Speaker
G. Zito
(INFN BARI)
Description
The complexity of the CMS Tracker (more than 50 million channels to monitor) now in
construction in ten laboratories worldwide with hundreds of interested people , will
require new tools for monitoring both the hardware and the software. In our approach
we use both visualization tools and Grid services to make this monitoring possible.
The use of visualization enables us to represent in a single computer screen all
those million channels at once. The Grid will make it possible to get enough data
and computing power in order to check every channel and also to reach the experts
everywhere in the world allowing the early discovery of problems .
We report here on a first prototype developed using the Grid environment already
available now in CMS i.e. LCG2. This prototype consists on a Java client which
implements the GUI for Tracker Visualization and a few data servers connected to the
tracker construction database , to Grid catalogs of event datasets or directly to
test beam setups data acquisition . All the communication between client and servers
is done using data encoded in xml and standard Internet protocols.
We will report on the experience acquired developing this prototype and on possible
future developments in the framework of an interactive Grid and a virtual counting
room allowing complete detector control from everywhere in the world.
