/usr/include/trilinos/Teko_JacobiPreconditionerFactory.hpp is in libtrilinos-teko-dev 12.4.2-2.
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// Teko: A package for block and physics based preconditioning
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#ifndef __Teko_JacobiPreconditionerFactory_hpp__
#define __Teko_JacobiPreconditionerFactory_hpp__
#include "Teuchos_RCP.hpp"
#include "Teko_BlockPreconditionerFactory.hpp"
#include "Teko_BlockInvDiagonalStrategy.hpp"
namespace Teko {
/** A block diagonal preconditioner.
*
* The use must specify an iverse for each diagonal.
* If a specific integer is not specified, then the default
* "Inverse Type" is used.
\code
<Parameter name="Type" type="string" value="Block Jacobi"/>
<Parameter name="Inverse Type" type="string" value="<Some Inverse Factory>"/>
<Parameter name="Inverse Type 1" type="string" value="<Some Inverse Factory>"/>
<Parameter name="Inverse Type 2" type="string" value="<Some Inverse Factory>"/>
<Parameter name="Inverse Type 3" type="string" value="<Some Inverse Factory>"/>
<Parameter name="Inverse Type 4" type="string" value="<Some Inverse Factory>"/>
<Parameter name="Inverse Type 5" type="string" value="<Some Inverse Factory>"/>
\endcode
*/
class JacobiPreconditionerFactory : public BlockPreconditionerFactory {
public:
//! @name Constructors.
//@{
/** Construct a PreconditionerFactory assuming a specific block
* \f$2\times2\f$ matrix. This case is a simple one.
*/
JacobiPreconditionerFactory(const LinearOp & invD0,const LinearOp & invD1);
/** The most flexible JacobiPreconditionerFactory constructor.
* Pass in a generally defined BlockInvDiagonalStrategy to use the
* full generality of this class.
*/
JacobiPreconditionerFactory(const RCP<const BlockInvDiagonalStrategy> & strategy);
/** Build an empty Jacobi preconditioner factory.
*/
JacobiPreconditionerFactory();
//@}
/** \brief Create the Jacobi preconditioner operator.
*
* This method breaks apart the BlockLinearOp and builds a block
* diagonal preconditioner. The inverse of the diagonals are specified
* by the BlockInvDiagonalStrategy object.
*/
LinearOp buildPreconditionerOperator(BlockedLinearOp & blo,BlockPreconditionerState & state) const;
//! Get inv diagonal strategy
Teuchos::RCP<const BlockInvDiagonalStrategy> getInvDiagStrategy() const
{ return invOpsStrategy_; }
protected:
//! some members
Teuchos::RCP<const BlockInvDiagonalStrategy> invOpsStrategy_;
//! Initialize from a parameter list
virtual void initializeFromParameterList(const Teuchos::ParameterList & pl);
};
} // end namespace Teko
#endif
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