146 FactoryMonitor m(*
this,
"Setup for indefinite blocked diagonal smoother", currentLevel);
149 this->GetOStream(
Warnings0) <<
"MueLu::IndefBlockedDiagonalSmoother::Setup(): Setup() has already been called";
152 A_ = Factory::Get<RCP<Matrix> > (currentLevel,
"A");
154 RCP<BlockedCrsMatrix> bA = Teuchos::rcp_dynamic_cast<BlockedCrsMatrix>(A_);
155 TEUCHOS_TEST_FOR_EXCEPTION(bA == Teuchos::null,
Exceptions::BadCast,
"MueLu::IndefBlockedDiagonalSmoother::Setup: input matrix A is not of type BlockedCrsMatrix! error.");
158 rangeMapExtractor_ = bA->getRangeMapExtractor();
159 domainMapExtractor_ = bA->getDomainMapExtractor();
162 Teuchos::RCP<Matrix> A00 = bA->getMatrix(0, 0);
163 Teuchos::RCP<Matrix> A01 = bA->getMatrix(0, 1);
164 Teuchos::RCP<Matrix> A10 = bA->getMatrix(1, 0);
165 Teuchos::RCP<Matrix> A11 = bA->getMatrix(1, 1);
199 RCP<const FactoryManagerBase> velpredictFactManager = FactManager_.at(0);
201 velPredictSmoo_ = currentLevel.
Get< RCP<SmootherBase> >(
"PreSmoother",velpredictFactManager->GetFactory(
"Smoother").get());
204 RCP<const FactoryManagerBase> schurFactManager = FactManager_.at(1);
206 schurCompSmoo_ = currentLevel.
Get< RCP<SmootherBase> >(
"PreSmoother", schurFactManager->GetFactory(
"Smoother").get());
216 Teuchos::RCP<Teuchos::FancyOStream> fos = Teuchos::getFancyOStream(Teuchos::rcpFromRef(std::cout));
218 SC zero = Teuchos::ScalarTraits<SC>::zero(), one = Teuchos::ScalarTraits<SC>::one();
225 bool bRangeThyraMode = rangeMapExtractor_->getThyraMode();
226 bool bDomainThyraMode = domainMapExtractor_->getThyraMode();
229 RCP<MultiVector> rcpX = Teuchos::rcpFromRef(X);
230 RCP<const MultiVector> rcpB = Teuchos::rcpFromRef(B);
233 bool bCopyResultX =
false;
234 RCP<BlockedCrsMatrix> bA = Teuchos::rcp_dynamic_cast<BlockedCrsMatrix>(A_);
236 RCP<BlockedMultiVector> bX = Teuchos::rcp_dynamic_cast<BlockedMultiVector>(rcpX);
237 RCP<const BlockedMultiVector> bB = Teuchos::rcp_dynamic_cast<const BlockedMultiVector>(rcpB);
239 if(bX.is_null() ==
true) {
240 RCP<MultiVector> test = Teuchos::rcp(
new BlockedMultiVector(bA->getBlockedDomainMap(),rcpX));
245 if(bB.is_null() ==
true) {
246 RCP<const MultiVector> test = Teuchos::rcp(
new BlockedMultiVector(bA->getBlockedRangeMap(),rcpB));
251 bX = Teuchos::rcp_dynamic_cast<BlockedMultiVector>(rcpX);
252 bB = Teuchos::rcp_dynamic_cast<const BlockedMultiVector>(rcpB);
255 RCP<Xpetra::ReorderedBlockedCrsMatrix<Scalar,LocalOrdinal,GlobalOrdinal,Node> > rbA = Teuchos::rcp_dynamic_cast<Xpetra::ReorderedBlockedCrsMatrix<Scalar,LocalOrdinal,GlobalOrdinal,Node> >(bA);
256 if(rbA.is_null() ==
false) {
258 Teuchos::RCP<const Xpetra::BlockReorderManager > brm = rbA->getBlockReorderManager();
261 if(bX->getBlockedMap()->getNumMaps() != bA->getDomainMapExtractor()->NumMaps()) {
263 Teuchos::RCP<MultiVector> test =
264 buildReorderedBlockedMultiVector(brm, bX);
267 if(bB->getBlockedMap()->getNumMaps() != bA->getRangeMapExtractor()->NumMaps()) {
269 Teuchos::RCP<const MultiVector> test =
270 buildReorderedBlockedMultiVector(brm, bB);
279 RCP<MultiVector> residual = MultiVectorFactory::Build(rcpB->getMap(), rcpB->getNumVectors());
280 RCP<BlockedMultiVector> bresidual = Teuchos::rcp_dynamic_cast<BlockedMultiVector>(residual);
281 Teuchos::RCP<MultiVector> r1 = bresidual->getMultiVector(0,bRangeThyraMode);
282 Teuchos::RCP<MultiVector> r2 = bresidual->getMultiVector(1,bRangeThyraMode);
285 RCP<MultiVector> xtilde = MultiVectorFactory::Build(rcpX->getMap(), rcpX->getNumVectors());
286 RCP<BlockedMultiVector> bxtilde = Teuchos::rcp_dynamic_cast<BlockedMultiVector>(xtilde);
287 RCP<MultiVector> xtilde1 = bxtilde->getMultiVector(0,bDomainThyraMode);
288 RCP<MultiVector> xtilde2 = bxtilde->getMultiVector(1,bDomainThyraMode);
293 residual->update(one,*rcpB,zero);
294 A_->apply(*rcpX, *residual, Teuchos::NO_TRANS, -one, one);
304 bxtilde->putScalar(zero);
305 velPredictSmoo_->Apply(*xtilde1,*r1);
309 schurCompSmoo_->Apply(*xtilde2,*r2);
312 rcpX->update(omega,*bxtilde,one);
314 Teuchos::RCP<MultiVector> x1 = domainMapExtractor_->ExtractVector(rcpX, 0, bDomainThyraMode);
315 Teuchos::RCP<MultiVector> x2 = domainMapExtractor_->ExtractVector(rcpX, 1, bDomainThyraMode);
319 x1->update(omega,*xtilde1,one);
320 x2->update(omega,*xtilde2,one);
323 domainMapExtractor_->InsertVector(x1, 0, rcpX, bDomainThyraMode);
324 domainMapExtractor_->InsertVector(x2, 1, rcpX, bDomainThyraMode);
328 if (bCopyResultX ==
true) {
329 RCP<MultiVector> Xmerged = bX->Merge();
330 X.update(one, *Xmerged, zero);