Files
aare/python/src/bind_ClusterFileSink.hpp
T
Erik Fröjdh eddb919328
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FastPedestal + optimizations in the cluster finder (#341)
Optimized pedestal tracking with FastPedestal and performance improvements to the cluster finder. 
- ~2x faster hitting 14k FPS on benchmark dataset on 16 core threadripper pro


**Changes**
- No bounds check on interior of frame. (only within half of a cluster)
(~15% improvement)
- Cache threshold (std*n_rms) Biggest improvement comes from not
computing std for each access
- Cache pedestal subtracted frame
- Switched to FastPedestal which assumes we reached steady state

**Things tried but rejected:**
- Always store cluster values, commit on val==max (~15% drop in frame
rate)

**Options**
- using 16 bit clusters and 16 bit pedestal. (slows down the single
threaded case but allow us to reach 12k with multi threading)

**Other notes on performance**
- Passing in memory frames from python and doing nothing: 0.8us/frame
- Passing + pedestal subtraction: 28us/frame
- Passing + pedestal + cluster finding (no store): 652us/frame
- Passing + pedestal + cluster finding: 886 us/frame
2026-09-01 18:41:12 +02:00

39 lines
1.3 KiB
C++

// SPDX-License-Identifier: MPL-2.0
#include "aare/ClusterCollector.hpp"
#include "aare/ClusterFileSink.hpp"
#include "aare/ClusterFinder.hpp"
#include "aare/ClusterFinderMT.hpp"
#include "aare/ClusterVector.hpp"
#include "aare/NDView.hpp"
#include "aare/Pedestal.hpp"
#include "np_helper.hpp"
#include <cstdint>
#include <filesystem>
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
#include <pybind11/stl_bind.h>
namespace py = pybind11;
using namespace aare;
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
template <typename T, uint8_t ClusterSizeX, uint8_t ClusterSizeY,
typename CoordType = uint16_t>
void define_ClusterFileSink(py::module &m, const std::string &typestr) {
auto class_name = fmt::format("ClusterFileSink_{}", typestr);
using ClusterType = Cluster<T, ClusterSizeX, ClusterSizeY, CoordType>;
// TODO! adapt to set pedestal type (needs templating of ClusterFileSink)
// or maybe access through base class?
py::class_<ClusterFileSink<ClusterType>>(m, class_name.c_str())
.def(py::init<ClusterFinderMT<ClusterType, uint16_t, double> *,
const std::filesystem::path &>())
.def("stop", &ClusterFileSink<ClusterType>::stop);
}
#pragma GCC diagnostic pop