Teko Version of the Day
Teko_ReorderedMappingStrategy.cpp
00001 /*
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00005 // 
00006 //      Teko: A package for block and physics based preconditioning
00007 //                  Copyright 2010 Sandia Corporation 
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00009 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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00045 */
00046 
00047 #include "Epetra/Teko_ReorderedMappingStrategy.hpp"
00048 
00049 #include "Teko_BlockedReordering.hpp"
00050 
00051 using Teuchos::RCP;
00052 using Teuchos::rcp;
00053 using Teuchos::rcp_dynamic_cast;
00054 using Teuchos::rcpFromRef;
00055 
00056 namespace Teko {
00057 namespace Epetra {
00058 
00059 ReorderedMappingStrategy::ReorderedMappingStrategy(const BlockReorderManager & brm,const Teuchos::RCP<const MappingStrategy> & map)
00060    : reorderManager_(brm), mapStrategy_(map)
00061 {
00062    rangeMap_ = mapStrategy_->rangeMap();
00063    domainMap_ = mapStrategy_->domainMap();
00064 }
00065 
00066 void ReorderedMappingStrategy::copyEpetraIntoThyra(const Epetra_MultiVector& X,
00067                                                  const Teuchos::Ptr<Thyra::MultiVectorBase<double> > & thyra_X) const
00068 {
00069    using Teuchos::ptr_const_cast;
00070    using Teuchos::rcp_const_cast;
00071 
00072    // first flatten the vector: notice this just works on the block structure
00073    RCP<Thyra::ProductMultiVectorBase<double> > prod_X = rcp_dynamic_cast<Thyra::ProductMultiVectorBase<double> >(rcpFromRef(*thyra_X));
00074    RCP<Thyra::MultiVectorBase<double> > flat_X = buildFlatMultiVector(reorderManager_,prod_X);
00075 
00076    // now use the underlying mapping strategy to copy the flat vector 
00077    mapStrategy_->copyEpetraIntoThyra(X,flat_X.ptr());
00078 }
00079 
00080 void ReorderedMappingStrategy::copyThyraIntoEpetra(const RCP<const Thyra::MultiVectorBase<double> > & thyra_Y,
00081                                                  Epetra_MultiVector& Y) const 
00082 {
00083    // first flatten the vector: notice this just works on the block structure
00084    RCP<const Thyra::ProductMultiVectorBase<double> > prod_Y = rcp_dynamic_cast<const Thyra::ProductMultiVectorBase<double> >(rcpFromRef(*thyra_Y));
00085    RCP<const Thyra::MultiVectorBase<double> > flat_Y = buildFlatMultiVector(reorderManager_,prod_Y);
00086 
00087    // now use the underlying mapping strategy to copy the flat vector 
00088    mapStrategy_->copyThyraIntoEpetra(flat_Y,Y);
00089 }
00090 
00091 } // end namespace Epetra
00092 } // end namespace Teko
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