/usr/include/trilinos/Xpetra_MapExtractor.hpp is in libtrilinos-xpetra-dev 12.10.1-3.
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//
// ***********************************************************************
//
// Xpetra: A linear algebra interface package
// Copyright 2012 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// 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,
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// 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
// Jonathan Hu (jhu@sandia.gov)
// Andrey Prokopenko (aprokop@sandia.gov)
// Ray Tuminaro (rstumin@sandia.gov)
//
// ***********************************************************************
//
// @HEADER
#ifndef XPETRA_MAPEXTRACTOR_HPP_
#define XPETRA_MAPEXTRACTOR_HPP_
#include <map>
#include <iostream>
#include <Teuchos_RCP.hpp>
#include <Teuchos_Describable.hpp>
#include <Xpetra_Import.hpp>
#include <Xpetra_Map.hpp>
#include <Xpetra_Import.hpp>
#include <Xpetra_ImportFactory.hpp>
#include <Xpetra_MapFactory.hpp>
#include <Xpetra_MapUtils.hpp>
#include <Xpetra_MultiVector.hpp>
#include <Xpetra_MultiVectorFactory.hpp>
#include <Xpetra_Vector.hpp>
#include <Xpetra_VectorFactory.hpp>
namespace Xpetra {
#ifndef DOXYGEN_SHOULD_SKIP_THIS
// forward declaration of BlockedMultiVector, needed to prevent circular inclusions
template<class S, class LO, class GO, class N> class BlockedMultiVector;
#endif
template <class Scalar,
class LocalOrdinal,
class GlobalOrdinal,
class Node>
class MapExtractor : public Teuchos::Describable {
public:
typedef Scalar scalar_type;
typedef LocalOrdinal local_ordinal_type;
typedef GlobalOrdinal global_ordinal_type;
typedef Node node_type;
private:
#undef XPETRA_MAPEXTRACTOR_SHORT
#include "Xpetra_UseShortNames.hpp"
public:
//! MapExtractor basic constructor
//!
//! @param[in] fullmap Full map containing all GIDs throughout the full vector. This parameter is only important if bThyraMode == false (see below)
//! @param[in] maps Vector containing submaps. The set of all GIDs stored in the submaps should be the same than stored in fullmap, if bThyraMode == false. In Thyra mode, the submaps should contain consecutive GIDs starting with 0 in each submap.
//! @param[in] bThyraMode Flag which allows to switch between generating a MapExtractor in Thyra mode or Xpetra mode
//!
//! In Thyra mode, fullmap is not important as a fullmap with unique blocked GIDs is automatically generated which map the GIDs of the submaps
//! to uniquely defined GIDs in the fullmap. The user has to provide a fullmap in Thyra mode to specify the underlying linear algebra library
//! (Epetra or Tpetra) and some other map information (e.g. indexBase). This could be fixed.
//!
//! In Xpetra mode, the fullmap has to be the same as the union of the GIDs stored in the submaps in maps. The intersection of the GIDs of the sub-
//! maps in maps must be empty.
MapExtractor(const RCP<const Map>& fullmap, const std::vector<RCP<const Map> >& maps, bool bThyraMode = false) {
bThyraMode_ = bThyraMode;
if(bThyraMode == false) {
// use Xpetra-style numbering for sub-block maps
// That is, all sub-block maps have unique GIDs which may not be contiguous and start with GIDs different than zero.
// plausibility check
size_t numAllElements = 0;
for(size_t v = 0; v < maps.size(); ++v) {
numAllElements += maps[v]->getGlobalNumElements();
}
TEUCHOS_TEST_FOR_EXCEPTION(fullmap->getGlobalNumElements() != numAllElements, std::logic_error,
"logic error. full map and sub maps have not same number of elements. We cannot build MapExtractor with Xpetra-style numbering. Please make sure that you want Xpetra-style numbering instead of Thyra-style numbering.");
fullmap_ = fullmap;
maps_ = maps;
} else {
//std::cout << "Create Map Extractor in Thyra Mode!!! " << std::endl;
// use Thyra-style numbering for sub-block maps
// That is, all sub-block maps start with zero as GID and are contiguous
// plausibility check
for(size_t v = 0; v < maps.size(); ++v) {
TEUCHOS_TEST_FOR_EXCEPTION(maps[v]->getMinAllGlobalIndex() != 0, std::logic_error,
"logic error. When using Thyra-style numbering all sub-block maps must start with zero as GID. Map block " << v << " starts with GID " << maps[v]->getMinAllGlobalIndex());
}
// store submaps in Thyra-style ordering
thyraMaps_ = maps;
// get offsets
std::vector<GlobalOrdinal> gidOffsets(maps.size(),0);
for(size_t v = 1; v < maps.size(); ++v) {
gidOffsets[v] = maps[v-1]->getMaxAllGlobalIndex() + gidOffsets[v-1] + 1;
}
// build submaps
maps_.resize(maps.size());
std::vector<GlobalOrdinal> fullMapGids;
const GO INVALID = Teuchos::OrdinalTraits<Xpetra::global_size_t>::invalid();
for(size_t v = 0; v < maps.size(); ++v) {
std::vector<GlobalOrdinal> subMapGids(maps[v]->getNodeNumElements(),0);
for (LocalOrdinal l = 0; l < Teuchos::as<LocalOrdinal>(maps[v]->getNodeNumElements()); ++l) {
GlobalOrdinal myGid = maps[v]->getGlobalElement(l);
subMapGids[l] = myGid + gidOffsets[v];
fullMapGids.push_back(myGid + gidOffsets[v]);
}
//std::sort(subMapGids.begin(), subMapGids.end());
//subMapGids.erase(std::unique(subMapGids.begin(), subMapGids.end()), subMapGids.end());
Teuchos::ArrayView<GlobalOrdinal> subMapGidsView(&subMapGids[0], subMapGids.size());
Teuchos::RCP<Map> mySubMap = Xpetra::MapFactory<LocalOrdinal,GlobalOrdinal,Node>::Build(maps[v]->lib(), INVALID, subMapGidsView, maps[v]->getIndexBase(), maps[v]->getComm());
maps_[v] = mySubMap;
}
//const GO INVALID = Teuchos::OrdinalTraits<Xpetra::global_size_t>::invalid();
//std::sort(coarseMapGids.begin(), coarseMapGids.end());
//coarseMapGids.erase(std::unique(coarseMapGids.begin(), coarseMapGids.end()), coarseMapGids.end());
//Teuchos::ArrayView<GO> coarseMapGidsView(&coarseMapGids[0], coarseMapGids.size());
//std::sort(fullMapGids.begin(), fullMapGids.end());
//fullMapGids.erase(std::unique(fullMapGids.begin(), fullMapGids.end()), fullMapGids.end());
Teuchos::ArrayView<GlobalOrdinal> fullMapGidsView(&fullMapGids[0], fullMapGids.size());
fullmap_ = MapFactory::Build(fullmap->lib(), INVALID, fullMapGidsView, fullmap->getIndexBase(), fullmap->getComm());
// plausibility check
size_t numAllElements = 0;
for(size_t v = 0; v < maps_.size(); ++v) {
numAllElements += maps_[v]->getGlobalNumElements();
}
TEUCHOS_TEST_FOR_EXCEPTION(fullmap_->getGlobalNumElements() != numAllElements, std::logic_error,
"logic error. full map and sub maps have not same number of elements. This cannot be. Please report the bug to the Xpetra developers!");
}
// build importers for sub maps
importers_.resize(maps_.size());
for (unsigned i = 0; i < maps_.size(); ++i)
if (maps[i] != null)
importers_[i] = Xpetra::ImportFactory<LocalOrdinal,GlobalOrdinal,Node>::Build(fullmap_, maps_[i]);
TEUCHOS_TEST_FOR_EXCEPTION(CheckConsistency() == false, std::logic_error,
"logic error. full map and sub maps are inconsistently distributed over the processors.");
}
//! Expert constructor for Thyra maps
MapExtractor(const std::vector<RCP<const Map> >& maps, const std::vector<RCP<const Map> >& thyramaps) {
bThyraMode_ = true;
// plausibility check
TEUCHOS_TEST_FOR_EXCEPTION(thyramaps.size() != maps.size(), std::logic_error, "logic error. The number of submaps must be identical!");
for(size_t v = 0; v < thyramaps.size(); ++v) {
TEUCHOS_TEST_FOR_EXCEPTION(thyramaps[v]->getMinAllGlobalIndex() != 0, std::logic_error,
"logic error. When using Thyra-style numbering all sub-block maps must start with zero as GID.");
TEUCHOS_TEST_FOR_EXCEPTION(thyramaps[v]->getNodeNumElements() != maps[v]->getNodeNumElements(), std::logic_error,
"logic error. The size of the submaps must be identical (same distribution, just different GIDs)");
}
// store user-provided maps and thyramaps
thyraMaps_ = thyramaps;
maps_ = maps;
fullmap_ = Xpetra::MapUtils<LocalOrdinal,GlobalOrdinal,Node>::concatenateMaps(maps);
// plausibility check
size_t numAllElements = 0;
for(size_t v = 0; v < maps_.size(); ++v) {
numAllElements += maps_[v]->getGlobalNumElements();
}
TEUCHOS_TEST_FOR_EXCEPTION(fullmap_->getGlobalNumElements() != numAllElements, std::logic_error,
"logic error. full map and sub maps have not same number of elements. This cannot be. Please report the bug to the Xpetra developers!");
// build importers for sub maps
importers_.resize(maps_.size());
for (unsigned i = 0; i < maps_.size(); ++i)
if (maps[i] != null)
importers_[i] = Xpetra::ImportFactory<LocalOrdinal,GlobalOrdinal,Node>::Build(fullmap_, maps_[i]);
TEUCHOS_TEST_FOR_EXCEPTION(CheckConsistency() == false, std::logic_error,
"logic error. full map and sub maps are inconsistently distributed over the processors.");
}
//! copy constructor
MapExtractor(const MapExtractor& input) {
bThyraMode_ = input.getThyraMode();
fullmap_ = MapFactory::Build(input.getFullMap(),1);
maps_.resize(input.NumMaps(), Teuchos::null);
if(bThyraMode_ == true)
thyraMaps_.resize(input.NumMaps(), Teuchos::null);
for(size_t i = 0; i < input.NumMaps(); ++i) {
maps_[i] = MapFactory::Build(input.getMap(i,false),1);
if(bThyraMode_ == true)
thyraMaps_[i] = MapFactory::Build(input.getMap(i,true),1);
}
// plausibility check
size_t numAllElements = 0;
for(size_t v = 0; v < maps_.size(); ++v) {
numAllElements += maps_[v]->getGlobalNumElements();
}
TEUCHOS_TEST_FOR_EXCEPTION(fullmap_->getGlobalNumElements() != numAllElements, std::logic_error,
"logic error. full map and sub maps have not same number of elements. This cannot be. Please report the bug to the Xpetra developers!");
// build importers for sub maps
importers_.resize(maps_.size());
for (unsigned i = 0; i < maps_.size(); ++i)
if (maps_[i] != null)
importers_[i] = Xpetra::ImportFactory<LocalOrdinal,GlobalOrdinal,Node>::Build(fullmap_, maps_[i]);
TEUCHOS_TEST_FOR_EXCEPTION(CheckConsistency() == false, std::logic_error,
"logic error. full map and sub maps are inconsistently distributed over the processors.");
}
/** \name Extract subblocks from full map */
//@{
void ExtractVector(const Vector& full, size_t block, Vector& partial) const {
XPETRA_TEST_FOR_EXCEPTION(block >= maps_.size(), std::out_of_range, "ExtractVector: Error, block = " << block << " is too big. The MapExtractor only contains " << maps_.size() << " partial blocks.");
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"ExtractVector: maps_[" << block << "] is null");
partial.doImport(full, *importers_[block], Xpetra::INSERT);
}
void ExtractVector(const MultiVector& full, size_t block, MultiVector& partial) const {
XPETRA_TEST_FOR_EXCEPTION(block >= maps_.size(), std::out_of_range, "ExtractVector: Error, block = " << block << " is too big. The MapExtractor only contains " << maps_.size() << " partial blocks.");
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"ExtractVector: maps_[" << block << "] is null");
partial.doImport(full, *importers_[block], Xpetra::INSERT);
}
void ExtractVector(RCP<const Vector>& full, size_t block, RCP< Vector>& partial) const { ExtractVector(*full, block, *partial); }
void ExtractVector(RCP< Vector>& full, size_t block, RCP< Vector>& partial) const { ExtractVector(*full, block, *partial); }
void ExtractVector(RCP<const MultiVector>& full, size_t block, RCP<MultiVector>& partial) const { ExtractVector(*full, block, *partial); }
void ExtractVector(RCP< MultiVector>& full, size_t block, RCP<MultiVector>& partial) const { ExtractVector(*full, block, *partial); }
RCP< Vector> ExtractVector(RCP<const Vector>& full, size_t block, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(block >= maps_.size(), std::out_of_range, "ExtractVector: Error, block = " << block << " is too big. The MapExtractor only contains " << maps_.size() << " partial blocks.");
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"ExtractVector: maps_[" << block << "] is null");
// first extract partial vector from full vector (using xpetra style GIDs)
const RCP<Vector> vv = VectorFactory::Build(getMap(block,false), false);
ExtractVector(*full, block, *vv);
if(bThyraMode == false) return vv;
TEUCHOS_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::ExtractVector: ExtractVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");
#if 1
vv->replaceMap(getMap(block,true)); // switch to Thyra-style map
return vv;
#else
const RCP<Vector> thyraVec = VectorFactory::Build(getMap(block,true), true);
// TODO introduce Kokkos version of this.
Teuchos::ArrayRCP<Scalar> thyraVecData = thyraVec->getDataNonConst(0);
Teuchos::ArrayRCP<const Scalar> xpetraVecData = vv->getData(0);
for(size_t i=0; i < vv->getLocalLength(); i++) {
thyraVecData[i] = xpetraVecData[i];
}
return thyraVec;
#endif
}
RCP< Vector> ExtractVector(RCP< Vector>& full, size_t block, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(block >= maps_.size(), std::out_of_range, "ExtractVector: Error, block = " << block << " is too big. The MapExtractor only contains " << maps_.size() << " partial blocks.");
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"ExtractVector: maps_[" << block << "] is null");
// first extract partial vector from full vector (using xpetra style GIDs)
const RCP<Vector> vv = VectorFactory::Build(getMap(block,false), false);
ExtractVector(*full, block, *vv);
if(bThyraMode == false) return vv;
TEUCHOS_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::ExtractVector: ExtractVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");
#if 1
vv->replaceMap(getMap(block,true)); // switch to Thyra-style map
return vv;
#else
const RCP<Vector> thyraVec = VectorFactory::Build(getMap(block,true), true);
// TODO introduce Kokkos version of this.
Teuchos::ArrayRCP<Scalar> thyraVecData = thyraVec->getDataNonConst(0);
Teuchos::ArrayRCP<const Scalar> xpetraVecData = vv->getData(0);
for(size_t i=0; i < vv->getLocalLength(); i++) {
thyraVecData[i] = xpetraVecData[i];
}
return thyraVec;
#endif
}
RCP<MultiVector> ExtractVector(RCP<const MultiVector>& full, size_t block, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(block >= maps_.size(), std::out_of_range, "ExtractVector: Error, block = " << block << " is too big. The MapExtractor only contains " << maps_.size() << " partial blocks.");
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"ExtractVector: maps_[" << block << "] is null");
// first extract partial vector from full vector (using xpetra style GIDs)
const RCP<MultiVector> vv = MultiVectorFactory::Build(getMap(block,false), full->getNumVectors(), false);
ExtractVector(*full, block, *vv);
if(bThyraMode == false) return vv;
TEUCHOS_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::ExtractVector: ExtractVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");
#if 1
vv->replaceMap(getMap(block,true)); // switch to Thyra-style map
return vv;
#else
const RCP<MultiVector> thyraVec = MultiVectorFactory::Build(getMap(block,true), vv->getNumVectors(), true);
// TODO introduce Kokkos version of this.
for(size_t k=0; k < vv->getNumVectors(); k++) {
Teuchos::ArrayRCP<Scalar> thyraVecData = thyraVec->getDataNonConst(k);
Teuchos::ArrayRCP<const Scalar> xpetraVecData = vv->getData(k);
for(size_t i=0; i < vv->getLocalLength(); i++) {
thyraVecData[i] = xpetraVecData[i];
}
}
return thyraVec;
#endif
}
RCP<MultiVector> ExtractVector(RCP< MultiVector>& full, size_t block, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(block >= maps_.size(), std::out_of_range, "ExtractVector: Error, block = " << block << " is too big. The MapExtractor only contains " << maps_.size() << " partial blocks.");
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"ExtractVector: maps_[" << block << "] is null");
// first extract partial vector from full vector (using xpetra style GIDs)
const RCP<MultiVector> vv = MultiVectorFactory::Build(getMap(block,false), full->getNumVectors(), false);
ExtractVector(*full, block, *vv);
if(bThyraMode == false) return vv;
TEUCHOS_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::ExtractVector: ExtractVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");
#if 1
vv->replaceMap(getMap(block,true)); // switch to Thyra-style map
return vv;
#else
const RCP<MultiVector> thyraVec = MultiVectorFactory::Build(getMap(block,true), vv->getNumVectors(), true);
// TODO introduce Kokkos version of this.
for(size_t k=0; k < vv->getNumVectors(); k++) {
Teuchos::ArrayRCP<Scalar> thyraVecData = thyraVec->getDataNonConst(k);
Teuchos::ArrayRCP<const Scalar> xpetraVecData = vv->getData(k);
for(size_t i=0; i < vv->getLocalLength(); i++) {
thyraVecData[i] = xpetraVecData[i];
}
}
return thyraVec;
#endif
}
RCP<MultiVector> ExtractVector(RCP<const BlockedMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >& full, size_t block, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(block >= maps_.size(), std::out_of_range, "ExtractVector: Error, block = " << block << " is too big. The MapExtractor only contains " << maps_.size() << " partial blocks.");
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"ExtractVector: maps_[" << block << "] is null");
XPETRA_TEST_FOR_EXCEPTION(NumMaps() != full->getMapExtractor()->NumMaps(), Xpetra::Exceptions::RuntimeError,
"ExtractVector: Number of blocks in map extractor is " << NumMaps() << " but should be " << full->getMapExtractor()->NumMaps() << " (number of blocks in BlockedMultiVector)");
Teuchos::RCP<MultiVector> vv = full->getMultiVector(block,bThyraMode);
return vv;
}
RCP<MultiVector> ExtractVector(RCP< Xpetra::BlockedMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >& full, size_t block, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(block >= maps_.size(), std::out_of_range, "ExtractVector: Error, block = " << block << " is too big. The MapExtractor only contains " << maps_.size() << " partial blocks.");
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"ExtractVector: maps_[" << block << "] is null");
XPETRA_TEST_FOR_EXCEPTION(NumMaps() != full->getMapExtractor()->NumMaps(), Xpetra::Exceptions::RuntimeError,
"ExtractVector: Number of blocks in map extractor is " << NumMaps() << " but should be " << full->getMapExtractor()->NumMaps() << " (number of blocks in BlockedMultiVector)");
Teuchos::RCP<MultiVector> vv = full->getMultiVector(block,bThyraMode);
return vv;
}
//@}
/** \name Insert subblocks into full map */
//@{
void InsertVector(const Vector& partial, size_t block, Vector& full, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"InsertVector: maps_[" << block << "] is null");
XPETRA_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::InsertVector: InsertVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");
if(bThyraMode) {
#if 1
// Temporarily replace underlying map.
// Since the partial vector is given by reference we have to switch back to the original map
RCP<const MultiVector> rcpPartial = Teuchos::rcpFromRef(partial);
RCP<MultiVector> rcpNonConstPartial = Teuchos::rcp_const_cast<MultiVector>(rcpPartial);
RCP<const Map> oldMap = rcpNonConstPartial->getMap(); // temporarely store map of partial
rcpNonConstPartial->replaceMap(getMap(block,false)); // temporarely switch to xpetra-style map
full.doExport(*rcpNonConstPartial, *importers_[block], Xpetra::INSERT);
rcpNonConstPartial->replaceMap(oldMap); // change map back to original map
#else
const RCP<Vector> xpetraVec = VectorFactory::Build(getMap(block,false), true); // get sub vector in xpetra-style numbering
// TODO introduce Kokkos version of this.
Teuchos::ArrayRCP<const Scalar> thyraVecData = partial.getData(0);
Teuchos::ArrayRCP<Scalar> xpetraVecData = xpetraVec->getDataNonConst(0);
for(size_t i=0; i < xpetraVec->getLocalLength(); i++) {
xpetraVecData[i] = thyraVecData[i];
}
full.doExport(*xpetraVec, *importers_[block], Xpetra::INSERT);
#endif
} else {
// Xpetra style numbering
full.doExport(partial, *importers_[block], Xpetra::INSERT);
}
}
void InsertVector(const MultiVector& partial, size_t block, MultiVector& full, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"InsertVector: maps_[" << block << "] is null");
XPETRA_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::InsertVector: InsertVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");
if(bThyraMode) {
#if 1
// Temporarily replace underlying map.
// Since the partial vector is given by reference we have to switch back to the original map
RCP<const MultiVector> rcpPartial = Teuchos::rcpFromRef(partial);
RCP<MultiVector> rcpNonConstPartial = Teuchos::rcp_const_cast<MultiVector>(rcpPartial);
RCP<const Map> oldMap = rcpNonConstPartial->getMap(); // temporarely store map of partial
rcpNonConstPartial->replaceMap(getMap(block,false)); // temporarely switch to xpetra-style map
full.doExport(*rcpNonConstPartial, *importers_[block], Xpetra::INSERT);
rcpNonConstPartial->replaceMap(oldMap); // change map back to original map
#else
const RCP<MultiVector> xpetraVec = MultiVectorFactory::Build(getMap(block,false), partial.getNumVectors(), true); // get sub vector in xpetra-style numbering
// TODO introduce Kokkos version of this.
for(size_t k=0; k < partial.getNumVectors(); k++) {
Teuchos::ArrayRCP<const Scalar> thyraVecData = partial.getData(k);
Teuchos::ArrayRCP<Scalar> xpetraVecData = xpetraVec->getDataNonConst(k);
for(size_t i=0; i < xpetraVec->getLocalLength(); i++) {
xpetraVecData[i] = thyraVecData[i];
}
}
full.doExport(*xpetraVec, *importers_[block], Xpetra::INSERT);
#endif
} else {
// Xpetra style numbering
full.doExport(partial, *importers_[block], Xpetra::INSERT);
}
}
void InsertVector(RCP<const Vector> partial, size_t block, RCP< Vector> full, bool bThyraMode = false) const { InsertVector(*partial, block, *full, bThyraMode); }
void InsertVector(RCP< Vector> partial, size_t block, RCP< Vector> full, bool bThyraMode = false) const { InsertVector(*partial, block, *full, bThyraMode); }
void InsertVector(RCP<const MultiVector> partial, size_t block, RCP<MultiVector> full, bool bThyraMode = false) const { InsertVector(*partial, block, *full, bThyraMode); }
void InsertVector(RCP< MultiVector> partial, size_t block, RCP<MultiVector> full, bool bThyraMode = false) const { InsertVector(*partial, block, *full, bThyraMode); }
void InsertVector(RCP<const MultiVector> partial, size_t block, RCP<Xpetra::BlockedMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > full, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"InsertVector: maps_[" << block << "] is null");
/*TEUCHOS_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::InsertVector: InsertVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");*/
full->setMultiVector(block, partial, bThyraMode);
}
void InsertVector(RCP< MultiVector> partial, size_t block, RCP<Xpetra::BlockedMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > full, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION(maps_[block] == null, Xpetra::Exceptions::RuntimeError,
"InsertVector: maps_[" << block << "] is null");
/*TEUCHOS_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::InsertVector: InsertVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");*/
full->setMultiVector(block, partial, bThyraMode);
}
//@}
RCP< Vector> getVector(size_t i, bool bThyraMode = false, bool bZero = true) const {
XPETRA_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::getVector: getVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");
return VectorFactory::Build(getMap(i, bThyraMode), bZero);
}
RCP<MultiVector> getVector(size_t i, size_t numvec, bool bThyraMode = false, bool bZero = true) const {
XPETRA_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::getVector: getVector in Thyra-style numbering only possible if MapExtractor has been created using Thyra-style numbered submaps.");
return MultiVectorFactory::Build(getMap(i, bThyraMode), numvec, bZero);
}
/// returns true, if sub maps are stored in Thyra-style numbering
bool getThyraMode() const { return bThyraMode_; }
/** \name Maps */
//@{
/// number of partial maps
size_t NumMaps() const { return maps_.size(); }
/// get the map
/// returns the sub map i from list of sub maps
/// depending on the parameter bThyraMode the sub map that is returned uses Thyra or Xpetra numbering
/// Note: Thyra-numbering is only allowed if the MapExtractor is also constructed using Thyra numbering
const RCP<const Map> getMap(size_t i, bool bThyraMode = false) const {
XPETRA_TEST_FOR_EXCEPTION( i >= NumMaps(), Xpetra::Exceptions::RuntimeError, "MapExtractor::getMap: tried to access block " << i << ", but MapExtractor has only " << NumMaps() << " blocks! Block indices must be between 0 and " << NumMaps() - 1 << ".");
if(bThyraMode_ == true && bThyraMode == true)
return thyraMaps_[i];
XPETRA_TEST_FOR_EXCEPTION(bThyraMode_ == false && bThyraMode == true, Xpetra::Exceptions::RuntimeError,
"MapExtractor::getMap: cannot return sub map in Thyra-style numbering if MapExtractor object is not created using Thyra-style numbered submaps.");
return maps_[i];
}
/// the full map
const RCP<const Map> getFullMap() const { return fullmap_; }
/// returns map index in map extractor which contains GID
size_t getMapIndexForGID(GlobalOrdinal gid) const {
for (size_t i = 0; i < NumMaps(); i++)
if (getMap(i)->isNodeGlobalElement(gid) == true)
return i;
TEUCHOS_TEST_FOR_EXCEPTION(false, Xpetra::Exceptions::RuntimeError,
"getMapIndexForGID: GID " << gid << " is not contained by a map in mapextractor." );
return 0;
}
//@}
private:
bool CheckConsistency() const {
const RCP<const Map> fullMap = getFullMap();
for (size_t i = 0; i < NumMaps(); i++) {
const RCP<const Map> map = getMap(i);
ArrayView<const GlobalOrdinal> mapGids = map->getNodeElementList();
for (typename ArrayView< const GlobalOrdinal >::const_iterator it = mapGids.begin(); it != mapGids.end(); it++)
if (fullMap->isNodeGlobalElement(*it) == false)
return false; // Global ID (*it) not found locally on this proc in fullMap -> error
}
return true;
}
private:
RCP<const Map > fullmap_;
std::vector<RCP<const Map> > maps_;
std::vector<RCP<Import > > importers_;
bool bThyraMode_; //< boolean flag: use Thyra numbering for local sub-block maps. default = false (for Xpetra mode)
std::vector<RCP<const Map> > thyraMaps_; //< store Thyra-style numbering maps here in Thyra mode. In Xpetra mode this vector is empty.
};
}
#define XPETRA_MAPEXTRACTOR_SHORT
#endif /* XPETRA_MAPEXTRACTOR_HPP_ */
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