Daily Arxiv

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Real-Time Analysis of Unstructured Data with Machine Learning on Heterogeneous Architectures

Created by
  • Haebom

Author

Fotis I. Giasemis

Outline

This paper presents a graph neural network-based pipeline for reconstructing charged particle trajectories used in the LHCb experiment at CERN. High precision in particle physics requires massive data processing, and real-time data filtering (triggering) is crucial for achieving this. This study presents a method for efficiently deploying machine learning models, specifically graph neural networks, in a high-frequency 40 MHz data processing environment to maximize throughput and minimize energy consumption. The pipeline is implemented on GPU and FPGA architectures, and its performance and power consumption are compared and analyzed against existing algorithms.

Takeaways, Limitations

Takeaways:
Demonstrating the utility of graph neural networks in real-time data processing in high-energy physics experiments such as the LHCb experiment.
Suggesting the possibility of improving the performance and energy efficiency of real-time data processing by utilizing high-performance computing based on GPUs and FPGAs.
We demonstrate improved performance through comparative analysis of machine learning-based algorithms compared to existing classical algorithms.
Limitations:
Results are limited to a specific experiment (LHCb), and generalizability to other experiments or datasets requires further study.
Detailed descriptions of the detailed performance enhancement and optimization process of FPGA implementation may be lacking.
Lack of detailed description of the specific structure and hyperparameter selection of graph neural networks may lead to poor reproducibility.
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