/usr/include/trilinos/Zoltan2_AlgNatural.hpp is in libtrilinos-zoltan2-dev 12.12.1-5.
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//
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//
// Zoltan2: A package of combinatorial algorithms for scientific computing
// Copyright 2012 Sandia Corporation
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#ifndef _ZOLTAN2_ALGNATURAL_HPP_
#define _ZOLTAN2_ALGNATURAL_HPP_
#include <Zoltan2_Algorithm.hpp>
#include <Zoltan2_IdentifierModel.hpp>
#include <Zoltan2_OrderingSolution.hpp>
namespace Zoltan2{
////////////////////////////////////////////////////////////////////////
//! \file Zoltan2_AlgNatural.hpp
//! \brief Natural ordering == identity permutation.
//! \brief Mainly useful for testing "no ordering"
template <typename Adapter>
class AlgNatural : public Algorithm<Adapter>
{
private:
const RCP<IdentifierModel<Adapter> > model;
const RCP<Teuchos::ParameterList> pl;
const RCP<const Teuchos::Comm<int> > comm;
public:
typedef typename Adapter::lno_t lno_t;
typedef typename Adapter::gno_t gno_t;
AlgNatural(
const RCP<IdentifierModel<Adapter> > &model__,
const RCP<Teuchos::ParameterList> &pl__,
const RCP<const Teuchos::Comm<int> > &comm__
) : model(model__), pl(pl__), comm(comm__)
{
}
int globalOrder(const RCP<GlobalOrderingSolution<gno_t> > &solution) {
throw std::logic_error("AlgNatural does not yet support global ordering.");
}
int localOrder(const RCP<LocalOrderingSolution<lno_t> > &solution)
{
int ierr= 0;
HELLO;
// Local permutation only for now.
// Set identity permutation.
const size_t n = model->getLocalNumIdentifiers();
lno_t *perm = solution->getPermutationView();
if (perm){
for (size_t i=0; i<n; i++){
perm[i] = i;
}
}
else
// TODO: throw exception?
ierr = -1;
solution->setHavePerm(true);
return ierr;
}
};
}
#endif
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