osrm-backend/include/partition/renumber.hpp
Patrick Niklaus 0266c9d969 Renumber nodes after running osrm-partition
The new numbering uses the partition information
to sort border nodes first to compactify storages
that need access indexed by border node ID.

We also get an optimized cache performance for free
sincr we can also recursively sort the nodes by cell ID.

This implements issue #3779.
2017-06-02 18:12:13 +00:00

66 lines
1.9 KiB
C++

#ifndef OSRM_PARTITION_RENUMBER_HPP
#define OSRM_PARTITION_RENUMBER_HPP
#include "extractor/edge_based_node_segment.hpp"
#include "extractor/node_data_container.hpp"
#include "partition/bisection_to_partition.hpp"
#include "partition/edge_based_graph.hpp"
#include "util/dynamic_graph.hpp"
#include "util/static_graph.hpp"
namespace osrm
{
namespace partition
{
std::vector<std::uint32_t> makePermutation(const DynamicEdgeBasedGraph &graph,
const std::vector<Partition> &partitions);
template <typename EdgeDataT>
inline void renumber(util::DynamicGraph<EdgeDataT> &graph,
const std::vector<std::uint32_t> &permutation)
{
// dynamic graph has own specilization
graph.Renumber(permutation);
}
template <typename EdgeDataT>
inline void renumber(util::StaticGraph<EdgeDataT> &graph,
const std::vector<std::uint32_t> &permutation)
{
// static graph has own specilization
graph.Renumber(permutation);
}
inline void renumber(extractor::EdgeBasedNodeDataContainer &node_data_container,
const std::vector<std::uint32_t> &permutation)
{
node_data_container.Renumber(permutation);
}
inline void renumber(std::vector<Partition> &partitions,
const std::vector<std::uint32_t> &permutation)
{
for (auto &partition : partitions)
{
util::inplacePermutation(partition.begin(), partition.end(), permutation);
}
}
inline void renumber(util::vector_view<extractor::EdgeBasedNodeSegment> &segments,
const std::vector<std::uint32_t> &permutation)
{
for (auto &segment : segments)
{
BOOST_ASSERT(segment.forward_segment_id.enabled);
segment.forward_segment_id.id = permutation[segment.forward_segment_id.id];
if (segment.reverse_segment_id.enabled)
segment.reverse_segment_id.id = permutation[segment.reverse_segment_id.id];
}
}
}
}
#endif