Speaker
S. Burke
(Rutherford Appleton Laboratory)
Description
The European DataGrid (EDG) project ran from 2001 to 2004, with the aim of producing
middleware which could form the basis of a production Grid, and of running a testbed
to demonstrate the middleware. HEP experiments (initially the four LHC experiments
and subsequently BaBar and D0) were involved from the start in specifying
requirements, and subsequently in evaluating the performance of the middleware, both
with generic tests and through increasingly complex data challenges. A lot of
experience has therefore been gained which may be valuable to future Grid projects,
in particular LCG and EGEE which are using a substantial amount of the middleware
developed in EDG. We report our experiences with job submission, data management and
mass storage, information and monitoring systems, Virtual Organisation management
and Grid operations, and compare them with some typical Use Cases defined in the
context of LCG. We also describe some of the main lessons learnt from the project,
in particular in relation to configuration, fault-tolerance, interoperability and
scalability, as well as the software development process itself, and point out some
areas where further work is needed. We also make some comments on how these issues
are being addressed in LCG and EGEE.
Primary authors
A. De Salvo
(INFN Rome 1)
A. Fanfani
(INFN Bologna)
A. Tsaregorodtsev
(Marseille)
C. Grandi
(INFN-Bologna)
D. Boutigny
(LAPP Annecy)
D. Colling
(Imperial)
D. Groep
(NIKHEF)
E. Luppi
(INFN Sezione di Ferrara)
F. Brochu
(Cambridge)
F. Carminati
(CERN)
F. Harris
(CERN/Oxford)
G. Negri
(INFN Milan)
I. Augustin
(CERN)
I. Stokes-Rees
(Oxford)
J J. Blaising
(LAPP Annecy)
J. Closier
(CERN)
K. Bos
(NIKHEF)
L. Perini
(INFN Milan)
M. Reale
(INFN Rome 1)
O. Maroney
(Bristol)
O. Smirnova
(Lund)
P. Capiluppi
(INFN Bologna)
P. Cerello
(INFN Turin)
R. Barbera
(INFN Catania)
S. Bagnasco
(INFN Turin)
S. Burke
(Rutherford Appleton Laboratory)
S. Resconi
(INFN Milan)
V. GARONNE
(CNRS-IN2P3-CPPM, MARSEILLE)
W. van Leeuwen
(NIKHEF)
