04/19/23 OSG at CANS 1

Open Science Grid

Ruth Pordes

Fermilabhttp://www.opensciencegrid.org

2OSG at CANS

What is OSG?

Shared Common Distributed Infrastructure Supporting access to contributed Processing, disk & tape resources Over production and research networks and Open tor use by Science

Collaborations

Shared Common Distributed Infrastructure Supporting access to contributed Processing, disk & tape resources Over production and research networks and Open tor use by Science

Collaborations

3OSG at CANS

96 Resources across production & integration infrastructures

20 Virtual Organizations +6 operations

Includes 25% non-physics.

~20,000 CPUs (from 30 to 4000)

~6 PB Tapes

~4 PB Shared Disk

Snapshot of Jobs on OSGs

Sustaining through OSG submissions:

3,000-4,000 simultaneous jobs .

~10K jobs/day

~50K CPUhours/day.

Peak test jobs of 15K a day.

Using production & research networks

OSG Snapshot

4OSG at CANS

OSG - a Community Consortium • DOE Laboratories and DOE, NSF, other, University Facilities

contributing computing farms and storage resources, infrastructure and user services, user and research communities.

• Grid technology groups: Condor, Globus, Storage Resource Management, NSF Middleware Initiative.

• Global research collaborations: High Energy Physics - including Large Hadron Collider, Gravitational Wave Physics - LIGO, Nuclear and Astro Physics, Bioinformatices, Nanotechnology, CS research….

• Partnerships: with peers, development and research groups Enabling Grids for EScience (EGEE),TeraGrid, Regional & Campus Grids (NYSGrid, NWICG, TIGRE, GLOW..)

• Education: I2U2/Quarknet sharing cosmic ray data, Grid schools…

1999 2000 2001 2002 20052003 2004 2006 2007 2008 2009

PPDG

GriPhyN

iVDGL

Trillium Grid3 OSG

(DOE)

(DOE+NSF)(NSF)

(NSF)

5OSG at CANS

OSG sits in the middle of an environment of a Grid-of-Grids from Local to Global InfrastructuresInter-Operating and Co-Operating Grids: Campus, Regional, Community,

National, International. Virtual Organizations doing Research & Education.

6OSG at CANS

Overlaid by virtual computational environments of single to large groups of researchers local to worldwide

7OSG at CANS

OSG Core Activities • Integration: software, systems and end-to-end

environments. Production, integration, test infrastructures.• Operations: common support mechanisms, security

protections, troubleshooting.• Inter-Operation: across administrative and technical

boundaries.

• OSG Principles and Characteristics Guaranteed and opportunistic access to shared resources. Heterogeneous environment. Interfacing and Federation across Campus, Regional, national/international

Grids preserving local autonomy New services and technologies developed external to OSG.

Each activity includes technical work with Collaborators in the US

and elsewhere.

Each activity includes technical work with Collaborators in the US

and elsewhere.

8OSG at CANS

OSG Middleware

Infrastructure

Applications

VO Middleware

Core grid technology distributions: Condor, Globus, Myproxy: shared with

TeraGrid and others

Virtual Data Toolkit (VDT) core technologies + software needed by stakeholders:many components shared with

EGEE

OSG Release Cache: OSG specific configurations, utilities

etc.

HEP

Data and workflow management etc

Biology

Portals, databases etc

User Science Codes and Interfaces

Existing Operating, Batch systems and Utilities.

Astrophysics

Data replication etc

9OSG at CANS

What is the VDT?• A collection of software

Grid software: Condor, Globus and lots more Virtual Data System: Origin of the name “VDT” Utilities: Monitoring, Authorization, Configuration Built for >10 flavors/versions of Linux

• Automated Build and Test: Integration and regression testing.

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VDT 1.1.x VDT 1.2.x VDT 1.3.x

VDT 1.0Globus 2.0bCondor-G 6.3.1

VDT 1.1.3, 1.1.4 & 1.1.5, pre-SC 2002

VDT 1.1.8Adopted by LCG

VDT 1.1.11Grid2003 VDT 1.2.0

VDT 1.3.0

VDT 1.3.9For OSG 0.4

VDT 1.3.11Current ReleaseMoving to OSG 0.6.0

VDT 1.3.6For OSG 0.2

• An easy installation: Push a button, everything just works. Quick update processes.

• Responsive to user needs: process to add new components

based on community needs.

• A support infrastructure: front line software support, triaging between users and software

providers for deeper issues.

10OSG at CANS

Middleware to Support Security

• Identification and Authorization based on X509 extended attribute certificates. In common with Enabling Grids for EScience (EGEE).

• Address needs of Roles of groups of researchers for control and policies of access.

• Operational auditing across core OSG assets.

11OSG at CANS

OSG Active in Control and Understanding of Risk

• Security Process modelled on NIST Management, Operational, Technical controls

• Security Incidents: When not If. Organizations control their own activities: Sites,

Communities, Grids. Coordination between operations centers of participating infrastructures.

End-to-end troubleshooting involves people, software and services from multiple infrastructures & organizations

12OSG at CANS

High Energy Physicists Analyze today’s Data Worldwide

PB/mo = < 3 Gb/s>

High impact path

Production path

University of Science and Technology of China

University of Science and Technology of China

13OSG at CANS

Physics needs in 2008:

• 20-30 Petabyte tertiary automated tape storage at 12 centers world-wide physics and other scientific collaborations.

• High availability (365x24x7) and high data access rates (1GByte/sec) locally and remotely.

• Evolving and scaling smoothly to meet evolving requirements.

• E.g. CMS computing modelTier-0

Tier-1 Tier-1

Tier-2 Tier-2

#CPU

(M SI2k)Tape

(PB/yr)Disk

(PB/yr)WAN(Gb/s)

Tier-0 1 5 5 - 10 .5 5 - 10

Tier-1 6 * 2 - 4 3 - 7 1 - 2 8 - 15

Tier-2~25 1 - .2 1 - 10

* USCMS site (Fermilab) 2x other Tier-1

Requirements

14OSG at CANS

OSG Data Transfer, Storage and Access - GBytes/sec 365 days a year

for CMS & ATLAS

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

Data Rates need to reach ~X3 in 1 yearData Rates need to reach ~X3 in 1 year

600MB/sec600MB/sec

~7 Tier-1s, CERN + Tier-2s~7 Tier-1s, CERN + Tier-2s

Bejing is a Tier-2 in this setBejing is a Tier-2 in this set

15OSG at CANS

Aggressive program of End to End Network performance

• Complex end-to-end routes.

• Monitoring, configuration, diagnosis.

• Automated redundancy and recovery.

16OSG at CANS

Submitting Locally, Executing Remotely:

15,000 jobs/day.

27 sites.

Handful of submission points.

+ test jobs at 55K/day.

17OSG at CANS

Applications cross infrastructures e.g.OSG and

TeraGrid

18OSG at CANS

The OSG Model of Federation

OSG A(nother)

Grid e.g. NAREGI

Service-X Service-XAdaptor between

OSG-X and AGrid-X

VO or User that acts across grids

Interface to

Service-X

Security, Data, Jobs, Operations, Information, Acccounting…

19OSG at CANS

BeforeFermiGride.g.Fermilab

User

ResourceHead Node

Workers

Astrophysics

ResourceHead Node

Workers

Common

ResourceHead Node

Workers

ParticlePhysics

ResourceHead Node

Workers

Theory Existing

CommonGateway &

Central Services

CommonGateway &

Central Services

GuestUser

Local Grid with adaptor to national grid

• Central Campus wide Grid Services• Enable efficiencies and sharing across internal farms and storage• Maintain autonomy of individual resources

Next Step: Campus Infrastructure Days - new activity OSG, Internet2 and TeraGrid

20OSG at CANS

Information & Monitoring

Storage Interfaces

Interoperation Increasing in Scope

21OSG at CANS

Summary of OSG today

• Providing core services, software and a distributed facility for an increasing set of research communities.

• Helping Virtual Organizations access resources on many different infrastructures.

• Reaching out to others to collaborate and contribute our experience and efforts.