graphbuild.h

// Copyright (C) 2010-2021 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 <dolfinx/common/MPI.h>
#include <dolfinx/graph/AdjacencyList.h>
#include <utility>
#include <xtensor/xarray.hpp>
 
namespace dolfinx::mesh
{
 
std::pair<graph::AdjacencyList<std::int32_t>, xt::xtensor<std::int64_t, 2>>
build_local_dual_graph(const xtl::span<const std::int64_t>& cells,
                       const xtl::span<const std::int32_t>& offsets, int tdim);
 
std::pair<graph::AdjacencyList<std::int64_t>, std::int32_t>
build_dual_graph(const MPI_Comm comm,
                 const graph::AdjacencyList<std::int64_t>& cells, int tdim);
 
} // namespace dolfinx::mesh