/usr/include/trilinos/ROL_LinearOperatorSum.hpp is in libtrilinos-rol-dev 12.12.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | // @HEADER
// ************************************************************************
//
// Rapid Optimization Library (ROL) Package
// Copyright (2014) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact lead developers:
// Drew Kouri (dpkouri@sandia.gov) and
// Denis Ridzal (dridzal@sandia.gov)
//
// ************************************************************************
// @HEADER
#ifndef ROL_LINEAROPERATORSUM_H
#define ROL_LINEAROPERATORSUM_H
#include "ROL_LinearOperator.hpp"
/** @ingroup func_group
\class ROL::LinearOperatorSum
\brief Provides the interface to sum of linear operators applied to a vector
---
*/
namespace ROL {
template <class Real>
class LinearOperatorSum : public LinearOperator<Real> {
typedef Vector<Real> V;
typedef LinearOperator<Real> OP;
typedef typename std::vector<Teuchos::RCP<OP> >::size_type size_type;
private:
Teuchos::RCP<std::vector<Teuchos::RCP<OP> > > ops_;
Teuchos::RCP<V> scratch_;
public:
LinearOperatorSum( Teuchos::RCP<OP> &A,
Teuchos::RCP<OP> &B,
Teuchos::RCP<V> & scratch ) :
scratch_(scratch) {
ops_ = Teuchos::rcp(new std::vector<OP> > );
ops_->push_back(A);
ops_->push_back(B);
}
LinearOperatorSum( Teuchos::RCP<OP> &A,
Teuchos::RCP<OP> &B,
Teuchos::RCP<OP> &C,
Teuchos::RCP<V> & scratch ) :
scratch_(scratch) {
ops_ = Teuchos::rcp(new std::vector<OP> > );
ops_->push_back(A);
ops_->push_back(B);
ops_->push_back(C);
}
// TODO: implementation for arbitrary sum
virtual void update( const Vector<Real> &x, bool flag = true, int iter = -1 ) {
for( size_type i=0; i<ops_->size(); ++i ) {
(*ops_)[i]->update(x,flag,true);
}
}
virtual void apply( Vector<Real> &Hv, const Vector<Real> &v, Real &tol ) const {
(*ops_)[0]->apply(Hv,v,tol);
for( size_type i=1; i<ops_->size(); ++i ) {
(*ops_)[i]->apply(*scratch_,v,tol);
Hv.plus(*scratch_);
}
}
virtual void applyInverse( Vector<Real> &Hv, const Vector<Real> &v, Real &tol ) const {
TEUCHOS_TEST_FOR_EXCEPTION( true, std::invalid_argument,
">>> ERROR (ROL_LinearOperatorSum, applyInverse): "
"Inverse is not defined for general sum of operators.");
}
}; // class LinearOperatorSum
} // namespace ROL
#endif // ROL_LINEAROPERATOR_PRODUCT_H
|