Ifpack2_Details_Fildl_def.hpp

// @HEADER
// *****************************************************************************
//       Ifpack2: Templated Object-Oriented Algebraic Preconditioner Package
//
// Copyright 2009 NTESS and the Ifpack2 contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER


#ifndef __IFPACK2_FILDL_DEF_HPP__
#define __IFPACK2_FILDL_DEF_HPP__

#include "Ifpack2_Details_Fildl_decl.hpp"
#include "Ifpack2_Details_CrsArrays.hpp"
#include <Kokkos_Timer.hpp>
#include <shylu_fastildl.hpp>

namespace Ifpack2 {
namespace Details {

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

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

template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
std::string Fildl<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
    getSpTrsvType() const {
  return localPrec_->getSpTrsvType();
}

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

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

template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void Fildl<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
    initLocalPrec() {
  auto nRows = this->mat_->getLocalNumRows();
  auto& p    = this->params_;
  localPrec_ = Teuchos::rcp(new LocalFILDL(this->localRowPtrs_, this->localColInds_, this->localValues_, nRows, (p.sptrsv_algo != FastILU::SpTRSV::Fast),
                                           p.nFact, p.nTrisol, p.level, p.omega, p.shift, p.guessFlag ? 1 : 0, p.blockSizeILU, p.blockSize));
  localPrec_->initialize();
  this->initTime_ = localPrec_->getInitializeTime();
}

template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Node>
void Fildl<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 Fildl<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
    applyLocalPrec(ImplScalarArray x, ImplScalarArray 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 Fildl<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
    getName() const {
  return "Fildl";
}

#define IFPACK2_DETAILS_FILDL_INSTANT(S, L, G, N) \
  template class Ifpack2::Details::Fildl<S, L, G, N>;

}  // namespace Details
}  // namespace Ifpack2

#endif