Building components for Grid Interoperability

Building components for Grid InteroperabilityStephen Brewer, Deputy Project Manager, OMII-Europe

[email protected] 22 – Boston, MA

EU project: RIO31844-OMII-EUROPE2

Outline

• What is OMII-Europe – Overview of the project– Vision and Objectives

• Approaches to Interoperability

• What OMII-Europe is Doing

• What can OMII-Europe do for you?


What is OMII-Europe

• 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


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

middleware components

leveraging existing work

and activities “


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


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


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”


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)


OMII-Europe Guiding Principles

• Committed to standards process– Implementing established open standards– Providing feedback to the standards process (e.g. OGF)

• Quality Assurance– Published methodology and compliance test– All software components have public QA process and audit trail

• Impartiality– OMII-Europe is “honest broker” providing impartial

advice/information on e-infrastructures


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


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


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


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?


New Services Activity

• To identify capabilities which are missing from the OMII-Europe initial plans

• To identify priorities for the placement of such capabilities

• To work for the inclusion of the most relevant missing capability during the 2nd year of the project (May 2007-Apr 2008)

• To identify the challenges for further work


The First Missing Piece:a Community-agreed Information Model for Computing Resources

• OGSA-BES and JSDL are already considered by OMII-Europe

• They lack 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 implementationIt


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


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

• A complete set of fully interoperable services will be available in spring 2008


Summary (2/2)

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

• 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


Further Information

http://omii-europe.org

Documents

Building components for Grid Interoperability