10–14 Oct 2016
San Francisco Marriott Marquis
America/Los_Angeles timezone

AGIS: Integration of new technologies used in ATLAS Distributed Computing

11 Oct 2016, 15:30
1h 15m
San Francisco Marriott Marquis

San Francisco Marriott Marquis

Poster Track 7: Middleware, Monitoring and Accounting Posters A / Break

Description

The variety of the ATLAS Distributed Computing infrastructure requires a central information
system to define the topology of computing resources and to store the different parameters and
configuration data which are needed by the various ATLAS software components.

The ATLAS Grid Information System (AGIS) is the system designed to integrate configuration
and status information about resources, services and topology of the computing infrastructure
used by ATLAS Distributed Computing applications and services. Being an intermediate
middleware system between clients and external information sources (like central BDII, GOCDB,
MyOSG), AGIS defines the relations between experiment specific used resources and physical
distributed computing capabilities.

Being in production during LHC Run1 AGIS became the central information system for
Distributed Computing in ATLAS and it is continuously evolving to fulfill new user requests,
enable enhanced operations and follow the extension of ATLAS Computing model.
ATLAS Computing model and data structures used by Distributed Computing applications and
services are continuously evolving and trend to fit newer requirements from ADC community. In
this note, we describe the evolution and the recent developments of AGIS functionalities, related
to integration of new technologies recently become widely used in ATLAS Computing like flexible
computing utilization of opportunistic Cloud and HPC resources, ObjectStore services integration
for Distributed Data Management (Rucio) and ATLAS workload management (PanDA) systems,
unified storage protocols declaration required for PandDA Pilot site movers and others.

The improvements of information model and general updates are also shown, in particular we
explain how other Collaborations outside ATLAS could benefit the system as a computing
resources information catalogue. AGIS is evolving toward a common information system not
coupled to a specific experiment.

Primary Keyword (Mandatory) Computing middleware
Secondary Keyword (Optional) Accounting and information
Tertiary Keyword (Optional) Databases

Primary author

Alexey Anisenkov (Budker Institute of Nuclear Physics (RU))

Presentation materials