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/**
Simple test for the pixelTrack::TrackSoA data structure
which inherits from PortableDeviceCollection.
Creates an instance of the class (automatically allocates
memory on device), passes the view of the SoA data to
the CUDA kernels which:
- Fill the SoA with data.
- Verify that the data written is correct.
Then, the SoA data are copied back to Host, where
a temporary host-side view (tmp_view) is created using
the same Layout to access the data on host and print it.
*/
#include <cstdlib>
#include <unistd.h>
#include <alpaka/alpaka.hpp>
#include "DataFormats/TrackSoA/interface/TracksDevice.h"
#include "DataFormats/TrackSoA/interface/TracksHost.h"
#include "DataFormats/TrackSoA/interface/alpaka/TracksSoACollection.h"
#include "FWCore/Utilities/interface/stringize.h"
#include "Geometry/CommonTopologies/interface/SimplePixelTopology.h"
#include "HeterogeneousCore/AlpakaInterface/interface/config.h"
#include "HeterogeneousCore/AlpakaInterface/interface/devices.h"
#include "HeterogeneousCore/AlpakaInterface/interface/memory.h"
#include "HeterogeneousCore/AlpakaInterface/interface/workdivision.h"
#include "TrackSoAHeterogeneous_test.h"
using namespace ALPAKA_ACCELERATOR_NAMESPACE;
using namespace ALPAKA_ACCELERATOR_NAMESPACE::pixelTrack;
int main() {
// Get the list of devices on the current platform
auto const& devices = cms::alpakatools::devices<Platform>();
if (devices.empty()) {
std::cerr << "No devices available for the " EDM_STRINGIZE(ALPAKA_ACCELERATOR_NAMESPACE) " backend, "
"the test will be skipped.\n";
exit(EXIT_FAILURE);
}
// Run the test on each device
for (const auto& device : devices) {
Queue queue(device);
// Inner scope to deallocate memory before destroying the stream
{
// Instantiate tracks on device. PortableDeviceCollection allocates
// SoA on device automatically.
TracksSoACollection<pixelTopology::Phase1> tracks_d(queue);
testTrackSoA::runKernels<pixelTopology::Phase1>(tracks_d.view(), queue);
// Instantate tracks on host. This is where the data will be
// copied to from device.
TracksHost<pixelTopology::Phase1> tracks_h(queue);
std::cout << tracks_h.view().metadata().size() << std::endl;
alpaka::memcpy(queue, tracks_h.buffer(), tracks_d.const_buffer());
alpaka::wait(queue);
// Print results
std::cout << "pt"
<< "\t"
<< "eta"
<< "\t"
<< "chi2"
<< "\t"
<< "quality"
<< "\t"
<< "nLayers"
<< "\t"
<< "hitIndices off" << std::endl;
for (int i = 0; i < 10; ++i) {
std::cout << tracks_h.view()[i].pt() << "\t" << tracks_h.view()[i].eta() << "\t" << tracks_h.view()[i].chi2()
<< "\t" << (int)tracks_h.view()[i].quality() << "\t" << (int)tracks_h.view()[i].nLayers() << "\t"
<< tracks_h.view().hitIndices().off[i] << std::endl;
}
}
}
return EXIT_SUCCESS;
}
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