Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 1 Instruments in Grid: the New Instrument Element i (1,2) , G. Taffoni (1,2) , I. Coretti (1) , F. Pas P. Santin (1) , M. Pucillo (1) (1) INAF – Astronomical Observatory of Trieste (2) INAF – Informative Systems Unit
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Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 1 Instruments in Grid: the New Instrument Element C. Vuerli (1,2), G. Taffoni (1,2), I.
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Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 1
Instruments in Grid:the New Instrument Element
C. Vuerli (1,2), G. Taffoni (1,2), I. Coretti (1), F. Pasian (1,2),P. Santin (1), M. Pucillo (1)
(1) INAF – Astronomical Observatory of Trieste(2) INAF – Informative Systems Unit
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 2
The Goal
Gridification of Telescopes and attached astronomical instrumentation to allow remote monitoring and control in Quasi-Real Time Step 1. Remote monitoring of telemetry and
scientific data under acquisition Step 2. Remote control: the astronomer
interacts with night assistant by remotely sending commands and receiving feedback
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 3
The Origin: The GRID.IT Project
GRID.IT: National multi-disciplinary project to validate the Italian Grid infrastructure
INAF participates with 3 applications Access to Astronomical Databases via Grid Porting on Grid the VST Pipelines Monitoring/Control of astronomical
instrumentation
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 4
Astro DBs in Grid: drivers
“Customer whishes”: Transparent access to data sources (DBs); Transparent access to computing resources; Complex workflows;
IVOA standards for data access; GRID computing and storing resources;
Integration of the VObs with Grid technology is of key importance to
provide users with proper computing power
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 5
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 6
Our Grid
It is the Grid middleware that we used in the framework of GRID.IT Project
Set up by INFN (National Institute of Nuclear Physics) to run jobs of the LHC (Large Hadron Collider) experiments (CERN, Geneva)
LCG (LHC Computing Grid) based on Globus 2.4 native computing and data storage resources
LCG now migrated to gLite (WebServices enabled)
No native access to non-computational resourcesG-DSE: a low level integration framework
In Globus and not on Globus
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 7
G-ICS: a low level integration framework on a production grid
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 8
Recycling work on G-DSE to enable G-ICS
Provide a suitable formal definition of a Grid Abstract Computing Machine using Formal specification language
Review the architectural definition of a Data Source Engine (DSE), to build an Instrument Control System
Provide ICS integrated in the existing Grid Resource Layer Framework (G-ICS)
Extend GIS capabilities to understand and handle monitoring and control requests to ICS
Extend GIS capabilities to describe ICS Resources Provide a new Manager for ICS integrated in Globus Extend semantic and provide it to RSL to use G-ICS Etc…
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 9
Query DB specific driver
G-DSE and G-ICS
gatekeeper
JobManger QueryManger
JobProcessQueryProcess
Scheduler p-in
Pbs/LSF
query plug-in
GRAM GIS
RDBMS
MDS
GRIS
Ldapldif
Grid Providers (snmp)
Instrument Control System
ICSManger
ICS plug-in
ICSProcess
ICS specific driver
ICS
RDBMS
Instruments and Sensors in Grid – ICTP Trieste – 23 April 2007 10
LCG-2: DB + ICS enabled middleware
Computing cluster Network resources Data storage
Operating system Local schedulerFile system
User access SecurityData transferInformation schema
Resource Broker Data managementApp monitoring system