Teko_GaussSeidelPreconditionerFactory.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_GaussSeidelPreconditionerFactory_hpp__
#define __Teko_GaussSeidelPreconditionerFactory_hpp__
 
#include "Teuchos_RCP.hpp"
 
#include "Teko_BlockPreconditionerFactory.hpp"
#include "Teko_BlockInvDiagonalStrategy.hpp"
#include "Teko_Utilities.hpp"
 
namespace Teko {
 
typedef enum {GS_UseLowerTriangle,GS_UseUpperTriangle} TriSolveType;
 
class GaussSeidelPreconditionerFactory : public BlockPreconditionerFactory {
   public:
  
 
 
      GaussSeidelPreconditionerFactory(TriSolveType solveType,const LinearOp & invD0,const LinearOp & invD1);
 
      GaussSeidelPreconditionerFactory(TriSolveType solveType,const RCP<const BlockInvDiagonalStrategy> & strategy);
 
      GaussSeidelPreconditionerFactory();
 
 
      LinearOp buildPreconditionerOperator(BlockedLinearOp & blo,BlockPreconditionerState & state) const;
 
   protected: 
      using BlockPreconditionerFactory::buildPreconditionerOperator;
 
      Teuchos::RCP<const BlockInvDiagonalStrategy> invOpsStrategy_;
      TriSolveType solveType_;
 
      virtual void initializeFromParameterList(const Teuchos::ParameterList & pl);
};
 
} // end namespace Teko
 
#endif