OperatorTerm.cc 5.12 KB
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#include "OperatorTerm.h"
#include "ElInfo.h"
#include "DOFVector.h"

namespace AMDiS {

  const Flag OperatorTerm::PW_CONST = 1;
  const Flag OperatorTerm::SYMMETRIC = 2;


  void OperatorTerm::setSymmetric(bool symm)
  {
    if (symm)
      properties.setFlag(SYMMETRIC);
    else
      properties.unsetFlag(SYMMETRIC);       
  }


  bool OperatorTerm::isSymmetric()
  {
    return properties.isSet(SYMMETRIC);
  }


  double *OperatorTerm::getVectorAtQPs(DOFVectorBase<double>* vec,
				       const ElInfo* elInfo, 
				       SubAssembler* subAssembler,
				       Quadrature *quad)
  {
    FUNCNAME("OperatorTerm::getVectorAtQPs()");

    TEST_EXIT_DBG(elInfo->getMesh() == vec->getFESpace()->getMesh())
      ("There is something wrong!\n");
      
    return subAssembler->getVectorAtQPs(vec, elInfo, quad);
  }


  double *OperatorTerm::getVectorAtQPs(DOFVectorBase<double>* vec,
				       const ElInfo* smallElInfo, 
				       const ElInfo* largeElInfo, 
				       SubAssembler* subAssembler,
				       Quadrature *quad)
  {
    FUNCNAME("OperatorTerm::getVectorAtQPs()");

    TEST_EXIT(smallElInfo->getMesh() == vec->getFESpace()->getMesh() ||
	      largeElInfo->getMesh() == vec->getFESpace()->getMesh())
      ("There is something wrong!\n");

    if (smallElInfo->getLevel() == largeElInfo->getLevel()) {

      // Both elements have the same size, so we can use the simple procedure
      // to determine the vecAtQPs.
      
      if (vec->getFESpace()->getMesh() == smallElInfo->getMesh())
	return subAssembler->getVectorAtQPs(vec, smallElInfo, quad);
      else
	return subAssembler->getVectorAtQPs(vec, largeElInfo, quad);      

    } else {

      // The two elements are different. If the vector is defined on the mesh of the
      // small element, we can still use the simple procedure to determine the vecAtQPs.

      if (vec->getFESpace()->getMesh() == largeElInfo->getMesh())
	return subAssembler->getVectorAtQPs(vec, smallElInfo, largeElInfo, quad);
      else
	return subAssembler->getVectorAtQPs(vec, smallElInfo, quad);
    }
  }


  WorldVector<double>* OperatorTerm::getGradientsAtQPs(DOFVectorBase<double>* vec,
						       const ElInfo* elInfo,
						       SubAssembler* subAssembler,
						       Quadrature *quad)
  {
    FUNCNAME("OperatorTerm::getGradientsAtQPs()");

    TEST_EXIT_DBG(elInfo->getMesh() == vec->getFESpace()->getMesh())
      ("There is something wrong!\n");

    return subAssembler->getGradientsAtQPs(vec, elInfo, quad);
  }


  WorldVector<double>* OperatorTerm::getGradientsAtQPs(DOFVectorBase<double>* vec,
						       const ElInfo* smallElInfo, 
						       const ElInfo* largeElInfo,
						       SubAssembler* subAssembler,
						       Quadrature *quad)
  {
    FUNCNAME("OperatorTerm::getGradientsAtQPs()");

    ERROR_EXIT("Not yet tested!\n");

    TEST_EXIT(smallElInfo->getMesh() == vec->getFESpace()->getMesh() ||
	      largeElInfo->getMesh() == vec->getFESpace()->getMesh())
      ("There is something wrong!\n");

    if (smallElInfo->getLevel() == largeElInfo->getLevel()) {

      // Both elements have the same size, so we can use the simple procedure
      // to determine the gradients.
      
      if (vec->getFESpace()->getMesh() == smallElInfo->getMesh())
	return subAssembler->getGradientsAtQPs(vec, smallElInfo, quad);
      else
	return subAssembler->getGradientsAtQPs(vec, largeElInfo, quad);      

    } else {

      // The two elements are different. If the vector is defined on the mesh of the
      // small element, we can still use the simple procedure to determine the gradients.

      if (vec->getFESpace()->getMesh() == largeElInfo->getMesh())
	return subAssembler->getGradientsAtQPs(vec, smallElInfo, largeElInfo, quad);
      else
	return subAssembler->getGradientsAtQPs(vec, smallElInfo, quad);
    }
  }


  void OperatorTerm::lalt(const DimVec<WorldVector<double> >& Lambda,
			  const WorldMatrix<double>& matrix,
			  DimMat<double>& LALt,
			  bool symm,
			  double factor) const
  {
    int j, k, l;
    const int dimOfWorld = Global::getGeo(WORLD);
    int dim = LALt.getNumRows() - 1;
  
    double val = 0.0;

    if (symm) {
      for (int i = 0; i <= dim; i++) {
	val = 0.0;
	for (k = 0; k < dimOfWorld; k++)
	  for (l = 0; l < dimOfWorld; l++)
	    val += Lambda[i][k] * matrix[k][l] * Lambda[i][l];
	val *= factor;
	LALt[i][i] += val;
	for (j = i + 1; j <= dim; j++) {
	  val = 0.0;
	  for (k = 0; k < dimOfWorld; k++)
	    for (l = 0; l < dimOfWorld; l++)
	      val += Lambda[i][k] * matrix[k][l] * Lambda[j][l];
	  val *= factor;
	  LALt[i][j] += val;
	  LALt[j][i] += val;
	}
      }    
    } else {	
      for (int i = 0; i <= dim; i++) {
	for (j = 0; j <= dim; j++) {
	  val = 0.0;
	  for (k = 0; k < dimOfWorld; k++)
	    for (l = 0; l < dimOfWorld; l++) 
	      val += Lambda[i][k] * matrix[k][l] * Lambda[j][l];
	  val *= factor;
	  LALt[i][j] += val;
	}
      }    
    }      
  }


  void OperatorTerm::lalt_kl(const DimVec<WorldVector<double> >& Lambda,
			     int k, int l,
			     DimMat<double>& LALt,
			     double factor)
  {
    int dim = LALt.getNumRows() - 1;

    for (int i = 0; i <= dim; i++)
      for (int j = 0; j <= dim; j++)
	LALt[i][j] += factor * Lambda[i][k] * Lambda[j][l];
  }

}