PCShell_Jacobi.cpp

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#include <PCShell_Jacobi.h>
 
Implemente_instanciable_sans_constructeur_ni_destructeur(PCShell_Jacobi,"PC_Jacobi",PCShell_base);
 
Sortie& PCShell_Jacobi::printOn(Sortie& s ) const
{
  return PCShell_base::printOn(s);
}
 
Entree& PCShell_Jacobi::readOn(Entree& is )
{
  return is;
}
 
#ifdef PETSCKSP_H
PetscErrorCode PCShell_Jacobi::setUpPC_(PC pc, KSP ksp, Mat pmat, Vec x)
{
 
  if (diag_==nullptr)
    VecDuplicate(x, &diag_);
  MatGetDiagonal(pmat, diag_);
  VecReciprocal(diag_);
  return 0;
}
 
PetscErrorCode PCShell_Jacobi::computePC_(PC pc, Vec x, Vec y)
{
  VecPointwiseMult(y, x, diag_);
  return 0;
}
 
PetscErrorCode PCShell_Jacobi::destroyPC_(PC pc)
{
  VecDestroy(&diag_);
  return 0;
}
 
PetscErrorCode PCShell_Jacobi::preSolve_(PC pc, KSP ksp, Vec x, Vec y)
{
  return 0;
}
 
PetscErrorCode PCShell_Jacobi::postSolve_(PC pc, KSP ksp, Vec x, Vec y)
{
  return 0;
}
 
 
#endif