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GPU TPC clusterizer: wait for the gather of the previous sector before clearing the maps #16100

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ktf wants to merge 1 commit into from
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GPU TPC clusterizer: wait for the gather of the previous sector before clearing the maps #16100

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14 changes: 7 additions & 7 deletions GPU/GPUTracking/Global/GPUChainTrackingClusterizer.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -1038,7 +1038,12 @@ int32_t GPUChainTracking::RunTPCClusterizer(bool synchronizeOutput)

using ChargeMapType = decltype(*clustererShadow.mPchargeMap);
using PeakMapType = decltype(*clustererShadow.mPpeakMap);
runKernel<GPUMemClean16>({GetGridAutoStep(lane, RecoStep::TPCClusterFinding)}, clustererShadow.mPchargeMap, TPCMapMemoryLayout<ChargeMapType>::items(GetProcessingSettings().overrideClusterizerFragmentLen) * sizeof(ChargeMapType));
deviceEvent* waitEvent = nullptr;
if (frag.index == 0 && transferRunning[lane] == 1) { // The gather of the previous sector of this lane may still read the scratch memory the maps are cleared in
waitEvent = &mEvents->stream[lane];
transferRunning[lane] = 2;
}
runKernel<GPUMemClean16>({GetGridAutoStep(lane, RecoStep::TPCClusterFinding), krnlRunRangeNone, {nullptr, waitEvent}}, clustererShadow.mPchargeMap, TPCMapMemoryLayout<ChargeMapType>::items(GetProcessingSettings().overrideClusterizerFragmentLen) * sizeof(ChargeMapType));
runKernel<GPUMemClean16>({GetGridAutoStep(lane, RecoStep::TPCClusterFinding)}, clustererShadow.mPpeakMap, TPCMapMemoryLayout<PeakMapType>::items(GetProcessingSettings().overrideClusterizerFragmentLen) * sizeof(PeakMapType));
if (frag.index == 0) {
runKernel<GPUMemClean16>({GetGridAutoStep(lane, RecoStep::TPCClusterFinding)}, clustererShadow.mPpadIsNoisy, TPC_CLUSTERER_STRIDED_PAD_COUNT * sizeof(*clustererShadow.mPpadIsNoisy));
Expand Down Expand Up @@ -1211,12 +1216,7 @@ int32_t GPUChainTracking::RunTPCClusterizer(bool synchronizeOutput)
}

if (resetClusterCounters) {
deviceEvent* waitEvent = nullptr;
if (transferRunning[lane] == 1) {
waitEvent = &mEvents->stream[lane];
transferRunning[lane] = 2;
}
runKernel<GPUMemClean16>({GetGridAutoStep(lane, RecoStep::TPCClusterFinding), krnlRunRangeNone, {nullptr, waitEvent}}, clustererShadow.mPclusterInRow, GPUTPCGeometry::NROWS * sizeof(*clustererShadow.mPclusterInRow));
runKernel<GPUMemClean16>({GetGridAutoStep(lane, RecoStep::TPCClusterFinding)}, clustererShadow.mPclusterInRow, GPUTPCGeometry::NROWS * sizeof(*clustererShadow.mPclusterInRow));
}

if (clusterer.mPmemory->counters.nPositions == 0) {
Expand Down
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