Speakers
Description
Keywords
job management, applications, interoperability, fusion, non-linear calculations, Ganga, DIANE
Justification for delivering demo and technical requirements (ONLY for demonstrations)
We will show how two applications are gridified and how a user can immediately profit from the Grid using Ganga and DIANE. The demo shows the ease of the transition from local computing environment to the EGEE Grid and also from the standard Grid submission model to the dynamic workload-balancing pilot-based system. This is best explained using concrete application examples running in real-time. The demo will feature the HEP (Geant4) and Fusion (ISDEP) applications running side-by-side.
Impact
The ISDEP application is able to estimate, without the usual limitations of the standard calculations, the kinetic transport in TJ-II, ITER and LHD, and thus to obtain results of great scientific interest.
Efficient enabling of applications is critical for communities joining the Grid. We believe that the successful demonstration of the ISDEP application using the tools and methodology developed in HEP will have a deep impact on the gridification of other applications in the Fusion community.
Detailed analysis
Tools and methodology originally developed for High Energy Physics have been successfully used in a number of activities beyond the original scope (such as Avian Flu Drug Search, Geant4 regression testing, medical simulations, computing support for ITU RRC 06 and 2007/2008 Lattice QCD production). Ganga (a job management interface) and DIANE (a lightweight scheduler and optimized based on the pilot-job framework) allow to achieve remarkable results such as 3 fold improvement of the efficiency of job execution, or completion of over 200K short jobs with 100% success rate within 1.5 hours.
The Fusion community is adopting the Ganga and DIANE tools to solve the complex Plasma Physics. Particularly, the ISDEP code is specially suited for running in the Grid it: consists on a large number of parallel independent processes, carried out inside an iterative scheme which allows for non-linear calculations.
Conclusions and Future Work
Efficient enabling of new applications and user communities on the Grid plays a central role in the current phase of the EGEE project. Ganga and DIANE allow for an easy and efficient management of a variety of applications on the Grid. With this works we are looking forward to bringing the "Grid added-value" to the Fusion community.
URL for further information
http://grid.bifi.unizar.es/egee/fusion-vo, http://cern.ch/diane, http://cern.ch/ganga
