/usr/include/trilinos/ROL_ScalarMinimizationTest.hpp is in libtrilinos-rol-dev 12.12.1-5.
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// ************************************************************************
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// Rapid Optimization Library (ROL) Package
// Copyright (2014) Sandia Corporation
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#ifndef ROL_SCALARMINIMIZATIONTEST_H
#define ROL_SCALARMINIMIZATIONTEST_H
/** \class ROL::ScalarMinimizationTest
\brief Tests the minimization of scalar functions.
*/
#include "ROL_BrentsScalarMinimization.hpp"
#include "ROL_BisectionScalarMinimization.hpp"
#include "ROL_GoldenSectionScalarMinimization.hpp"
#include "ROL_ScalarFunction.hpp"
#include "Teuchos_ParameterList.hpp"
#include "Teuchos_RCP.hpp"
#include <iostream>
namespace ROL {
template<class Real>
class ScalarMinimizationTest {
private:
Teuchos::RCP<ScalarMinimization<Real> > algo_;
public:
virtual ~ScalarMinimizationTest(void) {}
ScalarMinimizationTest(Teuchos::ParameterList &parlist) {
std::string type = parlist.sublist("Scalar Minimization").get("Type","Brent's");
if ( type == "Brent's" ) {
algo_ = Teuchos::rcp(new BrentsScalarMinimization<Real>(parlist));
}
else if ( type == "Bisection" ) {
algo_ = Teuchos::rcp(new BisectionScalarMinimization<Real>(parlist));
}
else if ( type == "Golden Section" ) {
algo_ = Teuchos::rcp(new GoldenSectionScalarMinimization<Real>(parlist));
}
else {
TEUCHOS_TEST_FOR_EXCEPTION(true, std::invalid_argument,
">>> (ROL::ScalarMinimizationTest): Undefined ScalarMinimization type!");
}
}
virtual bool test(std::ostream &stream = std::cout) = 0;
protected:
void run(Real &fx, Real &x, int &nfval, int &ngrad,
ScalarFunction<Real> &f,
const Real &A, const Real &B) {
algo_->run(fx, x, nfval, ngrad, f, A, B);
}
};
}
#endif
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