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Delivering Grid InteroperabilityDr Alistair Dunlop, Project Manager, OMII-Europe

[email protected]

EU project: RIO31844-OMII-EUROPE2

Outline

• Macro view – What is the project trying to achieve? (4)• The project organisation and structure (3)• The role of standards in grid interoperability (3)• Micro view – Standardised Components from OMII-

Europe (11)• Putting OMII-Europe components together to deliver

real grid interoperability (5)• Summary (3)

EU project: RIO31844-OMII-EUROPE

The big picture• A definition of e-Science…

– “e-Science is about global collaboration in key areas of science and the next generation infrastructure that will enable it”

• ‘Next generation infrastructures’ represented by Grids– Foundation for seamless and secure collaborations over

networks

– National Grid infrastructures: UK NGI, D-Grid, others

• New science will require the combined resources of all existing infrastructures


• E.g., DEISA Grid (Supercomputing/HPC community)– Non WS-based UNICORE 5: Proprietary jobs (AJO/UPL)– No Virtual Organization Membership (VOMS), Full X.509– Suitable for parallel scientific jobs (MPI, many interactions)

• E.g., EGEE Grid (mainly HEP community + others)– Non WS-based gLite: Proprietary jobs (JDL)– Proxy-based X.509 security, but proprietary VOMS support– Suitable for embarrassingly parallel jobs (few interactions)

• Scientists cannot use one middleware to access both (Little adoption of standards)

Problem is e-Infrastructure Islands


GridMiddlewares

EmergingOpen

Standards

others

End-usersvia clients& portals

„Interoperability highway“based on open standards

GOAL: Transparencyof Grids for end-users

GridResources

others

OMII-Europe Vision: Interoperability Highway

http://www.ogf.org/index.php


OMII-Europe in context

• A guide to flagship e-infrastructure projects...– Connectivity (Geant)– Cluster grids (EGEE)– Supercomputer Grid (DEISA)– Middleware (OMII-Europe)

• “Software that enables you to use and easily access these above distributed EGEE and DEISA distributed grid infrastructures”

• “Together these elements form the e-infrastructures that create “Global Virtual Research Communities”...”

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The OMII-Europe Project

• OMII-Europe stands for– Open Middleware Infrastructure Institute for Europe

• It is an EU-funded project: FP6, RI• It has an initial duration of 2 years

• May 2006 -> April 2008

• It has been granted a contribution of 8M €• It involves 16 partners

– 8 EU– 4 USA– 4 China


Partners

Funded Unfunded

University of Southampton (coordinator) UK University of Chicago USA

Fujitsu Laboratories Europe UK NCSA, University of Illinois USA

Kungl Tekniska Högskolan Sweden University of Southern California,Los Angeles

USA

Istituto Nazionale di Fisica Nucleare Italy University of Wisconsin USA

Poznan Supercomputing and Networking Center

Poland Beihang University China

Forschungszentrum Juelich (FZJ) Germany China Institute of Computing Technology, Beijing

China

University of Edinburgh UK Computer Network Information Centre, Beijing China

CERN, European Organisation for Nuclear Research

Switzerland Tsinghua University China


Project Structure and Effort Allocation

• Networking activities– Management, Outreach, Training– 8% Person Effort

• Service Activities– Repository, QA, Support– 25% Person Effort

• Joint Research Activities– Re-engineering, new services, integration,

benchmarking– 67% Person Effort


OMII-Europe Standards-based approach to Grid 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


Participation in Middleware 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)– GIN CG (Grid Interoperability Now)– OGSA-AuthZ-WG (Authorization)– GLUE WG – GFSG WG (Grid File System)– RM WG (Reference Model)– OGSA Naming WG– Technical Standards Committee– GSA RG (Grid Scheduling Architecture)– GRAAP WG (Grid Research Agreement Allocation Protocol)– OGSA BYTE IO WG– OGSA D WG (Data)– OGSA DMI WG (Data Movement Interface)


The Virtuous Cycle – Technology transfer with Grid projects and standards organisations

Globus

OMII-UK

CROWN

Components

Components

IN

OUT

JRA1

SA2

JRA4

JRA3

SA1

SA3

JRA2New Components

Standards Implementation

Standards Compliance Testing and QA

Benchmarking

Integrated Components

Supported Components on Eval. Infrastructure

Repository


Standards Components from OMII-Europe

• 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– Information modelling

• Infrastructure integration– Initial gLite/UNICORE/Globus interoperability– Interoperable security framework– Access these infrastructure services through a portal


Job Submission

• Unify Job Submisson 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


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 VOMS integrated with UNICORE


Accounting

• Unify accounting information across middleware distributions

• Provide standardized interfaces for accessing that information– Information standard:

• Usage Record Format (URF)– Service interface standard:

• Resource Usage Service (OGSA-RUS)

• Alpha versions RUS – gLite (DGAS)– Globus (SGAS)– UNICORE


Data Access

• Port OGSA-DAI 3.0 from Globus to other middleware distributions available throughout Europe and China– UNICORE– gLite– CROWN


Information Modelling

• There is a 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 Information Model in the context of OGF GLUE WG and its implementation


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


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


Behind the Repository

• Leverage existing infrastructure & projects– ETICS

• Capture build & test configuration data for repeatability

– NMI Build & Test Framework• Manage cross-platform environment for build & tests

– Condor• Underlying execution infrastructure

• Provides reports to be displayed within the portal– Builds: Pre-requisites & platforms– Testing: Conformance & Interoperability


Tests For Standards Conformance

• Job Submission and Job Monitoring– Job Submission Description Language (JSDL)– Basic Execution Service (BES)

• Accounting – Usage Record (UR)– Resource Usage Service (RUS)

• Database Access– WS-DAI, WS-DAIX, WS-DAIR (OGSA-DAI)

• Virtual Organisation Management– Move towards SAML2


Standards status: March 2008• Accounting

– SGAS/DGAS/UNICORE-RUS• OGSA-Resource Usage Service (RUS – OGF draft specification) - implies: • Usage Record Format (UR) (OGF recommendation status awaiting implementation)

• Job Submission and Job monitoring– CREAM-BES, GLOBUS-BES, UNICORE-BES

• OGSA-Basic Execution Service (BES) version 1.0 (OGF final specification) – implies:• Job Submission Description Language (JSDL) version 1.0 (OGF final specification)

• Database Access– OGSA-DAI

• WS-DAIX and WS-DAIR are being implemented in OGSA-DAI (both currently OGF candidate standards at 1.0 awaiting implementation)

• Virtual Organisation Membership Service– VOMS implements the following:

• Security Assertion Markup Language (SAML) Version 2.0 OASIS (March ’05)• Extensible Access Control Markup Language (XACML) version 2.0 OASIS (February ’05)

• Information modelling– GLUE 2.0

• standard is currently draft, expected to go out for public comments by the end of April 2008, final version by September 2008


Using OMII-Europe components to deliver grid interoperability – WISDOM scenario

• Wide In Silicio Docking On Malaria (WISDOM) projects– Developing new drugs for neglected and emerging

diseases with a particular focus on malaria– Accelerated Research & Development for emerging

and neglected diseases– Massive computation reduces R&D costs

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Dr. Nicolas Jacq [16]


• WISDOM uses EGEE for large scale in-silicio docking– Comp. method for prediction of whether one molecule

will bind to another • Using AutoDock and FlexX software provided via gLite in

EGEE (FlexX – licensed software on EGEE with 6k licenses)

– Output is a list of best chemical compounds (potential drugs – NOT final solution)

• DEISA to find best compound from potential drugs list– Fast molecular dynamics computations

• Using highly scalable AMBER (Assisted Model Building with Energy Refinement) in DEISA

• Goal: Accelerate drug discovery using EGEE + DEISA

WISDOM in the context of DEISA & EGEE


Interoperability Scenario: WISDOM

SAML- based Attribute Authority (AA) VOMS

gets central role & middleware independent


Further Interoperability Scenarios: EU - IndiaGridWork in progress


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


Caveat...

• So you can use EGEE and DEISA seamlessly? Not quite...– OMII-Europe has provided much of the required

technical interoperability, but– Needs EGEE and DEISA sites to deploy either the

latest versions of the grid middleware, or to deploy the OMII-Europe services available from the repository

– AND...– Currently need to apply for resources independently.

Intention is that EGI will do this in the future

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Summary (1/2)• OMII-Europe is a 24 Month EU funded project with 16 partners

to establish grid infrastructure interoperability through implementing a set of agreed open standards on all middleware platforms

• OMII-Europe is 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 and gLite managed resources to be used by the same job

• Users can try interoperability on the OMII-Europe evaluation infrastructure, or obtain services for installation on their own resources from the OMII-Europe repository


Summary (2/2)

• 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

• OMII-Europe requested continuing funding in the September EU call to support the existing services and provide further services in the areas of data and Grid management

• We are interested in working with projects that have real grid interoperability issues to ensure our solutions match your needs.


Further Information

General information: http://omii-europe.org

Repository: http://repository.omii-europe.org

Support: http://support.omii-europe.org

With special thanks to the following project members for diagrams and slides:

• Morris Riedel• Stephen Brewer

http://omii-europe.org/

http://omii-europe.org/

http://repository.omii-europe.org/

http://support.omii-europe.org/

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