コード例 #1
0
void
Albany::SolutionMaxValueResponseFunction::
computeMaxValueT(const Tpetra_Vector& xT, double& global_max, int& global_index)
{
  //The following is needed b/c Epetra_MaxDouble comes from Trilinos Epetra package.
  double Tpetra_MaxDouble = 1.0E+100; 
  double my_max = -Tpetra_MaxDouble;
  int my_index = -1, index;
  
  Teuchos::ArrayRCP<const ST> xT_constView = xT.get1dView();
  
  // Loop over nodes to find max value for equation eq
  int num_my_nodes = xT.getLocalLength() / neq;
  for (int node=0; node<num_my_nodes; node++) {
    if (interleavedOrdering)  index = node*neq+eq;
    else                      index = node + eq*num_my_nodes;
    if (xT_constView[index] > my_max) {
      my_max = xT_constView[index];
      my_index = index;
    }
  }

  // Check remainder (AGS: NOT SURE HOW THIS CODE GETS CALLED?)
  if (num_my_nodes*neq+eq < xT.getLocalLength()) {
    if (interleavedOrdering)  index = num_my_nodes*neq+eq;
    else                      index = num_my_nodes + eq*num_my_nodes;
    if (xT_constView[index] > my_max) {
      my_max = xT_constView[index];
      my_index = index;
    }
  }

  Teuchos::RCP<const Teuchos::Comm<int> > commT = xT.getMap()->getComm(); 
  // Get max value across all proc's
  Teuchos::reduceAll(*commT, Teuchos::REDUCE_MAX, my_max, Teuchos::ptr(&global_max)); 

  // Compute min of all global indices equal to max value
  if (my_max == global_max)
    my_index = xT.getMap()->getGlobalElement(my_index);
  else
    my_index = xT.getGlobalLength();
  Teuchos::reduceAll(*commT, Teuchos::REDUCE_MIN, my_index, Teuchos::ptr(&global_index)); 
}
コード例 #2
0
void
Albany::SolutionMaxValueResponseFunction::
evaluateGradientT(const double current_time,
		 const Tpetra_Vector* xdotT,
		 const Tpetra_Vector* xdotdotT,
		 const Tpetra_Vector& xT,
		 const Teuchos::Array<ParamVec>& p,
		 ParamVec* deriv_p,
		 Tpetra_Vector* gT,
		 Tpetra_MultiVector* dg_dxT,
		 Tpetra_MultiVector* dg_dxdotT,
		 Tpetra_MultiVector* dg_dxdotdotT,
		 Tpetra_MultiVector* dg_dpT)
{
  int global_index;
  double mxv;
  computeMaxValueT(xT, mxv, global_index);
  
  // Evaluate response g
  if (gT != NULL) {
    Teuchos::ArrayRCP<ST> gT_nonconstView = gT->get1dViewNonConst();
    gT_nonconstView[0] = mxv;
  }

  Teuchos::ArrayRCP<const ST> xT_constView = xT.get1dView();
  
  // Evaluate dg/dx
  if (dg_dxT != NULL) {
    Teuchos::ArrayRCP<ST> dg_dxT_nonconstView;
    int im = -1;
    for (int i=0; i<xT.getMap()->getNodeNumElements(); i++) {
       dg_dxT_nonconstView = dg_dxT->getDataNonConst(0); 
       if (xT_constView[i] == mxv) { dg_dxT_nonconstView[i] = 1.0; im = i; }
       else                          dg_dxT_nonconstView[i] = 0.0;
    }

  }

  // Evaluate dg/dxdot
  if (dg_dxdotT != NULL)
    dg_dxdotT->putScalar(0.0);
  if (dg_dxdotdotT != NULL)
    dg_dxdotdotT->putScalar(0.0);

  // Evaluate dg/dp
  if (dg_dpT != NULL)
    dg_dpT->putScalar(0.0);

}