22 July 2014 A prototype for the real-time analysis of the Cherenkov Telescope Array
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The Cherenkov Telescope Array (CTA) observatory will be one of the biggest ground-based very-high-energy (VHE) γ- ray observatory. CTA will achieve a factor of 10 improvement in sensitivity from some tens of GeV to beyond 100 TeV with respect to existing telescopes. The CTA observatory will be capable of issuing alerts on variable and transient sources to maximize the scientific return. To capture these phenomena during their evolution and for effective communication to the astrophysical community, speed is crucial. This requires a system with a reliable automated trigger that can issue alerts immediately upon detection of γ-ray flares. This will be accomplished by means of a Real-Time Analysis (RTA) pipeline, a key system of the CTA observatory. The latency and sensitivity requirements of the alarm system impose a challenge because of the anticipated large data rate, between 0.5 and 8 GB/s. As a consequence, substantial efforts toward the optimization of highthroughput computing service are envisioned. For these reasons our working group has started the development of a prototype of the Real-Time Analysis pipeline. The main goals of this prototype are to test: (i) a set of frameworks and design patterns useful for the inter-process communication between software processes running on memory; (ii) the sustainability of the foreseen CTA data rate in terms of data throughput with different hardware (e.g. accelerators) and software configurations, (iii) the reuse of nonreal- time algorithms or how much we need to simplify algorithms to be compliant with CTA requirements, (iv) interface issues between the different CTA systems. In this work we focus on goals (i) and (ii).
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Andrea Bulgarelli, Andrea Bulgarelli, Valentina Fioretti, Valentina Fioretti, Andrea Zoli, Andrea Zoli, Alessio Aboudan, Alessio Aboudan, Juan José Rodríguez-Vázquez, Juan José Rodríguez-Vázquez, Gernot Maier, Gernot Maier, Etienne Lyard, Etienne Lyard, Denis Bastieri, Denis Bastieri, Saverio Lombardi, Saverio Lombardi, Gino Tosti, Gino Tosti, Adriano De Rosa, Adriano De Rosa, Sonia Bergamaschi, Sonia Bergamaschi, Matteo Interlandi, Matteo Interlandi, Domenico Beneventano, Domenico Beneventano, Giovanni Lamanna, Giovanni Lamanna, Jean Jacquemier, Jean Jacquemier, Karl Kosack, Karl Kosack, Lucio Angelo Antonelli, Lucio Angelo Antonelli, Catherine Boisson, Catherine Boisson, Jerzy Burkowski, Jerzy Burkowski, Sara Buson, Sara Buson, Alessandro Carosi, Alessandro Carosi, Vito Conforti, Vito Conforti, Jose Luis Contreras, Jose Luis Contreras, Giovanni De Cesare, Giovanni De Cesare, Raquel de los Reyes, Raquel de los Reyes, Jon Dumm, Jon Dumm, Phil Evans, Phil Evans, Lucy Fortson, Lucy Fortson, Matthias Fuessling, Matthias Fuessling, Ricardo Graciani, Ricardo Graciani, Fulvio Gianotti, Fulvio Gianotti, Paola Grandi, Paola Grandi, Jim Hinton, Jim Hinton, Brian Humensky, Brian Humensky, Jürgen Knödlseder, Jürgen Knödlseder, Giuseppe Malaguti, Giuseppe Malaguti, Martino Marisaldi, Martino Marisaldi, Nadine Neyroud, Nadine Neyroud, Luciano Nicastro, Luciano Nicastro, Stefan Ohm, Stefan Ohm, Julian Osborne, Julian Osborne, Simon Rosen, Simon Rosen, Alessandro Tacchini, Alessandro Tacchini, Eleonora Torresi, Eleonora Torresi, Vincenzo Testa, Vincenzo Testa, Massimo Trifoglio, Massimo Trifoglio, Amanda Weinstein, Amanda Weinstein, "A prototype for the real-time analysis of the Cherenkov Telescope Array", Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91452X (22 July 2014); doi: 10.1117/12.2054744; https://doi.org/10.1117/12.2054744


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