/usr/include/trilinos/Teko_InterlacedEpetra.hpp is in libtrilinos-teko-dev 12.4.2-2.
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// Teko: A package for block and physics based preconditioning
// Copyright 2010 Sandia Corporation
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#ifndef __Teko_InterlacedEpetra_hpp__
#define __Teko_InterlacedEpetra_hpp__
// Teuchos includes
#include "Teuchos_RCP.hpp"
// include basic Epetra information
#ifdef HAVE_MPI
#include "Epetra_MpiComm.h"
#else
#include "Epetra_SerialComm.h"
#endif
#include "Epetra_Map.h"
#include "Epetra_CrsMatrix.h"
#include "Epetra_MultiVector.h"
#include "Epetra_Vector.h"
#include "Epetra_Export.h"
#include "Epetra_Import.h"
#include <vector>
namespace Teko {
namespace Epetra {
namespace Strided {
/** Build maps to make other conversions. This functions build maps assuming
* that there are number of variables and you want to break them all up
* into single blocks.
*
* \param[in] numGlobals The number of global unknowns in the original map
* \param[in] numVars The number of sub maps to build
* \param[in] comm Communicator to use in construction of the maps
* \param[in,out] subMaps The maps for each block of unknowns. This vector
* will be of length <code>numVars</code>. The integer
* in the pair is the number of local variables being
* represented. For this function it will always be 1.
* The map itself will contain the global indices from
* the original problem. This is useful for Export/Import
* operations. The RCP for the map contains another map
* associated with the string "contigMap" based on a
* contiguous unknown numbering.
*
* \note <code> numGlobals % numVars == 0 </code>
*/
void buildSubMaps(int numGlobals,int numVars,const Epetra_Comm & comm,
std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps);
/** Build maps to make other conversions. This functions build maps assuming
* that there are number of variables and you want to break them all up
* into blocks with sizes (in the number of varaibles) specified in <code>vars</code>
*
* \param[in] numGlobals The number of global unknowns in the original map
* \param[in] vars Breakdown of each varaible to build.
* \param[in] comm Communicator to use in construction of the maps
* \param[in,out] subMaps The maps for each block of unknowns. This vector
* will be of length <code>vars.size()</code>. The integer
* in the pair is the number of local variables being
* represented (this will be from <code>vars</code>).
* The map itself will contain the global indices from
* the original problem. This is useful for Export/Import
* operations. The RCP for the map contains another map
* associated with the string "contigMap" based on a
* contiguous unknown numbering.
*
* \note <code> numGlobals % sum(vars) == 0 </code>
*/
void buildSubMaps(int numGlobals,const std::vector<int> & vars,const Epetra_Comm & comm,
std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps);
/** Build maps to make other conversions. This functions build maps assuming
* that there are number of variables and you want to break them all up
* into blocks with sizes (in the number of varaibles) specified in <code>vars</code>
*
* \param[in] numGlobals The number of global unknowns in the original map
* \param[in] numMyElements Number of nodes in this processor.
* \param[in] minMyGID Minimum global ID on this processor.
* \param[in] vars Breakdown of each varaible to build.
* \param[in] comm Communicator to use in construction of the maps
* \param[in,out] subMaps The maps for each block of unknowns. This vector
* will be of length <code>vars.size()</code>. The integer
* in the pair is the number of local variables being
* represented (this will be from <code>vars</code>).
* The map itself will contain the global indices from
* the original problem. This is useful for Export/Import
* operations. The RCP for the map contains another map
* associated with the string "contigMap" based on a
* contiguous unknown numbering.
*
* \note <code> numGlobals % sum(vars) == 0 </code>
*/
void buildSubMaps(int numGlobals,int numMyElements,int minMyGID,const std::vector<int> & vars,const Epetra_Comm & comm,
std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps);
/** Build maps to make other conversions. This functions build maps assuming
* that there are number of variables and you want to break them all up
* into blocks with sizes (in the number of varaibles) specified in <code>vars</code>
*
* \param[in] globalMap Parent map that describes the parallel layout of the new
* sub maps.
* \param[in] vars Breakdown of each varaible to build.
* \param[in] comm Communicator to use in construction of the maps
* \param[in,out] subMaps The maps for each block of unknowns. This vector
* will be of length <code>vars.size()</code>. The integer
* in the pair is the number of local variables being
* represented (this will be from <code>vars</code>).
* The map itself will contain the global indices from
* the original problem. This is useful for Export/Import
* operations. The RCP for the map contains another map
* associated with the string "contigMap" based on a
* contiguous unknown numbering.
*
* \note <code> numGlobals % sum(vars) == 0 </code>
*/
void buildSubMaps(const Epetra_Map & globalMap,const std::vector<int> & vars,const Epetra_Comm & comm,
std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps);
// build conversion import and export operators
void buildExportImport(const Epetra_Map & baseMap,
const std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps,
std::vector<Teuchos::RCP<Epetra_Export> > & subExport,
std::vector<Teuchos::RCP<Epetra_Import> > & subImport);
// build a vector of subVectors
void buildSubVectors(const std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps,
std::vector<Teuchos::RCP<Epetra_MultiVector> > & subVectors,int count);
/** Associate a set of multi-vectors with a set of sub maps (this modifies the "extra data"
* of the subVectors to contain info about the maps.
*/
void associateSubVectors(const std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps,
std::vector<Teuchos::RCP<const Epetra_MultiVector> > & subVectors);
// build a single subblock Epetra_CrsMatrix
Teuchos::RCP<Epetra_CrsMatrix> buildSubBlock(int i,int j,const Epetra_CrsMatrix & A,
const std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps);
// Rebuild a single subblock of a matrix
void rebuildSubBlock(int i,int j,const Epetra_CrsMatrix & A,
const std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & subMaps,Epetra_CrsMatrix & mat);
// copy contents of many subvectors to a single vector
void many2one(Epetra_MultiVector & one, const std::vector<Teuchos::RCP<const Epetra_MultiVector> > & many,
const std::vector<Teuchos::RCP<Epetra_Export> > & subExport);
// copy contents of a single vector to many subvectors
void one2many(std::vector<Teuchos::RCP<Epetra_MultiVector> > & many,const Epetra_MultiVector & single,
const std::vector<Teuchos::RCP<Epetra_Import> > & subImport);
}
} // end namespace Epetra
} // end namespace Teko
#endif
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