Geoff Cawood, Terry Sloan Edinburgh Parallel Computing Centre (EPCC) Telephone: EPCC Sun Data and Compute Grids NeSC Review 18 March 2004

Overview Description and Aims Project Status Technical Achievements Dissemination/Exploitation Future Plans

Description and Aims

Project Goal “Develop a fully Globus-enabled compute and data scheduler based around Grid Engine, Globus and a wide variety of data technologies” Partners – Sun Microsystems – National e-Science Centre represented by EPCC Timescales – 23 (+2) months duration – Due to project staff involvement in ODDGenes – Start Feb 2002, end Feb 2004 Grid Engine open source distributed resource management (DRM) system Globus integration enables sharing of resources amongst collaborating enterprises

Project Scenario If enterprises A and B could expose some of their machines to each other across the internet … Both A and B could enjoy throughput efficiency improvements Large gains when one enterprise is busy and the other is idle Grid Engine abcd efgh efgh abcd AB Users (A) Users (B)

Functional Aims What does the project goal mean in practice? Identify five key functional aims 1. Job scheduling across Globus to remote Grid Engines 2. File transfer between local client site and remote jobs 3. File transfer between any site and remote jobs 4. Allow 'datagrid aware' jobs to work remotely 5. Data-aware job scheduling Derived from questioning existing Grid Engine users during Requirements WP

Project Status

Workpackages WP 1: Analysis of existing Grid components – WP 1.1: UML analysis of core Globus 2.0 – WP 1.2: UML analysis of Grid Engine – WP 1.3: UML analysis of other Globus 2.0 – WP 1.4: Globus toolkit V3.0 Investigations – WP 1.5: Data Technologies Investigations WP 2: Requirements Capture & Analysis WP 3: Prototype Development WP 4: Hierarchical Scheduler Design WP 5: Hierarchical Scheduler Development

Deliverables WP 3: Prototype Development (FINISHED) D3.1 Prototype Development: Requirements D3.2 Prototype Development: Design D3.3 Prototype Development: Test plan D3.4 Prototype Development: TOG software D3.6 Prototype Development: How-To WP 4: Hierarchical Scheduler Design (FINISHED) D4.1 JOSH Functional Specification D4.2 JOSH Systems Design WP5: Hierarchical Scheduler Development (FINISHED) JOSH User Guide JOSH Software JOSH Client Install Guide JOSH Server Install Guide JOSH Known Problems & Solutions All WPs finished Deliverables available from project public web site Or from the Grid Engine community web site (for software) WP 1: Analysis of existing Grid components (FINISHED) – D1.1 Analysis of Globus Toolkit V2.0 – D1.2 Grid Engine UML Analysis – D1.3 Globus Toolkit 2.0 GRAM Client API Functions – D1.4 Globus 3.0 Features and Use – D1.5.2 Datagrids In Practice – D1.5.3 GridFTP – D1.5.4 OGSA-DAI – D1.5.5 Storage Resource Broker (SRB) WP 2: Requirements Capture & Analysis (FINISHED) – D2.1 Use cases and requirements – D2.2 Questionnaire Report

Technical Achievements "From Sun's perspective, the SunDCG project has been tremendously successful. Together, EPCC and Sun have produced very high quality software and documents, providing real added value to Sun's Grid Engine suite and addressing some of the key issues in robust and usable Grid middleware." Fritz Ferstl, Sun Microsystems

TOG (Transfer-queue Over Globus) Grid Engine abcd e efgh d Site A Site B Globus 2.2.x User A User B – WP 3 deliverable – prototype compute scheduler – Integrates GE and Globus 2.2.x/2.4 (Software library) – Supply GE execution methods (starter method etc.) to implement a 'transfer queue' which sends jobs over Globus to a remote GE – GE complexes used for configuration – Globus GSI for security, GRAM for interaction with remote GE – GASS for small data transfer, GridFTP for large datasets – Written in Java - Globus functionality accessed through Java COG kit Transfer queue

TOG Software Functionality 1. Job scheduling across Globus to remote Grid Engines 2. File transfer between local client site and remote jobs  Add special comments to job script to specify set of files to transfer between local site and remote site 4. Allow 'datagrid aware' jobs to work remotely  Use of Globus GRAM ensures proxy certificate is present in remote environment Absent 3. File transfer between any site and remote jobs  Files are transferred between remote site and local site only 5. Data-aware job scheduling

TOG Software Pros – Simple approach – Usability ● Existing Grid Engine interface ● Only addition is Globus certificate for authentication/authorisation – Remote administrators still have full control over their resources Cons – Low quality scheduling decisions ● State of remote resource – is it fully loaded? ● Ignores data transfer costs – Scales poorly - one local transfer queue for each remote queue – Manual set-up ● Configuring the transfer queue with same properties as remote queue Java virtual machine invocation per job submission

JOSH (JOb Scheduling Hierarchically) Developing JOSH software Address the shortcomings of TOG Incorporate Globus 3 and grid services WP 5 deliverable - compute/data scheduler Adds a new 'hierarchical' scheduler above Grid Engine hiersched submit_ge  Takes GE job script as input (embellished with data requirements)  Queries grid services at each compute site to find best match and submits job User Job Spec Hierarchical Scheduler hiersched user Interface Grid Engine Grid Service Layer Input Data Site Output Data Site Grid Engine Grid Service Layer

JOSH Pros Satisfies the 5 functionality goals Fulfills the project goal Remote administrators still have full control over their GEs Makes use of existing GE functionality eg. 'can run' Cons Latency in decision making Not so much 'scheduling' as 'choosing' Grid Engine specific solution

Dissemination/Exploitation

Presentations Ernst & Young, WestInfo Services, Strategy & Performance Associates, SingTel Optus, Executive Briefing Centre, Curtin Business School, Curtin University of Technology, Perth Australia, February 24 th, 26 th, Curtin Business School Information Systems Seminar, Curtin University of Technology, Perth, Australia, February 20 th 2004 GlobusWORLD 2004, San Francisco, USA, January 22 nd, 2004 White Rose Grid, EPCC Sun Data & Compute Grids, UCL Workshop, York University, November 11 th, 2003 Sun HPC Consortium, Phoenix, USA, November 2003 Open Issues in Grid Scheduling, National e-Science Centre, Edinburgh, UK, October 21st nd Grid Engine Workshop, Regensburg, Germany, September SunLabs Europe, Edinburgh, September 1 st, 2003 Sun HPC Consortium, Grid and Portal Computing SIG, Heidelberg, Germany, June 21st 2003 Resource Management and Scheduling for the Grid, National e-Science Centre, Edinburgh, UK, February 13th 2003 Sun HPC Consortium, Grid and Portal Computing SIG, Baltimore, USA, November 15th 2002 EPCC Sun Data and Compute Grids / White Rose Computational Grid Meeting, EPCC, Edinburgh, UK, November 7th 2002 Sun HPC Consortium, Grid and Portal Computing SIG, Glasgow, UK, July 18th 02 Grid Engine Workshop, Regensburg, Germany, April

Software Take-up Transfer-queue Over Globus (TOG) take–up includes ODD-Genes  Uses SunDCG TOG and OGSA-DAI to demonstrate a scientific use for the grid (bioinformatics), presented at –UK All Hands Meeting 2003 in Sept 2003 –Supercomputing 2003 in Nov 2003 on Sun, UK e-Science and Globus Alliance booths –Poster/Demo at Globusworld 2 –Numerous visitors to Edinburgh University INWA  Uses Sun DCG TOG, OGSA-DAI and FirstDIG browser to demonstrate data mining of commercial bank and telco data over the grid with Curtin Business School, Perth Australia Liverpool University’s ULGrid  Using Sun DCG TOG to enable users to access resources from various departments Raytheon Inc (USA)  Use SunDCG TOG in grid evaluations Sun Singapore

Software Take-up Job Scheduling Hierarchically (JOSH) known interest includes White Rose Grid Raytheon Inc. Academic Technology Services at UCLA School of Pharmaceutical Sciences at the University of Nottingham Texas Advanced Computing Center Forecast Systems Laboratory of NOAA

Downloads 10,300 document downloads between Feb 27 th 2003 and Feb 26 th 2004 No specific figures on TOG/JOSH software downloads Hosted at Grid Engine community web site Figures are not available BUT from EPCC web site … > 400 TOG Requirements document > 400 JOSH Functional Specification > 300 JOSH Systems design JOSH documents only available since *Feb 3 rd 2004* Community Scheduler Framework Does not have data aware scheduling Platform have asked if they could get the JOSH algorithms included So LOTS of interest in JOSH

Future Plans

Effort budget ran out in February 2004 Sun will integrate TOG/JOSH into Grid Engine source from March 2004 Open Source development via Grid Engine community web site If funds made available WS-RF update Access to other DRMS eg Loadleveller, LSF WS-Agreement compliance, JSDL Further functionality All are straightforward due to good design in JOSH "I just recommended TOG and JOSH as a starting point for a partner who wants to build Grid middleware for nuclear plants." Fritz Ferstl, Sun Microsystems

Demo