Speaker
M. Sanchez-Garcia
(UNIVERSITY OF SANTIAGO DE COMPOSTELA)
Description
The LHCb Data Challenge 04 includes the simulation of over 200 M
simulated events using distributed computing resources on N sites and
extending along 3 months. To achieve this goal a dedicated Production
grid (DIRAC) has been deployed. We will present the Job
Monitoring and Accounting services developed to follow the status of
the production along its way and to evaluate the results at the end of
the Data Challenge.
The end user connects with a web browser to
WEB-SERVER applications showing dynamic reports for a whole set of
possible queries. These applications in turn interrogate the Job
Monitoring
Service of the DIRAC Workload Management system and
Accounting Database service by means of dedicated XML-RPC interfaces,
querying for the information requested by the user. The reports
provide
an uniform view of the usage of the computing resources available. All
the system components are implemented as a set of cooperating python
classes following the design choice of LHCb. The different services
are distributed
over a number of independent machines. This allows to achieve the
scalability level of multiple thousands of concurrent jobs monitored
by the system
Primary authors
J. Saborido-Silva
(University of Santiago de Compostela)
M. Sanchez-Garcia
(UNIVERSITY OF SANTIAGO DE COMPOSTELA)
R. Graciani-Diaz
(University of Barcelona)
R. Vizcaya Carrillo
(University of Barcelona)
V. Garonne
(IN2P3)
