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SSSP adaptive #351

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7e3d5ca
Add adaptive variant of SSSP.
insertinterestingnamehere Jul 10, 2020
e0d235d
Add test of adaptive SSSP variant.
insertinterestingnamehere Jul 10, 2020
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1 change: 1 addition & 0 deletions lonestar/analytics/cpu/sssp/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -5,3 +5,4 @@ install(TARGETS sssp-cpu DESTINATION "${CMAKE_INSTALL_BINDIR}" COMPONENT apps EX

add_test_scale(small1 sssp-cpu "${BASEINPUT}/reference/structured/rome99.gr" -delta 8)
add_test_scale(small2 sssp-cpu "${BASEINPUT}/scalefree/rmat10.gr" -delta 8)
add_test_scale(adaptive sssp-cpu "${BASEINPUT}/scalefree/rmat10.gr" -delta 1 -algo=deltaStepAdaptive)
21 changes: 15 additions & 6 deletions lonestar/analytics/cpu/sssp/SSSP.cpp
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Expand Up @@ -18,6 +18,7 @@
*/

#include "galois/Galois.h"
#include "galois/worklists/AdaptiveObim.h"
#include "galois/AtomicHelpers.h"
#include "galois/Reduction.h"
#include "galois/PriorityQueue.h"
Expand Down Expand Up @@ -59,6 +60,7 @@ enum Algo {
deltaTile = 0,
deltaStep,
deltaStepBarrier,
deltaStepAdaptive,
serDeltaTile,
serDelta,
dijkstraTile,
Expand All @@ -69,15 +71,17 @@ enum Algo {
};

const char* const ALGO_NAMES[] = {
"deltaTile", "deltaStep", "deltaStepBarrier", "serDeltaTile",
"serDelta", "dijkstraTile", "dijkstra", "topo",
"topoTile", "Auto"};
"deltaTile", "deltaStep", "deltaStepBarrier",
"deltaStepAdaptive", "serDeltaTile", "serDelta",
"dijkstraTile", "dijkstra", "topo",
"topoTile", "Auto"};

static cll::opt<Algo> algo(
"algo", cll::desc("Choose an algorithm (default value auto):"),
cll::values(clEnumVal(deltaTile, "deltaTile"),
clEnumVal(deltaStep, "deltaStep"),
clEnumVal(deltaStepBarrier, "deltaStepBarrier"),
clEnumVal(deltaStepAdaptive, "deltaStepAdaptive"),
clEnumVal(serDeltaTile, "serDeltaTile"),
clEnumVal(serDelta, "serDelta"),
clEnumVal(dijkstraTile, "dijkstraTile"),
Expand Down Expand Up @@ -111,9 +115,9 @@ using TileRangeFn = SSSP::TileRangeFn;
namespace gwl = galois::worklists;
using PSchunk = gwl::PerSocketChunkFIFO<CHUNK_SIZE>;
using OBIM = gwl::OrderedByIntegerMetric<UpdateRequestIndexer, PSchunk>;
using OBIM_Barrier =
gwl::OrderedByIntegerMetric<UpdateRequestIndexer,
PSchunk>::with_barrier<true>::type;
using OBIM_Adaptive =
gwl::AdaptiveOrderedByIntegerMetric<UpdateRequestIndexer, PSchunk>;
using OBIM_Barrier = OBIM::with_barrier<true>::type;

template <typename T, typename OBIMTy = OBIM, typename P, typename R>
void deltaStepAlgo(Graph& graph, GNode source, const P& pushWrap,
Expand Down Expand Up @@ -450,6 +454,11 @@ int main(int argc, char** argv) {
topoTileAlgo(graph, source);
break;

case deltaStepAdaptive:
deltaStepAlgo<UpdateRequest, OBIM_Adaptive>(graph, source, ReqPushWrap(),
OutEdgeRangeFn{graph});
break;

case deltaStepBarrier:
deltaStepAlgo<UpdateRequest, OBIM_Barrier>(graph, source, ReqPushWrap(),
OutEdgeRangeFn{graph});
Expand Down