Porting legacy codes and applications onto large scale distributed infrastructures, such as the EGEE Grid, can be an involved and time consuming process. The code must be distributed on a large scale parallel architecture, it must be reengineered to make it interoperable with components and services of the core infrastructure, moreover very often new components must be created to meet specific security, presentation and latency requirements. The process of porting legacy applications to grids is usually called "gridification". During dedicated sessions of the Summer School the attendees' own legacy applications were ported onto EGEE. Representatives of the EGEE and SEE-GRID application developer communities assisted participants during these sessions. Three applications were successfully ported during the gridification sessions:

1. application: Time evolution of spherically symmetric nonlinear fields: originates from the Research Institute for Particle and Nuclear Physics, Budapest. The application was ported onto EGEE as a parametric study workflow developed in P-GRADE Portal. The workflow uses Grid Storage Elements and File Catalog to deal with the large amount of input and output data. Introductory slides about the original application can be found here and report slides about the gridified version are available here.

2. application: Simulation of pellet-plasma interaction: originates from the Eötvös Lóránd University, Budapest. The application was ported onto EGEE as a parametric study job with P-GRADE Portal. The grid application uses uses Grid Storage files and file catalogs to deal with large amount of input and output data. Introductory slides about the original application can be found here and report slides about the gridified version are available here.

3. application: HYP3D code which is used in molecular physics (quantum mechanics theory) and originates from University of Rennes, CNRS. The application works with large data files and requires large memory on grid computing machines. It consists of 3 jobs, and its first two jobs were ported to EGEE during the school, using gLite command line tools and Job Description Language. The work will be finished with the help of the EGEE NA4 application porting support group: www.lpds.sztaki.hu/gasuc. Introductory slides about the original application can be found here and report slides about the gridified version are available here.


The related application introductory slides and report slides about the gridified applications are also available on the school agenda page. (day 5 and day 6)