<int> & remotePIDs,
223 const Teuchos::ArrayView<const LocalOrdinal> & userExportLIDs,
224 const Teuchos::ArrayView<const int> & userExportPIDs,
225 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null,
226 const Teuchos::RCP<Teuchos::FancyOStream>& out = Teuchos::null);
227
229 Import<LocalOrdinal,GlobalOrdinal,Node>&
230 operator= (const Import<LocalOrdinal,GlobalOrdinal,Node>& Source) = default;
231
233 virtual ~Import () = default;
234
236
238
247 void
248 findUnionTargetGIDs(Teuchos::Array<GlobalOrdinal>& unionTgtGIDs,
249 Teuchos::Array<std::pair<int,GlobalOrdinal>>& remotePGIDs,
250 typename Teuchos::Array<GlobalOrdinal>::size_type& numSameGIDs,
251 typename Teuchos::Array<GlobalOrdinal>::size_type& numPermuteGIDs,
252 typename Teuchos::Array<GlobalOrdinal>::size_type& numRemoteGIDs,
253 const Teuchos::ArrayView<const GlobalOrdinal>& sameGIDs1,
254 const Teuchos::ArrayView<const GlobalOrdinal>& sameGIDs2,
255 Teuchos::Array<GlobalOrdinal>& permuteGIDs1,
256 Teuchos::Array<GlobalOrdinal>& permuteGIDs2,
257 Teuchos::Array<GlobalOrdinal>& remoteGIDs1,
258 Teuchos::Array<GlobalOrdinal>& remoteGIDs2,
259 Teuchos::Array<int>& remotePIDs1,
260 Teuchos::Array<int>& remotePIDs2) const;
261
295 Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node> >
296 setUnion (const Import<LocalOrdinal, GlobalOrdinal, Node>& rhs) const;
297
314 Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node> >
315 setUnion () const;
316
321 Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node> >
322 createRemoteOnlyImport (const Teuchos::RCP<const map_type>& remoteTarget) const;
323
325
327
350 virtual void
351 describe (Teuchos::FancyOStream& out,
352 const Teuchos::EVerbosityLevel verbLevel =
353 Teuchos::Describable::verbLevel_default) const;
354
370 virtual void print (std::ostream& os) const;
371
373 private:
375
376
393 void
394 init (const Teuchos::RCP<const map_type>& source,
395 const Teuchos::RCP<const map_type>& target,
396 bool useRemotePIDs,
397 Teuchos::Array<int> & remotePIDs,
398 const Teuchos::RCP<Teuchos::ParameterList>& plist);
399
431 void setupSamePermuteRemote (Teuchos::Array<GlobalOrdinal>& remoteGIDs);
432
461 void
462 setupExport (Teuchos::Array<GlobalOrdinal>& remoteGIDs,
463 bool useRemotePIDs, Teuchos::Array<int> & remotePIDs,
464 const Teuchos::RCP<Teuchos::ParameterList>& plist= Teuchos::null);
466
474 Import (const Teuchos::RCP<const map_type>& source,
475 const Teuchos::RCP<const map_type>& target,
476 const size_t numSameID,
477 Teuchos::Array<LocalOrdinal>& permuteToLIDs,
478 Teuchos::Array<LocalOrdinal>& permuteFromLIDs,
479 Teuchos::Array<LocalOrdinal>& remoteLIDs,
480 Teuchos::Array<LocalOrdinal>& exportLIDs,
481 Teuchos::Array<int>& exportPIDs,
482 Distributor& distributor,
483 const Teuchos::RCP<Teuchos::FancyOStream>& out = Teuchos::null,
484 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null);
485
486
487 }; // class Import
488
498 template<class LocalOrdinal, class GlobalOrdinal, class Node>
499 Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node> >
500 createImport (const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> >& src,
501 const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> >& tgt)
502 {
503 if (src == tgt) {
504 return Teuchos::null;
505 }
506#ifdef HAVE_TPETRA_DEBUG
507 TEUCHOS_TEST_FOR_EXCEPTION(
508 src == Teuchos::null || tgt == Teuchos::null, std::runtime_error,
509 "Tpetra::createImport: Neither source nor target Map may be null.");
510#endif // HAVE_TPETRA_DEBUG
511 using import_type = Import<LocalOrdinal, GlobalOrdinal, Node>;
512 return Teuchos::rcp (new import_type (src, tgt));
513 }
514
525 template<class LocalOrdinal, class GlobalOrdinal, class Node>
526 Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node> >
527 createImport (const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> >& src,
528 const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> >& tgt,
529 const Teuchos::RCP<Teuchos::ParameterList>& plist)
530 {
531 if (src == tgt) {
532 return Teuchos::null;
533 }
534#ifdef HAVE_TPETRA_DEBUG
535 TEUCHOS_TEST_FOR_EXCEPTION(
536 src == Teuchos::null || tgt == Teuchos::null, std::runtime_error,
537 "Tpetra::createImport(): neither source nor target map may be null:"
538 << std::endl << "source: " << src << std::endl << "target: " << tgt
539 << std::endl);
540#endif // HAVE_TPETRA_DEBUG
541 typedef Import<LocalOrdinal, GlobalOrdinal, Node> import_type;
542 return Teuchos::rcp (new import_type (src, tgt, plist));
543 }
544
545} // namespace Tpetra
546
547#endif // TPETRA_IMPORT_DECL_HPP
Tpetra_Export_fwd.hpp
Forward declaration of Tpetra::Export.
Tpetra_Import_fwd.hpp
Forward declaration of Tpetra::Import.
Tpetra::CrsMatrixStruct
Struct that holds views of the contents of a CrsMatrix.
Definition TpetraExt_MMHelpers_decl.hpp:36
Tpetra::Details::Transfer
Common base class of Import and Export.
Definition Tpetra_Details_Transfer_decl.hpp:50
Tpetra::Distributor
Sets up and executes a communication plan for a Tpetra DistObject.
Definition Tpetra_Distributor.hpp:104
Tpetra::Export
Communication plan for data redistribution from a (possibly) multiply-owned to a uniquely-owned distr...
Definition Tpetra_Export_decl.hpp:87
Tpetra::Import
Communication plan for data redistribution from a uniquely-owned to a (possibly) multiply-owned distr...
Definition Tpetra_Import_decl.hpp:79
Tpetra::Import::setUnion
Teuchos::RCP< const Import< LocalOrdinal, GlobalOrdinal, Node > > setUnion() const
Return the union of this Import this->getSourceMap()
Definition Tpetra_Import_def.hpp:1653
Tpetra::Import::describe
virtual void describe(Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel=Teuchos::Describable::verbLevel_default) const
Describe this object in a human-readable way to the given output stream.
Definition Tpetra_Import_def.hpp:908
Tpetra::Import::createImport
Teuchos::RCP< const Import< LocalOrdinal, GlobalOrdinal, Node > > createImport(const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &src, const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &tgt, const Teuchos::RCP< Teuchos::ParameterList > &plist)
Nonmember constructor for Import that takes a ParameterList.
Definition Tpetra_Import_decl.hpp:527
Tpetra::Import::createRemoteOnlyImport
Teuchos::RCP< const Import< LocalOrdinal, GlobalOrdinal, Node > > createRemoteOnlyImport(const Teuchos::RCP< const map_type > &remoteTarget) const
Returns an importer that contains only the remote entries of this.
Definition Tpetra_Import_def.hpp:1724
Tpetra::Import::createImport
Teuchos::RCP< const Import< LocalOrdinal, GlobalOrdinal, Node > > createImport(const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &src, const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &tgt)
Nonmember constructor for Import.
Definition Tpetra_Import_decl.hpp:500
Tpetra::Import::findUnionTargetGIDs
void findUnionTargetGIDs(Teuchos::Array< GlobalOrdinal > &unionTgtGIDs, Teuchos::Array< std::pair< int, GlobalOrdinal > > &remotePGIDs, typename Teuchos::Array< GlobalOrdinal >::size_type &numSameGIDs, typename Teuchos::Array< GlobalOrdinal >::size_type &numPermuteGIDs, typename Teuchos::Array< GlobalOrdinal >::size_type &numRemoteGIDs, const Teuchos::ArrayView< const GlobalOrdinal > &sameGIDs1, const Teuchos::ArrayView< const GlobalOrdinal > &sameGIDs2, Teuchos::Array< GlobalOrdinal > &permuteGIDs1, Teuchos::Array< GlobalOrdinal > &permuteGIDs2, Teuchos::Array< GlobalOrdinal > &remoteGIDs1, Teuchos::Array< GlobalOrdinal > &remoteGIDs2, Teuchos::Array< int > &remotePIDs1, Teuchos::Array< int > &remotePIDs2) const
Find the union of the target IDs from two Import objects.
Definition Tpetra_Import_def.hpp:1291
Tpetra::Import::print
virtual void print(std::ostream &os) const
Print the Import's data to the given output stream.
Definition Tpetra_Import_def.hpp:917
Tpetra::Import::~Import
virtual ~Import()=default
Destructor.
Tpetra::Import::operator=
Import< LocalOrdinal, GlobalOrdinal, Node > & operator=(const Import< LocalOrdinal, GlobalOrdinal, Node > &Source)=default
Assignment operator.
Tpetra::Map
A parallel distribution of indices over processes.
Definition Tpetra_Map_decl.hpp:198
Tpetra
Namespace Tpetra contains the class and methods constituting the Tpetra library.
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