ROL_BoundConstraint_Partitioned.hpp

Go to the documentation of this file.

// @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_BOUND_CONSTRAINT_PARTITIONED_H
#define ROL_BOUND_CONSTRAINT_PARTITIONED_H
 
#include "ROL_BoundConstraint.hpp"
#include "ROL_PartitionedVector.hpp"
#include "ROL_Types.hpp"
#include <iostream>

namespace ROL {
 
template<typename Real>
class BoundConstraint_Partitioned : public BoundConstraint<Real> {
 
  typedef Vector<Real>                          V;
  typedef PartitionedVector<Real>               PV;
  typedef typename std::vector<Real>::size_type uint;
 
private:
  std::vector<Ptr<BoundConstraint<Real>>> bnd_;
 
  using BoundConstraint<Real>::lower_;
  using BoundConstraint<Real>::upper_;
  Ptr<V> l_;
  Ptr<V> u_;
 
  uint dim_;
 
  bool hasLvec_;
  bool hasUvec_;
 
public:
  ~BoundConstraint_Partitioned() {}
 
  BoundConstraint_Partitioned(const std::vector<Ptr<BoundConstraint<Real>>> &bnd,
                              const std::vector<Ptr<Vector<Real>>> &x)
    : bnd_(bnd), dim_(bnd.size()), hasLvec_(true), hasUvec_(true) {
    BoundConstraint<Real>::deactivate();
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        BoundConstraint<Real>::activate();
        break;
      }
    }
    std::vector<Ptr<Vector<Real>>> lp(dim_);
    std::vector<Ptr<Vector<Real>>> up(dim_);
    for( uint k=0; k<dim_; ++k ) {
      try {
        lp[k] = x[k]->clone();
        if (bnd_[k]->isLowerActivated()) {
          lp[k]->set(*bnd_[k]->getLowerBound());
        }
        else {
          lp[k]->setScalar(-BoundConstraint<Real>::computeInf(*x[k]));
        }
      }
      catch (std::exception &e1) {
        try {
          lp[k] = x[k]->clone();
          lp[k]->setScalar(-BoundConstraint<Real>::computeInf(*x[k]));
        }
        catch (std::exception &e2) {
          lp[k] = nullPtr;
          hasLvec_ = false;
        }
      }
      try {
        up[k] = x[k]->clone();
        if (bnd_[k]->isUpperActivated()) {
          up[k]->set(*bnd_[k]->getUpperBound());
        }
        else {
          up[k]->setScalar( BoundConstraint<Real>::computeInf(*x[k]));
        }
      }
      catch (std::exception &e1) {
        try {
          up[k] = x[k]->clone();
          up[k]->setScalar( BoundConstraint<Real>::computeInf(*x[k]));
        }
        catch (std::exception &e2) {
          up[k] = nullPtr;
          hasUvec_ = false;
        }
      }
    }
    if (hasLvec_) {
      lower_ = makePtr<PV>(lp);
    }
    if (hasUvec_) {
      upper_ = makePtr<PV>(up);
    }
  }
 
  void update( const Vector<Real> &x, bool flag = true, int iter = -1 ) {
    const PV &xpv = dynamic_cast<const PV&>(x);
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->update(*(xpv.get(k)),flag,iter);
      }
    }
  }
 
  void project( Vector<Real> &x ) {
    PV &xpv = dynamic_cast<PV&>(x);
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->project(*xpv.get(k));
      }
    }
  }
 
  void projectInterior( Vector<Real> &x ) {
    PV &xpv = dynamic_cast<PV&>(x);
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->projectInterior(*xpv.get(k));
      }
    }
  }
 
  void pruneUpperActive( Vector<Real> &v, const Vector<Real> &x, Real eps = Real(0) ) {
          PV &vpv = dynamic_cast<PV&>(v);
    const PV &xpv = dynamic_cast<const PV&>(x);
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->pruneUpperActive(*(vpv.get(k)),*(xpv.get(k)),eps);
      }
    }
 }
 
  void pruneUpperActive( Vector<Real> &v, const Vector<Real> &g, const Vector<Real> &x, Real xeps = Real(0), Real geps = Real(0)) {
          PV &vpv = dynamic_cast<PV&>(v);
    const PV &gpv = dynamic_cast<const PV&>(g);
    const PV &xpv = dynamic_cast<const PV&>(x);
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->pruneUpperActive(*(vpv.get(k)),*(gpv.get(k)),*(xpv.get(k)),xeps,geps);
      }
    }
  }
 
  void pruneLowerActive( Vector<Real> &v, const Vector<Real> &x, Real eps = Real(0) ) {
          PV &vpv = dynamic_cast<PV&>(v);
    const PV &xpv = dynamic_cast<const PV&>(x);
   for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->pruneLowerActive(*(vpv.get(k)),*(xpv.get(k)),eps);
      }
    }
  }
 
  void pruneLowerActive( Vector<Real> &v, const Vector<Real> &g, const Vector<Real> &x, Real xeps = Real(0), Real geps = Real(0) ) {
          PV &vpv = dynamic_cast<PV&>(v);
    const PV &gpv = dynamic_cast<const PV&>(g);
    const PV &xpv = dynamic_cast<const PV&>(x);
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->pruneLowerActive(*(vpv.get(k)),*(gpv.get(k)),*(xpv.get(k)),xeps,geps);
      }
    }
  }
 
  bool isFeasible( const Vector<Real> &v ) {
    bool feasible = true;
    const PV &vs = dynamic_cast<const PV&>(v);
    for( uint k=0; k<dim_; ++k ) {
      if(bnd_[k]->isActivated()) {
        feasible = feasible && bnd_[k]->isFeasible(*(vs.get(k)));
      }
    }
    return feasible;
  }
 
  void applyInverseScalingFunction(Vector<Real> &dv, const Vector<Real> &v, const Vector<Real> &x, const Vector<Real> &g) const {
          PV &dvpv = dynamic_cast<PV&>(dv);
    const PV &vpv  = dynamic_cast<const PV&>(v);
    const PV &xpv  = dynamic_cast<const PV&>(x);
    const PV &gpv  = dynamic_cast<const PV&>(g);
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->applyInverseScalingFunction(*(dvpv.get(k)),*(vpv.get(k)),*(xpv.get(k)),*(gpv.get(k)));
      }
    }
  }
 
  void applyScalingFunctionJacobian(Vector<Real> &dv, const Vector<Real> &v, const Vector<Real> &x, const Vector<Real> &g) const {
          PV &dvpv = dynamic_cast<PV&>(dv);
    const PV &vpv  = dynamic_cast<const PV&>(v);
    const PV &xpv  = dynamic_cast<const PV&>(x);
    const PV &gpv  = dynamic_cast<const PV&>(g);
    for( uint k=0; k<dim_; ++k ) {
      if( bnd_[k]->isActivated() ) {
        bnd_[k]->applyScalingFunctionJacobian(*(dvpv.get(k)),*(vpv.get(k)),*(xpv.get(k)),*(gpv.get(k)));
      }
    }
  }
}; // class BoundConstraint_Partitioned
 
 
 
template<typename Real>
Ptr<BoundConstraint<Real>>
CreateBoundConstraint_Partitioned( const Ptr<BoundConstraint<Real>> &bnd1,
                                   const Ptr<BoundConstraint<Real>> &bnd2 ) {
 
 
  typedef BoundConstraint<Real>             BND;
  typedef BoundConstraint_Partitioned<Real> BNDP;
  Ptr<BND> temp[] = {bnd1, bnd2};
  return makePtr<BNDP>( std::vector<Ptr<BND>>(temp,temp+2) );
}
 
 
} // namespace ROL
 
#endif