NOX::Abstract::Group::ReturnType
LOCA::Epetra::ModelEvaluatorInterface::
computeDfDp(LOCA::MultiContinuation::AbstractGroup& grp,
const vector<int>& param_ids,
NOX::Abstract::MultiVector& result,
bool isValidF) const
{
// Break result into f and df/dp
NOX::Epetra::Vector& f = dynamic_cast<NOX::Epetra::Vector&>(result[0]);
Epetra_Vector& epetra_f = f.getEpetraVector();
std::vector<int> dfdp_index(result.numVectors()-1);
for (unsigned int i=0; i<dfdp_index.size(); i++)
dfdp_index[i] = i+1;
Teuchos::RefCountPtr<NOX::Epetra::MultiVector> dfdp =
Teuchos::rcp_dynamic_cast<NOX::Epetra::MultiVector>(result.subView(dfdp_index));
Epetra_MultiVector& epetra_dfdp = dfdp->getEpetraMultiVector();
// Create inargs
EpetraExt::ModelEvaluator::InArgs inargs = model_->createInArgs();
const NOX::Epetra::Vector& x =
dynamic_cast<const NOX::Epetra::Vector&>(grp.getX());
const Epetra_Vector& epetra_x = x.getEpetraVector();
inargs.set_x(Teuchos::rcp(&epetra_x, false));
inargs.set_p(0, Teuchos::rcp(¶m_vec, false));
if (inargs.supports(EpetraExt::ModelEvaluator::IN_ARG_x_dot)) {
// Create x_dot, filled with zeros
if (x_dot == NULL)
x_dot = new Epetra_Vector(epetra_x.Map());
inargs.set_x_dot(Teuchos::rcp(x_dot, false));
}
// Create outargs
EpetraExt::ModelEvaluator::OutArgs outargs = model_->createOutArgs();
if (!isValidF) {
EpetraExt::ModelEvaluator::Evaluation<Epetra_Vector> eval_f;
Teuchos::RefCountPtr<Epetra_Vector> F = Teuchos::rcp(&epetra_f, false);
eval_f.reset(F, EpetraExt::ModelEvaluator::EVAL_TYPE_EXACT);
outargs.set_f(eval_f);
}
Teuchos::RefCountPtr<Epetra_MultiVector> DfDp =
Teuchos::rcp(&epetra_dfdp, false);
Teuchos::Array<int> param_indexes(param_ids.size());
for (unsigned int i=0; i<param_ids.size(); i++)
param_indexes[i] = param_ids[i];
EpetraExt::ModelEvaluator::DerivativeMultiVector dmv(DfDp, EpetraExt::ModelEvaluator::DERIV_MV_BY_COL,
param_indexes);
EpetraExt::ModelEvaluator::Derivative deriv(dmv);
outargs.set_DfDp(0, deriv);
model_->evalModel(inargs, outargs);
return NOX::Abstract::Group::Ok;
}
NOX::Abstract::Group::ReturnType
LOCA::DerivUtils::computeDwtJnDx(LOCA::MultiContinuation::AbstractGroup& grp,
const NOX::Abstract::MultiVector& w,
const NOX::Abstract::Vector& nullVector,
NOX::Abstract::MultiVector& result) const
{
string callingFunction =
"LOCA::DerivUtils::computeDwtJnDx()";
NOX::Abstract::Group::ReturnType status, finalStatus;
// Vector to store w^T*J
Teuchos::RCP<NOX::Abstract::MultiVector> wtJ =
w.clone(NOX::ShapeCopy);
// Compute base w^T*J
finalStatus = grp.computeJacobian();
globalData->locaErrorCheck->checkReturnType(finalStatus, callingFunction);
status = grp.applyJacobianTransposeMultiVector(w, *wtJ);
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status, finalStatus,
callingFunction);
// Copy original solution vector
Teuchos::RCP<NOX::Abstract::Vector> Xvec =
grp.getX().clone(NOX::DeepCopy);
// Perturb solution vector in direction of nullVector, return perturbation
double eps = perturbXVec(grp, *Xvec, nullVector);
// Fill perturbed w^T*J vector
finalStatus = grp.computeJacobian();
globalData->locaErrorCheck->checkReturnType(finalStatus, callingFunction);
status = grp.applyJacobianTransposeMultiVector(w, result);
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status,
finalStatus,
callingFunction);
// Difference perturbed and base vector
result.update(-1.0, *wtJ, 1.0);
result.scale(1.0/eps);
// Restore original solution vector
grp.setX(*Xvec);
return finalStatus;
}
NOX::Abstract::Group::ReturnType
LOCA::DerivUtils::computeDJnDxa(LOCA::MultiContinuation::AbstractGroup& grp,
const NOX::Abstract::Vector& nullVector,
const NOX::Abstract::MultiVector& aVector,
const NOX::Abstract::Vector& JnVector,
NOX::Abstract::MultiVector& result) const
{
string callingFunction =
"LOCA::DerivUtils::computeDJnDxa()";
NOX::Abstract::Group::ReturnType status, finalStatus;
// Copy original solution vector
Teuchos::RCP<NOX::Abstract::Vector> Xvec =
grp.getX().clone(NOX::DeepCopy);
// Loop over each column of multivector
for (int i=0; i<aVector.numVectors(); i++) {
// Perturb solution vector in direction of aVector, return perturbation
double eps = perturbXVec(grp, *Xvec, aVector[i]);
// Fill perturbed Jn vector
finalStatus = grp.computeJacobian();
globalData->locaErrorCheck->checkReturnType(finalStatus, callingFunction);
status = grp.applyJacobian(nullVector, result[i]);
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status,
finalStatus,
callingFunction);
// Difference perturbed and base vector
result[i].update(-1.0, JnVector, 1.0);
result[i].scale(1.0/eps);
}
// Restore original solution vector
grp.setX(*Xvec);
return finalStatus;
}
