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Interfacing detectors and collecting data for large-scale experiments in high energy physics using COTS technology / Jörn Schumacher, Author ; Prof. Dr. Christian Plessl, Academic Supervisor. Paderborn, 2017
Inhalt
Contents
Introduction
Motivation
High Energy Physics and Accelerator Experiments
Trigger and Data Acquisition Systems
Contribution
Outline
From Custom to COTS Components: Evolution of the ATLAS Data-Acquisition System
LHC Upgrade Program
LHC Run 1 (2009 – 2013)
Run 1 Performance Data
LHC Run 2 (2015 – 2018)
LHC Run 3 and beyond
Centralized Data Distribution with FELIX
Related Work
Architecture of a COTS-based Read-Out Switch
Overview
Detector Connectivity
The Detector Link Interface Card
The FELIX Software Stack
Related Work
Efficient Decoding of Detector Link Data Streams
Overview
The PCIe Packet Format
The Packet Decoding Algorithm
Profiling
Optimizations
Benchmark Results
Memory Bandwidth Analysis
Conclusion
Related Work
Fast Networking for DAQ Systems
Overview
Networking in FELIX
The NetIO Message Service
User-level sockets
Low-Level Sockets
The POSIX Back-end
The FI/Verbs Back-end
The Intel OmniPath Back-end
Benchmarks and Tests with NetIO
Related Work
System Evaluation of a COTS-based Read-Out
Methodology
Case Study: The New Small Wheel
Case Study: Full Mode
Scalability
CPU Scaling
Conclusion
Summary
COTS-based Readout for HEP experiments
FELIX
Outlook
Final Words
Publications of the Author
Bibliography
List of Figures
List of Tables
Acronyms
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