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The State of DOSAR

Learn about the distributed organization for scientific and academic research (DOSAR) and its history, goals, and accomplishments. Discover the developments since the last workshop and what's on the horizon. Explore the impact of DOSAR in enabling grid use and fostering collaboration across disciplines.

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The State of DOSAR

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  1. The State of DOSAR Outline What Exactly is DOSAR (for the new folks) Brief History Goals, Accomplishments, & Strategy Developments Since Last Workshop On the Horizon … Conclusions

  2. What Exactly is DOSAR ? Distributed Organization for Scientific & Academic Research • Community and campus based grid organization • Its primary goal is spreading/enabling grid use • DOSAR in Korean is the God of Martial Arts • DOSAR evolved from the DØ Remote Analysis effort • Coordinated group efforts in DØ simulation/reconstruction/production • One goal is to work closely with other disciplines • Each group should play a leadership role in realization of computing grids in corresponding campuses and states (nucleation points …)

  3. History Ancient times: DØ Remote Computing Era • SAM, DØ data management system, in place: pre-2001 • DØ Remote Analysis Model Proposed: Nov. 2001 • Proposal for RAC accepted and endorsed by DØ: Aug. 2002 • UTA awarded MRI for RAC: June 2002 • Formation of DØSouthern Analysis Region (D0SAR 1.0): Apr. 2003 • D0SAR DØ MC Production begins • Activation of 1st US (Regional Analysis Center) RAC at UTA: Nov. 2003 • Formation and activation of DOSAR Grid for MC: Apr. 2004

  4. Central Analysis Center (CAC) Normal Interaction Communication Path Occasional Interaction Communication Path …. RAC RAC ... … IAC IAC IAC IAC …. …. DAS DAS DAS DAS DØ Remote Analysis Model (DØRAM) Fermilab Regional Analysis Centers • Data and Resource hub • MC Production • Data processing • Data analysis Institutional Analysis Centers Desktop Analysis Stations

  5. History Modern times: beyond DØ • Transition to Distributed Organization for Scientific and Academic Research, DOSAR: Apr. 2005 (DOSAR 2.0) • Active engagements with LHC experiments began • DOSAR VOMS installed at UTA: May 2005 • DOSAR registered as a VO in OSG: July 2005 • ATLAS distributed production and analysis system, Panda, implemented at OU and UTA: Jan. 2006 • All groups engaged in LHC experiments

  6. Who is DOSAR ? • First Generation IAC’s • University of Texas at Arlington • Louisiana Tech University • Langston University • University of Oklahoma • Tata Institute (India) • Second Generation IAC’s • Cinvestav, Mexico • SPRACE - São Paulo Regional Analysis Center, Universidade Estadual Paulista; Brazil • University of Kansas • Kansas State University • Third Generation IAC’s • University of Arizona, Tucson • Rice University • Ole Miss, University of Mississippi • Iowa State University • Louisiana State University • Oklahoma State University • …

  7. Goals (preamble) Many branches of science routinely reside at the boundaries of computing technology With projects which span many institutions, computing resources must be pooled (GRID) As with many resources, the needs often exceed what is available (even when carefully pooled) The projections for many current & future projects fall in this category (esp LHC computing) At the same time, we realize that at most institutions, the vast majority of computing cycles are idle a large fraction of the time

  8. Goals As needs increase faster than funding, the scientific community will need to tap into these un(under)-used resources but, there are many barriers to utilizing these resources (technical, financial, manpower, …) (strength in collaboration) DOSAR seeks to bring together institutions which can/must use GRID technology to solve their computing problems (esp smaller institutions) (member institutions should serve as nucleation points for regional/statewide GRIDS) DOSAR should, as necessary, serve as a representative/liason for these institutions to the greater GRID community DOSAR should help enable maximal use of available resources at the member institutions (all institutions ?)

  9. Accomplishments • LTU brought in Super-Mike and additional resources for DØ & ATLAS • UTA plays leadership role in HiPCAT, Texas Grid community; Leading BioTex grid, working with chemists, geologists and medical professionals • LTU Working as a leading institution in LONI, Louisiana Grid community • OU and LU have been working toward creating “The Oklahoma state grid”, working closely with OSCER • SPRACE leads Brazilian national grid effort w/ funds!!!

  10. DØ Production

  11. Breakdown of DOSAR Contribution to DØ Production

  12. DOSAR Weekly Production by site (common scale)

  13. DOSAR Weekly Production by site

  14. DØ Data Reprocessing Substantial DOSAR contribution ?

  15. Some Successes in DOSAR Funding • Funds from NSF MRI for UTA – RAC: 2002 • Construction of the first U.S. university based RAC • EPSCoR + University funds for LTU – IAC: 2003 • Increase IAC compute resources • Brazilian National Funds for SPRACE: 2003 & 5 • Construction of an extensive RAC for • EPSCoR funds for OSU, OU & LU: 2004 • Compute resources for IAC • Human resource for further development • Renewal submitted • LTU at part of LONI wins support from State of LA: 2005 • OU, LU and UTA, together with UNM, won a joint ATLAS Tier 2 site: 2005 • LTU won a joint MRI funds: 2006

  16. DOSAR Strategy • Maximally exploit existing software and utilities to enable as many sites to contribute to the DØ and LHC experiments • Continue to participate in DØ MC and Reco activities in opportunistic manner • Focus on LHC experiments • Support OSG move into the global grid framework • Engage in and contribute significantly in OSG • Engage in realization of computing grid beyond HEP • Work closely with campus and state computing people to bring grid onto campuses • Bring DOSAR specific computing jobs to the grid • Want to make grid usage more commonplace

  17. Working with OSG • We accomplished virtually everything we wanted in DØ • J. Snow (LU) is the leader in MC production • Bring fresh expertise to OSG • Expertise in monitoring solutions such as Ganglia and MonALISA  UTA working on Panda ATLAS monitoring together with CMS experiment • LTU working on first implementation ofHAOSCAR (High Availability Open Source Cluster Application Resources)w/ OSG stack

  18. Contributions to OSG • Testing of framework, middleware, and user interfaces. • Active participation in OSG integration and deployment activities. • Partner with high-speed optical network initiatives • Help implement and utilize grid computing technology for educational use. • Participate and test grid-based HEP data analysis and disseminate the experience to OSG

  19. Developments Since Last Workshop Potential expansion of DOSAR “in to Africa” … Participation of DOSAR in NSF SUCCEED Proposal to develop GRID Outreach and Educational Opportunities Representation of DOSAR on the OSG Council On the Horizon … Imminent expansion of OSG(+ATLAS) to MS Windows platform - this is an extremely significant development(congrats to OU group!) ATLAS testing on DOSAR sites - use of Tier3 sites in ATLAS prod

  20. Conclusions • DOSAR is an example of a successful grid organization • Critically important asset to DØ • All groups actively engaged in LHC experiments • Using DOSAR resources for DØ and LHC data analyses and production • Closely engaged in OSG activities • Continue Desktop Cluster deployment, CONDOR pools • Provide leadership role in state-wide grid efforts • Expanding membership and scope

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