ROL
sacado/example_02.hpp
Go to the documentation of this file.
1 // @HEADER
2 // ************************************************************************
3 //
4 // Rapid Optimization Library (ROL) Package
5 // Copyright (2014) Sandia Corporation
6 //
7 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
8 // license for use of this work by or on behalf of the U.S. Government.
9 //
10 // Redistribution and use in source and binary forms, with or without
11 // modification, are permitted provided that the following conditions are
12 // met:
13 //
14 // 1. Redistributions of source code must retain the above copyright
15 // notice, this list of conditions and the following disclaimer.
16 //
17 // 2. Redistributions in binary form must reproduce the above copyright
18 // notice, this list of conditions and the following disclaimer in the
19 // documentation and/or other materials provided with the distribution.
20 //
21 // 3. Neither the name of the Corporation nor the names of the
22 // contributors may be used to endorse or promote products derived from
23 // this software without specific prior written permission.
24 //
25 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
26 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
29 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 //
37 // Questions? Contact lead developers:
38 // Drew Kouri (dpkouri@sandia.gov) and
39 // Denis Ridzal (dridzal@sandia.gov)
40 //
41 // ************************************************************************
42 // @HEADER
43 
44 #include "ROL_StdVector.hpp"
45 
46 using namespace ROL;
47 
48 
52 template<class Real>
54  public:
55  template<class ScalarT>
56  ScalarT value(const Vector<ScalarT> &x, Real &tol);
57 
58 };
59 
60 template <class Real>
61 template <class ScalarT>
62 ScalarT Example_Objective<Real>::value(const Vector<ScalarT>& x, Real &tol) {
63  Teuchos::RCP<const std::vector<ScalarT> > xp =
64  (Teuchos::dyn_cast<StdVector<ScalarT> >(const_cast<Vector<ScalarT> &>(x))).getVector();
65 
66  ScalarT x1 = (*xp)[0];
67  ScalarT x2 = (*xp)[1];
68  ScalarT x3 = (*xp)[2];
69  ScalarT x4 = (*xp)[3];
70  ScalarT x5 = (*xp)[4];
71 
72  ScalarT J = exp(x1*x2*x3*x4*x5) - 0.5 * pow( (pow(x1,3)+pow(x2,3)+1.0), 2);
73  return J;
74 }
75 
76 
77 
83 template<class Real>
84 class Example_Constraint {
85  public:
86  int dim;
87 
88  template<class ScalarT>
89  void value(Vector<ScalarT> &c, const Vector<ScalarT> &x, Real &tol);
90 };
91 
92 
93 template<class Real>
94 template<class ScalarT>
95 void Example_Constraint<Real>::value(Vector<ScalarT> &c, const Vector<ScalarT> &x, Real &tol) {
96  Teuchos::RCP<std::vector<ScalarT> > cp =
97  Teuchos::rcp_const_cast<std::vector<ScalarT> >((Teuchos::dyn_cast<StdVector<ScalarT> >(c)).getVector());
98  Teuchos::RCP<const std::vector<ScalarT> > xp =
99  (Teuchos::dyn_cast<StdVector<ScalarT> >(const_cast<Vector<ScalarT> &>(x))).getVector();
100 
101  ScalarT x1 = (*xp)[0];
102  ScalarT x2 = (*xp)[1];
103  ScalarT x3 = (*xp)[2];
104  ScalarT x4 = (*xp)[3];
105  ScalarT x5 = (*xp)[4];
106 
107  (*cp)[0] = x1*x1+x2*x2+x3*x3+x4*x4+x5*x5 - 10.0;
108  (*cp)[1] = x2*x3 - 5.0*x4*x5;
109  (*cp)[2] = x1*x1*x1 + x2*x2*x2 + 1.0;
110 
111 }
112 
Objective function: .
Defines the linear algebra or vector space interface.
Definition: ROL_Vector.hpp:72
Provides the std::vector implementation of the ROL::Vector interface.
ScalarT value(const Vector< ScalarT > &x, Real &tol)