SpaceGRID and EGSO Satu Keski-Jaskari Maria Vappula Parallal Computing – Seminar 01.12.2003.
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Presentation on theme: "SpaceGRID and EGSO Satu Keski-Jaskari Maria Vappula Parallal Computing – Seminar 01.12.2003."— Presentation transcript:
SpaceGRID and EGSO Satu Keski-Jaskari Maria Vappula Parallal Computing – Seminar 01.12.2003
Index SpaceGRID –overview –project –infrastructure –involved domains –in the future EGSO –overviwe –workpackages –system architecture roles –data model
SpaceGRID ESA funded project (general study programme) The project aims: –How GRID technology can serve requirements across a large variety of space disciplines –Sketch the design of an ESA-wide GRID infrastructure –Foster collaboration and enable shared efforts across space applications. –Proof of concept through prototyping –Keep Europe up with GRID efforts!
SpaceGRID - timetable Kick off: September 26, 2001 User Requirements and applications to be prototyped selected: April 4, 2002 Infrastructure analysed and specified: July 4, 2003 ESA Grid Infrastructure set-up for demonstrations: March, 2003 Prototypes evaluated/accepted: March 20 – June 20, 2003 Final Workshop: May 21-22, 2003 SpaceGRID study final report: 19.09.2003
SpaceGRID - Goals Assess how GRID technology can serve requirements across a large variety of space disciplines Foster collaboration and enable shared efforts across space applications Sketch the design of an ESA-wide (and common) infrastructure Proof of concept through prototyping Involve both industry and research centres Keep Europe up with GRID efforts!!
SpaceGRID Project SpaceGRID Project RequirementsESA AnalysisPrototyping Future Analysis Earth Observ. Space Research Solar System R. Mechanical Eng. Earth Observ. Space Research Solar System R. Earth Observ. Space Research Solar System R. Mechanical Eng. Earth Observ. Project Management
Study Teams (involved domains of SpaceGRID) Study Team Spacecraft Plasma Interactions QinetiQ Earth Observation DATAMAT Radiation Transport QinetiQ Space Weather CS-SI Mechanical Engineering Alcatel Space Solar System Research RAL
EGSO (European Grid of Solar Observations) EGSO is a Grid test-bed EGSO is funded by the Europea Commission The role of the EGSO is to provide the infrastructure, based on concepts such as grid sharing of resources and peer to peer networking
EGSO - Timetable Project was started in March 2002 A first, live demonstration of basic querying capabilities was given early in October 2003 Implementation of major system components is under way with incremental releases that are planned for December 2003 and February 2004
EGSO - Goals Construct a virtual observatory The main products are a common metadata standard for solar physics and a common set of FITS keywords for future missions Enable more efficient identification and utilization of solar data from a broad range of sources.
Why EGSO is made Distributed data sources –Combining multiple data sources is often necessary Large Data Volumes –Current heliosesimological datasets already contain tens of terabytes Data Mining –Locating the combination of data from multiple instruments most suitable for addressing a given problem is increasingly problematic
EGSO - Workpackages Six workpackages –WP0 –WP1 –WP2 –WP3 –WP4 –WP5 All workpackages involve multiple project institutions
Workpackage 0 responsible for overall project management, communication and dissemination. monitors, assesses and co-ordinates the activities of the other workpackages
Workpackage 1 is responsible for the definition of community and scientific requirements for EGSO, and the development of the system architecture for EGSO plans and facilitates the integration of the outputs of other rorkpackages, ensuring interoperability
Workpackake 2 produce a working version of EGSO, initially taking the form of a 'trial federation' of some of solar data archives held by EGSO partner institutions
Workpackage 3 responsible for producing a set of advanced and intuitive search and visualisation tools create a series of customisable interfaces tailored to the needs of different users accessing.
Workpackage 4 create a unified catalogue of all solar observations, providing a single point of access to data from dozens of solar instruments
Workpackage 5 responsible for the design of advanced image recognition techniques to identify individual features in the solar atmosphere
Roles The system architecture for EGSO makes use of three high level abstractions (roles) to describe and partition system functionality –Provider –Broker –Consumer EGSO has adopted a generic architecture for all roles that is based on the popular "n-tier" style
Provider is the source of all that is handled by EGSO to satisfy user request is the crucial interface between existing data archives and the rest of the EGSO system may offer one or more of the following types of resources –Metadata, obtained descriptions of observations –Data, the actual data files –Services, is there being any capabilities
Broker inserts itself as an intermediary between the provider and the consumer will maintain a list of available providers, a resource registry, based on information submitted by the providers themselves, as well as information shared from others Brokers. will also maintain a catalog, at course granularity, containing a summary of all the observation catalogs that have been incorporated into EGSO
Consumer provides the means for a user of the system to actually visualize, select and manipulate the metadata and data obtained from multiple resources will be able to store the results provided by the Broker, both in memory or, for a longer term persistence, in a disk cache managed by the Consumer will also offer the possibility to use or define workflows, sequences of operations to be performed upon appropriate datasets of interest.
Data model A Data Model has been designed so that incorporates all the relevant entities in the system Framework will include various types of metadata that describe the objects to be included in the EGSO system. –Observational Metadata describes the contents of the stored datasets –Administrative Metadata describes the organizations and resources known to EGSO and the means of accessing them. –Derived Metadata describes additional information extracted from observational data.