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2004/03/08Japan-France Grid Computing Workshop in Paris Japanese Virtual Observatory Project Masatoshi Ohishi National Astronomical Observatory of Japan.

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Presentation on theme: "2004/03/08Japan-France Grid Computing Workshop in Paris Japanese Virtual Observatory Project Masatoshi Ohishi National Astronomical Observatory of Japan."— Presentation transcript:

1 2004/03/08Japan-France Grid Computing Workshop in Paris Japanese Virtual Observatory Project Masatoshi Ohishi National Astronomical Observatory of Japan and Sokendai masatoshi.ohishi@nao.ac.jp

2 2004/03/08Japan-France Grid Computing Workshop in Paris Collaborators NAOJ s Y. Mizumoto s N. Yasuda s Y. Shirasaki s M. Tanaka s S. Honda Ochanomizu U. s Y. Masunaga Osaka U. S. Shimojo & his team Titech S. Matsuoka & his team Fujitsu Ltd. s K. Monzen s K. Kawarai s Y. Ishihara s H. Yanaka s Y. Yamaguchi s M. Ishida s N. Saito s K. Abe s J. Tsutsumi s H. Nakamoto s Y. Morita Ken Miura

3 2004/03/08Japan-France Grid Computing Workshop in Paris Large Telescopes of NAOJ s Subaru (optical & Infrared) @ Hawaii s Nobeyama (Radio) single dish :  45-m interferometer : 6 x  10-m solar interferometer : 84 x  75-cm  HALCA – in orbit  8-m

4 2004/03/08Japan-France Grid Computing Workshop in Paris Subaru

5 2004/03/08Japan-France Grid Computing Workshop in Paris Subaru Telescope (optical & IR) 8.3-m mirror

6 2004/03/08Japan-France Grid Computing Workshop in Paris

7 2004/03/08Japan-France Grid Computing Workshop in Paris 5000+ Galaxies !!

8 2004/03/08Japan-France Grid Computing Workshop in Paris 45m Radio Telescope

9 2004/03/08Japan-France Grid Computing Workshop in Paris VSOP HALCA VLBI Space Observatory Programme

10 2004/03/08Japan-France Grid Computing Workshop in Paris Infrared Satellite by JAXA Launch : 2005 ? JAXA is going to join JVO !!

11 2004/03/08Japan-France Grid Computing Workshop in Paris Data Productivity s Nobeyama Radio ： ~1TB/yr s Subaru@Hawaii ： ~20TB/yr s ALMA （ planned ） ： ~PB/yr Flood of excellent data (survey data) Digitized & Archived

12 2004/03/08Japan-France Grid Computing Workshop in Paris Unknowns of Astronomy s Physics just after the Big Bang ? s How Galaxies were formed ? s Averaged density of the Universe etc. → statistical analyses for homogeneous survey data are crucial

13 2004/03/08Japan-France Grid Computing Workshop in Paris The Nature of Astronomers s Higher sensitivity ! s More Data ! s Wider Area ! s Multi Wavelength Data !

14 2004/03/08Japan-France Grid Computing Workshop in Paris アイデア 観 測 検 索 データ 解 析 解 析 研究発表 実望遠鏡での 観測 仮想望遠鏡での 観測

15 2004/03/08Japan-France Grid Computing Workshop in Paris HPC + High Speed NETWORK +GRID Technology → it is possible to federate multi- wavelength-DBs and computing facilities for data analyses → Virtual Observatory

16 2004/03/08Japan-France Grid Computing Workshop in Paris 10 Gbps

17 2004/03/08Japan-France Grid Computing Workshop in Paris JVO prototype : Ver. 1 s To establish seamless access to federated DBs by using the Grid technology s To define JVO Query Language, and to implement its parser

18 2004/03/08Japan-France Grid Computing Workshop in Paris

19 2004/03/08Japan-France Grid Computing Workshop in Paris Queries for Astronomical Data s Need to consider the following items: Searches on Spherical Coordinate → 1 deg west of longitude 0 is longitude 359 deg ! Difference of spatial resolutions Pointing accuracy of telescope

20 2004/03/08Japan-France Grid Computing Workshop in Paris Astronomical Data s Image s Spectrum s Photon count s Light curves s etc. s Catalogue source position, size, brightness, other parameters

21 2004/03/08Japan-France Grid Computing Workshop in Paris JVO QL for Federated DBs

22 2004/03/08Japan-France Grid Computing Workshop in Paris User Interfaces Need to know about SQL to use JVOQL → An editor to create JVOQL from GUI Editable on screen → more flexibility for advanced users

23 2004/03/08Japan-France Grid Computing Workshop in Paris

24 2004/03/08Japan-France Grid Computing Workshop in Paris Development of Prototype2 For preparation of Operational System s User registration : single sign-on s User area over Firewall : GSI-SFS s Adoption of GT3 s Implementation of several analysis tools

25 2004/03/08Japan-France Grid Computing Workshop in Paris User DB Grid service OAI-PMH MetaDB JVOQL editor DB search by resource finder UCD finder Name Resolver Execution Monitor User Registration User Authentication User Interface JVO System Registry （ XMLDB ） Query interface User athentication Simple Analises Source extraction （ Sextractor ） HyperZ Image Manipulation Photometry Special ANalises Grav. Lens Search Galactic dust Evolution of Chemical Comp. Analyses interface JVOQL Parser JB Scheduler JB Executor JB Controller JB VOTable Viewer Plotter Image Data Viewer Spectrum Data Viewer Overlay of Muti-catalogs Overlay of muti-wavelength images DB search by resource finder DB Navigator Data Display Servlet JSP DB metadata query Query Results (XML) Grid service Query script (XPath) Query Instruction (JVOQL) Status cofirmation Query Execution Status JVOQLParsed JVOQL Parsed JVOQL, results Obs. Instruction Obs. Instruct. results Data transfer by GSI-SFS Query OrderResults sent bySOAP Astro DB Grid service OAI-PMH MetaDB OAI-PMH Astro DB Grid service OAI-PMH MetaDB Query OrderResults sent bySOAP Grid service Controller JB Scheduler JB Executor JB OAI-PMH Query OrderResults sent bySOAP Data Transfer by GSI-SFS Status confirmation Analysis Execution Status Analysis Instruction GridFTP

26 2004/03/08Japan-France Grid Computing Workshop in Paris Resource Meta Data Identity metadata curation metadata service metadata content metadata column metadata Catalog 、 Table Resource は column metadata 以外を持つ。 Column Resource はすべての metadata をもてる。 ( 省略 可）

27 2004/03/08Japan-France Grid Computing Workshop in Paris Comparison of two Prototypes Prototype 1Prototype 2 toolkitGlobus tk 2Globus tk 3 Services used GRAM GridFTP Grid Services RFT registryUDDIXMLDB Commu. overhead ~20 – 30 sec~ 30 msec

28 2004/03/08Japan-France Grid Computing Workshop in Paris A Scientific Target on Prototype 2 s Search for Gravitational lenses created by Cosmic Strings

29 2004/03/08Japan-France Grid Computing Workshop in Paris Cosmic Strings? s Theoretical origin of the elementary particles which existed (?) at t ~ 10 -35 s ， T ~ 10 15 GeV s Not a POINT, has its SIZE s Width < 10 -22 m, Length ~ size of the Universe. s Mass of 10km string ~ the Earth

30 2004/03/08Japan-France Grid Computing Workshop in Paris Gravitational Lens s A phenomenon that the space-time is distorted by a huge mass object, and multiple images of another object behind the massive object are observed around it.

31 2004/03/08Japan-France Grid Computing Workshop in Paris Search for Gravitational Lenses created (?) by Cosmic Strings s SXDS data observed by Subaru s Query results were obtained less than 5 min., displaying SEDs s It has been proven that VO can accelerate researches.

32 2004/03/08Japan-France Grid Computing Workshop in Paris Road Map 2003 Prototype 2 → development of components for operation 2004 start to develop operational system late 2004 ?? trial use 2005-2006 trial use & upgrade 2007 prepare for partial operation of ALMA

33 2004/03/08Japan-France Grid Computing Workshop in Paris ALMA in Chile (sub-mm wave) EU-US-J Collaboration

34 2004/03/08Japan-France Grid Computing Workshop in Paris VO Projects in the world s NVO (USA), AVO (EU),AstroGrid (UK) s Germany, Canada, Russia, Australia s India, China, Italy, France (CDS), Korea, JAPAN Interoperability : International Virtual Observatory Alliance (IVOA) http://www.ivoa.net/ CDS: Strasbourg Data Center

35 2004/03/08Japan-France Grid Computing Workshop in Paris WGs in IVOA s Registry, Data model, Data Access Layer, VOtable, VOQL, Grid, UCD, Standard Documents s Executive Committee s Interoperability meetings were held twice

36 2004/03/08Japan-France Grid Computing Workshop in Paris SkyQL & ADQL s JVOQL has been adopted as one of the basis for SkyQL (standard query language in IVOA) s XML description of SkyQL = ADQL Astronomical Data Query Language

37 2004/03/08Japan-France Grid Computing Workshop in Paris Virtual Observatory → Common Infrastructure for Astronomy

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