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// ************************************************************************
//
// Rapid Optimization Library (ROL) Package
// Copyright (2014) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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// @HEADER
#ifndef ROL_ATOMVECTOR_H
#define ROL_ATOMVECTOR_H
#include "ROL_BatchStdVector.hpp"
/** \class ROL::AtomVector
\brief Provides the std::vector implementation of the ROL::Vector interface.
*/
namespace ROL {
template <class Real>
class PrimalAtomVector;
template <class Real>
class DualAtomVector;
template <class Real>
class AtomVector : public BatchStdVector<Real> {
typedef typename std::vector<Real>::size_type uint;
private:
const int numMySamples_;
const int dimension_;
public:
AtomVector(const Teuchos::RCP<std::vector<Real> > &vec,
const Teuchos::RCP<BatchManager<Real> > &bman,
const int numMySamples, const int dimension)
: BatchStdVector<Real>(vec,bman),
numMySamples_(numMySamples), dimension_(dimension) {}
Teuchos::RCP<const std::vector<Real> > getAtom(const int i) const {
TEUCHOS_TEST_FOR_EXCEPTION((i < 0 || i > numMySamples_), std::invalid_argument,
">>> ERROR (ROL::AtomVector): index out of bounds in getAtom!");
uint dim = static_cast<uint>(dimension_), I = static_cast<uint>(i);
std::vector<Real> pt(dim,0);
const std::vector<Real> &yval = *(StdVector<Real>::getVector());
for (uint j = 0; j < dim; ++j) {
pt[j] = yval[I*dim + j];
}
return Teuchos::rcp(new std::vector<Real>(pt));
}
void setAtom(const int i, const std::vector<Real> &pt) {
TEUCHOS_TEST_FOR_EXCEPTION((i < 0 || i > numMySamples_), std::invalid_argument,
">>> ERROR (ROL::AtomVector): index out of bounds in setAtom!");
uint dim = static_cast<uint>(dimension_), I = static_cast<uint>(i);
std::vector<Real> &yval = *(StdVector<Real>::getVector());
for (uint j = 0; j < dim; ++j) {
yval[I*dim + j] = pt[j];
}
}
int getNumMyAtoms(void) const {
return numMySamples_;
}
int getDimension(void) const {
return dimension_;
}
};
template<class Real>
class PrimalAtomVector : public AtomVector<Real> {
typedef typename std::vector<Real>::size_type uint;
private:
const Teuchos::RCP<std::vector<Real> > scale_;
mutable Teuchos::RCP<DualAtomVector<Real> > dual_vec_;
mutable bool isDualInitialized_;
public:
PrimalAtomVector(const Teuchos::RCP<std::vector<Real> > &vec,
const Teuchos::RCP<BatchManager<Real> > &bman,
const int numMySamples, const int dimension,
const Teuchos::RCP<std::vector<Real> > &scale)
: AtomVector<Real>(vec,bman,numMySamples,dimension),
scale_(scale), isDualInitialized_(false) {}
Real dot(const Vector<Real> &x) const {
const std::vector<Real> &xval = *(Teuchos::dyn_cast<const StdVector<Real> >(x).getVector());
const std::vector<Real> &yval = *(StdVector<Real>::getVector());
uint ysize = yval.size();
TEUCHOS_TEST_FOR_EXCEPTION( xval.size() != ysize, std::invalid_argument,
"Error: Vectors must have the same dimension." );
uint index = 0;
uint numMySamples = static_cast<uint>(AtomVector<Real>::getNumMyAtoms());
uint dimension = static_cast<uint>(AtomVector<Real>::getDimension());
Real val(0), sum_val(0);
for (uint i = 0; i < numMySamples; i++) {
for (uint j = 0; j < dimension; j++) {
index = i*dimension + j;
val += xval[index] * (*scale_)[index] * yval[index];
}
}
// Global sum
BatchStdVector<Real>::getBatchManager()->sumAll(&val,&sum_val,1);
return sum_val;
}
Teuchos::RCP<Vector<Real> > clone(void) const {
uint numMySamples = static_cast<uint>(AtomVector<Real>::getNumMyAtoms());
uint dimension = static_cast<uint>(AtomVector<Real>::getDimension());
return Teuchos::rcp(new PrimalAtomVector(
Teuchos::rcp(new std::vector<Real>(numMySamples*dimension)),
BatchStdVector<Real>::getBatchManager(),
numMySamples,dimension,scale_));
}
const Vector<Real> & dual(void) const {
uint numMySamples = static_cast<uint>(AtomVector<Real>::getNumMyAtoms());
uint dimension = static_cast<uint>(AtomVector<Real>::getDimension());
if ( !isDualInitialized_ ) {
dual_vec_ = Teuchos::rcp(new DualAtomVector<Real>(
Teuchos::rcp(new std::vector<Real>(numMySamples*dimension)),
BatchStdVector<Real>::getBatchManager(),
numMySamples,dimension,scale_));
isDualInitialized_ = true;
}
uint index = 0;
for (uint i = 0; i < numMySamples; i++) {
for (uint j = 0; j < dimension; j++) {
index = i*dimension + j;
(*(dual_vec_->getVector()))[index]
= (*scale_)[index] * (*(StdVector<Real>::getVector()))[index];
}
}
return *dual_vec_;
}
};
template<class Real>
class DualAtomVector : public AtomVector<Real> {
typedef typename std::vector<Real>::size_type uint;
private:
const Teuchos::RCP<std::vector<Real> > scale_;
mutable Teuchos::RCP<PrimalAtomVector<Real> > primal_vec_;
mutable bool isDualInitialized_;
public:
DualAtomVector(const Teuchos::RCP<std::vector<Real> > &vec,
const Teuchos::RCP<BatchManager<Real> > &bman,
const int numMySamples, const int dimension,
const Teuchos::RCP<std::vector<Real> > &scale)
: AtomVector<Real>(vec,bman,numMySamples,dimension),
scale_(scale), isDualInitialized_(false) {}
Real dot(const Vector<Real> &x) const {
const std::vector<Real> &xval = *(Teuchos::dyn_cast<const StdVector<Real> >(x).getVector());
const std::vector<Real> &yval = *(StdVector<Real>::getVector());
uint ysize = yval.size();
TEUCHOS_TEST_FOR_EXCEPTION( xval.size() != ysize, std::invalid_argument,
"Error: Vectors must have the same dimension." );
uint index = 0;
uint numMySamples = static_cast<uint>(AtomVector<Real>::getNumMyAtoms());
uint dimension = static_cast<uint>(AtomVector<Real>::getDimension());
Real val(0), sum_val(0);
for (uint i = 0; i < numMySamples; i++) {
for (uint j = 0; j < dimension; j++) {
index = i*dimension + j;
val += xval[index] * yval[index] / (*scale_)[index];
}
}
// Global sum
BatchStdVector<Real>::getBatchManager()->sumAll(&val,&sum_val,1);
return sum_val;
}
Teuchos::RCP<Vector<Real> > clone(void) const {
uint numMySamples = static_cast<uint>(AtomVector<Real>::getNumMyAtoms());
uint dimension = static_cast<uint>(AtomVector<Real>::getDimension());
return Teuchos::rcp(new DualAtomVector(
Teuchos::rcp(new std::vector<Real>(numMySamples*dimension)),
BatchStdVector<Real>::getBatchManager(),
numMySamples,dimension,scale_));
}
const Vector<Real> & dual(void) const {
uint numMySamples = static_cast<uint>(AtomVector<Real>::getNumMyAtoms());
uint dimension = static_cast<uint>(AtomVector<Real>::getDimension());
if ( !isDualInitialized_ ) {
primal_vec_ = Teuchos::rcp(new PrimalAtomVector<Real>(
Teuchos::rcp(new std::vector<Real>(numMySamples*dimension)),
BatchStdVector<Real>::getBatchManager(),
numMySamples,dimension,scale_));
isDualInitialized_ = true;
}
uint index = 0;
for (uint i = 0; i < numMySamples; i++) {
for (uint j = 0; j < dimension; j++) {
index = i*dimension + j;
(*(primal_vec_->getVector()))[index]
= (*(StdVector<Real>::getVector()))[index] / (*scale_)[index];
}
}
return *primal_vec_;
}
};
} // namespace ROL
#endif
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