/usr/include/trilinos/Stokhos_AbstractPreconditionerFactory.hpp is in libtrilinos-stokhos-dev 12.4.2-2.
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#ifndef STOKHOS_ABSTRACT_PRECONDITIONER_FACTORY_HPP
#define STOKHOS_ABSTRACT_PRECONDITIONER_FACTORY_HPP
#include "Teuchos_RCP.hpp"
#include "Epetra_Operator.h"
namespace Stokhos {
//! An abstract class to represent a generic preconditioner factory.
class AbstractPreconditionerFactory {
public:
//! Constructor
AbstractPreconditionerFactory() {}
//! Destructor
virtual ~AbstractPreconditionerFactory() {}
//! Compute preconditioner operator
virtual Teuchos::RCP<Epetra_Operator>
compute(const Teuchos::RCP<Epetra_Operator>& mat,
bool compute_prec = true) = 0;
//! Recompute preconditioner operator for a new matrix
virtual void
recompute(const Teuchos::RCP<Epetra_Operator>& mat,
const Teuchos::RCP<Epetra_Operator>& prec) = 0;
}; // class PreconditionerFactory
} // namespace Stokhos
#endif // STOKHOS_ABSTRACT_PRECONDITIONER_FACTORY_HPP
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