Speaker
Mr
Davide Rebatto
(INFN - MILANO)
Description
In current, widely deployed management schemes, intensive computing farms are locally
managed by batch systems (e.g. Platform LSF, PBS/Torque, BQS, etc.). When approached
from the outside, at the global (or 'grid') level, these local resource managers
(LRMS) are seen as services providing at least a basic set of job operations, namely
submission, status retrieval, cancellation and security credential renewal. The
Batch-system Local ASCII Helper Protocol (BLAHP) was designed to offer a simple
abstraction layer over the different LRMS, providing uniform access to the underlying
computing resources. In order to preserve the simplicity and portability of the
scheme and the robustness of the implementation, the functionality in the
abstraction had to be carefully limited. In this paper we briefly describe the BLAH
protocol and daemon design, focusing on the design and deployment considerations
leading to the chosen abstraction. The daemon, originally developed for the EGEE
gLite Condor-based Computing Element, is going to be used by Condor also outside the
gLite framework. It is also a component of CREAM, the Web Services oriented
Computing Element for gLite.
Primary authors
Mr
Davide Rebatto
(INFN - MILANO)
Ms
Elisabetta Molinari
(INFN - MILANO)
Mr
Enzo Martelli
(INFN - MILANO)
Mr
Francesco Prelz
(INFN - MILANO)
Mr
Giuseppe Fiorentino
(INFN - MILANO)
Mr
Massimo Mezzadri
(INFN - MILANO)
Co-authors
A. Cavallini
(DATAMAT)
A. Guarise
(INFN - TORINO)
A. Krenek
(CESNET)
A. Maraschini
(DATAMAT)
A. Parrini
(DATAMAT)
A. Terracina
(DATAMAT)
A. Werbrouck
(INFN - TORINO)
Alessio Gianelle
(INFN Padova)
Alvise Dorigo
(INFN Padova)
Antonino Stefano Borgia
(INFN Padova)
C. Scarcella
(DATAMAT)
D. Kouril
(CESNET)
E. Ronchieri
(INFN - CNAF)
F. Dvorak
(CESNET)
F. Giacomini
(INFN - CNAF)
F. Pacini
(DATAMAT)
G. Avellino
(DATAMAT)
G. Patania
(INFN - TORINO)
J. Pospisil
(CESNET)
J. Sitera
(CESNET)
J. Skrabal
(CESNET)
L. Matyska
(CESNET)
Luigi Zangrando
(INFN Padova)
M. Checchi
(INFN - CNAF)
M. Mulac
(CESNET)
M. Pappalardo
(INFN - CATANIA)
M. Ruda
(CESNET)
M. Sottilaro
(DATAMAT)
M. Vocu
(CESNET)
Massimo sgaravatto
(Istituto Nazionale di Fisica Nucleare (INFN))
Matteo Mordacchini
(INFN Padova)
Moreno Marzolla
(INFN Padova)
Paolo Andreetto
(INFN Padova)
R. Lops
(INFN - CNAF)
R. Piro
(INFN - TORINO)
S. Andreozzi
(INFN - CNAF)
S. Beco
(DATAMAT)
S. Monforte
(INFN - CATANIA)
T. Ferrari
(INFN - CNAF)
V. Ciaschini
(INFN - CNAF)
V. Venturi
(INFN - CNAF)
Z. Salvet
(CESNET)
