9–13 Jul 2018
Sofia, Bulgaria
Europe/Sofia timezone

Experience in using public Cloud for Belle II experiment within HNSciCloud Project.

10 Jul 2018, 16:00
1h
Sofia, Bulgaria

Sofia, Bulgaria

National Culture Palace, Boulevard "Bulgaria", 1463 NDK, Sofia, Bulgaria
Poster Track 7 – Clouds, virtualization and containers Posters

Speaker

Silvio Pardi (INFN)

Description

The current level of flexibility reached by Cloud providers enables Physicists to take advantage of extra resources to extend the distributed computing infrastructure supporting High Energy Physics Experiments. However, the discussion about the optimal usage of such kind of resources is still ongoing. Moreover, because each Cloud provider offers his own interfaces, API set and different service level, the integration in the computing model of an experiment require a specific work for each provider.
In this paper, we summarize the experience matured in the usage of Cloud resources offered by different providers within the European project Helix Nebula Science Cloud for Belle II experiment. The goal of the user-case were to run properly Montecarlo Production jobs on Virtual Machines created dynamically.
To do that, we defined the golden image, based on CENTOS, then we setup the basic environment, the internal and external network and a local DNS services.
For each cloud, we implemented a cache server based on Squid, while the orchestrator has been centralized on a single server located in the INFN-Napoli infrastructure. Finally, we integrated the available resources in the Belle II production framework based on DIRAC, using VCYCLE as Virtual Machine Life Cycle Manager.
After a tuning activity, that required the optimization of several aspects included Image distribution and Network configuration, we were able to run production jobs over the different Cloud with success.

Primary authors

Silvio Pardi (INFN) Davide Michelino (Universita e INFN, Napoli (IT))

Presentation materials