11 #include "Teuchos_GlobalMPISession.hpp"
22 Real
value(
const std::vector<Real> &x, Real &tol ) {
23 Real half(0.5), quad(0);
24 unsigned size = x.size();
25 for (
unsigned i = 0; i < size; i++ ) {
31 void gradient( std::vector<Real> &g,
const std::vector<Real> &x, Real &tol ) {
32 g.assign(x.begin(),x.end());
35 void hessVec( std::vector<Real> &hv,
const std::vector<Real> &v,
const std::vector<Real> &x, Real &tol ) {
36 hv.assign(v.begin(),v.end());
43 Real
value(
const std::vector<Real> &x, Real &tol ) {
45 unsigned size = x.size();
46 for (
unsigned i = 0; i < size; i++ ) {
52 void gradient( std::vector<Real> &g,
const std::vector<Real> &x, Real &tol ) {
56 void hessVec( std::vector<Real> &hv,
const std::vector<Real> &v,
const std::vector<Real> &x, Real &tol ) {
57 hv.assign(x.size(),0);
64 Real
value(
const std::vector<Real> &x, Real &tol ) {
65 return std::log(x[0]) * std::exp(x[1]);
68 void gradient( std::vector<Real> &g,
const std::vector<Real> &x, Real &tol ) {
69 g[0] = std::exp(x[1])/x[0];
70 g[1] = std::exp(x[1]) * std::log(x[0]);
73 void hessVec( std::vector<Real> &hv,
const std::vector<Real> &v,
const std::vector<Real> &x, Real &tol ) {
74 Real H11 = -std::exp(x[1])/(x[0]*x[0]);
75 Real H12 = std::exp(x[1])/x[0];
76 Real H21 = std::exp(x[1])/x[0];
77 Real H22 = std::exp(x[1]) * std::log(x[0]);
78 hv[0] = H11*v[0] + H12*v[1];
79 hv[1] = H21*v[0] + H22*v[1];
84 unsigned dim = x.size();
85 for (
unsigned i = 0; i <
dim; i++ ) {
90 int main(
int argc,
char* argv[]) {
92 Teuchos::GlobalMPISession mpiSession(&argc, &argv);
95 int iprint = argc - 1;
96 ROL::Ptr<std::ostream> outStream;
99 outStream = ROL::makePtrFromRef(std::cout);
101 outStream = ROL::makePtrFromRef(bhs);
111 ROL::Ptr<std::vector<RealT> > x_ptr = ROL::makePtr<std::vector<RealT>>(
dim,0.0);
112 ROL::Ptr<ROL::Vector<RealT> > x = ROL::makePtr<ROL::StdVector<RealT>>(x_ptr);
114 ROL::Ptr<std::vector<RealT> > d_ptr = ROL::makePtr<std::vector<RealT>>(
dim,0.0);
115 ROL::Ptr<ROL::Vector<RealT> > d = ROL::makePtr<ROL::StdVector<RealT>>(d_ptr);
118 std::vector<ROL::Ptr<ROL::Objective<RealT> > > vec_obj(2,ROL::nullPtr);
119 vec_obj[0] = ROL::makePtr<ObjectiveFunctionTest07_1<RealT>>();
120 vec_obj[1] = ROL::makePtr<ObjectiveFunctionTest07_2<RealT>>();
121 ROL::Ptr<ROL::StdObjective<RealT> > obj_scalarize
122 = ROL::makePtr<ObjectiveFunctionTest07_scalarize<RealT>>();
123 ROL::Ptr<ROL::Objective<RealT> > obj
124 = ROL::makePtr<ROL::CompositeObjective<RealT>>(vec_obj,obj_scalarize);
126 *outStream <<
"Check Derivatives of CompositeObjective\n";
127 obj->checkGradient(*x,*d,
true,*outStream);
128 obj->checkHessVec(*x,*d,
true,*outStream);
130 catch (std::logic_error& err) {
131 *outStream << err.what() <<
"\n";
136 std::cout <<
"End Result: TEST FAILED\n";
138 std::cout <<
"End Result: TEST PASSED\n";
void hessVec(std::vector< Real > &hv, const std::vector< Real > &v, const std::vector< Real > &x, Real &tol)
void setRandomVector(std::vector< RealT > &x)
Real value(const std::vector< Real > &x, Real &tol)
Real value(const std::vector< Real > &x, Real &tol)
void hessVec(std::vector< Real > &hv, const std::vector< Real > &v, const std::vector< Real > &x, Real &tol)
Defines a no-output stream class ROL::NullStream and a function makeStreamPtr which either wraps a re...
void hessVec(std::vector< Real > &hv, const std::vector< Real > &v, const std::vector< Real > &x, Real &tol)
void gradient(std::vector< Real > &g, const std::vector< Real > &x, Real &tol)
void gradient(std::vector< Real > &g, const std::vector< Real > &x, Real &tol)
Specializes the ROL::Objective interface for objective functions that operate on ROL::StdVector's.
basic_nullstream< char, char_traits< char >> nullstream
int main(int argc, char *argv[])
Real value(const std::vector< Real > &x, Real &tol)
void gradient(std::vector< Real > &g, const std::vector< Real > &x, Real &tol)