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Building Components for Grid Interoperability
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  1. Building Components for Grid Interoperability Stephen Brewer, Achim Streit Alistair Dunlop University of Southampton Forschungszentrum Jülich

  2. What is OMII-Europe • OMII-Europe stands for • Open Middleware Infrastructure Institute for Europe • It involves 16 partners • 8 EU (U-Southampton (coord.), Fujitsu Labs of Europe, KTH, INFN, PSNC, FZJ, U-Edinburgh, CERN) • 4 USA (U-Chicago, NCSA, U-Southern California, U-Wisconsin) • 4 China (Beihang U, China Institute of Computing Technology, Computer Network Information Centre, Tsinghua U)

  3. Vision & Mission • Vision • “e-Science having easy access and use of Grid resources in heterogeneous e-infrastructures crossing national, pan-European and global boundaries” • Mission • “Enabling of e-infrastructure interoperability by providing standards-based Grid middleware components leveraging existing work and activities”

  4. Focus • Achieving interoperability through common standards • Common standards is the long term solution • Significant involvement and success in OGF and OASIS • Implementations of standards in tandem with standards development on all middleware platforms

  5. Approaches to Interoperability • Adapters-based: • The ability of Grid middleware to interact via adapters that translate the specific design aspects from one domain to another • Standard-based: • the native ability of Grid middleware to interact directly via well-defined interfaces and common open standards * definition inspired by OGF GIN CG

  6. Who Benefits from Interoperability? • Grid Developers • A single standard set of services on all Grid middleware systems • Applications portable across different Grid middleware systems • e-Science application users • Common ways for accessing any e-infrastructure resources • Potential access to a significantly larger set of resources • e-resource owners • Reduced management overheads as only a single Grid middleware system needs deployment • Potential for greater resource utilisation “For the Grid to deliver on it’s promises interoperability needs to be taken for granted like network interoperability”

  7. JRA4 SA3 SA1 JRA3 SA2 The Virtuous Cycle – Technology transfer with Grid projects and standards organisations Standards Compliance Testing and QA JRA2 New Components Standards Implementation Components JRA1 IN Globus Benchmarking Repository OUT OMII-UK Components CROWN Supported Components on Eval. Infrastructure Integrated Components

  8. OMII-Europe Participation in Standardisation • Most project participants involved as member/observer in many OGF WG • 11 project participant hold senior positions in • OGSA DAIS WG (Database Access and Integration Services) • OGSA RUS WG (Resource Usage Server) • OGSA BES WG (Basic Execution Service) • OGSA JSDL WG (Job Submission Description Language) • GRAAP WG (Grid Research Agreement Allocation Protocol) • OGSA DMI WG (Data Movement Interface) • GIN CG (Grid Interoperability Now) • OGSA-AuthZ-WG (Authorization) • GLUE WG • GFSG WG (Grid File System) • RM WG (Reference Model) • OGSA Naming WG • OGSA BYTE IO WG • OGSA D WG (Data)

  9. What OMII-Europe is doing? • Initial focus on providing common interfaces and integration of major Grid software infrastructures • Common interoperable services: • Database Access • Virtual Organisation Management • Accounting • Job Submission and Job Monitoring • Infrastructure integration • Initial gLite/UNICORE/Globus interoperability • Interoperable security framework • Access these infrastructure services through a portal

  10. Job Submission • Unify Job Submission and Monitoring interface • Adoption of emerging OGSA-BES and JSDL standards • Alpha BES and JSDL implementations for • UNICORE 6, gLite 3.1, Globus 4, OMII-UK, CROWNgrid • Interoperability demonstrated through use of a BES compliant meta-scheduler

  11. VO Management • To provide a common Virtual Organisation (VO) management solution across middleware distributions • Extend VOMS Interface to support emerging AuthZ standard • compliance with SAML Authorisation model • Extension, not a replacement interface • Public release of SAML-VOMS integrated with UNICORE 6

  12. Accounting • Unify accounting information across middleware distributions • Provide standardized interfaces for accessing that information • Information standard: Usage Record Format (UR) • Service interface standard: Resource Usage Service (OGSA-RUS) • Alpha versions RUS • gLite (DGAS), Globus (SGAS), UNICORE

  13. Data Access & Portal • Data Access • Port OGSA-DAI 3.0 from Globus to other middleware distributions available throughout Europe and China • UNICORE, gLite, CROWN • Portal • Deliver tools for developing Grid portals and support for key Web and Grid standards and technologies • Objectives: • Develop gateway to OMII Evaluation Infrastructure • Develop tools for portal and grid software training • Explore new approaches for grid portal development

  14. Infrastructure Integration • Putting all developments together and test them in a global scenario (e.g. secure job submission)

  15. Repository of Open-Source Software • Make available software reengineered within OMII-Europe and contributed by third parties • Single services/tools & complete distributions • Provide an interface to select software from the repository based on user requirements • By capability/standards/provider/… • Support the upload, download and installation of the software • Document platform portability & pre-requisites • Verify the software through compliance & metrics tests • Using the ETICS software

  16. New Services Activity • To identify capabilities which are missing from the OMII-Europe initial plans  implementation in 2nd year of the project • First Missing Piece: a Community-agreed Information Model for Computing Resources • Lack of a common description of Grid resources suitable for discovery, monitoring and scheduling • Many descriptions exist, e.g.: GLUE Schema, NorduGrid Schema • Working on the definition of next-generation GLUE 2 Information Model in the context of OGF GLUE WG and its implementation

  17. What can you do Now… and Later… • Now • Most products at Beta stage becoming publicly available • They provide basic interoperability of multiple grid middleware systems focusing on job execution • Available to early adopters working with OMII-Europe partners • Spring 2008 (end of current project) • Further security integration work between different middleware platforms (SAML-VOMS, TLS (Transport level security)) • Completed QA’d services and demonstrated end-to-end solutions • Availability of GLUE 2 information model service implementations

  18. Interoperability Scenario - WISDOM • Wide In Silico Docking On Malaria (WISDOM) • Developing new drugs for neglected and emerging diseases with a particular focus on malaria • Accelerated research & development and reduce costs • WISDOM already uses EGEE for large “in silico docking” tests • Methods to predict molecule bindings • Used software packages AutoDock and FlexXare offered via gLite in EGEE • Result: list of best compounds

  19. Interoperability Scenario - WISDOM • Refine best compound list using MD (molecular dynamics) simulations • AMBER software is ideal for this • AMBER is a highly scalable code that runs highly efficient on close-coupled HPC systems • DEISA offers HPC resources • AMBER is available through UNICORE • How can scientists use both e-infrastructures to accelerate drug discovery, although different Grid technologies are used in EGEE and DEISA ?

  20. slide courtesy of Morris Riedel

  21. Summary • OMII-Europe establishes Grid infrastructure interoperability through implementing common open standards in major Grid middleware technologies • Implementing a number of components that will allow identically specified jobs to be run, managed and migrated to different middleware platforms • Initial versions of BES, VOMS/SAML and security service have already enabled UNICORE 6 and gLite managed resources to be used by the same job • Services can be obtained from the OMII-Europe repository • We anticipate OMII-Europe services to be integrated into standard middleware distributions as well as deployed on large scale e-infrastructures such as EGEE and DEISA

  22. Further Information