Robin Middleton RAL/PPD DG Co-ordination Rome, 23rd June 2001.

Robin MiddletonRAL/PPD

DG Co-ordinationRome, 23rd June 2001

GridPP e-Science Presentation Slide 2

GridPP Collaboration Meeting

1st GridPP Collaboration Meeting - Coseners House - May 24/25 2001


GridPP History

Collaboration formed by all UK PP Experimental Groups in 1999 to submit £5.9M JIF bid for Prototype Tier-1 centre at RAL (later superceded)

Added some Tier-2 support to become part of PPARC LTSR - “The LHC Computing Challenge” Input to SR2000

Formed GridPP in Dec 2000 included CERN, CLRC and UK PP Theory Groups

From Jan 2001 handling PPARC’s commitment to EU DataGrid

UKUK


Proposal Executive Summary

• £40M 3-Year Programme• LHC Computing Challenge• = Grid Technology• Five Components:

– Foundation– Production– Middleware– Exploitation– Value-added

Exploitation• Emphasis on Grid Services

and Core Middleware

• Integrated with EU DataGrid, PPDG and GriPhyN

• Facilities at CERN, RAL and up to four UK Tier-2 sites

• Centres = Dissemination• LHC developments

integrated into current programme (BaBar, CDF, D0, ...)

• Robust Management Structure

• Deliverables in March 2002, 2003, 2004


GridPP Component Model

Foundation

Value-added

Production

Middleware

Exploitation

Component 1: Foundation

The key infrastructure at CERN and within the UK

Component 2: Production

Built on Foundation to provide an environment for experiments to use

Component 3: Middleware

Connecting the Foundation and the Production environments to create a functional Grid

Component 4: Exploitation

The applications necessary to deliver Grid based Particle Physics

Component 5: Value-Added

Full exploitation of Grid potential for Particle Physics

£21.0M

£25.9M


Major Deliverables

Prototype I - March 2002• Performance and scalability testing of components• Testing of the job scheduling and data replication software from

the first DataGrid release.

Prototype II - March 2003• Prototyping of the integrated local computing fabric, with

emphasis on scaling, reliability and resilience to errors. • Performance testing of LHC applications. Distributed HEP and other

science application models using the second DataGrid release.

Prototype III - March 2004• Full scale testing of the LHC computing model with fabric

management and Grid management software for Tier-0 and Tier-1 centres, with some Tier-2 components.


First Year DeliverablesEach Workgroup has detailed deliverables. These will be refined each year and build on the successes of the previous year.

The Global Objectives for the first year are:• Deliver EU DataGrid Middleware (First prototype [M9])• Running experiments to integrate their data management

systems into existing facilities (e.g. mass storage)• Assessment of technological and sociological Grid analysis

needs• Experiments refine data models for analyses• Develop tools to allow bulk data transfer• Assess and implement metadata definitions• Develop relationships across multi-Tier structures and countries• Integrate Monte Carlo production tools• Provide experimental software installation kits• LHC experiments start Data Challenges• Feedback assessment of middleware tools


GridPP Organisation

Software development organised around a number of Workgroups

Hardware development organised around a number Regional Centres

• Likely Tier-2 Regional Centres

• Focus for Dissemination and Collaboration with other disciplines and Industry

• Clear mapping onto Core Regional e-Science Centres


GridPP Workgroups

A - Workload Management

Provision of software that schedule application processing requests amongst resources

B - Information Services and Data Management

Provision of software tools to provide flexible transparent and reliable access to the data

C - Monitoring Services

All aspects of monitoring Grid services

D - Fabric Management and Mass Storage

Integration of heterogeneous resources into common Grid frameworkE - Security

Security mechanisms from Certification Authorities to low level components

F - Networking

Network fabric provision through to integration of network services into middleware

G - Prototype Grid

Implementation of a UK Grid prototype tying together new and existing facilities

H - Software Support

Provide services to enable the development, testing and deployment of middleware and applications at institutes

I - Experimental Objectives

Responsible for ensuring development of GridPP is driven by needs of UK PP experiments

J - Dissemination

Ensure good dissemination of developments arising from GridPP into other communities and vice versa

Technical work broken down into several workgroups - broad overlap with EU DataGrid


GridPP and CERN

UK involvement through GridPP will boost CERN investment in key areas:– Fabric management software– Grid security– Grid data management– Networking– Adaptation of physics applications– Computer Centre fabric (Tier-0)

For UK to exploit LHC to the full:Requires substantial investment at CERN to support LHC computing.


GridPP Management Structure


Management Status

The Project Management Board (PMB)

The Executive board chaired by Project Leader - Project Leader being appointed. Shadow Board in operation

The Collaboration Board (CB)

The governing body of the project - consists of Group Leaders of all Institutes - established and Collaboration Board Chair elected

The Technical Board (TB)

The main working forum chaired by the Technical Board Chair - interim task force in place

The Experiments Board (EB)

The forum for experimental input into the project - nominations from experiments underway

The Peer Review Selection

Committee (PRSC)

Pending approval of Project

The Dissemination Board (DB)

Pending approval of Project


GridPP is not just LHC

UK


Tier1&2 Plans

• RAL already has 300 cpus, 10TB disk, and STK tape silo which can hold 330TB

• Install significant capacity at RAL this year to meet BaBar TierA Centre requirements

• Integrate with worldwide BaBar work• Integrate with DataGrid testbed• Integrate Tier1 and 2 within GridPP• Upgrade Tier2 centres through SRIF (UK university

funding programme)


Tier1 Integrated Resources

0

20

40

60

80

100

120

2001 2002 2003

kSI95

disk TB

tape TB/10


Liverpool

• MAP - 300 cpus + several TB of disk – delivered simulation for LHCb and others for

several years• Upgrades of cpus and storage planned for 2001

and 2002– currently adding Globus – develop to allow analysis work also


Imperial College

• Currently– 180 cpus– 4TB disk

• 2002– adding new cluster in 2002– shared with Computational Engineering– 850 nodes– 20TB disk– 24TB tape

• CMS, BaBar, D0


Not Fully Installed

Lancaster

Worker

Worker

196 Worker CPUs

Switch

Controller Node

Switch500 GB

Bulkserver

100 MB/s Ethernet

Tape LibraryCapacity ~ 30 TB

k£11/30 TB

Worker

Controller Node

500 GB Bulkserver

1000 MB/s Ethernet

Fiber

Finalizing Installation of Mass Storage System ~ 2 Months


Lancaster

• Currently D0 – analysis data from FNAL for UK– simulation

• Future– upgrades planned– Tier2 RC– Atlas-specific


• Tendering now• 128 CPU at Glasgow• 5 TB Datastore + server at Edinburgh• ATLAS/LHCb• Plans for future upgrades to 2006• Linked with UK Grid National Centre

ScotGrid


Network

• UK Academic Network, SuperJANET entered phase 4 in 2001

• 2.5GB backbone, December 2000-April 2001• 622Mbit to RAL, April 2001• Most MANs have plans for 2.5GB on their

backbones• Peering with GEANT planned at 2.5GB


Wider UK Grid

• Prof Tony Hey leading Core Grid Programme• UK National Grid

– National Centre – 9 Regional Centres

• Computer Science lead• includes many sites with PP links

– Grid Support Centre (CLRC)– Grid Starter Kit

• vesion 1 based on Globus, Condor, ......• Common software

• e-science Institute• Grid Network Team• Strong Industrial Links• All Research Areas have their own e-science plans


Summary

• UK has plans for a national grid for particle physics– to deliver the computing for several virtual

organisations (LHC and non-LHC)• Collaboration established, proposal approved, plan in place• Will deliver

– UK commitment to DataGrid, – prototype Tier1 and 2– UK commitment to US experiments

• Work closely with other disciplines• Have been working towards this project for ~ 2 years

building up hardware• Funds installation and operation of experimental testbeds,

key infrastructure, generic middleware and making application code grid aware


The End


UK StrengthsWish to build on UK strengths -• Information Services• Networking• Security• Mass Storage

UK Major Grid Leadership roles -• Lead DataGrid Architecture Task Force (Steve Fisher)• Lead DataGrid WP3 Information Services (Robin Middleton)• Lead DataGrid WP5 Mass Storage (John Gordon)•Strong Networking Role in WP7 (Peter Clarke, Robin Tasker)

• ATLAS Software Coordinator (Norman McCubbin)• LHCb Grid Coordinator (Frank Harris)

Strong UK Collaboration with Globus• Globus people gave 2 day tutorial at RAL to PP community• Carl Kesselman attended UK Grid Technical meeting • 3 UK people visited Globus at Argonne

Natural UK Collaboration with US PPDG and GriPhyN


• 8x80cpu farms• 10 sites with 12TB disk and Suns• simulation• data mirroring from SLAC - Kanga, Objectiity• data movement and mirroring across UK• data location discovery across UK - mySQL• remote job submission - Globus and PBS• common usernames across UK - GSI gridmapfiles

• Find data - submit job to data - register output• BaBar planning a distributed computing model

– TierA centres

BaBar


CDF

• Similar model to BaBar with disk and cpu resources at RAL and universities plus farm for simulation.

• Development of Grid access to CDF databases.• Data replication from FNAL to UK and around UK• Data Location Discovery through metadata


D0

• Large data centre at Lancaster• ship data from FNAL to UK• simulation in UK and ship data back to FNAL• Gridify SAM access to data

– data at FNAL and Lancaster

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Robin Middleton RAL/PPD DG Co-ordination Rome, 23rd June 2001.

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