Wodzimierz Funika, Institute of Computer Science AGH

Recent Advances in Building Interactive Grid Environment

The objective of the EU IST Interactive European Grid (int.eu.grid)
project  is to deploy an advanced Grid empowered infrastructure in
the European Research Area. The infrastructure is specifically oriented
to support the execution of interactive demanding applications, ensuring
interoperability with existing large e-Infrastructures like EGEE by
providing basic common middleware services; the project exploits the
expertise generated by the EU IST CrossGrid project to provide researchers
with an interactive and simultaneous access to large distributed
facilities.

CYFRONET, Institute of Computer Science AGH, and IFJ PAN are focusing on
using the interactive grid environment to support processing of data
coming from the Large Hadron Collider (LHC). The amount of data generated
by the detector requires an implementation of a multi-stage filtering
system (HEP application) to select only those interactions which may be
interesting for physics phenomena studies. In order to solve the issue
of filtering, we are developing tools to support smart distribution of
tasks to remote sites taking into account both the current status of network
and computation nodes.

We discuss the architecture of the grid solution for the HEP application:
middleware elements supporting the functioning of the application,
HEP-specific Virtual Organization, and monitoring facilities used for making
decisions by the dispatcher task.