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
74template <class LocalOrdinal,
75 class GlobalOrdinal,
76 class Node>
77class Import : public ::Tpetra::Details::Transfer<LocalOrdinal, GlobalOrdinal, Node> {
78 private:
79 friend class Export<LocalOrdinal, GlobalOrdinal, Node>;
80 using base_type =
81 ::Tpetra::Details::Transfer<LocalOrdinal, GlobalOrdinal, Node>;
82
83 public:
85 using map_type = ::Tpetra::Map<LocalOrdinal, GlobalOrdinal, Node>;
86
88
89
97 Import(const Teuchos::RCP<const map_type>& source,
98 const Teuchos::RCP<const map_type>& target);
99
110 Import(const Teuchos::RCP<const map_type>& source,
111 const Teuchos::RCP<const map_type>& target,
112 const Teuchos::RCP<Teuchos::FancyOStream>& out);
113
126 Import(const Teuchos::RCP<const map_type>& source,
127 const Teuchos::RCP<const map_type>& target,
128 const Teuchos::RCP<Teuchos::ParameterList>& plist);
129
145 Import(const Teuchos::RCP<const map_type>& source,
146 const Teuchos::RCP<const map_type>& target,
147 const Teuchos::RCP<Teuchos::FancyOStream>& out,
148 const Teuchos::RCP<Teuchos::ParameterList>& plist);
149
161 Import(const Teuchos::RCP<const map_type>& source,
162 const Teuchos::RCP<const map_type>& target,
163 Teuchos::Array<int>& remotePIDs,
164 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::rcp(new Teuchos::ParameterList));
165
170 Import(const Import<LocalOrdinal, GlobalOrdinal, Node>& importer);
171
178 Import(const Export<LocalOrdinal, GlobalOrdinal, Node>& exporter);
179
210 Import(const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node>>& sourceMap,
211 const GlobalOrdinal targetMapRemoteOrPermuteGlobalIndices[],
212 const int targetMapRemoteOrPermuteProcessRanks[],
213 const LocalOrdinal numTargetMapRemoteOrPermuteGlobalIndices,
214 const bool mayReorderTargetMapIndicesLocally,
215 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null,
216 const Teuchos::RCP<Teuchos::FancyOStream>& out = Teuchos::null);
217
219 Import(const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node>>& source,
220 const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node>>& target,
221 const Teuchos::ArrayView<int>& remotePIDs,
222 const Teuchos::ArrayView<const LocalOrdinal>& userExportLIDs,
223 const Teuchos::ArrayView<const int>& userExportPIDs,
224 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null,
225 const Teuchos::RCP<Teuchos::FancyOStream>& out = Teuchos::null);
226
228 Import<LocalOrdinal, GlobalOrdinal, Node>&
229 operator=(const Import<LocalOrdinal, GlobalOrdinal, Node>& Source) = default;
230
232 virtual ~Import() = default;
233
235
237
246 void
247 findUnionTargetGIDs(Teuchos::Array<GlobalOrdinal>& unionTgtGIDs,
248 Teuchos::Array<std::pair<int, GlobalOrdinal>>& remotePGIDs,
249 typename Teuchos::Array<GlobalOrdinal>::size_type& numSameGIDs,
250 typename Teuchos::Array<GlobalOrdinal>::size_type& numPermuteGIDs,
251 typename Teuchos::Array<GlobalOrdinal>::size_type& numRemoteGIDs,
252 const Teuchos::ArrayView<const GlobalOrdinal>& sameGIDs1,
253 const Teuchos::ArrayView<const GlobalOrdinal>& sameGIDs2,
254 Teuchos::Array<GlobalOrdinal>& permuteGIDs1,
255 Teuchos::Array<GlobalOrdinal>& permuteGIDs2,
256 Teuchos::Array<GlobalOrdinal>& remoteGIDs1,
257 Teuchos::Array<GlobalOrdinal>& remoteGIDs2,
258 Teuchos::Array<int>& remotePIDs1,
259 Teuchos::Array<int>& remotePIDs2) const;
260
294 Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node>>
295 setUnion(const Import<LocalOrdinal, GlobalOrdinal, Node>& rhs) const;
296
313 Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node>>
314 setUnion() const;
315
320 Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node>>
321 createRemoteOnlyImport(const Teuchos::RCP<const map_type>& remoteTarget) const;
322
324
326
349 virtual void
350 describe(Teuchos::FancyOStream& out,
351 const Teuchos::EVerbosityLevel verbLevel =
352 Teuchos::Describable::verbLevel_default) const;
353
369 virtual void print(std::ostream& os) const;
370
372 private:
374
375
392 void
393 init(const Teuchos::RCP<const map_type>& source,
394 const Teuchos::RCP<const map_type>& target,
395 bool useRemotePIDs,
396 Teuchos::Array<int>& remotePIDs,
397 const Teuchos::RCP<Teuchos::ParameterList>& plist);
398
430 void setupSamePermuteRemote(Teuchos::Array<GlobalOrdinal>& remoteGIDs);
431
460 void
461 setupExport(Teuchos::Array<GlobalOrdinal>& remoteGIDs,
462 bool useRemotePIDs, Teuchos::Array<int>& remotePIDs,
463 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null);
465
473 Import(const Teuchos::RCP<const map_type>& source,
474 const Teuchos::RCP<const map_type>& target,
475 const size_t numSameID,
476 Teuchos::Array<LocalOrdinal>& permuteToLIDs,
477 Teuchos::Array<LocalOrdinal>& permuteFromLIDs,
478 Teuchos::Array<LocalOrdinal>& remoteLIDs,
479 Teuchos::Array<LocalOrdinal>& exportLIDs,
480 Teuchos::Array<int>& exportPIDs,
481 Distributor& distributor,
482 const Teuchos::RCP<Teuchos::FancyOStream>& out = Teuchos::null,
483 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null);
484
485}; // class Import
486
496template <class LocalOrdinal, class GlobalOrdinal, class Node>
497Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node>>
498createImport(const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node>>& src,
499 const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node>>& tgt) {
500 if (src == tgt) {
501 return Teuchos::null;
502 }
503#ifdef HAVE_TPETRA_DEBUG
504 TEUCHOS_TEST_FOR_EXCEPTION(
505 src == Teuchos::null || tgt == Teuchos::null, std::runtime_error,
506 "Tpetra::createImport: Neither source nor target Map may be null.");
507#endif // HAVE_TPETRA_DEBUG
508 using import_type = Import<LocalOrdinal, GlobalOrdinal, Node>;
509 return Teuchos::rcp(new import_type(src, tgt));
510}
511
522template <class LocalOrdinal, class GlobalOrdinal, class Node>
523Teuchos::RCP<const Import<LocalOrdinal, GlobalOrdinal, Node>>
524createImport(const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node>>& src,
525 const Teuchos::RCP<const Map<LocalOrdinal, GlobalOrdinal, Node>>& tgt,
526 const Teuchos::RCP<Teuchos::ParameterList>& plist) {
527 if (src == tgt) {
528 return Teuchos::null;
529 }
530#ifdef HAVE_TPETRA_DEBUG
531 TEUCHOS_TEST_FOR_EXCEPTION(
532 src == Teuchos::null || tgt == Teuchos::null, std::runtime_error,
533 "Tpetra::createImport(): neither source nor target map may be null:"
534 << std::endl
535 << "source: " << src << std::endl
536 << "target: " << tgt
537 << std::endl);
538#endif // HAVE_TPETRA_DEBUG
539 typedef Import<LocalOrdinal, GlobalOrdinal, Node> import_type;
540 return Teuchos::rcp(new import_type(src, tgt, plist));
541}
542
543} // namespace Tpetra
544
545#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:47
Tpetra::Distributor
Sets up and executes a communication plan for a Tpetra DistObject.
Definition Tpetra_Distributor.hpp:105
Tpetra::Export
Communication plan for data redistribution from a (possibly) multiply-owned to a uniquely-owned distr...
Definition Tpetra_Export_decl.hpp:86
Tpetra::Import
Communication plan for data redistribution from a uniquely-owned to a (possibly) multiply-owned distr...
Definition Tpetra_Import_decl.hpp:77
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:1609
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:883
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:524
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:1679
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:498
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:1254
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:891
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:197
Tpetra
Namespace Tpetra contains the class and methods constituting the Tpetra library.
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