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// LOCA: Library of Continuation Algorithms Package
// Copyright (2005) Sandia Corporation
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#ifndef LOCA_STATUSTEST_COMBO_H
#define LOCA_STATUSTEST_COMBO_H
#include "LOCA_StatusTest_Abstract.H" // base class
#include "Teuchos_RCP.hpp"
#include "LOCA_GlobalData.H"
namespace LOCA {
namespace StatusTest {
/*!
\brief Arbitrary combination of status tests.
In the \c AND (see LOCA::StatusTest::Combo::ComboType) combination, the
result is \c Unconverged (see LOCA::StatusTest::StatusType) if \e any of
the tests is \c Unconverged. Otherwise, the result is equal to the
result of the \e first test in the list that is either \c Converged
or \c Failed. It is not recommended to mix \c Converged and \c
Failed tests in an \c AND combination.
In the \c OR combination, the result is \c Unconverged if \e all of
the tests are \c Unconverged. Otherwise, it is the result of the \e
first test in the list that is either \c Converged or \c
Failed. Therefore, it will generally make sense to put the \c Failed
-type tests at the end of the \c OR list.
\note We call checkStatus on \e every convergence test, though some
may be called with the LOCA::StatusTest::None option.
*/
class Combo : public Abstract {
public:
/*!
\brief The test can be either the AND of all the component tests,
or the OR of all the component tests.
*/
enum ComboType {
//! Logically "AND" together the results of the tests in this combination
AND,
//! Logically "OR" together the results of the tests in this combination
OR
};
//! Constructor. Optional argument is the error stream for output.
Combo( ComboType t,
const Teuchos::RCP<const LOCA::GlobalData> globalDataPtr = Teuchos::null );
//! Constructor with a single test.
Combo(ComboType t,
const Teuchos::RCP<Abstract>& a,
const Teuchos::RCP<const LOCA::GlobalData> globalDataPtr = Teuchos::null );
//! Constructor with two tests.
Combo( ComboType t,
const Teuchos::RCP<Abstract>& a,
const Teuchos::RCP<Abstract>& b,
const Teuchos::RCP<const LOCA::GlobalData> globalDataPtr = Teuchos::null );
//! Add another test to this combination.
/*!
Calls isSafe() to determine if it is safe to add \c a to the combination.
*/
virtual Combo& addStatusTest(const Teuchos::RCP<Abstract>& a);
//! Destructor
virtual ~Combo();
/*!
\brief Tests stopping criterion.
See addOp() and orOp() for details.
*/
virtual LOCA::StatusTest::StatusType
// checkStatus( const LOCA::Stepper & stepper,
checkStatus( const LOCA::Abstract::Iterator & stepper,
LOCA::StatusTest::CheckType checkType
);
virtual LOCA::StatusTest::StatusType getStatus() const;
virtual std::ostream& print( std::ostream& stream,
int indent = 0
) const;
protected:
//! Use this for checkStatus when this is an OR type combo. Updates LOCA::StatusTest::Combo::status.
/*!
If there is a combination of LOCA::StatusTest::Failed and
LOCA::StatusTest::Converged in the tests that are OR'd together,
the value of status for this test is set to the status of the
first test it encounters which is not LOCA::Status::Unconverged. The
tests are evaluated in the order that they were added to the
combination.
\note We compute the status of all tests in the combination for
the sake of completeness, even if we could determine the status of
this combination test without that check.
*/
virtual void
// orOp( const LOCA::Stepper & stepper,
orOp( const LOCA::Abstract::Iterator & stepper,
LOCA::StatusTest::CheckType checkType);
//! Use this for checkStatus when this is an AND type combo. Updates LOCA::StatusTest::Combo::status.
/*!
If any tests are LOCA::StatusTest::Unconverged, then the status of
this test is LOCA::StatusTest::Unconverged. If there is a
combination of LOCA::StatusTest::Failed and
LOCA::StatusTest::Converged in the tests that are AND'd together,
the value of status for this test is set to the status of the
first test it encounters. The tests are evaluated in the
order that they were added to the combination.
\note We compute the status of all tests in the combination for
the sake of completeness, even if we could determine the status of
this combination test without that check.
*/
virtual void
// andOp( const LOCA::Stepper & stepper,
andOp( const LOCA::Abstract::Iterator & stepper,
LOCA::StatusTest::CheckType checkType );
/*! \brief Check whether or not it is safe to add \c a to this list
of tests.
This is necessary to avoid any infinite recursions
(i.e., a test cannot own a copy of itself).
*/
bool isSafe(Abstract& a);
private:
//! Type of test
const ComboType type;
//! Vector of generic status tests
std::vector<Teuchos::RCP<Abstract> > tests;
//! Status
LOCA::StatusTest::StatusType status;
//! Ostream used to print errors
Teuchos::RCP<const LOCA::GlobalData> globalDataPtr_;
}; // class Combo
} // namespace Status
} // namespace LOCA
#endif
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