4th EGEE User Forum/OGF 25 and OGF Europe's 2nd International Event

Session

High Energy Physics

4 Mar 2009, 14:00

Le Ciminiere, Catania, Sicily, Italy

Description

The High-Energy Physics (HEP) community is one of the pilot application domains in EGEE, and is the largest user of its grid infrastructure. By their nature HEP applications are very demanding and due to this fact these applications serve as a powerful role in understanding and improving EGEE delivered services. The HEP experiments also produce high-level middleware components than often become valuable prototypes for the overall grid community. The expertise developed by HEP users is open to the other EGEE grid users. This kind of applications are an important driving force within the EGEE project and promotes progress across many scientific disciplines.
The four Large Hadron Collider (LHC) experiments (ALICE, ATLAS, CMS and LHCb) at CERN will begin to record proton-proton events this year. The EGEE infrastructure will play a key role in the data processing and analysis of the 4 LHC experiment.

The EGEE User Forums have been always a big opportunity to share the experiences between Grid users and also to trigger important collaboration between different clusters. The first session on Wednesday morning is devoted to the largest LHC experiments: ATLAS and CMS. Different talks will expose the status of the analysis frameworks, the sites and the monitoring tools of these experiments. Due to the importance of 2009 for the LHC, these talks will expose the current status of the largest experiments and their sites before the real data taking. This will be an ideal opportunity to share experiences with other communities which can see the results of the preparation phase of the LHC using the EGEE infrastructure. The second session will continue with another CMS contribution dedicated to the data analysis framework of the experiment. This second session will also include some fundamental examples of how the HEP cluster has contributed to other research fields with the toolkits created originally for this community but also extended to other applications within the EGEE framework.

110. Porting AITALC product through a master/worker scheme

Dr Alejandro Lorca (Universidad Complutense de Madrid)

04/03/2009, 14:00

Experiences from application porting and deployment

Oral

A program calculating Bhabha scattering at High Energy Physics is considered for being ported into the EGEE infrastructure. The program, which is a result of the AITALC project, computes integrated cross sections and its first order quantum corrections for the electroweak Standard Model. The job submission, execution and monitoring are implemented through the GRIDWAY metascheduler.

166. CRAB: the CMS distributed analysis tool on EGEE/WLCG infrastructure

Dr Federica Fanzago (CNAF Bologna and CERN)

04/03/2009, 14:20

Grid Services exploiting and extending gLite middleware

Oral

The CERN's CMS experiment will produce 2.3 PetaBytes of data each year. CMS has defined a computing model based on the Grid infrastructure where the data will have to be distributed. CRAB is the tool designed and developed by CMS that facilitates the access and computation over the distributed data. It allows to distribute and parallelize the CMS data analysis processes over different Grid...

127. Lattice QCD 2008: large­-scale usage of the Grid for theoretical physics

Mr Jakub MOSCICKI (CERN)

04/03/2009, 14:40

Scientific results obtained using grid technology

Oral

During the summer months of 2008 a large scale Lattice Quantum Chromodynamics (LQCD) simulation to study the properties of quark-gluon plasma was performed. The extent of LQCD analysis was equivalent to approximately 300 CPU years completed within 3 months (speedup ~1000) using the EGEE Grid resources. The LQCD analysis was implemented using Ganga (http://cern.ch/ganga) as the Grid job...