Open Science Grid and TeraGrid Interoperability

1
Open Science Grid and TeraGrid Interoperability

• Shaowen Wang
• The University of Iowa
• August 29, 2005
• OSG Blueprint Meeting

2
Background

• Open Science Grid (OSG)
• Capacity Grid
• TeraGrid (TG)
• Capability Grid

3
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

4
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)

5
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

6
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

7
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

8
Accounting

• OSG
• VO-based, currently
• TG
• AMIE

9
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

10
Discussion

• Constraints and levels of interoperation
• Catalogs
• Monitoring
• Accounting/Auditing
• Responsibilities
• Bridges
• Brokers
• Gateways
• Portals