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SAI DEEPTHI YARLAGADDA STUDY OF JAVA BASED GRID COMPUTING APRIL 30TH 2003

SAI DEEPTHI YARLAGADDA STUDY OF JAVA BASED GRID COMPUTING APRIL 30TH 2003. WHAT IS GRID COMPUTING.

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SAI DEEPTHI YARLAGADDA STUDY OF JAVA BASED GRID COMPUTING APRIL 30TH 2003

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  1. SAI DEEPTHI YARLAGADDA STUDY OF JAVA BASED GRID COMPUTINGAPRIL 30TH 2003

  2. WHAT IS GRID COMPUTING • A grid is a collection of distributed computing resources available over a local or wide area network that appear to end user or application as one large virtual computing system

  3. TYPES OF GRIDS • Cluster grid:Consists of one or more systems working together to provide a single point of access to users. • Campus grid:Multiple projects or departments share computing resources in a cooperative way • Global grid:The power of distributed resources to anywhere in the world

  4. JAVA COMMODITY GRID KIT A COMMODITY GRID TOOLKIT (CoG Kit) defines and implements a set of general components that map grid functionality into a commodity environment/framework. (ex:java CoG Kit,CORBA CoG Kit,DCOM CoG Kit ETC) Why use Java CoG Kit, the ten reasons to use java CoG Kit are The Language The Maintenance The Class Library The Performance The Components The Gadgets The Deployment The Industry The Portability The Community

  5. RELATED WORKS

  6. ALiCE - A JAVA BASED GRID COMPUTING SYTEM ALiCE is a Adaptive and scaLable Internet-based Computing engine • Supports computing on demand and resource sharing. • Supports the development and execution of generic grid applications. • It is a middleware that provides a programming abstraction as well as masking the heterogeneity of the underlying networks ,hardware and operating systems.

  7. MAIN FEATURES • Job parallelism to maximize throughput and object parallelism to maximize performance • Distributed load balancing algorithm application driven distributed load balancing ; task replications for fault-tolerant and to meet performance deadline • Levels of security at varying costs • Usage of Java,Java Jini/Java Spaces technologies • Adaptive parallelism,cross-platform portability,extensibility and scalability

  8. ALiCE PRODUCER CONSUMER MODEL Consumers(clients): Interface to users Launch point for applications Collection point for results Producers(servers): Provide computing power Executes tasks Resource brokers(RB): Authentication Application execution control Resource management

  9. ALiCE EXECUTION MODEL Visualizer Producer 1 1.Task generator at Resource broker initiates applications and produces a pool of tasks Producer 2 4.Result collector results 2.the task execute method is run at the producers Resource Broker Consumer Producer n results 3.Result objects produced are returned to the resource broker

  10. ALiCE PROGRAMMING TEMPLATES • Task generator:Allows application to be invoked at the resource broker by invocation of the users main method • Result collector:Allows applications to be invoked at the consumer node,waiting for results to be returned from the resource broker • Task:Allows the producer nodes to result a return object to the resource broker upon completing the execution • Result:Provides an interface for producer to instantiate and returns any evaluated or intermediate data Allows users to store the result of execution

  11. AliCE APPLICATIONS • Ray tracing , Mandelbrot set , georectification of satellite images

  12. What does grid security include • Remote access security management preventing user forgery,server forgery,data wiretapping and remote attack. • User rights security management adding restricted delegation on user,preventing user abuse resources. • Task security management protecting communication between processes,system integrity and preventing malicious programs.

  13. GRID APPLICATION AREAS • Higher education • Agricultural chemicals • Life sciences • Electronic industry • Aerospace • Government(information access) • Automotive • Financial services • Workshop

  14. CUSTOMER EXAMPLES • University of Pennsylvania,University of Chicago, University of California • NASA • UK national grid • Butterfly.net • Netherlands computing grid • Distributed terascale facility • US department of energy • National digital mammographic archive(NDMA)

  15. QUESTIONS ?

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