Abstract | ||
---|---|---|
This paper describes DIRAC, the LHCb Monte Carlo production system. DIRAC has
a client/server architecture based on: Compute elements distributed among the
collaborating institutes; Databases for production management, bookkeeping (the
metadata catalogue) and software configuration; Monitoring and cataloguing
services for updating and accessing the databases. Locally installed software
agents implemented in Python monitor the local batch queue, interrogate the
production database for any outstanding production requests using the XML-RPC
protocol and initiate the job submission. The agent checks and, if necessary,
installs any required software automatically. After the job has processed the
events, the agent transfers the output data and updates the metadata catalogue.
DIRAC has been successfully installed at 18 collaborating institutes, including
the DataGRID, and has been used in recent Physics Data Challenges. In the near
to medium term future we must use a mixed environment with different types of
grid middleware or no middleware. We describe how this flexibility has been
achieved and how ubiquitously available grid middleware would improve DIRAC. |
Year | Venue | Keywords |
---|---|---|
2003 | Clinical Orthopaedics and Related Research | cluster computing,production management,software agent,monte carlo,client server architecture,middleware,production system |
Field | DocType | Volume |
Middleware,Metadata,Middleware (distributed applications),Software configuration management,Computer science,Software agent,Software,Job queue,Database,Operating system,Python (programming language) | Journal | cs.DC/0306 |
Citations | PageRank | References |
13 | 1.51 | 0 |
Authors | ||
30 |
Name | Order | Citations | PageRank |
---|---|---|---|
N. Brook | 1 | 13 | 1.51 |
A. Bogdanchikov | 2 | 13 | 1.85 |
A. Buckley | 3 | 34 | 7.66 |
Joel Closier | 4 | 20 | 2.93 |
Ulrik Egede | 5 | 44 | 4.99 |
M. Frank | 6 | 13 | 1.51 |
Domenico Galli | 7 | 14 | 1.91 |
Miriam Gandelman | 8 | 13 | 1.51 |
Vincent Garonne | 9 | 101 | 8.68 |
Clara Gaspar | 10 | 13 | 1.51 |
Roberto Graciani Diaz | 11 | 13 | 1.51 |
K. Harrison | 12 | 69 | 7.20 |
Eric Van Herwijnen | 13 | 20 | 2.59 |
A. Khan | 14 | 190 | 22.57 |
Sander Klous | 15 | 34 | 3.68 |
Ivan Korolko | 16 | 13 | 1.51 |
Genady Kuznetsov | 17 | 13 | 1.51 |
Francoise Loverre | 18 | 13 | 1.51 |
Umberto Marconi | 19 | 13 | 1.85 |
Juan P. Palacios | 20 | 14 | 2.25 |
Glen N. Patrick | 21 | 44 | 4.99 |
Andrew Pickford | 22 | 13 | 1.51 |
Sebastien Ponce | 23 | 17 | 2.71 |
Vladimir Romanovski | 24 | 13 | 1.51 |
Juan J. Saborido | 25 | 13 | 1.51 |
Michael Schmelling | 26 | 14 | 2.23 |
A. Soroko | 27 | 72 | 7.80 |
Andreï Tsaregorodtsev | 28 | 72 | 7.03 |
Vincenzo Vagnoni | 29 | 13 | 1.51 |
Andrew Washbrook | 30 | 30 | 3.52 |