Speaker
J. kennedy
(LMU Munich)
Description
This paper presents an overview of the legacy interface provided for
the ATLAS DC2 production system. The term legacy refers to any
non-grid system which may be deployed for use within DC2. The
reasoning behind providing such a service for DC2 is twofold in
nature. Firstly, the legacy interface provides a backup solution
should unforeseen problems occur while developing the grid based
interfaces. Secondly, this system allows DC2 to use resources which have yet to
deploy grid software, thus increasing the available computing power
for the Data Challenge.
The aim of the legacy system is to provide a simple framework which is
easily adaptable to any given computing system. Here the term
computing system refers to the batch system provided at a given site
and also to the structure of the computing and storage systems at that
site. The legacy interface provides the same functionality as the grid
based interfaces and is deployed transparently within the DC2
production system. Following the push-pull model implemented for DC2
the system pulls jobs from a production database and pushes them onto
a gives computing/batch system.
In a world which is becoming increasingly grid orientated this project
allows us to evaluate the role of non-grid solutions in dedicated
production environments. Experiences, both good and bad, gained during
DC2 are presented and the future of such systems is discussed.
Primary authors
DC2 production system team
(ATLAS)
J. kennedy
(LMU Munich)
