Merge pull request #5894 from xlaussel/avoid_samelookup_in_heap_map

Avoid samelookup in heap map
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Denis Chapligin 2020-12-20 22:17:49 +02:00 committed by GitHub
commit eb1d399f3b
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7 changed files with 292 additions and 236 deletions

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@ -24,11 +24,10 @@ namespace ch
// Stalling // Stalling
template <bool DIRECTION, typename HeapT> template <bool DIRECTION, typename HeapT>
bool stallAtNode(const DataFacade<Algorithm> &facade, bool stallAtNode(const DataFacade<Algorithm> &facade,
const NodeID node, const typename HeapT::HeapNode &heapNode,
const EdgeWeight weight,
const HeapT &query_heap) const HeapT &query_heap)
{ {
for (auto edge : facade.GetAdjacentEdgeRange(node)) for (auto edge : facade.GetAdjacentEdgeRange(heapNode.node))
{ {
const auto &data = facade.GetEdgeData(edge); const auto &data = facade.GetEdgeData(edge);
if (DIRECTION == REVERSE_DIRECTION ? data.forward : data.backward) if (DIRECTION == REVERSE_DIRECTION ? data.forward : data.backward)
@ -36,9 +35,10 @@ bool stallAtNode(const DataFacade<Algorithm> &facade,
const NodeID to = facade.GetTarget(edge); const NodeID to = facade.GetTarget(edge);
const EdgeWeight edge_weight = data.weight; const EdgeWeight edge_weight = data.weight;
BOOST_ASSERT_MSG(edge_weight > 0, "edge_weight invalid"); BOOST_ASSERT_MSG(edge_weight > 0, "edge_weight invalid");
if (query_heap.WasInserted(to)) const auto toHeapNode = query_heap.GetHeapNodeIfWasInserted(to);
if (toHeapNode)
{ {
if (query_heap.GetKey(to) + edge_weight < weight) if (toHeapNode->weight + edge_weight < heapNode.weight)
{ {
return true; return true;
} }
@ -50,11 +50,10 @@ bool stallAtNode(const DataFacade<Algorithm> &facade,
template <bool DIRECTION> template <bool DIRECTION>
void relaxOutgoingEdges(const DataFacade<Algorithm> &facade, void relaxOutgoingEdges(const DataFacade<Algorithm> &facade,
const NodeID node, const SearchEngineData<Algorithm>::QueryHeap::HeapNode &heapNode,
const EdgeWeight weight,
SearchEngineData<Algorithm>::QueryHeap &heap) SearchEngineData<Algorithm>::QueryHeap &heap)
{ {
for (const auto edge : facade.GetAdjacentEdgeRange(node)) for (const auto edge : facade.GetAdjacentEdgeRange(heapNode.node))
{ {
const auto &data = facade.GetEdgeData(edge); const auto &data = facade.GetEdgeData(edge);
if (DIRECTION == FORWARD_DIRECTION ? data.forward : data.backward) if (DIRECTION == FORWARD_DIRECTION ? data.forward : data.backward)
@ -63,19 +62,21 @@ void relaxOutgoingEdges(const DataFacade<Algorithm> &facade,
const EdgeWeight edge_weight = data.weight; const EdgeWeight edge_weight = data.weight;
BOOST_ASSERT_MSG(edge_weight > 0, "edge_weight invalid"); BOOST_ASSERT_MSG(edge_weight > 0, "edge_weight invalid");
const EdgeWeight to_weight = weight + edge_weight; const EdgeWeight to_weight = heapNode.weight + edge_weight;
const auto toHeapNode = heap.GetHeapNodeIfWasInserted(to);
// New Node discovered -> Add to Heap + Node Info Storage // New Node discovered -> Add to Heap + Node Info Storage
if (!heap.WasInserted(to)) if (!toHeapNode)
{ {
heap.Insert(to, to_weight, node); heap.Insert(to, to_weight, heapNode.node);
} }
// Found a shorter Path -> Update weight // Found a shorter Path -> Update weight
else if (to_weight < heap.GetKey(to)) else if (to_weight < toHeapNode->weight)
{ {
// new parent // new parent
heap.GetData(to).parent = node; toHeapNode->data.parent = heapNode.node;
heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
heap.DecreaseKey(*toHeapNode);
} }
} }
} }
@ -122,35 +123,35 @@ void routingStep(const DataFacade<Algorithm> &facade,
const bool force_loop_forward, const bool force_loop_forward,
const bool force_loop_reverse) const bool force_loop_reverse)
{ {
const NodeID node = forward_heap.DeleteMin(); auto heapNode = forward_heap.DeleteMinGetHeapNode();
const EdgeWeight weight = forward_heap.GetKey(node); const auto reverseHeapNode = reverse_heap.GetHeapNodeIfWasInserted(heapNode.node);
if (reverse_heap.WasInserted(node)) if (reverseHeapNode)
{ {
const EdgeWeight new_weight = reverse_heap.GetKey(node) + weight; const EdgeWeight new_weight = reverseHeapNode->weight + heapNode.weight;
if (new_weight < upper_bound) if (new_weight < upper_bound)
{ {
// if loops are forced, they are so at the source // if loops are forced, they are so at the source
if ((force_loop_forward && forward_heap.GetData(node).parent == node) || if ((force_loop_forward && heapNode.data.parent == heapNode.node) ||
(force_loop_reverse && reverse_heap.GetData(node).parent == node) || (force_loop_reverse && reverseHeapNode->data.parent == heapNode.node) ||
// in this case we are looking at a bi-directional way where the source // in this case we are looking at a bi-directional way where the source
// and target phantom are on the same edge based node // and target phantom are on the same edge based node
new_weight < 0) new_weight < 0)
{ {
// check whether there is a loop present at the node // check whether there is a loop present at the node
for (const auto edge : facade.GetAdjacentEdgeRange(node)) for (const auto edge : facade.GetAdjacentEdgeRange(heapNode.node))
{ {
const auto &data = facade.GetEdgeData(edge); const auto &data = facade.GetEdgeData(edge);
if (DIRECTION == FORWARD_DIRECTION ? data.forward : data.backward) if (DIRECTION == FORWARD_DIRECTION ? data.forward : data.backward)
{ {
const NodeID to = facade.GetTarget(edge); const NodeID to = facade.GetTarget(edge);
if (to == node) if (to == heapNode.node)
{ {
const EdgeWeight edge_weight = data.weight; const EdgeWeight edge_weight = data.weight;
const EdgeWeight loop_weight = new_weight + edge_weight; const EdgeWeight loop_weight = new_weight + edge_weight;
if (loop_weight >= 0 && loop_weight < upper_bound) if (loop_weight >= 0 && loop_weight < upper_bound)
{ {
middle_node_id = node; middle_node_id = heapNode.node;
upper_bound = loop_weight; upper_bound = loop_weight;
} }
} }
@ -161,7 +162,7 @@ void routingStep(const DataFacade<Algorithm> &facade,
{ {
BOOST_ASSERT(new_weight >= 0); BOOST_ASSERT(new_weight >= 0);
middle_node_id = node; middle_node_id = heapNode.node;
upper_bound = new_weight; upper_bound = new_weight;
} }
} }
@ -170,19 +171,19 @@ void routingStep(const DataFacade<Algorithm> &facade,
// make sure we don't terminate too early if we initialize the weight // make sure we don't terminate too early if we initialize the weight
// for the nodes in the forward heap with the forward/reverse offset // for the nodes in the forward heap with the forward/reverse offset
BOOST_ASSERT(min_edge_offset <= 0); BOOST_ASSERT(min_edge_offset <= 0);
if (weight + min_edge_offset > upper_bound) if (heapNode.weight + min_edge_offset > upper_bound)
{ {
forward_heap.DeleteAll(); forward_heap.DeleteAll();
return; return;
} }
// Stalling // Stalling
if (STALLING && stallAtNode<DIRECTION>(facade, node, weight, forward_heap)) if (STALLING && stallAtNode<DIRECTION>(facade, heapNode, forward_heap))
{ {
return; return;
} }
relaxOutgoingEdges<DIRECTION>(facade, node, weight, forward_heap); relaxOutgoingEdges<DIRECTION>(facade, heapNode, forward_heap);
} }
template <bool UseDuration> template <bool UseDuration>

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@ -228,40 +228,42 @@ retrievePackedPathFromHeap(const SearchEngineData<Algorithm>::QueryHeap &forward
template <bool DIRECTION, typename Algorithm, typename... Args> template <bool DIRECTION, typename Algorithm, typename... Args>
void relaxOutgoingEdges(const DataFacade<Algorithm> &facade, void relaxOutgoingEdges(const DataFacade<Algorithm> &facade,
typename SearchEngineData<Algorithm>::QueryHeap &forward_heap, typename SearchEngineData<Algorithm>::QueryHeap &forward_heap,
const NodeID node, const typename SearchEngineData<Algorithm>::QueryHeap::HeapNode &heapNode,
const EdgeWeight weight,
Args... args) Args... args)
{ {
const auto &partition = facade.GetMultiLevelPartition(); const auto &partition = facade.GetMultiLevelPartition();
const auto &cells = facade.GetCellStorage(); const auto &cells = facade.GetCellStorage();
const auto &metric = facade.GetCellMetric(); const auto &metric = facade.GetCellMetric();
const auto level = getNodeQueryLevel(partition, node, args...); const auto level = getNodeQueryLevel(partition, heapNode.node, args...);
if (level >= 1 && !forward_heap.GetData(node).from_clique_arc) if (level >= 1 && !heapNode.data.from_clique_arc)
{ {
if (DIRECTION == FORWARD_DIRECTION) if (DIRECTION == FORWARD_DIRECTION)
{ {
// Shortcuts in forward direction // Shortcuts in forward direction
const auto &cell = cells.GetCell(metric, level, partition.GetCell(level, node)); const auto &cell =
cells.GetCell(metric, level, partition.GetCell(level, heapNode.node));
auto destination = cell.GetDestinationNodes().begin(); auto destination = cell.GetDestinationNodes().begin();
for (auto shortcut_weight : cell.GetOutWeight(node)) for (auto shortcut_weight : cell.GetOutWeight(heapNode.node))
{ {
BOOST_ASSERT(destination != cell.GetDestinationNodes().end()); BOOST_ASSERT(destination != cell.GetDestinationNodes().end());
const NodeID to = *destination; const NodeID to = *destination;
if (shortcut_weight != INVALID_EDGE_WEIGHT && node != to) if (shortcut_weight != INVALID_EDGE_WEIGHT && heapNode.node != to)
{ {
const EdgeWeight to_weight = weight + shortcut_weight; const EdgeWeight to_weight = heapNode.weight + shortcut_weight;
BOOST_ASSERT(to_weight >= weight); BOOST_ASSERT(to_weight >= heapNode.weight);
if (!forward_heap.WasInserted(to)) const auto toHeapNode = forward_heap.GetHeapNodeIfWasInserted(to);
if (!toHeapNode)
{ {
forward_heap.Insert(to, to_weight, {node, true}); forward_heap.Insert(to, to_weight, {heapNode.node, true});
} }
else if (to_weight < forward_heap.GetKey(to)) else if (to_weight < toHeapNode->weight)
{ {
forward_heap.GetData(to) = {node, true}; toHeapNode->data = {heapNode.node, true};
forward_heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
forward_heap.DecreaseKey(*toHeapNode);
} }
} }
++destination; ++destination;
@ -270,25 +272,28 @@ void relaxOutgoingEdges(const DataFacade<Algorithm> &facade,
else else
{ {
// Shortcuts in backward direction // Shortcuts in backward direction
const auto &cell = cells.GetCell(metric, level, partition.GetCell(level, node)); const auto &cell =
cells.GetCell(metric, level, partition.GetCell(level, heapNode.node));
auto source = cell.GetSourceNodes().begin(); auto source = cell.GetSourceNodes().begin();
for (auto shortcut_weight : cell.GetInWeight(node)) for (auto shortcut_weight : cell.GetInWeight(heapNode.node))
{ {
BOOST_ASSERT(source != cell.GetSourceNodes().end()); BOOST_ASSERT(source != cell.GetSourceNodes().end());
const NodeID to = *source; const NodeID to = *source;
if (shortcut_weight != INVALID_EDGE_WEIGHT && node != to) if (shortcut_weight != INVALID_EDGE_WEIGHT && heapNode.node != to)
{ {
const EdgeWeight to_weight = weight + shortcut_weight; const EdgeWeight to_weight = heapNode.weight + shortcut_weight;
BOOST_ASSERT(to_weight >= weight); BOOST_ASSERT(to_weight >= heapNode.weight);
if (!forward_heap.WasInserted(to)) const auto toHeapNode = forward_heap.GetHeapNodeIfWasInserted(to);
if (!toHeapNode)
{ {
forward_heap.Insert(to, to_weight, {node, true}); forward_heap.Insert(to, to_weight, {heapNode.node, true});
} }
else if (to_weight < forward_heap.GetKey(to)) else if (to_weight < toHeapNode->weight)
{ {
forward_heap.GetData(to) = {node, true}; toHeapNode->data = {heapNode.node, true};
forward_heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
forward_heap.DecreaseKey(*toHeapNode);
} }
} }
++source; ++source;
@ -297,7 +302,7 @@ void relaxOutgoingEdges(const DataFacade<Algorithm> &facade,
} }
// Boundary edges // Boundary edges
for (const auto edge : facade.GetBorderEdgeRange(level, node)) for (const auto edge : facade.GetBorderEdgeRange(level, heapNode.node))
{ {
const auto &edge_data = facade.GetEdgeData(edge); const auto &edge_data = facade.GetEdgeData(edge);
@ -310,21 +315,23 @@ void relaxOutgoingEdges(const DataFacade<Algorithm> &facade,
checkParentCellRestriction(partition.GetCell(level + 1, to), args...)) checkParentCellRestriction(partition.GetCell(level + 1, to), args...))
{ {
const auto node_weight = const auto node_weight =
facade.GetNodeWeight(DIRECTION == FORWARD_DIRECTION ? node : to); facade.GetNodeWeight(DIRECTION == FORWARD_DIRECTION ? heapNode.node : to);
const auto turn_penalty = facade.GetWeightPenaltyForEdgeID(edge_data.turn_id); const auto turn_penalty = facade.GetWeightPenaltyForEdgeID(edge_data.turn_id);
// TODO: BOOST_ASSERT(edge_data.weight == node_weight + turn_penalty); // TODO: BOOST_ASSERT(edge_data.weight == node_weight + turn_penalty);
const EdgeWeight to_weight = weight + node_weight + turn_penalty; const EdgeWeight to_weight = heapNode.weight + node_weight + turn_penalty;
if (!forward_heap.WasInserted(to)) const auto toHeapNode = forward_heap.GetHeapNodeIfWasInserted(to);
if (!toHeapNode)
{ {
forward_heap.Insert(to, to_weight, {node, false}); forward_heap.Insert(to, to_weight, {heapNode.node, false});
} }
else if (to_weight < forward_heap.GetKey(to)) else if (to_weight < toHeapNode->weight)
{ {
forward_heap.GetData(to) = {node, false}; toHeapNode->data = {heapNode.node, false};
forward_heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
forward_heap.DecreaseKey(*toHeapNode);
} }
} }
} }
@ -341,34 +348,35 @@ void routingStep(const DataFacade<Algorithm> &facade,
const bool force_loop_reverse, const bool force_loop_reverse,
Args... args) Args... args)
{ {
const auto node = forward_heap.DeleteMin(); const auto heapNode = forward_heap.DeleteMinGetHeapNode();
const auto weight = forward_heap.GetKey(node); const auto weight = heapNode.weight;
BOOST_ASSERT(!facade.ExcludeNode(node)); BOOST_ASSERT(!facade.ExcludeNode(heapNode.node));
// Upper bound for the path source -> target with // Upper bound for the path source -> target with
// weight(source -> node) = weight weight(to -> target) ≤ reverse_weight // weight(source -> node) = weight weight(to -> target) ≤ reverse_weight
// is weight + reverse_weight // is weight + reverse_weight
// More tighter upper bound requires additional condition reverse_heap.WasRemoved(to) // More tighter upper bound requires additional condition reverse_heap.WasRemoved(to)
// with weight(to -> target) = reverse_weight and all weights ≥ 0 // with weight(to -> target) = reverse_weight and all weights ≥ 0
if (reverse_heap.WasInserted(node)) const auto reverseHeapNode = reverse_heap.GetHeapNodeIfWasInserted(heapNode.node);
if (reverseHeapNode)
{ {
auto reverse_weight = reverse_heap.GetKey(node); auto reverse_weight = reverseHeapNode->weight;
auto path_weight = weight + reverse_weight; auto path_weight = weight + reverse_weight;
// MLD uses loops forcing only to prune single node paths in forward and/or // MLD uses loops forcing only to prune single node paths in forward and/or
// backward direction (there is no need to force loops in MLD but in CH) // backward direction (there is no need to force loops in MLD but in CH)
if (!(force_loop_forward && forward_heap.GetData(node).parent == node) && if (!(force_loop_forward && heapNode.data.parent == heapNode.node) &&
!(force_loop_reverse && reverse_heap.GetData(node).parent == node) && !(force_loop_reverse && reverseHeapNode->data.parent == heapNode.node) &&
(path_weight >= 0) && (path_weight < path_upper_bound)) (path_weight >= 0) && (path_weight < path_upper_bound))
{ {
middle_node = node; middle_node = heapNode.node;
path_upper_bound = path_weight; path_upper_bound = path_weight;
} }
} }
// Relax outgoing edges from node // Relax outgoing edges from node
relaxOutgoingEdges<DIRECTION>(facade, forward_heap, node, weight, args...); relaxOutgoingEdges<DIRECTION>(facade, forward_heap, heapNode, args...);
} }
// With (s, middle, t) we trace back the paths middle -> s and middle -> t. // With (s, middle, t) we trace back the paths middle -> s and middle -> t.

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@ -3,6 +3,7 @@
#include <boost/assert.hpp> #include <boost/assert.hpp>
#include <boost/heap/d_ary_heap.hpp> #include <boost/heap/d_ary_heap.hpp>
#include <boost/optional.hpp>
#include <algorithm> #include <algorithm>
#include <limits> #include <limits>
@ -194,10 +195,26 @@ template <typename NodeID,
typename IndexStorage = ArrayStorage<NodeID, NodeID>> typename IndexStorage = ArrayStorage<NodeID, NodeID>>
class QueryHeap class QueryHeap
{ {
private:
using HeapData = std::pair<Weight, Key>;
using HeapContainer = boost::heap::d_ary_heap<HeapData,
boost::heap::arity<4>,
boost::heap::mutable_<true>,
boost::heap::compare<std::greater<HeapData>>>;
using HeapHandle = typename HeapContainer::handle_type;
public: public:
using WeightType = Weight; using WeightType = Weight;
using DataType = Data; using DataType = Data;
struct HeapNode
{
HeapHandle handle;
NodeID node;
Weight weight;
Data data;
};
template <typename... StorageArgs> explicit QueryHeap(StorageArgs... args) : node_index(args...) template <typename... StorageArgs> explicit QueryHeap(StorageArgs... args) : node_index(args...)
{ {
Clear(); Clear();
@ -230,6 +247,13 @@ class QueryHeap
return inserted_nodes[index].data; return inserted_nodes[index].data;
} }
HeapNode &getHeapNode(NodeID node)
{
const auto index = node_index.peek_index(node);
BOOST_ASSERT((int)index >= 0 && (int)index < (int)inserted_nodes.size());
return inserted_nodes[index];
}
Data const &GetData(NodeID node) const Data const &GetData(NodeID node) const
{ {
const auto index = node_index.peek_index(node); const auto index = node_index.peek_index(node);
@ -269,6 +293,28 @@ class QueryHeap
return inserted_nodes[index].node == node; return inserted_nodes[index].node == node;
} }
boost::optional<HeapNode &> GetHeapNodeIfWasInserted(const NodeID node)
{
const auto index = node_index.peek_index(node);
if (index >= static_cast<decltype(index)>(inserted_nodes.size()) ||
inserted_nodes[index].node != node)
{
return {};
}
return inserted_nodes[index];
}
boost::optional<const HeapNode &> GetHeapNodeIfWasInserted(const NodeID node) const
{
const auto index = node_index.peek_index(node);
if (index >= static_cast<decltype(index)>(inserted_nodes.size()) ||
inserted_nodes[index].node != node)
{
return {};
}
return inserted_nodes[index];
}
NodeID Min() const NodeID Min() const
{ {
BOOST_ASSERT(!heap.empty()); BOOST_ASSERT(!heap.empty());
@ -290,6 +336,15 @@ class QueryHeap
return inserted_nodes[removedIndex].node; return inserted_nodes[removedIndex].node;
} }
HeapNode &DeleteMinGetHeapNode()
{
BOOST_ASSERT(!heap.empty());
const Key removedIndex = heap.top().second;
heap.pop();
inserted_nodes[removedIndex].handle = heap.s_handle_from_iterator(heap.end());
return inserted_nodes[removedIndex];
}
void DeleteAll() void DeleteAll()
{ {
auto const none_handle = heap.s_handle_from_iterator(heap.end()); auto const none_handle = heap.s_handle_from_iterator(heap.end());
@ -308,22 +363,13 @@ class QueryHeap
heap.increase(reference.handle, std::make_pair(weight, index)); heap.increase(reference.handle, std::make_pair(weight, index));
} }
private: void DecreaseKey(const HeapNode &heapNode)
using HeapData = std::pair<Weight, Key>;
using HeapContainer = boost::heap::d_ary_heap<HeapData,
boost::heap::arity<4>,
boost::heap::mutable_<true>,
boost::heap::compare<std::greater<HeapData>>>;
using HeapHandle = typename HeapContainer::handle_type;
struct HeapNode
{ {
HeapHandle handle; BOOST_ASSERT(!WasRemoved(heapNode.node));
NodeID node; heap.increase(heapNode.handle, std::make_pair(heapNode.weight, (*heapNode.handle).second));
Weight weight; }
Data data;
};
private:
std::vector<HeapNode> inserted_nodes; std::vector<HeapNode> inserted_nodes;
HeapContainer heap; HeapContainer heap;
IndexStorage node_index; IndexStorage node_index;

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@ -32,16 +32,18 @@ void relaxNode(ContractorHeap &heap,
} }
const EdgeWeight to_weight = node_weight + data.weight; const EdgeWeight to_weight = node_weight + data.weight;
const auto toHeapNode = heap.GetHeapNodeIfWasInserted(to);
// New Node discovered -> Add to Heap + Node Info Storage // New Node discovered -> Add to Heap + Node Info Storage
if (!heap.WasInserted(to)) if (!toHeapNode)
{ {
heap.Insert(to, to_weight, ContractorHeapData{current_hop, false}); heap.Insert(to, to_weight, ContractorHeapData{current_hop, false});
} }
// Found a shorter Path -> Update weight // Found a shorter Path -> Update weight
else if (to_weight < heap.GetKey(to)) else if (to_weight < toHeapNode->weight)
{ {
heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
heap.GetData(to).hop = current_hop; heap.DecreaseKey(*toHeapNode);
toHeapNode->data.hop = current_hop;
} }
} }
} }

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@ -62,11 +62,12 @@ void alternativeRoutingStep(const DataFacade<Algorithm> &facade,
QueryHeap &forward_heap = DIRECTION == FORWARD_DIRECTION ? heap1 : heap2; QueryHeap &forward_heap = DIRECTION == FORWARD_DIRECTION ? heap1 : heap2;
QueryHeap &reverse_heap = DIRECTION == FORWARD_DIRECTION ? heap2 : heap1; QueryHeap &reverse_heap = DIRECTION == FORWARD_DIRECTION ? heap2 : heap1;
const NodeID node = forward_heap.DeleteMin(); // Take a copy (no ref &) of the extracted node because otherwise could be modified later if
const EdgeWeight weight = forward_heap.GetKey(node); // toHeapNode is the same
const auto heapNode = forward_heap.DeleteMinGetHeapNode();
const auto scaled_weight = const auto scaled_weight =
static_cast<EdgeWeight>((weight + min_edge_offset) / (1. + VIAPATH_EPSILON)); static_cast<EdgeWeight>((heapNode.weight + min_edge_offset) / (1. + VIAPATH_EPSILON));
if ((INVALID_EDGE_WEIGHT != *upper_bound_to_shortest_path_weight) && if ((INVALID_EDGE_WEIGHT != *upper_bound_to_shortest_path_weight) &&
(scaled_weight > *upper_bound_to_shortest_path_weight)) (scaled_weight > *upper_bound_to_shortest_path_weight))
{ {
@ -74,35 +75,36 @@ void alternativeRoutingStep(const DataFacade<Algorithm> &facade,
return; return;
} }
search_space.emplace_back(forward_heap.GetData(node).parent, node); search_space.emplace_back(heapNode.data.parent, heapNode.node);
if (reverse_heap.WasInserted(node)) const auto reverseHeapNode = reverse_heap.GetHeapNodeIfWasInserted(heapNode.node);
if (reverseHeapNode)
{ {
search_space_intersection.emplace_back(node); search_space_intersection.emplace_back(heapNode.node);
const EdgeWeight new_weight = reverse_heap.GetKey(node) + weight; const EdgeWeight new_weight = reverseHeapNode->weight + heapNode.weight;
if (new_weight < *upper_bound_to_shortest_path_weight) if (new_weight < *upper_bound_to_shortest_path_weight)
{ {
if (new_weight >= 0) if (new_weight >= 0)
{ {
*middle_node = node; *middle_node = heapNode.node;
*upper_bound_to_shortest_path_weight = new_weight; *upper_bound_to_shortest_path_weight = new_weight;
} }
else else
{ {
// check whether there is a loop present at the node // check whether there is a loop present at the node
const auto loop_weight = std::get<0>(getLoopWeight<false>(facade, node)); const auto loop_weight = std::get<0>(getLoopWeight<false>(facade, heapNode.node));
const EdgeWeight new_weight_with_loop = new_weight + loop_weight; const EdgeWeight new_weight_with_loop = new_weight + loop_weight;
if (loop_weight != INVALID_EDGE_WEIGHT && if (loop_weight != INVALID_EDGE_WEIGHT &&
new_weight_with_loop <= *upper_bound_to_shortest_path_weight) new_weight_with_loop <= *upper_bound_to_shortest_path_weight)
{ {
*middle_node = node; *middle_node = heapNode.node;
*upper_bound_to_shortest_path_weight = loop_weight; *upper_bound_to_shortest_path_weight = loop_weight;
} }
} }
} }
} }
for (auto edge : facade.GetAdjacentEdgeRange(node)) for (auto edge : facade.GetAdjacentEdgeRange(heapNode.node))
{ {
const auto &data = facade.GetEdgeData(edge); const auto &data = facade.GetEdgeData(edge);
if (DIRECTION == FORWARD_DIRECTION ? data.forward : data.backward) if (DIRECTION == FORWARD_DIRECTION ? data.forward : data.backward)
@ -111,20 +113,22 @@ void alternativeRoutingStep(const DataFacade<Algorithm> &facade,
const EdgeWeight edge_weight = data.weight; const EdgeWeight edge_weight = data.weight;
BOOST_ASSERT(edge_weight > 0); BOOST_ASSERT(edge_weight > 0);
const EdgeWeight to_weight = weight + edge_weight; const EdgeWeight to_weight = heapNode.weight + edge_weight;
const auto toHeapNode = forward_heap.GetHeapNodeIfWasInserted(to);
// New Node discovered -> Add to Heap + Node Info Storage // New Node discovered -> Add to Heap + Node Info Storage
if (!forward_heap.WasInserted(to)) if (!toHeapNode)
{ {
forward_heap.Insert(to, to_weight, node); forward_heap.Insert(to, to_weight, heapNode.node);
} }
// Found a shorter Path -> Update weight // Found a shorter Path -> Update weight
else if (to_weight < forward_heap.GetKey(to)) else if (to_weight < toHeapNode->weight)
{ {
// new parent // new parent
forward_heap.GetData(to).parent = node; toHeapNode->data.parent = heapNode.node;
// decreased weight // decreased weight
forward_heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
forward_heap.DecreaseKey(*toHeapNode);
} }
} }
} }

View File

@ -45,20 +45,18 @@ inline bool addLoopWeight(const DataFacade<ch::Algorithm> &facade,
} }
template <bool DIRECTION> template <bool DIRECTION>
void relaxOutgoingEdges(const DataFacade<Algorithm> &facade, void relaxOutgoingEdges(
const NodeID node, const DataFacade<Algorithm> &facade,
const EdgeWeight weight, const typename SearchEngineData<Algorithm>::ManyToManyQueryHeap::HeapNode &heapNode,
const EdgeDuration duration, typename SearchEngineData<Algorithm>::ManyToManyQueryHeap &query_heap,
const EdgeDistance distance, const PhantomNode &)
typename SearchEngineData<Algorithm>::ManyToManyQueryHeap &query_heap,
const PhantomNode &)
{ {
if (stallAtNode<DIRECTION>(facade, node, weight, query_heap)) if (stallAtNode<DIRECTION>(facade, heapNode, query_heap))
{ {
return; return;
} }
for (auto edge : facade.GetAdjacentEdgeRange(node)) for (auto edge : facade.GetAdjacentEdgeRange(heapNode.node))
{ {
const auto &data = facade.GetEdgeData(edge); const auto &data = facade.GetEdgeData(edge);
if (DIRECTION == FORWARD_DIRECTION ? data.forward : data.backward) if (DIRECTION == FORWARD_DIRECTION ? data.forward : data.backward)
@ -70,21 +68,23 @@ void relaxOutgoingEdges(const DataFacade<Algorithm> &facade,
const auto edge_distance = data.distance; const auto edge_distance = data.distance;
BOOST_ASSERT_MSG(edge_weight > 0, "edge_weight invalid"); BOOST_ASSERT_MSG(edge_weight > 0, "edge_weight invalid");
const auto to_weight = weight + edge_weight; const auto to_weight = heapNode.weight + edge_weight;
const auto to_duration = duration + edge_duration; const auto to_duration = heapNode.data.duration + edge_duration;
const auto to_distance = distance + edge_distance; const auto to_distance = heapNode.data.distance + edge_distance;
const auto toHeapNode = query_heap.GetHeapNodeIfWasInserted(to);
// New Node discovered -> Add to Heap + Node Info Storage // New Node discovered -> Add to Heap + Node Info Storage
if (!query_heap.WasInserted(to)) if (!toHeapNode)
{ {
query_heap.Insert(to, to_weight, {node, to_duration, to_distance}); query_heap.Insert(to, to_weight, {heapNode.node, to_duration, to_distance});
} }
// Found a shorter Path -> Update weight and set new parent // Found a shorter Path -> Update weight and set new parent
else if (std::tie(to_weight, to_duration) < else if (std::tie(to_weight, to_duration) <
std::tie(query_heap.GetKey(to), query_heap.GetData(to).duration)) std::tie(toHeapNode->weight, toHeapNode->data.duration))
{ {
query_heap.GetData(to) = {node, to_duration, to_distance}; toHeapNode->data = {heapNode.node, to_duration, to_distance};
query_heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
query_heap.DecreaseKey(*toHeapNode);
} }
} }
} }
@ -101,15 +101,14 @@ void forwardRoutingStep(const DataFacade<Algorithm> &facade,
std::vector<NodeID> &middle_nodes_table, std::vector<NodeID> &middle_nodes_table,
const PhantomNode &phantom_node) const PhantomNode &phantom_node)
{ {
const auto node = query_heap.DeleteMin(); // Take a copy of the extracted node because otherwise could be modified later if toHeapNode is
const auto source_weight = query_heap.GetKey(node); // the same
const auto source_duration = query_heap.GetData(node).duration; const auto heapNode = query_heap.DeleteMinGetHeapNode();
const auto source_distance = query_heap.GetData(node).distance;
// Check if each encountered node has an entry // Check if each encountered node has an entry
const auto &bucket_list = std::equal_range(search_space_with_buckets.begin(), const auto &bucket_list = std::equal_range(search_space_with_buckets.begin(),
search_space_with_buckets.end(), search_space_with_buckets.end(),
node, heapNode.node,
NodeBucket::Compare()); NodeBucket::Compare());
for (const auto &current_bucket : boost::make_iterator_range(bucket_list)) for (const auto &current_bucket : boost::make_iterator_range(bucket_list))
{ {
@ -129,18 +128,18 @@ void forwardRoutingStep(const DataFacade<Algorithm> &facade,
: distances_table[row_index * number_of_targets + column_index]; : distances_table[row_index * number_of_targets + column_index];
// Check if new weight is better // Check if new weight is better
auto new_weight = source_weight + target_weight; auto new_weight = heapNode.weight + target_weight;
auto new_duration = source_duration + target_duration; auto new_duration = heapNode.data.duration + target_duration;
auto new_distance = source_distance + target_distance; auto new_distance = heapNode.data.distance + target_distance;
if (new_weight < 0) if (new_weight < 0)
{ {
if (addLoopWeight(facade, node, new_weight, new_duration, new_distance)) if (addLoopWeight(facade, heapNode.node, new_weight, new_duration, new_distance))
{ {
current_weight = std::min(current_weight, new_weight); current_weight = std::min(current_weight, new_weight);
current_duration = std::min(current_duration, new_duration); current_duration = std::min(current_duration, new_duration);
current_distance = std::min(current_distance, new_distance); current_distance = std::min(current_distance, new_distance);
middle_nodes_table[row_index * number_of_targets + column_index] = node; middle_nodes_table[row_index * number_of_targets + column_index] = heapNode.node;
} }
} }
else if (std::tie(new_weight, new_duration) < std::tie(current_weight, current_duration)) else if (std::tie(new_weight, new_duration) < std::tie(current_weight, current_duration))
@ -148,12 +147,11 @@ void forwardRoutingStep(const DataFacade<Algorithm> &facade,
current_weight = new_weight; current_weight = new_weight;
current_duration = new_duration; current_duration = new_duration;
current_distance = new_distance; current_distance = new_distance;
middle_nodes_table[row_index * number_of_targets + column_index] = node; middle_nodes_table[row_index * number_of_targets + column_index] = heapNode.node;
} }
} }
relaxOutgoingEdges<FORWARD_DIRECTION>( relaxOutgoingEdges<FORWARD_DIRECTION>(facade, heapNode, query_heap, phantom_node);
facade, node, source_weight, source_duration, source_distance, query_heap, phantom_node);
} }
void backwardRoutingStep(const DataFacade<Algorithm> &facade, void backwardRoutingStep(const DataFacade<Algorithm> &facade,
@ -162,18 +160,19 @@ void backwardRoutingStep(const DataFacade<Algorithm> &facade,
std::vector<NodeBucket> &search_space_with_buckets, std::vector<NodeBucket> &search_space_with_buckets,
const PhantomNode &phantom_node) const PhantomNode &phantom_node)
{ {
const auto node = query_heap.DeleteMin(); // Take a copy (no ref &) of the extracted node because otherwise could be modified later if
const auto target_weight = query_heap.GetKey(node); // toHeapNode is the same
const auto target_duration = query_heap.GetData(node).duration; const auto heapNode = query_heap.DeleteMinGetHeapNode();
const auto target_distance = query_heap.GetData(node).distance;
const auto parent = query_heap.GetData(node).parent;
// Store settled nodes in search space bucket // Store settled nodes in search space bucket
search_space_with_buckets.emplace_back( search_space_with_buckets.emplace_back(heapNode.node,
node, parent, column_index, target_weight, target_duration, target_distance); heapNode.data.parent,
column_index,
heapNode.weight,
heapNode.data.duration,
heapNode.data.distance);
relaxOutgoingEdges<REVERSE_DIRECTION>( relaxOutgoingEdges<REVERSE_DIRECTION>(facade, heapNode, query_heap, phantom_node);
facade, node, target_weight, target_duration, target_distance, query_heap, phantom_node);
} }
} // namespace ch } // namespace ch

View File

@ -71,38 +71,38 @@ void relaxBorderEdges(const DataFacade<mld::Algorithm> &facade,
const auto to_distance = distance + node_distance; const auto to_distance = distance + node_distance;
// New Node discovered -> Add to Heap + Node Info Storage // New Node discovered -> Add to Heap + Node Info Storage
if (!query_heap.WasInserted(to)) const auto toHeapNode = query_heap.GetHeapNodeIfWasInserted(to);
if (!toHeapNode)
{ {
query_heap.Insert(to, to_weight, {node, false, to_duration, to_distance}); query_heap.Insert(to, to_weight, {node, false, to_duration, to_distance});
} }
// Found a shorter Path -> Update weight and set new parent // Found a shorter Path -> Update weight and set new parent
else if (std::tie(to_weight, to_duration, to_distance, node) < else if (std::tie(to_weight, to_duration, to_distance, node) <
std::tie(query_heap.GetKey(to), std::tie(toHeapNode->weight,
query_heap.GetData(to).duration, toHeapNode->data.duration,
query_heap.GetData(to).distance, toHeapNode->data.distance,
query_heap.GetData(to).parent)) toHeapNode->data.parent))
{ {
query_heap.GetData(to) = {node, false, to_duration, to_distance}; toHeapNode->data = {node, false, to_duration, to_distance};
query_heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
query_heap.DecreaseKey(*toHeapNode);
} }
} }
} }
} }
template <bool DIRECTION, typename... Args> template <bool DIRECTION, typename... Args>
void relaxOutgoingEdges(const DataFacade<mld::Algorithm> &facade, void relaxOutgoingEdges(
const NodeID node, const DataFacade<mld::Algorithm> &facade,
const EdgeWeight weight, const typename SearchEngineData<mld::Algorithm>::ManyToManyQueryHeap::HeapNode &heapNode,
const EdgeDuration duration, typename SearchEngineData<mld::Algorithm>::ManyToManyQueryHeap &query_heap,
const EdgeDistance distance, Args... args)
typename SearchEngineData<mld::Algorithm>::ManyToManyQueryHeap &query_heap,
Args... args)
{ {
BOOST_ASSERT(!facade.ExcludeNode(node)); BOOST_ASSERT(!facade.ExcludeNode(heapNode.node));
const auto &partition = facade.GetMultiLevelPartition(); const auto &partition = facade.GetMultiLevelPartition();
const auto level = getNodeQueryLevel(partition, node, args...); const auto level = getNodeQueryLevel(partition, heapNode.node, args...);
// Break outgoing edges relaxation if node at the restricted level // Break outgoing edges relaxation if node at the restricted level
if (level == INVALID_LEVEL_ID) if (level == INVALID_LEVEL_ID)
@ -110,40 +110,42 @@ void relaxOutgoingEdges(const DataFacade<mld::Algorithm> &facade,
const auto &cells = facade.GetCellStorage(); const auto &cells = facade.GetCellStorage();
const auto &metric = facade.GetCellMetric(); const auto &metric = facade.GetCellMetric();
const auto &node_data = query_heap.GetData(node);
if (level >= 1 && !node_data.from_clique_arc) if (level >= 1 && !heapNode.data.from_clique_arc)
{ {
const auto &cell = cells.GetCell(metric, level, partition.GetCell(level, node)); const auto &cell = cells.GetCell(metric, level, partition.GetCell(level, heapNode.node));
if (DIRECTION == FORWARD_DIRECTION) if (DIRECTION == FORWARD_DIRECTION)
{ // Shortcuts in forward direction { // Shortcuts in forward direction
auto destination = cell.GetDestinationNodes().begin(); auto destination = cell.GetDestinationNodes().begin();
auto shortcut_durations = cell.GetOutDuration(node); auto shortcut_durations = cell.GetOutDuration(heapNode.node);
auto shortcut_distances = cell.GetOutDistance(node); auto shortcut_distances = cell.GetOutDistance(heapNode.node);
for (auto shortcut_weight : cell.GetOutWeight(node)) for (auto shortcut_weight : cell.GetOutWeight(heapNode.node))
{ {
BOOST_ASSERT(destination != cell.GetDestinationNodes().end()); BOOST_ASSERT(destination != cell.GetDestinationNodes().end());
BOOST_ASSERT(!shortcut_durations.empty()); BOOST_ASSERT(!shortcut_durations.empty());
BOOST_ASSERT(!shortcut_distances.empty()); BOOST_ASSERT(!shortcut_distances.empty());
const NodeID to = *destination; const NodeID to = *destination;
if (shortcut_weight != INVALID_EDGE_WEIGHT && node != to) if (shortcut_weight != INVALID_EDGE_WEIGHT && heapNode.node != to)
{ {
const auto to_weight = weight + shortcut_weight; const auto to_weight = heapNode.weight + shortcut_weight;
const auto to_duration = duration + shortcut_durations.front(); const auto to_duration = heapNode.data.duration + shortcut_durations.front();
const auto to_distance = distance + shortcut_distances.front(); const auto to_distance = heapNode.data.distance + shortcut_distances.front();
if (!query_heap.WasInserted(to)) const auto toHeapNode = query_heap.GetHeapNodeIfWasInserted(to);
if (!toHeapNode)
{ {
query_heap.Insert(to, to_weight, {node, true, to_duration, to_distance}); query_heap.Insert(
to, to_weight, {heapNode.node, true, to_duration, to_distance});
} }
else if (std::tie(to_weight, to_duration, to_distance, node) < else if (std::tie(to_weight, to_duration, to_distance, heapNode.node) <
std::tie(query_heap.GetKey(to), std::tie(toHeapNode->weight,
query_heap.GetData(to).duration, toHeapNode->data.duration,
query_heap.GetData(to).distance, toHeapNode->data.distance,
query_heap.GetData(to).parent)) toHeapNode->data.parent))
{ {
query_heap.GetData(to) = {node, true, to_duration, to_distance}; toHeapNode->data = {heapNode.node, true, to_duration, to_distance};
query_heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
query_heap.DecreaseKey(*toHeapNode);
} }
} }
++destination; ++destination;
@ -156,32 +158,35 @@ void relaxOutgoingEdges(const DataFacade<mld::Algorithm> &facade,
else else
{ // Shortcuts in backward direction { // Shortcuts in backward direction
auto source = cell.GetSourceNodes().begin(); auto source = cell.GetSourceNodes().begin();
auto shortcut_durations = cell.GetInDuration(node); auto shortcut_durations = cell.GetInDuration(heapNode.node);
auto shortcut_distances = cell.GetInDistance(node); auto shortcut_distances = cell.GetInDistance(heapNode.node);
for (auto shortcut_weight : cell.GetInWeight(node)) for (auto shortcut_weight : cell.GetInWeight(heapNode.node))
{ {
BOOST_ASSERT(source != cell.GetSourceNodes().end()); BOOST_ASSERT(source != cell.GetSourceNodes().end());
BOOST_ASSERT(!shortcut_durations.empty()); BOOST_ASSERT(!shortcut_durations.empty());
BOOST_ASSERT(!shortcut_distances.empty()); BOOST_ASSERT(!shortcut_distances.empty());
const NodeID to = *source; const NodeID to = *source;
if (shortcut_weight != INVALID_EDGE_WEIGHT && node != to) if (shortcut_weight != INVALID_EDGE_WEIGHT && heapNode.node != to)
{ {
const auto to_weight = weight + shortcut_weight; const auto to_weight = heapNode.weight + shortcut_weight;
const auto to_duration = duration + shortcut_durations.front(); const auto to_duration = heapNode.data.duration + shortcut_durations.front();
const auto to_distance = distance + shortcut_distances.front(); const auto to_distance = heapNode.data.distance + shortcut_distances.front();
if (!query_heap.WasInserted(to)) const auto toHeapNode = query_heap.GetHeapNodeIfWasInserted(to);
if (!toHeapNode)
{ {
query_heap.Insert(to, to_weight, {node, true, to_duration, to_distance}); query_heap.Insert(
to, to_weight, {heapNode.node, true, to_duration, to_distance});
} }
else if (std::tie(to_weight, to_duration, to_distance, node) < else if (std::tie(to_weight, to_duration, to_distance, heapNode.node) <
std::tie(query_heap.GetKey(to), std::tie(toHeapNode->weight,
query_heap.GetData(to).duration, toHeapNode->data.duration,
query_heap.GetData(to).distance, toHeapNode->data.distance,
query_heap.GetData(to).parent)) toHeapNode->data.parent))
{ {
query_heap.GetData(to) = {node, true, to_duration, to_distance}; toHeapNode->data = {heapNode.node, true, to_duration, to_distance};
query_heap.DecreaseKey(to, to_weight); toHeapNode->weight = to_weight;
query_heap.DecreaseKey(*toHeapNode);
} }
} }
++source; ++source;
@ -193,7 +198,13 @@ void relaxOutgoingEdges(const DataFacade<mld::Algorithm> &facade,
} }
} }
relaxBorderEdges<DIRECTION>(facade, node, weight, duration, distance, query_heap, level); relaxBorderEdges<DIRECTION>(facade,
heapNode.node,
heapNode.weight,
heapNode.data.duration,
heapNode.data.distance,
query_heap,
level);
} }
// //
@ -368,25 +379,17 @@ oneToManySearch(SearchEngineData<Algorithm> &engine_working_data,
while (!query_heap.Empty() && !target_nodes_index.empty()) while (!query_heap.Empty() && !target_nodes_index.empty())
{ {
// Extract node from the heap // Extract node from the heap. Take a copy (no ref) because otherwise can be modified later
const auto node = query_heap.DeleteMin(); // if toHeapNode is the same
const auto weight = query_heap.GetKey(node); const auto heapNode = query_heap.DeleteMinGetHeapNode();
const auto duration = query_heap.GetData(node).duration;
const auto distance = query_heap.GetData(node).distance;
// Update values // Update values
update_values(node, weight, duration, distance); update_values(
heapNode.node, heapNode.weight, heapNode.data.duration, heapNode.data.distance);
// Relax outgoing edges // Relax outgoing edges
relaxOutgoingEdges<DIRECTION>(facade, relaxOutgoingEdges<DIRECTION>(
node, facade, heapNode, query_heap, phantom_nodes, phantom_index, phantom_indices);
weight,
duration,
distance,
query_heap,
phantom_nodes,
phantom_index,
phantom_indices);
} }
return std::make_pair(durations, distances_table); return std::make_pair(durations, distances_table);
@ -408,15 +411,14 @@ void forwardRoutingStep(const DataFacade<Algorithm> &facade,
std::vector<NodeID> &middle_nodes_table, std::vector<NodeID> &middle_nodes_table,
const PhantomNode &phantom_node) const PhantomNode &phantom_node)
{ {
const auto node = query_heap.DeleteMin(); // Take a copy of the extracted node because otherwise could be modified later if toHeapNode is
const auto source_weight = query_heap.GetKey(node); // the same
const auto source_duration = query_heap.GetData(node).duration; const auto heapNode = query_heap.DeleteMinGetHeapNode();
const auto source_distance = query_heap.GetData(node).distance;
// Check if each encountered node has an entry // Check if each encountered node has an entry
const auto &bucket_list = std::equal_range(search_space_with_buckets.begin(), const auto &bucket_list = std::equal_range(search_space_with_buckets.begin(),
search_space_with_buckets.end(), search_space_with_buckets.end(),
node, heapNode.node,
NodeBucket::Compare()); NodeBucket::Compare());
for (const auto &current_bucket : boost::make_iterator_range(bucket_list)) for (const auto &current_bucket : boost::make_iterator_range(bucket_list))
{ {
@ -439,9 +441,9 @@ void forwardRoutingStep(const DataFacade<Algorithm> &facade,
auto &current_distance = distances_table.empty() ? nulldistance : distances_table[location]; auto &current_distance = distances_table.empty() ? nulldistance : distances_table[location];
// Check if new weight is better // Check if new weight is better
auto new_weight = source_weight + target_weight; auto new_weight = heapNode.weight + target_weight;
auto new_duration = source_duration + target_duration; auto new_duration = heapNode.data.duration + target_duration;
auto new_distance = source_distance + target_distance; auto new_distance = heapNode.data.distance + target_distance;
if (new_weight >= 0 && std::tie(new_weight, new_duration, new_distance) < if (new_weight >= 0 && std::tie(new_weight, new_duration, new_distance) <
std::tie(current_weight, current_duration, current_distance)) std::tie(current_weight, current_duration, current_distance))
@ -449,12 +451,11 @@ void forwardRoutingStep(const DataFacade<Algorithm> &facade,
current_weight = new_weight; current_weight = new_weight;
current_duration = new_duration; current_duration = new_duration;
current_distance = new_distance; current_distance = new_distance;
middle_nodes_table[location] = node; middle_nodes_table[location] = heapNode.node;
} }
} }
relaxOutgoingEdges<DIRECTION>( relaxOutgoingEdges<DIRECTION>(facade, heapNode, query_heap, phantom_node);
facade, node, source_weight, source_duration, source_distance, query_heap, phantom_node);
} }
template <bool DIRECTION> template <bool DIRECTION>
@ -464,28 +465,23 @@ void backwardRoutingStep(const DataFacade<Algorithm> &facade,
std::vector<NodeBucket> &search_space_with_buckets, std::vector<NodeBucket> &search_space_with_buckets,
const PhantomNode &phantom_node) const PhantomNode &phantom_node)
{ {
const auto node = query_heap.DeleteMin(); // Take a copy of the extracted node because otherwise could be modified later if toHeapNode is
const auto target_weight = query_heap.GetKey(node); // the same
const auto target_duration = query_heap.GetData(node).duration; const auto heapNode = query_heap.DeleteMinGetHeapNode();
const auto target_distance = query_heap.GetData(node).distance;
const auto parent = query_heap.GetData(node).parent;
const auto from_clique_arc = query_heap.GetData(node).from_clique_arc;
// Store settled nodes in search space bucket // Store settled nodes in search space bucket
search_space_with_buckets.emplace_back( search_space_with_buckets.emplace_back(heapNode.node,
node, parent, from_clique_arc, column_idx, target_weight, target_duration, target_distance); heapNode.data.parent,
heapNode.data.from_clique_arc,
column_idx,
heapNode.weight,
heapNode.data.duration,
heapNode.data.distance);
const auto &partition = facade.GetMultiLevelPartition(); const auto &partition = facade.GetMultiLevelPartition();
const auto maximal_level = partition.GetNumberOfLevels() - 1; const auto maximal_level = partition.GetNumberOfLevels() - 1;
relaxOutgoingEdges<!DIRECTION>(facade, relaxOutgoingEdges<!DIRECTION>(facade, heapNode, query_heap, phantom_node, maximal_level);
node,
target_weight,
target_duration,
target_distance,
query_heap,
phantom_node,
maximal_level);
} }
template <bool DIRECTION> template <bool DIRECTION>