Thursday, July 25, 2013

1307.6489 (A. Bulgarelli et al.)

The Real-Time Analysis of the Cherenkov Telescope Array Observatory    [PDF]

A. Bulgarelli, V. Fioretti, J. L. Contreras, A. Lorca, A. Aboudan, J. J. Rodríguez-Vázquez, S. Lombardi, G. Maier, L. A. Antonelli, D. Bastieri, C. Boisson, J. Borkowski, S. Buson, A. Carosi, V. Conforti, A. Djannati-Ataï, J. Dumm, P. Evans, L. Fortson, F. Gianotti, R. Graciani, P. Grandi, J. Hinton, B. Humensky, K. Kosack, G. Lamanna, G. Malaguti, M. Marisaldi, L. Nicastro, S. Ohm, J. Osborne, S. Rosen, M. Trifoglio, G. Tosti for the CTA Consortium
The Cherenkov Telescope Array (CTA) Observatory must be capable of issuing fast alerts on variable and transient sources to maximize the scientific return. 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 large foreseen data flow rate, between 0.5 and 8 GB/s. As a consequence, substantial efforts toward the optimization of this high-throughput computing service are envisaged, with the additional constraint that the RTA should be performed on-site (as part of the auxiliary infrastructure of the telescopes). In this work, the functional design of the RTA pipeline is presented.
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