NOX::Abstract::Group::ReturnType
LOCA::DerivUtils::computeDfDp(LOCA::MultiContinuation::AbstractGroup& grp,
const vector<int>& param_ids,
NOX::Abstract::MultiVector& result,
bool isValidF) const
{
string callingFunction =
"LOCA::DerivUtils::computeDfDp()";
NOX::Abstract::Group::ReturnType status, finalStatus;
// Views of f, df/dp
NOX::Abstract::Vector *f = &result[0];
NOX::Abstract::Vector *dfdp = NULL;
// Compute base residual F
if (!isValidF) {
finalStatus = grp.computeF();
globalData->locaErrorCheck->checkReturnType(finalStatus, callingFunction);
*f = grp.getF();
}
else
finalStatus = NOX::Abstract::Group::Ok;
double param;
double eps;
// Loop over each parameter
for (unsigned int i=0; i<param_ids.size(); i++) {
// Perturb single parameter in this group, and return perturbation, eps
eps = perturbParam(grp, param, param_ids[i]);
// Compute perturbed residual
status = grp.computeF();
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status,
finalStatus,
callingFunction);
// Difference perturbed and base vector
dfdp = &result[i+1];
dfdp->update(1.0, grp.getF(), -1.0, *f, 0.0);
dfdp->scale(1.0/eps);
// Restore original parameter value
grp.setParam(param_ids[i], param);
}
return finalStatus;
}
double
LOCA::DerivUtils::perturbParam(LOCA::MultiContinuation::AbstractGroup& grp,
double& paramOrig,
int param_id) const
{
paramOrig = grp.getParam(param_id);
// Find perturbation size and perturb parameter
double eps = epsScalar(paramOrig);
double param = paramOrig + eps;
// Copy this perturbed parameter vector into group
grp.setParam(param_id, param);
// Return perturbation size
return eps;
}
NOX::Abstract::Group::ReturnType
LOCA::DerivUtils::computeDwtJDp(LOCA::MultiContinuation::AbstractGroup& grp,
const vector<int>& paramIDs,
const NOX::Abstract::Vector& w,
NOX::Abstract::MultiVector& result,
bool isValid) const
{
string callingFunction =
"LOCA::DerivUtils::computeDwtJDp()";
NOX::Abstract::Group::ReturnType status, finalStatus;
// Views of w^T*J, d(w^T*J)/dp
NOX::Abstract::Vector *wtJ = &result[0];
NOX::Abstract::Vector *dwtJdp = NULL;
// Compute base residual w^T*J
if (!isValid) {
finalStatus = grp.computeJacobian();
globalData->locaErrorCheck->checkReturnType(finalStatus, callingFunction);
status = grp.applyJacobianTranspose(w, *wtJ);
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status,
finalStatus,
callingFunction);
}
else
finalStatus = NOX::Abstract::Group::Ok;
double param;
double eps;
// Loop over each parameter
for (unsigned int i=0; i<paramIDs.size(); i++) {
// Perturb single parameter in this group, and return perturbation, eps
eps = perturbParam(grp, param, paramIDs[i]);
// Fill perturbed w^T*J vector
status = grp.computeJacobian();
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status, finalStatus,
callingFunction);
dwtJdp = &result[i+1];
status = grp.applyJacobianTranspose(w, *dwtJdp);
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status,
finalStatus,
callingFunction);
// Difference perturbed and base vector
dwtJdp->update(-1.0, *wtJ, 1.0);
dwtJdp->scale(1.0/eps);
// Restore original parameter value
grp.setParam(paramIDs[i], param);
}
return finalStatus;
}
NOX::Abstract::Group::ReturnType
LOCA::DerivUtils::computeDwtJnDp(
LOCA::MultiContinuation::AbstractGroup& grp,
const vector<int>& paramIDs,
const NOX::Abstract::Vector& w,
const NOX::Abstract::Vector& nullVector,
NOX::Abstract::MultiVector::DenseMatrix& result,
bool isValid) const
{
string callingFunction =
"LOCA::DerivUtils::computeDwtJnDp()";
NOX::Abstract::Group::ReturnType status, finalStatus;
// Vector to store J*n
Teuchos::RCP<NOX::Abstract::Vector> Jn =
w.clone(NOX::ShapeCopy);
double base_wtJn;
// Compute base w^T*J*n
if (!isValid) {
// Compute J
finalStatus = grp.computeJacobian();
globalData->locaErrorCheck->checkReturnType(finalStatus, callingFunction);
// Compute J*n
status = grp.applyJacobian(nullVector, *Jn);
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status,
finalStatus,
callingFunction);
// Compute w^T*J*n
base_wtJn = w.innerProduct(*Jn);
result(0,0) = base_wtJn;
}
else {
base_wtJn = result(0,0);
finalStatus = NOX::Abstract::Group::Ok;
}
double param;
double eps;
double perturb_wtJn;
// Loop over each parameter
for (unsigned int i=0; i<paramIDs.size(); i++) {
// Perturb single parameter in this group, and return perturbation, eps
eps = perturbParam(grp, param, paramIDs[i]);
// Compute perturbed J
status = grp.computeJacobian();
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status, finalStatus,
callingFunction);
// Compute perturbed J*n
status = grp.applyJacobian(nullVector, *Jn);
finalStatus =
globalData->locaErrorCheck->combineAndCheckReturnTypes(status,
finalStatus,
callingFunction);
// Compute perturbed w^T*J*n
perturb_wtJn = w.innerProduct(*Jn);
// Difference perturbed and base values
result(0,i+1) = (perturb_wtJn - base_wtJn) / eps;
// Restore original parameter value
grp.setParam(paramIDs[i], param);
}
return finalStatus;
}
