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43
44 /*! \file test_05.cpp
45 \brief Test ScaledStdVector interface.
46 */
47
48
49 #include "ROL_ScaledStdVector.hpp"
50
51 #include "ROL_Stream.hpp"
52 #include "Teuchos_GlobalMPISession.hpp"
53
54 typedef double RealT;
55 typedef double ElementT;
56
main(int argc,char * argv[])57 int main(int argc, char *argv[]) {
58
59 Teuchos::GlobalMPISession mpiSession(&argc, &argv,0);
60
61 int iprint = argc - 1;
62 ROL::nullstream bhs; // outputs nothing
63 std::ostream& outStream = (iprint > 0) ? std::cout : bhs;
64
65 int errorFlag = 0;
66
67 RealT errtol = ROL::ROL_THRESHOLD<RealT>();
68
69 try {
70 // Dimension of the optimization vector
71
72 int dim = 10;
73
74 // Create Tpetra::MultiVectors (single vectors)
75 ROL::Ptr<std::vector<ElementT> > x_ptr
76 = ROL::makePtr<std::vector<ElementT>>(dim);
77 ROL::Ptr<std::vector<ElementT> > y_ptr
78 = ROL::makePtr<std::vector<ElementT>>(dim);
79 ROL::Ptr<std::vector<ElementT> > W_ptr
80 = ROL::makePtr<std::vector<ElementT>>(dim,static_cast<ElementT>(2));
81
82 // Random elements
83 for (int i = 0; i < dim; i++) {
84 (*x_ptr)[i] = static_cast<ElementT>(rand())/static_cast<ElementT>(RAND_MAX);
85 (*y_ptr)[i] = static_cast<ElementT>(rand())/static_cast<ElementT>(RAND_MAX);
86 }
87
88 // Create ROL vectors
89 ROL::PrimalScaledStdVector<RealT,ElementT> x(x_ptr,W_ptr);
90 ROL::DualScaledStdVector<RealT,ElementT> y(y_ptr,W_ptr);
91
92 RealT xy = x.dot(y.dual());
93 RealT yx = y.dot(x.dual());
94
95 outStream << "\nAbsolute error between x.dot(y.dual()) and y.dot(x.dual()): "
96 << std::abs(xy-yx) << "\n";
97 outStream << "x.dot(y.dual()): " << xy << "\n";
98 outStream << "y.dot(x.dual()): " << yx << "\n";
99 if ( std::abs(xy-yx) > errtol ) {
100 outStream << "---> POSSIBLE ERROR ABOVE!\n";
101 errorFlag++;
102 }
103
104 RealT xx = std::sqrt(x.dot(x)), xnorm = x.norm();
105 RealT yy = std::sqrt(y.dot(y)), ynorm = y.norm();
106
107 outStream << "\nAbsolute error between sqrt(x.dot(x)) and x.norm(): "
108 << std::abs(xx-xnorm) << "\n";
109 outStream << "sqrt(x.dot(x)): " << xx << "\n";
110 outStream << "x.norm(): " << xnorm << "\n";
111 if ( std::abs(xx-xnorm) > errtol ) {
112 outStream << "---> POSSIBLE ERROR ABOVE!\n";
113 errorFlag++;
114 }
115
116 outStream << "\nAbsolute error between sqrt(y.dot(y)) and y.norm(): "
117 << std::abs(yy-ynorm) << "\n";
118 outStream << "sqrt(y.dot(y)): " << yy << "\n";
119 outStream << "y.norm(): " << ynorm << "\n";
120 if ( std::abs(yy-ynorm) > errtol ) {
121 outStream << "---> POSSIBLE ERROR ABOVE!\n";
122 errorFlag++;
123 }
124
125 // clone z from x, deep copy x into z, norm of z
126 ROL::Ptr<ROL::Vector<RealT> > z = x.clone();
127 z->set(x);
128 RealT znorm = z->norm();
129 outStream << "\nNorm of ROL::Vector z (clone of x): " << znorm << "\n";
130 if ( std::abs(xnorm - znorm) > errtol ) {
131 outStream << "---> POSSIBLE ERROR ABOVE!\n";
132 errorFlag++;
133 }
134 ROL::Ptr<ROL::Vector<RealT> > w = y.clone();
135 w = y.clone();
136 w->set(y);
137 RealT wnorm = w->norm();
138 outStream << "\nNorm of ROL::Vector w (clone of y): " << wnorm << "\n";
139 if ( std::abs(ynorm - wnorm) > errtol ) {
140 outStream << "---> POSSIBLE ERROR ABOVE!\n";
141 errorFlag++;
142 }
143
144 // Standard tests.
145 ROL::Ptr<std::vector<ElementT> > x1_ptr
146 = ROL::makePtr<std::vector<ElementT>>(dim);
147 ROL::Ptr<std::vector<ElementT> > y1_ptr
148 = ROL::makePtr<std::vector<ElementT>>(dim);
149 ROL::Ptr<std::vector<ElementT> > z1_ptr
150 = ROL::makePtr<std::vector<ElementT>>(dim);
151
152 // Random elements
153 for (int i = 0; i < dim; i++) {
154 (*x1_ptr)[i] = static_cast<ElementT>(rand())/static_cast<ElementT>(RAND_MAX);
155 (*y1_ptr)[i] = static_cast<ElementT>(rand())/static_cast<ElementT>(RAND_MAX);
156 (*z1_ptr)[i] = static_cast<ElementT>(rand())/static_cast<ElementT>(RAND_MAX);
157 }
158
159 // Create ROL vectors
160 ROL::PrimalScaledStdVector<RealT,ElementT> x1(x1_ptr,W_ptr);
161 ROL::PrimalScaledStdVector<RealT,ElementT> y1(y1_ptr,W_ptr);
162 ROL::PrimalScaledStdVector<RealT,ElementT> z1(z1_ptr,W_ptr);
163
164 std::vector<RealT> consistency = x1.checkVector(y1, z1, true, outStream);
165 ROL::StdVector<RealT> checkvec( ROL::makePtrFromRef(consistency) );
166 if (checkvec.norm() > std::sqrt(errtol)) {
167 errorFlag++;
168 }
169
170 }
171
172 catch (std::logic_error& err) {
173 outStream << err.what() << "\n";
174 errorFlag = -1000;
175 }; // end try
176
177 if (errorFlag != 0)
178 std::cout << "End Result: TEST FAILED\n";
179 else
180 std::cout << "End Result: TEST PASSED\n";
181
182 return 0;
183 }
184