Open Science Grid Open Science Grid and TeraGrid Interoperability Shaowen Wang The University of Iowa August 29, 2005 OSG Blueprint Meeting

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 2 Open Science Grid Background Open Science Grid (OSG) –Capacity Grid TeraGrid (TG) –Capability Grid

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 3 Open Science Grid On-Going Work OSG-TG DAC project –Chris Baumbauer (Purdue University) –Julian J. Bunn (Caltech) –Greg Cross (University of Chicago/Argonne National Laboratory) –Vladimir Litvin (Caltech) –Fred C. Luehring (Indiana University) –Mike Shuey (Purdue University) –Shaowen Wang (The University of Iowa) RAT (Requirement Analysis Team) –Stuart Martin –Shaowen Wang –Etc. OSG preproposal –Caltech –Fermi Lab –Indiana U. –Purdue U. –U. at Buffalo –U. of Chicago / ANL –The U. of Iowa –UCSD –U. of Texas (TACC)

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 4 Open Science Grid Scope of Work Scope of work –Authentication / authorization / accounting / auditing (AAAA) –Information services reconciler (ISR) –Data storage, transfer, and replication (DTR) –Job submission and monitoring (JSM) –Resource discovery and scheduling (RR)

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 5 Open Science Grid Methods Deployment of common grid services Bridges/Brokers/Gateways/Portals Service oriented architecture (SOA) Approaches –Bottom-up Assuring basic services to be compliant –Top-down Application-driven approach

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 6 Open Science Grid Service-Oriented Assessment Basic –AAAA –Information services –Job execution –Data handling –Dynamic/edge services –Service discovery User/application level –Resource selection –Resource brokering –Job management –Data management

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 7 Open Science Grid Information Services Architectures/implementations –OSG BDII (Berkeley Database Information Index) MDS MIS-CI MonALISA GridCat GIP (generic information provider) –TG GPIR (Grid Portal Information Repository) Inca MDS Standards –GLUE schema

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 8 Open Science Grid Accounting OSG –VO-based, currently TG –AMIE

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 9 Open Science Grid Interoperation Quality User support and troubleshooting –Number of users supported –Speed for resolving problems Application performance –Correctness –Stability of expected running time –Scalability to available resources

August 29, 2005 OSG Blueprint Meeting: Open Science Grid and TeraGrid Interoperability – S. Wang 10 Open Science Grid Discussion Constraints and levels of interoperation –Catalogs –Monitoring –Accounting/Auditing Responsibilities –Bridges –Brokers –Gateways –Portals