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Grid Computing in HK Hong Kong Grid and Grid Research and Deployment 香港网格及网格技術研究及實踐 Francis C.M. Lau （劉智滿博士） (with C.L. Wang and Roy Ho) Department of Computer Science (and Information Systems) The University of Hong Kong 香港大學計算機科學系 1 HKU Systems Research Group 香港大學系統研究組 “Small“Small group,group, bigbig research”research” 雷声小，雨点大雷声小，雨点大 喊得多，做的少 金海 UU““喊得多，做的少”–”–金海 2 Agenda { The Hong Kong Grid { Grid research at HKU z InstantGrid/SLIM z JESSICA2 z G-JavaMPI z LOTS DSM z G-Pass { Conclusion 3 Hong Kong Grid 香港网格 4 HK & Grid { HK as a regional hub (香港作爲亞 洲联网的樞紐之一) { Interconnecting major cities in Asia Pacific & US { Little restrictions 谁都不管！ 5 Hong Kong Grid (HKGrid) { Goals: z To construct a grid test bed in HK { Grid R&D { Institutions, government, industry { Partners in China and Asia-Pacific z To act as gateway for grids nearby z To demonstrate key R&D outcomes { Supported by grants from the HKSAR government, HKU, etc. { http://www.hkgrid.org/ 6 HKGrid - Current Constituents Institutions Computing facilities City University of HK Service gateway 城市大學 HK Baptist University 2-way Xeon SMP x 64 浸會大學 (#300 in TOP500, 6/2003) HK University of Science and 4-way SMP cluster Technology 科技大學 The HK Institute of HPC Service gateway 高性能計算中心 The HK Polytechnic University Service gateway 理工大學 HKU – Computer Centre 2-way Xeon SMP x 128 香港大學計算中心 (#240 in TOP500, 11/2003) HKU –CS Department Pentium 4 x 300 香港大學計算機科學系 (#175 in TOP500, 11/2002) A 4 Tflop/s theoretical maximum computing power 7 HKGrid – Network Connections { Links to China National Grid (CNGrid) and Asia-Pacific Grid (ApGrid) via CERNET and APAN { Plan to connect to China Grid (if Prof. JH lets us) { Internet2 connection to the Abilene backbone at Chicago, USA { Plays the role of a gateway for the other bigger grids 8 Performance Monitoring with Ganglia URL: http://gideon.csis.hku.hk/hkgrid/9 HKGrid Launched in Cluster2003 Cluster2003 國際大會 Main Organizers of HKGrid; with Dr. Z.W. Xu of CNGrid 10 Progress { Oct-Dec 2003 z HKGrid Certificate Authority (CA) and middleware (GT and monitoring software) installed z HKGrid officially launched in Cluster2003 z Weather forecasting demo with AIST (Japan) and Kasetsart University (Thailand) z Climate simulation demo in the 5th PRAGMA { Jan-Apr 2004 z HK Supercomputing Directory released z SLIM demonstration for HK Science and Technology Parks, HK Linux Industry Association, HK Government { Ongoing work z Deploy our advanced grid platform in HKGrid z Interoperability with CNGrid, ApGrid, and other country grids 11 Research Projects with HKGrid { HKBU （浸大）: Knowledge grid, autonomous grid service composition { HKCU （中大）: Agent-based wireless grid computing { HKPU （理大）: Peer-to-peer grid, meta-scheduling, fault tolerance { HKUST （科大）: Resource allocation and scheduling, topology optimization { HKU （港大） z Computer Centre : HKU campus grid ; scientific applications running across the ApGrid z CS : Robust Speech Recognition (Dr. Q. Huo) z CS : Simulation for the DNA Shuffling Experiment (Dr. T.W. Lam) z CS : Approximate String Matching on DNA Sequences (L.L. Cheng) z CS : Whole Genome Alignment via Mutation-Sensitive Sequence Similarity (Dr. T.W. Lam) z CS : HKU Grid Point (A 863 Project: China National Grid) z CS : Asia-Pacific Grid z ETI: Modeling of Air Quality in Hong Kong (E-Business Technology Institute with the Environmental Protection Department, HKSAR) z ME: Parallel Simulation of Turbulent Flow Model (Dr. C.H. Liu, Dept. of Mechanical Engineering) 12 Other Adoptions in Hong Kong { Local financial institutes to model foreign exchange market and forecast exchange rates { The Environmental Protection Department has attempted to investigate the inter-connections of air pollution mosaic through numerical simulation (since 2001) { Government plans to harness grid technologies to utilize idle PCs during off- hours { Applications!!!! 13 Grid Facilities at HKU 港大网格設施 14 HKU Grid Point: Grid and Cluster Software Remote job Grid middleware submission - Globus Toolkit (GT) 2.0, 2.4, 3.0.1 Gatekeeper gideon.csis.hku.hk Job scheduling - OpenPBS 2.3.16 - Maui 3.2.5 Local Job Scheduler Programming -HPF, Fortran 90 -C, C++, Java with MPI -JESSICA2 (HKU) CS CS CS CC Gideon Ostrich Srgdell HPCPower Communication Lib - MPICH-G2 1.2.3 IPC / Network communication 15 Computer Centre - HPCPOWER IBM 2-way Xeon x 128; Ranked #240 in TOP500, 11/2003 16 CS Department – “Self-Made” Gideon 300 PC cluster Pentium x 300; Ranked #340 (#175) in TOP500, 6/2003 (11/2002) 17 HKU in CNGrid (863 Project) China National Grid Participants 中科院计算所开发的网 格系统软件已将计算所 上海超级计算中心 、华中科技大学 与香港 中科院计算所 大学网格节点连接在一 起，通过VEGA_GOS … 香港大学 (CS) 西安交通大学 中国科技大学 国防科技大学 中科院应用物理所 清华大学 Supporting software: VEGA (织女星)GOS: dynamic service deployment, single-sign-on, data replication, and performance monitoring. Developed by Institute of Computing Technology, Chinese Academy of Sciences V.1.0 released 8 18 ApGrid Test Bed – Weather Forecasting 80 160 32 16 32 40 19 Visits, demos, making noises … (2003) 20 Grid Research at HKU 香港大學网格研究項目 21 Grid Computing : A Refresher CPU power, Memory, { Computing as “utilities”, like Network, electricity, water, etc. Storage… { Advantages: Data.. z Cost-effectiveness Services.. z Platform extensibility z Convenience (Plug & Play) Resource providers Grid Computing Access to remote resources via standard protocols for cross-domain End users collaboration 22 Potential Applications { HPC z High-energy/particle physics, environmental science, bioinformatics, molecular modeling, drug design, neuroscience, weather forecasting, aerospace design, earthquake simulation, … { Grid Services z Video-conferencing, e-learning, supply chain mgmt., automobile manufacturing, OLTP front ends, CRM, financial analysis… and many others after convergence of OGSA and WS (i.e., WSRF) 23 Our Position { Will all these apps be naturally supported by interconnecting the computing resources? { Spec. of “commodity” grid platforms ≠ ideal execution environments for apps { Grid middleware to bridge the gap { Existing middleware provides the mechanisms to access remote resources, but does not address many fundamental problems { We aim to derive solutions to these problems, and incorporate them to form an advanced grid platform (AGP) 24 Commodity Grids Difficult to Use { Heterogeneous & dynamic z Load balancing z How to distribute the work? z Meta-scheduling vs. local autonomy { Poor programmability { Inconsistent software configuration z OS, library, middleware, … z Collective computation? { Complicated security management z O(nm) for n grid points and m users/apps z User-to-host authentication? 25 HKU’s Advanced Grid Platform Goals 我們的目標 On-demand Flexible grid execution construction environments Advanced Grid Platform “Grid-friendly” Consolidated programming security Load balancing 26 Core Components/Projects Load balancing, G-JavaMPI G-JavaMPI work (re-)distribution mechanisms SSI for programmability. JESSICA2JESSICA2 LOTSLOTS JESSICA: LAN-based distributed JVMs LOTS: WAN-based DSM for grid Grid-wide VO-centric security G-PassG-Pass InstanInstantGridtGrid On-demand grid construction Execution environments mgmt., SLIM SLIM dissemination mechanisms Production use Experimental Prototype stage 27 InstantGrid on SLIM On-demand construction of grid points with customized execution environments 28 SLIM – Single Linux System Mgmt. { A network service for managing and constructing EE’s, and disseminating them to remote computing platforms { Grid computing decouples computing platforms (resources) and computing logic (applications) { I.e., a single platform can run completely different applications { Problem: different applications demand different execution environments (OS, shared libraries, supporting apps, etc.) { The troubles of managing execution environments (EE’s) on the resource provider’s side offset the benefits of resource sharing 29 SLIM – System design “On demand” “Get what you need” How does it work? { A node sends a EE specification across the network to find the Boot server { Boot server delivers the requested Linux kernel { Image server constructs an EE by collecting shared libraries, user data, etc. { Linux kernel boots, and contacts the Image Server to “mount”the EE via a file synchronization protocol such as NFS { Aggressive caching techniques are deployed to optimize performance 30 InstantGrid: On-Demand Grid Point Construction { Integrates SLIM with GT, PBS, and Ganglia { Modular design, supports any grid middleware { Configure-before-disseminate, simplifies grid point management { On-demand construction of grid points, virtually effortless on the clients’ and compute nodes’ part { Customizable EE, consistent across the entire grid 31 Performance Evaluation SLIM: 272 PCs < 5 minutes (Linux only) InstantGrid: { Construct a 256-node grid point (Linux+GT+PBS+Ganglia) from scratch (PXE enabled) through Fast Ethernet: 5 minutes { Generate host certificates for 256 machines: 9 minutes { Total time : 14 minutes 32 InstantGrid/SLIM Current Progress { Released to general public since April 2004 { >150 downloads; from Mainland China, Hong Kong, Macau, Taiwan, USA, and Singapore { HKSAR Government bodies, academic institutions and high schools, software development firms, and private companies { InstantGrid/SLIM has been managing: z the HKU-CSIS grid point (350 nodes) for various grid research projects z an addition 300+ lab machines for teaching purposes (different courses have different requirements) 33 InstantGrid/SLIM Future Work { To overcome the challenges in deploying InstantGrid over broadband links
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