Chaste  Release::3.4
SimpleLinearEllipticSolver.cpp
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35 
36 #include "SimpleLinearEllipticSolver.hpp"
37 
38 template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
39 c_matrix<double, 1*(ELEMENT_DIM+1), 1*(ELEMENT_DIM+1)>SimpleLinearEllipticSolver<ELEMENT_DIM,SPACE_DIM>:: ComputeMatrixTerm(
40  c_vector<double, ELEMENT_DIM+1>& rPhi,
41  c_matrix<double, SPACE_DIM, ELEMENT_DIM+1>& rGradPhi,
43  c_vector<double,1>& rU,
44  c_matrix<double,1,SPACE_DIM>& rGradU,
46 {
47  c_matrix<double, SPACE_DIM, SPACE_DIM> pde_diffusion_term = mpEllipticPde->ComputeDiffusionTerm(rX);
48 
49  // This if statement just saves computing phi*phi^T if it is to be multiplied by zero
50  if (mpEllipticPde->ComputeLinearInUCoeffInSourceTerm(rX,pElement)!=0)
51  {
52  return prod( trans(rGradPhi), c_matrix<double, SPACE_DIM, ELEMENT_DIM+1>(prod(pde_diffusion_term, rGradPhi)) )
53  - mpEllipticPde->ComputeLinearInUCoeffInSourceTerm(rX,pElement)*outer_prod(rPhi,rPhi);
54  }
55  else
56  {
57  return prod( trans(rGradPhi), c_matrix<double, SPACE_DIM, ELEMENT_DIM+1>(prod(pde_diffusion_term, rGradPhi)) );
58  }
59 }
60 
61 template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
63  c_vector<double, ELEMENT_DIM+1>& rPhi,
64  c_matrix<double, SPACE_DIM, ELEMENT_DIM+1>& rGradPhi,
66  c_vector<double,1>& rU,
67  c_matrix<double,1,SPACE_DIM>& rGradU,
69 {
70  return mpEllipticPde->ComputeConstantInUSourceTerm(rX, pElement) * rPhi;
71 }
72 
73 
74 template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
79  : AbstractAssemblerSolverHybrid<ELEMENT_DIM,SPACE_DIM,1,NORMAL>(pMesh,pBoundaryConditions),
80  AbstractStaticLinearPdeSolver<ELEMENT_DIM,SPACE_DIM,1>(pMesh)
81 {
82  mpEllipticPde = pPde;
83 }
84 
85 template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
87 {
89  assert(this->mpLinearSystem);
90  this->mpLinearSystem->SetMatrixIsSymmetric(true);
91  this->mpLinearSystem->SetKspType("cg");
92 }
93 
95 // Explicit instantiation
97 
98 template class SimpleLinearEllipticSolver<1,1>;
99 template class SimpleLinearEllipticSolver<1,2>;
100 template class SimpleLinearEllipticSolver<1,3>;
101 template class SimpleLinearEllipticSolver<2,2>;
102 template class SimpleLinearEllipticSolver<3,3>;
virtual c_vector< double, 1 *(ELEMENT_DIM+1)> ComputeVectorTerm(c_vector< double, ELEMENT_DIM+1 > &rPhi, c_matrix< double, SPACE_DIM, ELEMENT_DIM+1 > &rGradPhi, ChastePoint< SPACE_DIM > &rX, c_vector< double, 1 > &rU, c_matrix< double, 1, SPACE_DIM > &rGradU, Element< ELEMENT_DIM, SPACE_DIM > *pElement)
void InitialiseForSolve(Vec initialSolution=NULL)
virtual void InitialiseForSolve(Vec initialSolution=NULL)
SimpleLinearEllipticSolver(AbstractTetrahedralMesh< ELEMENT_DIM, SPACE_DIM > *pMesh, AbstractLinearEllipticPde< ELEMENT_DIM, SPACE_DIM > *pPde, BoundaryConditionsContainer< ELEMENT_DIM, SPACE_DIM, 1 > *pBoundaryConditions)
AbstractLinearEllipticPde< ELEMENT_DIM, SPACE_DIM > * mpEllipticPde
virtual c_matrix< double, 1 *(ELEMENT_DIM+1), 1 *(ELEMENT_DIM+1)> ComputeMatrixTerm(c_vector< double, ELEMENT_DIM+1 > &rPhi, c_matrix< double, SPACE_DIM, ELEMENT_DIM+1 > &rGradPhi, ChastePoint< SPACE_DIM > &rX, c_vector< double, 1 > &rU, c_matrix< double, 1, SPACE_DIM > &rGradU, Element< ELEMENT_DIM, SPACE_DIM > *pElement)