Ifpack2_Details_Filu_def.hpp

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#ifndef __IFPACK2_FILU_DEF_HPP__ 
#define __IFPACK2_FILU_DEF_HPP__ 

#include "Ifpack2_Details_Filu_decl.hpp"
#include "Ifpack2_Details_CrsArrays.hpp"
#include <impl/Kokkos_Timer.hpp>
#include <shylu_fastilu.hpp>

namespace Ifpack2
{
namespace Details
{

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
Filu(Teuchos::RCP<const TRowMatrix> A) :
  FastILU_Base<Scalar, LocalOrdinal, GlobalOrdinal, Node>(A) {}

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
int Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
getSweeps() const
{
  return localPrec_->getNFact();
}

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
int Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
getNTrisol() const
{
  return localPrec_->getNTrisol();
}

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
checkLocalILU() const
{
  localPrec_->checkILU();
}

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
checkLocalIC() const
{
  localPrec_->checkIC();
}

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
initLocalPrec()
{
  auto nRows = this->mat_->getNodeNumRows();
  auto& p = this->params_;
  localPrec_ = Teuchos::rcp(new LocalFILU(this->localRowPtrs_, this->localColInds_, this->localValues_, nRows,
        p.nFact, p.nTrisol, p.level, p.omega,
        p.shift, p.guessFlag ? 1 : 0, p.blockSize));
  localPrec_->initialize();
  this->initTime_ = localPrec_->getInitializeTime();
}

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
computeLocalPrec()
{
  //update values in local prec (until compute(), values aren't needed)
  localPrec_->setValues(this->localValues_);
  localPrec_->compute();
  this->computeTime_ = localPrec_->getComputeTime();
}

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
applyLocalPrec(ScalarArray x, ScalarArray y) const
{
  localPrec_->apply(x, y);
  //since this may be applied to multiple vectors, add to applyTime_ instead of setting it
  this->applyTime_ += localPrec_->getApplyTime();
}

template<typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
std::string Filu<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
getName() const
{
  return "Filu";
}

#define IFPACK2_DETAILS_FILU_INSTANT(S, L, G, N) \
template class Ifpack2::Details::Filu<S, L, G, N>;

} //namespace Details
} //namespace Ifpack2

#endif