Fermilab Computing Division

Computing at Belle II

Full Title: Computing at Belle II
Date & Time: 23 May 2016 at 14:30
Event Location: DIR/ WH1E - Wilson Hall 1st fl East
Event Topic(s): Computing Techniques Seminar
Event Moderator(s):
Event Info: Speaker: Dr. Silvio Pardi, Universita' degli Studi di Napoli - Federico II and INFN Napoli

Modern Physics experiments have to deal with large amount of data, distributed over multiple countries and with large user communities from different organizations.

In this talk I will present the experience of Belle II, an experiment under development at the Japanese laboratory KEK (Tsukuba). Belle II is an international collaboration that aims at develop a large scientific program on the Physics of flavour through a new e+e- collider named SuperKEKB, The Belle II computing system has to handle an amount of beam data eventually corresponding to several tens of PetaByte par year under an operation of the SuperKEKB accelerator with a designed instantaneous luminosity.

With this goal, Belle II employs a distributed computing system, spread over more than 20 countries, also taking advantage of the International Network of Research and of LHCONE as well.

DIRAC is the framework used to manage the interoperability of heterogeneous computing systems such as grids with different middleware, clouds and the local computing clusters. The DIRAC system currently manages more than 30 storage and 50 Clusters.

Several studies are currently ongoing in order to investigate the possible usage of emerging protocols in HEP as webdav/https for data access and cloud interface for resources provision and different data access strategies for analysis as well.

In parallel, the data transfer challenge through the transpacific and transatlantic networks has been started and, since the last two years, the MC mass production campaign to confirm the feasibility and find out the possible bottleneck of our computing system.


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