GGF-16 Athens Production Grid Computing in the UK Neil Geddes CCLRC Director, e-Science.
Stephen Pickles Technical Director, Grid Operations Support Centre University of Manchester Neil...
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Transcript of Stephen Pickles Technical Director, Grid Operations Support Centre University of Manchester Neil...
Stephen PicklesTechnical Director, Grid Operations Support Centre
University of Manchester
Neil Geddes CCLRC Head of e-Science
Director of the UK Grid Operations Support Centre
GOSC VisionThis UK Grid Operation Support Centre is a distributed “virtual centre” providing deployment and operations support for the UK e-Science programme. The centre is a collaboration of CCLRC, the University of Manchester, the University of Oxford, the University of Edinburgh and the White Rose Grid at the University of Leeds. The core of the GOSC is built around operation of the National Grid Service (NGS). The GOSC will support UK services for user authentication, user authorization and project organization, credential management, resource discovery, access portals to facilitate collaborative research and resource sharing across the UK and internationally.
The principal roles of the GOSC (as defined in the original call) include:
– Middleware deployment– Central grid service support– General User support and helpdesk– Network services– Grid Security – User and Administrator support– Interoperability and collaboration with international projects, e.g.
EGEE and TeraGrid
UK Core e-Science programme - Situation Today
* LeedsManchester *
* OxfordRAL *
Level-2 Grid
National Grid Service
* DL
NGS “Today”
Projectse-Mineralse-MaterialsOrbital Dynamics of GalaxiesBioinformatics (using BLAST) GEODISE projectUKQCD Singlet meson projectCensus data analysis MIAKT projecte-HTPX project.RealityGrid (chemistry)
Users LeedsOxfordUCLCardiffSouthamptonImperialLiverpoolSheffieldCambridgeEdinburghQUBBBSRCCCLRC.
InterfacesOGSI::LiteOGSI::LiteWSRF::LiteWSRF::Lite
GOSC Timeline
Q2 Q4 Q2 Q3Q1Q4Q3Q2Q1Q3
2004 20062005
EGEE gLite alpha release
gLite release 1
OMII release
NGS Expansion(Bristol, Cardiff…)
OGSA-DAI
WS plan
NGS ProductionService
NGS WS Service
EGEE gLite releaseOMII Release
NGS Expansion
WS2 plan
NGS WS Service 2
“Tomorrow”
Web Services based National Grid Infrastructure
UofA
HPCx
UofD
GOSC
NGS Core Nodes: Host core services, coordinate integration, deployment and support+free to access resources for all VOs. Monitored interfaces + services
NGS Sites: Integrated with NGS, some services/resources available for all VOs Monitored interfaces + services
NGS Connected Sites: Integrated with NGS, support for some VO’sMonitored interfaces (+security etc.)
RAL Oxford
LeedsMan. CSAR
UofB
UofC
CommercialProvider
PSRE
GOSC Roles UK Grid Services
National Services Authentication, authorisation, certificate management, VO
management, security, network monitoring, help desk + support centre.
NGS Services Job submission, simple registry, data transfer, data access and
integration, resource brokering, monitoring and accounting, grid management services, workflow, notification, operations centre.
NGS core-node Services CPU, (meta-) data storage, key software
Services to be coordinated with others (eg OMII, NeSC, LCG):
Integration testing, compatibility & Validation Tests, User Management, training
Administration: Policies and acceptable use SLA’s, SLD’s Coordinate deployment and Operations
SRB serviceOGSA-DAI service
Authentication, authorisation, certificate management, VO management, security.
Helpdesk
FAQ
UKCampus
andother Grids
GOSC + ETF
• Core of GOSC built around experience in deploying and running National Grid Service (NGS) – Support service
• Important to coordinate and integrate this with deployment and operations work in EGEE, LCG and similar projects. – e.g. EGEE – low level services, CA, GOC, CERT...
• Focus on deployment and operations, NOT development.
OMII
ETF
NGSOther software sources Software with proven
capability & realistic deployment experience
‘Gold’ services
Prototypes &specifications
Feedback & future requirements
EGEE…
Deployment/testing/advice
Operations
ETF• Registry
– A freely available UDDI implementation has been deployed/tested between 4 sites
– Experience passed on to the GRIMOIRES OMII project.
• Secure Flocking of Condor– Condor pools at 4 sites have been flocked together, through firewalls– authentication through use of X.509 certifcates– OMII test bed
• Portals– Support access to the NGS.– Tied in with JISC VRE developments
• Evaluations– InnerGrid - Contractual issues delayed start - just started.– OMII – Start later this month– GT4 – Start later this month– gLite – start next month
Joining the NGS
Two levels of membership, affiliation and partnership:
1. Affiliation
2. Partnership
Assumes NGS brand is valuable
AffiliationAffiliates commit to:• running NGS-compatible middleware
– as defined in NGS Minimum Software Stack– this means users of affiliate’s resources can access these using
same client tools they use to access NGS• a well-defined level of service and problem referral
mechanisms– SLD approved by NGS Management Board and published on
NGS web-site• providing technical, administrative, and security (CERT)
contacts• providing an account and mapping for daily compliance
tests (GITS++)• accept UK e-Science certificates• maintain baseline of logs (gatekeeper, batch system) to
assist problem resolution
Partnership
Partners commit to same as affiliates, plus:• making significant resources available to NGS users
– creation of accounts/mappings– in future, VO support, pool accounts, etc
• recognise additional CAs with which UK e-Science programme has reciprocal agreements
• publish/provide additional information to support resource discovery, brokering– BDII (MDS), populating GLUE schema– job level accounting– additional monitoring: load, availability
• compilation environment on computational resources
BenefitsAffiliation:• NGS brand
– certified NGS-compatible• better integrated support for local users who also
access NGS facilities• assistance/advice in maintaining NGS-
compatibility over time
Partnership:• higher brand quality• representation on NGS management board
– either direct, or through regional or functional consortia
Where Next?
• Make the NGS work– Resource Broker/scheduler– VO/Project support– Monitoring and Accounting
• Compatibility with EGEE• Define and agree criteria for success• Web Services
• National e-Infrastructure– Science and Innovation strategy 2004-2014
Timeline
Q2 Q4 Q2 Q3Q1Q4Q3Q2Q1Q3
2004 20062005
EGEE gLite alpha release
gLite release 1
OMII release
NGS Expansion(Bristol, Cardiff…)
OGSA-DAI
WS plan
NGS ProductionService
NGS WS Service
EGEE gLite releaseOMII Release
NGS Expansion
WS2 plan
NGS WS Service 2
Position Statement
• Relatively homogenous core, free at point of use
• + National HPC services• grow through affiliates and partners• wide range of users and applications
– from task farming to high-end parallel jobs, computational steering, distributed computation
• advance reservation, co-scheduling, incoming connections
– data (OGSA-DAI, SRB) and compute (GT2/VDT)
Position Statement
• Alignment/compatibility with EGEE, GridPP, TeraGrid etc important
• Some shared infrastructure with GridPP already
• Have responsibilities to wider UK e-Science constituency too
• Decision inputs: ETF, OMII, EGEE, GGF, TeraGrid,
• How to maintain compatibility over time, while expanding functionality and embracing Web services?
The End