Speaker
Davide Salomoni
(INFN-CNAF)
Description
CNAF is the national computing facility of INFN. It acts as the Italian Tier-1 for the LHC experiments and as a key computing center for several other experiments as well, including astroparticle physics ones such as MAGIC, PAMELA, AMS, Argo, Auger and Virgo. Many of these experiments call for more flexibility in their execution environment than is normally provided by traditional resource centers. For example, it is sometimes desirable to execute jobs on compute nodes especially tailored to the experiment needs. In this presentation we will outline the general characteristics of the Grid/Cloud virtualization system (called WNoDeS) we have developed within INFN and deployed at CNAF, where it has been running in production since November 2009. WNoDeS currently handles about 2000 Virtual Machines out of the CNAF global resource pool, and is heavily used by several astroparticle experiments. We will show, in particular, the setup (and its possible evolutions) used by the Auger experiment to access a condition database through custom Virtual Machines managed by WNoDeS.
Author
Davide Salomoni
(INFN-CNAF)
