graphbuild.h

// Copyright (C) 2010-2022 Garth N. Wells
//
// This file is part of DOLFINx (https://www.fenicsproject.org)
//
// SPDX-License-Identifier:    LGPL-3.0-or-later
 
#pragma once
 
#include <cstdint>
#include <mpi.h>
#include <span>
#include <tuple>
#include <vector>
 
namespace dolfinx::graph
{
template <typename T>
class AdjacencyList;
}
 
namespace dolfinx::mesh
{
std::tuple<graph::AdjacencyList<std::int32_t>, std::vector<std::int64_t>,
           std::size_t, std::vector<std::int32_t>>
build_local_dual_graph(const std::span<const std::int64_t>& cells,
                       const std::span<const std::int32_t>& offsets, int tdim);
 
graph::AdjacencyList<std::int64_t>
build_dual_graph(const MPI_Comm comm,
                 const graph::AdjacencyList<std::int64_t>& cells, int tdim);
 
} // namespace dolfinx::mesh