ROL
vector/test_06.cpp
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43
49#include "ROL_StdVector.hpp"
50#include "ROL_Zakharov.hpp"
51#include "ROL_Algorithm.hpp"
53#include "ROL_StatusTest.hpp"
54#include "ROL_Stream.hpp"
55
56#include "Teuchos_GlobalMPISession.hpp"
57
58typedef int OrdinalT;
59typedef double RealT;
60
61template<>
64
65int main(int argc, char *argv[]) {
66
67
68 using ROL::ParameterList;
69
70 typedef std::vector<RealT> vector;
71
72 typedef ROL::Vector<RealT> V;
73 typedef ROL::StdVector<RealT> SV;
74
75 Teuchos::GlobalMPISession mpiSession(&argc, &argv,0);
76
77 int iprint = argc - 1;
78 ROL::Ptr<std::ostream> outStream;
79 ROL::nullstream bhs; // outputs nothing
80 if (iprint > 0)
81 outStream = ROL::makePtrFromRef(std::cout);
82 else
83 outStream = ROL::makePtrFromRef(bhs);
84
85 int errorFlag = 0;
86
87 try {
88 // Dimension of the optimization vector
89 int dim = 10;
90
91 std::string paramfile = "parameters.xml";
92 auto parlist = ROL::getParametersFromXmlFile(paramfile);
93
94 // Define algorithm.
95 ROL::Ptr<ROL::Step<RealT>>
96 step = ROL::makePtr<ROL::TrustRegionStep<RealT>>(*parlist);
97 ROL::Ptr<ROL::StatusTest<RealT>>
98 status = ROL::makePtr<ROL::StatusTest<RealT>>(*parlist);
99 ROL::Algorithm<RealT> algo(step,status,false);
100
101 ROL::Ptr<vector> x_ptr = ROL::makePtr<vector>(dim,1.0);
102 ROL::Ptr<vector> k_ptr = ROL::makePtr<vector>(dim);
103
104 for(int i=0;i<dim;++i) {
105 (*k_ptr)[i] = 1.0 + i;
106 }
107
108 ROL::Ptr<V> xs = ROL::makePtr<SV>(x_ptr);
109 ROL::Ptr<V> ks = ROL::makePtr<SV>(k_ptr);
110
111 // Create ProfiledVector objects
113 ROL::Ptr<V> kpf = ROL::makePtr<ROL::ProfiledVector<int,RealT>>(ks);
114
116
117 // Run algorithm.
118 algo.run(xpf, obj, true, *outStream);
119
120 // Display number of function calls
121 ROL::printVectorFunctionCalls(xpf, *outStream);
122 }
123
124 catch (std::logic_error& err) {
125 *outStream << err.what() << "\n";
126 errorFlag = -1000;
127 }; // end try
128
129 if (errorFlag != 0)
130 std::cout << "End Result: TEST FAILED\n";
131 else
132 std::cout << "End Result: TEST PASSED\n";
133
134 return 0;
135}
Vector< Real > V
Defines a no-output stream class ROL::NullStream and a function makeStreamPtr which either wraps a re...
Contains definitions for the Zakharov function as evaluated using only the ROL::Vector interface.
Provides an interface to run optimization algorithms.
virtual std::vector< std::string > run(Vector< Real > &x, Objective< Real > &obj, bool print=false, std::ostream &outStream=std::cout, bool printVectors=false, std::ostream &vectorStream=std::cout)
Run algorithm on unconstrained problems (Type-U). This is the primary Type-U interface.
By keeping a pointer to this in a derived Vector class, a tally of all methods is kept for profiling ...
Provides the ROL::Vector interface for scalar values, to be used, for example, with scalar constraint...
Defines the linear algebra or vector space interface.
void printVectorFunctionCalls(const ProfiledVector< Ordinal, Real > &x, std::ostream &outStream=std::cout)
int main(int argc, char *argv[])
int OrdinalT
double RealT
constexpr auto dim