ALPAKA_ACCELERATOR_NAMESPACE::PFRecHitProducerKernelTopology< CAL > Struct Template Reference

Public Member Functions
template<typename TAcc , typename = std::enable_if_t<alpaka::isAccelerator<TAcc>>>
ALPAKA_FN_ACC void	operator() (const TAcc &acc, const typename CAL::TopologyTypeDevice::ConstView topology, reco::PFRecHitDeviceCollection::View pfRecHits, const uint32_t *__restrict__ denseId2pfRecHit, uint32_t *__restrict__ num_pfRecHits) const

Detailed Description

template<typename CAL>
struct ALPAKA_ACCELERATOR_NAMESPACE::PFRecHitProducerKernelTopology< CAL >

Definition at line 133 of file PFRecHitProducerKernel.dev.cc.

Member Function Documentation

operator()()

template<typename CAL >

template<typename TAcc , typename = std::enable_if_t<alpaka::isAccelerator<TAcc>>>

ALPAKA_FN_ACC void ALPAKA_ACCELERATOR_NAMESPACE::PFRecHitProducerKernelTopology< CAL >::operator() ( const TAcc &  acc, const typename CAL::TopologyTypeDevice::ConstView  topology, reco::PFRecHitDeviceCollection::View  pfRecHits, const uint32_t *__restrict__  denseId2pfRecHit, uint32_t *__restrict__  num_pfRecHits  ) const

inline

Definition at line 135 of file PFRecHitProducerKernel.dev.cc.

References mps_fire::i, dqmiodumpmetadata::n, HLT_2024v13_cff::pfRecHits, HLT_2024v13_cff::topology, and cms::alpakatools::uniform_elements().

                                                                              {
      // First thread updates size field pfRecHits SoA
      if (const int32_t thread = alpaka::getIdx<alpaka::Grid, alpaka::Threads>(acc)[0u]; thread == 0)
        pfRecHits.size() = *num_pfRecHits;

      // Assign position information and associate neighbours
      for (int32_t i : cms::alpakatools::uniform_elements(acc, *num_pfRecHits)) {
        const uint32_t denseId = CAL::detId2denseId(pfRecHits.detId(i));

        pfRecHits.x(i) = topology.positionX(denseId);
        pfRecHits.y(i) = topology.positionY(denseId);
        pfRecHits.z(i) = topology.positionZ(denseId);

        for (uint32_t n = 0; n < 8; n++) {
          pfRecHits.neighbours(i)(n) = -1;
          const uint32_t denseId_neighbour = topology.neighbours(denseId)(n);
          if (denseId_neighbour != CAL::kInvalidDenseId) {
            const uint32_t pfRecHit_neighbour = denseId2pfRecHit[denseId_neighbour];
            if (pfRecHit_neighbour != 0xffffffff)
              pfRecHits.neighbours(i)(n) = (int32_t)pfRecHit_neighbour;
          }
        }
      }
    }