GPUTPCCFPeakFinder.h

Go to the documentation of this file.

// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef O2_GPU_PEAK_FINDER_H
#define O2_GPU_PEAK_FINDER_H
 
#include "GPUGeneralKernels.h"
#include "GPUConstantMem.h"
 
#include "clusterFinderDefs.h"
#include "Array2D.h"
#include "PackedCharge.h"
 
namespace o2::gpu
{
 
struct ChargePos;
 
class GPUTPCCFPeakFinder : public GPUKernelTemplate
{
 public:
  static constexpr size_t SCRATCH_PAD_WORK_GROUP_SIZE = GPUCA_GET_THREAD_COUNT(GPUCA_LB_GPUTPCCFPeakFinder);
  struct GPUSharedMemory : public GPUKernelTemplate::GPUSharedMemoryScan64<int16_t, SCRATCH_PAD_WORK_GROUP_SIZE> {
    ChargePos posBcast[SCRATCH_PAD_WORK_GROUP_SIZE];
    PackedCharge buf[SCRATCH_PAD_WORK_GROUP_SIZE * SCRATCH_PAD_SEARCH_N];
  };
 
  typedef GPUTPCClusterFinder processorType;
  GPUhdi() static processorType* Processor(GPUConstantMem& processors)
  {
    return processors.tpcClusterer;
  }
 
  GPUhdi() constexpr static GPUDataTypes::RecoStep GetRecoStep()
  {
    return GPUDataTypes::RecoStep::TPCClusterFinding;
  }
 
  template <int32_t iKernel = defaultKernel, typename... Args>
  GPUd() static void Thread(int32_t nBlocks, int32_t nThreads, int32_t iBlock, int32_t iThread, GPUSharedMemory& smem, processorType& clusterer, Args... args);
 
 private:
  static GPUd() void findPeaksImpl(int32_t, int32_t, int32_t, int32_t, GPUSharedMemory&, const Array2D<PackedCharge>&, const uint8_t*, const ChargePos*, tpccf::SizeT, const GPUSettingsRec&, const TPCPadGainCalib&, uint8_t*, Array2D<uint8_t>&);
 
  static GPUd() bool isPeak(GPUSharedMemory&, tpccf::Charge, const ChargePos&, uint16_t, const Array2D<PackedCharge>&, const GPUSettingsRec&, ChargePos*, PackedCharge*);
};
 
} // namespace o2::gpu
 
#endif