C++ (Cpp) AbstractGroup::setParam示例

示例#1

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;
}

示例#2

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;
}

示例#3

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;
}

示例#4

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;
}