/usr/include/trilinos/Ifpack2_LinearPartitioner_def.hpp is in libtrilinos-ifpack2-dev 12.12.1-5.
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// ***********************************************************************
//
// Ifpack2: Tempated Object-Oriented Algebraic Preconditioner Package
// Copyright (2009) Sandia Corporation
//
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#ifndef IFPACK2_LINEAR_PARTITIONER_DEF_HPP
#define IFPACK2_LINEAR_PARTITIONER_DEF_HPP
#include "Ifpack2_ConfigDefs.hpp"
#include "Ifpack2_LinearPartitioner_decl.hpp"
namespace Ifpack2 {
//==============================================================================
// Constructor
template<class GraphType>
LinearPartitioner<GraphType>::
LinearPartitioner (const Teuchos::RCP<const row_graph_type>& graph) :
OverlappingPartitioner<GraphType> (graph)
{}
template<class GraphType>
LinearPartitioner<GraphType>::~LinearPartitioner() {}
template<class GraphType>
void
LinearPartitioner<GraphType>::
setPartitionParameters (Teuchos::ParameterList& List) {}
template<class GraphType>
void LinearPartitioner<GraphType>::computePartitions()
{
using Teuchos::as;
// Partition_ is an array of local_ordinal_type. local_ordinal_type
// may be signed or unsigned. NumLocalParts_ is int, and needs to
// be signed, since negative values are significant. Comparisons
// between signed and unsigned integers often result in compiler
// warnings, which is why we use as() for explicit conversions
// below. We also use as() because in a debug build, it checks for
// overflow.
const int mod = as<int> (this->Graph_->getNodeNumRows () /
this->NumLocalParts_);
for (size_t i = 0; i < this->Graph_->getNodeNumRows (); ++i) {
this->Partition_[i] = as<local_ordinal_type> (i / mod);
if (this->Partition_[i] >= as<local_ordinal_type> (this->NumLocalParts_)) {
this->Partition_[i] = this->NumLocalParts_ - 1;
}
}
}
}// namespace Ifpack2
#define IFPACK2_LINEARPARTITIONER_INSTANT(LO,GO,N) \
template class Ifpack2::LinearPartitioner<Tpetra::CrsGraph< LO, GO, N > >; \
template class Ifpack2::LinearPartitioner<Tpetra::RowGraph< LO, GO, N > >;
#endif // IFPACK2_LINEARPARTITIONER_DEF_HPP
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