ROL
ROL_HS28.hpp
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50#ifndef ROL_HS28_HPP
51#define ROL_HS28_HPP
52
53#include "ROL_StdVector.hpp"
54#include "ROL_TestProblem.hpp"
55#include "ROL_Types.hpp"
56#include "ROL_StdObjective.hpp"
57#include "ROL_StdConstraint.hpp"
58
59namespace ROL {
60namespace ZOO {
61
68template<class Real>
69class Objective_HS28 : public StdObjective<Real> {
70public:
71 Real value( const std::vector<Real> &x, Real &tol ) {
72 const Real two(2);
73 return std::pow(x[0]+x[1],two) + std::pow(x[1]+x[2],two);
74 }
75
76 void gradient( std::vector<Real> &g, const std::vector<Real> &x, Real &tol ) {
77 const Real two(2);
78 g[0] = two*(x[0]+x[1]);
79 g[1] = two*(x[0]+x[1]) + two*(x[1]+x[2]);
80 g[2] = two*(x[1]+x[2]);
81 }
82
83 void hessVec( std::vector<Real> &hv, const std::vector<Real> &v, const std::vector<Real> &x, Real &tol ) {
84 const Real two(2);
85 hv[0] = two*v[0] + two*v[1];
86 hv[1] = two*v[0] + two*two*v[1] + two*v[2];
87 hv[2] = two*v[1] + two*v[2];
88 }
89};
90
91template<class Real>
92class Constraint_HS28 : public StdConstraint<Real> {
93public:
95
96 void value( std::vector<Real> &c, const std::vector<Real> &x, Real &tol ) {
97 const Real c1(1), c2(2), c3(3);
98 c[0] = c1*x[0]+c2*x[1]+c3*x[2]-c1;
99 }
100
101 void applyJacobian(std::vector<Real> &jv, const std::vector<Real> &v,
102 const std::vector<Real> &x, Real &tol) {
103 const Real c1(1), c2(2), c3(3);
104 jv[0] = c1*v[0]+c2*v[1]+c3*v[2];
105 }
106
107 void applyAdjointJacobian( std::vector<Real> &ajv, const std::vector<Real> &v,
108 const std::vector<Real> &x, Real &tol ) {
109 const Real c1(1), c2(2), c3(3);
110 ajv[0] = c1*v[0];
111 ajv[1] = c2*v[0];
112 ajv[2] = c3*v[0];
113 }
114
115 void applyAdjointHessian(std::vector<Real> &ahuv, const std::vector<Real> &u,
116 const std::vector<Real> &v, const std::vector<Real> &x,
117 Real &tol) {
118 ahuv.assign(ahuv.size(),static_cast<Real>(0));
119 }
120
121
122};
123
124template<class Real>
125class getHS28 : public TestProblem<Real> {
126public:
127 getHS28(void) {}
128
129 Ptr<Objective<Real>> getObjective(void) const {
130 return ROL::makePtr<Objective_HS28<Real>>();
131 }
132
133 Ptr<Vector<Real>> getInitialGuess(void) const {
134 int n = 3;
135 ROL::Ptr<std::vector<Real>> xp = ROL::makePtr<std::vector<Real>>(n,0.0);
136 (*xp)[0] = static_cast<Real>(-4);
137 (*xp)[1] = static_cast<Real>(1);
138 (*xp)[2] = static_cast<Real>(1);
139 return ROL::makePtr<StdVector<Real>>(xp);
140 }
141
142 Ptr<Vector<Real>> getSolution(const int i = 0) const {
143 int n = 3;
144 ROL::Ptr<std::vector<Real>> xp = ROL::makePtr<std::vector<Real>>(n,0.0);
145 (*xp)[0] = static_cast<Real>(0.5);
146 (*xp)[1] = static_cast<Real>(-0.5);
147 (*xp)[2] = static_cast<Real>(0.5);
148 return ROL::makePtr<StdVector<Real>>(xp);
149 }
150
151 Ptr<Constraint<Real>> getEqualityConstraint(void) const {
152 return ROL::makePtr<Constraint_HS28<Real>>();
153 }
154
155 Ptr<Vector<Real>> getEqualityMultiplier(void) const {
156 int n = 1;
157 return ROL::makePtr<StdVector<Real>>(n,0.0);
158 }
159};
160
161} // End ZOO Namespace
162} // End ROL Namespace
163
164#endif
Contains definitions of test objective functions.
Contains definitions of custom data types in ROL.
Defines the equality constraint operator interface for StdVectors.
Specializes the ROL::Objective interface for objective functions that operate on ROL::StdVector's.
void applyJacobian(std::vector< Real > &jv, const std::vector< Real > &v, const std::vector< Real > &x, Real &tol)
Definition ROL_HS28.hpp:101
void applyAdjointHessian(std::vector< Real > &ahuv, const std::vector< Real > &u, const std::vector< Real > &v, const std::vector< Real > &x, Real &tol)
Definition ROL_HS28.hpp:115
void applyAdjointJacobian(std::vector< Real > &ajv, const std::vector< Real > &v, const std::vector< Real > &x, Real &tol)
Definition ROL_HS28.hpp:107
void value(std::vector< Real > &c, const std::vector< Real > &x, Real &tol)
Definition ROL_HS28.hpp:96
W. Hock and K. Schittkowski 28th test function.
Definition ROL_HS28.hpp:69
void gradient(std::vector< Real > &g, const std::vector< Real > &x, Real &tol)
Definition ROL_HS28.hpp:76
Real value(const std::vector< Real > &x, Real &tol)
Definition ROL_HS28.hpp:71
void hessVec(std::vector< Real > &hv, const std::vector< Real > &v, const std::vector< Real > &x, Real &tol)
Definition ROL_HS28.hpp:83
Ptr< Vector< Real > > getSolution(const int i=0) const
Definition ROL_HS28.hpp:142
Ptr< Objective< Real > > getObjective(void) const
Definition ROL_HS28.hpp:129
Ptr< Constraint< Real > > getEqualityConstraint(void) const
Definition ROL_HS28.hpp:151
Ptr< Vector< Real > > getInitialGuess(void) const
Definition ROL_HS28.hpp:133
Ptr< Vector< Real > > getEqualityMultiplier(void) const
Definition ROL_HS28.hpp:155