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The HL-LHC and the corresponding detector upgrades for the CMS experiment will present extreme challenges for the full simulation. In particular, increased precision in models of physics processes may be required for accurate reproduction…

Computational Physics · Physics 2020-11-19 Kevin Pedro

The future of computing systems is inevitably embracing a disaggregated and composable pattern: from clusters of computers to pools of resources that can be dynamically combined together and tailored around applications requirements.…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-07-02 Christian Pinto , Dong Li , Thaleia Dimitra Doudali , Christina Giannoula , Jie Ren

The transition to the High-Luminosity Large Hadron Collider (HL-LHC) presents a computational challenge where particle reconstruction complexity may outpace classical computing resources. While quantum computing offers potential speedups,…

Looking towards first LHC collisions, the ATLAS detector is being commissioned using the physics data available: cosmic rays and data taken during the LHC single beam operations at 450 GeV. During the installation of the ATLAS detector in…

Instrumentation and Detectors · Physics 2008-10-21 Maria Moreno Llacer

With the high bunch-crossing and interaction rates and potentially large event sizes the experiments at the LHC challenge data acquisition and trigger systems. Within the ATLAS experiment, a multi-level trigger system based on hardware and…

High Energy Physics - Experiment · Physics 2017-12-22 Thomas Schoerner-Sadenius

After the successful LHC operation at the center-of-mass energies of 7 and 8 TeV in 2010-2012, plans are actively advancing for a series of upgrades of the accelerator, culminating roughly ten years from now in the high-luminosity LHC…

Instrumentation and Detectors · Physics 2014-08-29 Walter Hopkins

The ATLAS experiment at the Large Hadron Collider has implemented a new system for recording information on detector status and data quality, and for transmitting this information to users performing physics analysis. This system revolves…

Instrumentation and Detectors · Physics 2012-05-15 T. Golling , H. S. Hayward , P. U. E. Onyisi , H. J. Stelzer , P. Waller

The Large Hadron Collider (LHC) at the European Organisation for Nuclear Research (CERN) will be upgraded to further increase the instantaneous rate of particle collisions (luminosity) and become the High Luminosity LHC. This increase in…

The development of an LHC physics analysis involves numerous investigations that require the repeated processing of terabytes of data. Thus, a rapid completion of each of these analysis cycles is central to mastering the science project. We…

Data Analysis, Statistics and Probability · Physics 2022-07-19 Niclas Eich , Martin Erdmann , Peter Fackeldey , Benjamin Fischer , Dennis Noll , Yannik Rath

ALICE is the CERN LHC experiment optimised for the study of the strongly interacting matter produced in heavy-ion collisions and devoted to the characterisation of the quark-gluon plasma. To achieve the physics program for LHC Run 3, a…

Instrumentation and Detectors · Physics 2020-12-04 Domenico Colella

The computing systems used by LHC experiments has historically consisted of the federation of hundreds to thousands of distributed resources, ranging from small to mid-size resource. In spite of the impressive scale of the existing…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-10-31 Danila Oleynik , Sergey Panitkin , Matteo Turilli , Alessio Angius , Kaushik De , Alexei Klimentov , Sarp H. Oral , Jack C. Wells , Shantenu Jha

We present an ongoing R&D activity for machine-learning-assisted navigation through detectors to be used for track reconstruction. We investigate different approaches of training neural networks for surface prediction and compare their…

Instrumentation and Detectors · Physics 2021-09-08 Benjamin Huth , Andreas Salzburger , Tilo Wettig

The High Level Trigger (HLT) of the ALICE experiment requires massive parallel computing. One of the main tasks of the HLT system is two-dimensional cluster finding on raw data of the Time Projection Chamber (TPC), which is the main data…

Instrumentation and Detectors · Physics 2007-05-23 G. Grastveit , H. Helstrup , V. Lindenstruth , C. Loizides , D. Roehrich , B. Skaali , T. Steinbeck , R. Stock , H. Tilsner , K. Ullaland , A. Vestbo , T. Vik

The Large Hadron Collider (LHC) at the European Organisation for Nuclear Research (CERN) will be upgraded to further increase the instantaneous rate of particle collisions (luminosity) and become the High Luminosity LHC (HL-LHC). This…

Motion planning against sensor data is often a critical bottleneck in real-time robot control. For sampling-based motion planners, which are effective for high-dimensional systems such as manipulators, the most time-intensive component is…

Robotics · Computer Science 2024-06-06 Clayton W. Ramsey , Zachary Kingston , Wil Thomason , Lydia E. Kavraki

Industrial domains such as automotive, robotics, and aerospace are rapidly evolving to satisfy the increasing demand for machine-learning-driven Autonomy, Connectivity, Electrification, and Shared mobility (ACES). This paradigm shift…

Hardware Architecture · Computer Science 2026-02-11 Thomas Benz

Large language models (LLMs) exhibit memory-intensive behavior during decoding, making it a key bottleneck in LLM inference. To accelerate decoding execution, hybrid-bonding-based 3D-DRAM has been adopted in LLM accelerators. While this…

Hardware Architecture · Computer Science 2026-04-10 Cong Li , Chenhao Xue , Yi Ren , Xiping Dong , Yu Cheng , Yinbo Hu , Fujun Bai , Yixin Guo , Xiping Jiang , Qiang Wu , Zhi Yang , Zhe Cheng , Yuan Xie , Guangyu Sun

High-energy physics is facing increasingly computational challenges in real-time event reconstruction for the near-future high-luminosity era. Using the LHCb vertex detector as a use-case, we explore a new algorithm for particle track…

High-energy physics experiments rely on reconstruction of the trajectories of particles produced at the interaction point. This is a challenging task, especially in the high track multiplicity environment generated by p-p collisions at the…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Maxim Borisyak , Andrey Ustyuzhanin , Denis Derkach , Mikhail Belous

Computation of correlation functions is a key operation in Lattice quantum chromodynamics (LQCD) simulations to extract nuclear physics observables. These functions involve many binary batch tensor contractions, each tensor possibly…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-05 Oguz Selvitopi , Emin Ozturk , Jie Chen , Ponnuswamy Sadayappan , Robert G. Edwards , Aydın Buluç