Presentation on theme: "A Virtual Research Environment (Extending the Grid to the Desktop)"— Presentation transcript:
1 A Virtual Research Environment (Extending the Grid to the Desktop) VREA Virtual Research Environment (Extending the Grid to the Desktop)Rob Crouchley (University of Lancaster)Rob Allan (CCLRC Daresbury Laboratory)Add some details from the NW-GRID (Lancaster proposal), a work bench,A vision by Daresbury and Lancaster
2 Why have a VRE ?“to make the use of e-Science technologies, methodologies and resources easier and more transparent for users than simply developing bespoke applications on a generic infrastructure toolkit (such as Globus GT2 or OGSI/WSRF).”We need to:Bridge the gap between different types of technology (database management, computational methods, sensor Grids, networks, Condor resources, visualisation systems, collaborative working, Access Grid, etc.);Provide an environment to enhance the programmability and usability of such a Grid by integrating work from a number of ongoing research projects;Add value to the Grid by implementing a VRE on the JCSR clusters and resources at other e-Science Centres;Include Grid-based tools for research collaboration.OSGI Open Grid Services InfrastructureA = ArchitectureWeb Services-Resource Framework (WSRF)
3 Perceived problems with using the GRID Currently requires heroic effort to use it;GT2 is very complicated and difficult to install, requires root privileges to install it and various firewall ports to be open, duplicates some system libraries;Functionality nevertheless limited;Can make other University services vulnerable if not properly managed;User requirements not fully articulated;Human factors not addressed, needs familiar GUI, pull down menus, etc.Requirements gathering now high on the agenda (JISC, ETF, UTF, …)We are going to provide a simplified way of accessing and using the GRI
4 The Grid “Client Problem” Many clients want to access a few Grid-enabled resourcesGrid CoreConsumer clients: PC, TV, video, AGMiddlewaree.g. GlobusWorkplace: desktop clientsGrid CorePortable clients: phones, laptop, pda, data entry…
5 Institutions need Autonomy and Security Host – client relationshipExample solution suggested byWeb server - browserCommunication must be initiated by client because of firewall around client’s institution. Can use a proxy or gateway.
6 So a Virtual Research Environment? Requirements:Easy to installFamiliar interfacePersonalisableWork through firewallsExtensible functionalityPersistentPervasiveSecure
7 OptionsProvide heavyweight functionality (Globus?), but only on Grid-enabled hosts;Implied need for client-server software architecture, e.g.:Web-based portal with familiar browserClient programming library, API in C, C++ Java, Perl, Python, R etc.Ability to link to existing applications/ GUIsCommand-based shell interfaceDrag and Drop interface (a la Mac)Need a published set of services on Grid hosts – OGSA model, registry, semantics;Need easy development and deployment framework for applications and client tools, e.g. using Web services - encourage community contribution via an open process.
8 Human FactorsGrowing recognition of the need to design a behaviourally appropriate interface to the Grid;e.g. Rick Stevens’ Access Grid and work on human factors issues;Lot of industrial knowledge here, ergonomics etc. needs to be built on;Usability Task Force will take a lead;Job of scientists already hard – need tools that do not make it harder!
9 Science of Collaboratories Digital libraries & documentsgroups-to-informationfacilitiespeople-to-peopleCommunication,CollaborationServicesDistributed,media-richtechnologyRemote instrumentsNSF Funded ITR
10 Some Tools to aid Collaborations Phone, …WIKI – Web based on-the-fly multi-editorial document management using hypertextForum – Web based threaded mail discussion and archivesChandler – personal information management system: mail, calendar, contact list, tasks, repositories, shared docs, etc.Microsoft Outlook – ditto, but Windows basedBSCW –Web based shared workspace system, document upload, event notification, group management and much moreGridSite – Web based secure document sharing and multi-editorialPHPNuke – news, messages, topics, resources, mail, links, etc. – used for HPCPortal and InfoPortal v2Access Grid – on-line multicast meetings and shared presentationsNetMeeting – Microsoft tool for on-line meetingsCHEF – workgroup based system with chat, resources, news etc. – used in ReDReSSChandler - Open Source Personal Information Manager. , calendar, contacts, tasks, free-form items. Easy sharing and collaboration. Server optional. Linux, Mac, and Windows. Modular and extensible platform.BSCW: Basic Support for Collaborative Working -
11 Some basic VRE Functions VRE must take care of many things behind the scenes:Authentication and authorisation (Shibboleth and Permis in line with JISC proposals…);Shared development of content by staff using content management and editing tools:Access to middleware resources and documentation,Access to training materials and resources,Collaboration services,Access to support, consultancy and other servicesAccess to Grid Services - user access via pre-defined tools and applications to the UK e-Science Grid;Data access – e.g. using Storage Resource Broker;Access to broadcasts – e.g. on the Access Grid network;Management functions - for experts to maintain the system and deploy new applications.Storage Resource Broker from San Diego gives access to files or data bases remotely,
12 The VRE needs to be more than a Web page Why should it be different?Like the Web, persistent and pervasive, but:It provides a managed environment, giving secure access to autonomous Grid services, providing resources, based on user requirements;It uses diagnostic/ background data to orchestrate the material for each individual (via session management/ profiling services);It will be specific to the needs of groups of scientists (virtual organisations), providing new routes to e-Science;The technology will be easily extendable to include all new tools;It could be an early adopter of new WSRF/ GT4 and portlet standards.
13 Examples of Activites: 1 IeSE IeSE: Integrated e-Science Environment for CCLRC.Web service interfaces + presentation APIs + Grid (via Globus GT2). Hosted on IBM BladeCenter at Daresbury.HPCPortal – services for Grid resources and applicationsDataPortal – search and access remote data repositoriesGapTk – scientific visualisation servicesInfoPortal – Grid information servicesGROWL – lightweight C and R library interfacesCustomised for e-Science Pilot projects: e-Minerals, e-Materials, e-HTPX, SABRE-R, ETF, NGS (soon?), CCLRC Facilities, etc.
14 Examples of IeSE Portal Interfaces HPCPortalThis isHPCPortal and dataportal, we could include SPP here as wellDataPortal
15 Examples of Activites: 2 Sakai Collaborative framework for higher education institutions to develop and share open source software.Principally aimed at educational portal development, course management, workgroup management, etc. Adopted by U. Michigan, Indiana U., MIT, Stanford etc.Easily customised for e-Science projects, e.g. NEESGridOpen Knowledge Initiative OSID (Open Services Interface Definitions)Research support collaborative systemWorkflow engineTool portability profileFunding$4.4M in institutional staff (27 FTE)$2.4M Mellon FoundationAdditional investment through partnersBuilt on Java portlet standard JSR-168 plus CHEF v2/ uPortal v3 framework
16 Science of Collaboratories Sakai Timelines19981999200020012002200320042005SakaiNMI Grid PortalNEESGridCHEF 1CHEF 2Science of CollaboratoriesWorktools (Notes Based)WTNGCoursetools (Notes Based)CTNGSPARC
17 Examples of Activities: 3 ARDA ARDA: Architectural Roadmap towards Distributed Analysis.LCH Computing Grid Report – CERN-LCG ;Builds on existing software - e.g. AliEn portal;Assesses future user requirements for LCG application area;Build and extend Grid/ database services;Provide application frameworks, shells, APIs, interactive GUIS, portals etc.Proposed as an example component of the EGEE work programme for the EU Grid.
20 Project plan Objectives of the VRE To deploy a framework and extensible set of services developed by the e-Science and Information communities;To provide customisable portals for projects using these and other bespoke services;To develop a Grid client toolkit for application developers based on current on Grid services;To link together applications from many research domains;To put semantic, discovery and compositional interfaces in place as tools to create such a rich environment;To link active services and sources of information to generate and exploit new knowledge.Client = users (extra layer on top of existing grid client software) to make it more usefulActive service include instrumentsGlobus 2 is command lineProject plan
21 Scoping a VRE Project: Phase I (year 1) £10k to perform a comprehensive review of research requirements and initial tests of alternative software;£100k to do some critical ground work and provide some support for others who want to use portals e.g. Sakai.Critical Ground work:Sakai may already be the front runner, UK could become founder member ($10k p.a. for 3 years);Extend existing portals for NGS (JCSR clusters);Integrate AGN and video delivery portlets (based on current work with Geoffrey Fox) , enable joint working on documents presentations etc.Extend CHEF functionality to create testbed, with HPCPortal services, etc.
22 Enhancing the CHEF Collaborative Environment We have already added video conferencing for joint working on the same document;Will link into AGN and other portlets (collaboration with Geoffrey Fox, Indiana).
23 Scoping a VRE Project: Phase II (year 2) Builds on phase I;£300k would get more ground work and establish links to other resources, e.g. RDN via SPP portal etc…£600k would get a foot in the door with international partnerships and technical contributions to activities such as Sakai;Framework support for VRE and VLE;Additional customised support for users of NGS.Use open source software and standards such as JSR-168 and WSRP. Different groups may go different ways but software can still be shared. JISC may choose to extend scoping study and small-scale demonstrator based on requirements collection and prototyping such as currently being carried out at Daresbury and Lancaster. It is already becoming clear that the Sakai framework may be the front runner.
24 Scoping a VRE Project: Phase III (year 3) Builds on phase II;£X gets a functional e-Science VRE - scoping study will determine X;New services and clients customised and re-usable for UK projects;Integrate JISC IE and e-Science/ GridPP Grids;Includes some VLE functionality;Plug and play for diverse community requirements;Extendable, depending on user feedback, e.g. text mining;Ensure contribution to standards and components to worldwide fora, e.g. GGF, ???.This work would establish an operational framework and suite of tools with a UK “stamp”. It would consolidate e-Science and Information Env. work and allow contribution of new tools.
25 Possible functionality/ content of a VRE Link portals together using web services for remote portlets. Mathew Dovey, Oxford explains the basic principles..
26 "Best of" Refactoring Possible VRE Timelines Converge with EGEE Jan 04Jan 05Jan 06Dec 06Converge with EGEESakai source availableActivity: Maintenance &Transition from a project to a communityLancasterCHEF frameworkReDReSSDaresburyIeSE frameworkHPCPortal, etc.DataPortalGROWLBristol, Oxford, BathSPP PortalAccess GridE-Science GridTools and resourcesNational Grid ServiceLinks to EGEEGridPPPhase IIVRE 1.0 ReleaseTool Portability ProfileFrameworkServices-based PortalRefined OSIDs & implementationsVRE ToolsComplete CMSCollaborationsBasic Grid toolsCross sesource searchesSupport for VLEPhase IIIVRE 2.0 ReleaseTool Portability ProfileFrameworkServices-based PortalVRE ToolsComplete CMSWorkflowResearch ToolsAuthoring ToolsAdvanced search toolsAdvanced Grid tools"Best of"RefactoringThis slide builds to show the IP contributions of the partners and then the two years of the project towards the releases.Activity: Ongoing implementation work at local institutions…Link to SAKAI ActivityArchitecting for JSR-168 Portlets, Refactoring “best of” features for toolsConforming tools to Tool Portability ProfileDevelop a VRE frameworkPrimary VRE ActivityRefining VRE Framework, Tuning and conforming additional toolsIntensive community building/training
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