Grid Application Toolkit A simple API for Grid Applications

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Next: Contents   Contents Kelly Davis GAT User's Guide Grid Application Toolkit Gridlab-1-UG-0005.UsersGuide PSNC,ZIB,MU,SZTAKI,VU,ISUFI,CARDIFF,GRIDWARE, COMPAQ,NTUA MPG Gridlab-1-UG-0005-0.1 Draft Internal This document guides one through the use of the Grid Application Toolkit (GAT), covering everything from high-level architecture to the details of installation and use of the toolkit. This document is primarily geared towards application developers who wish to ``grid-enable'' their applications but do not wish to scale the painful learning curve of current grid middleware. Contents Preface Why GAT? Organization of the User's Guide Who You Are GAT Versions About the Examples Conventions Used in the User's Guide Request for Comments GAT Installation GAT Requirements Why GAT? Why GAT? What Can GAT Do? File Management FileStream Management LogicalFile Management Advertisable Management Resource Management Interprocess Communication Job Management Monitoring Wait, There's More to GAT! Basic Grid Concepts Grid Parable of the Elephant and the Blind Men The Elephant's Head The Elephant's Ears The Elephant's Tusks The Elephant's Trunk The Elephant's Foot The Whole Elephant Grid Protocols WSDL OGSA OGSI The Grid Computing Model Grid Standards How Standards are Developed Selected Grid Standards Basic Web Concepts Wonderful World Wide Web URI's Relative and Absolute Absolute URI's Relative URI's Security T.N.S.T.A.A.F.L. Can You Keep a Secret? Don't you...anybody touch...This is my stuff! Who are You? HTTP, HTTPS, and Beyond HTTP HTTPS XML and XML Schemas XML XML Schemas Web Services CGI, Servlets, and the Kitchen Sink Oh My! ...and XML-RPC Oh No! SOAP WSDL GAT Object Model C ain't Object Oriented GAT Object Model GAT Interface Model Some Not So Useful Programs Getting an Object's Type Determining Object Equality Cloning Objects Converting Objects Using an Object's Interface File Management Files, Folders, and the Letter ``F'' The File Package Creating and Destroying File Instances Copying, Moving, and Deleting File Instances Examining File Instances Some Useful Programs A Fancy-Pants cp Wow Your Friends with mv From rm to RM A ls -l of sorts FileStream Management Copy, Move, and Delete, but I How to Write! The FileStream Package Constructing and Destroying FileStream Instances Reading from a FileStream Instance Writing to a FileStream Instance Seeking on a FileStream Instance Some Useful Programs From hexdump to gridhexdump in three easy steps! A cp from the ground up gridhexdump, theme and variation LogicalFile Management The Shortest Distance Between Two Points... The LogicalFile Package Constructing and Destroying LogicalFile Instances Adding and Removing File Instances Replicating LogicalFile Instances Examining LogicalFile Instances Some Useful Programs Put 'dat in da girdbag! Form Dolly to griddolly Advert Management So, where did I put my Keys? The Advertisement Package Constructing and Destroying AdvertService Instances Adding Advertisables to an AdvertService Deleting Advertisables from an AdvertService Obtaining the Description of an Advertisable Finding Advertisables Getting or Deleting an Advertisable Setting and Getting the Working Directory Some Useful Programs What is Big, Red, and Eats Rocks? Who lives at 1600 Pennsylvania Avenue? Resource Management The Resource Management Package Finding Resources Making Plans and Changing Your Mind The Resource Management Package Resource Descriptions Resources Resource Broker Constructing and Destroying HardwareDescription Instances Constructing and Destroying SoftwareResourceDescription Instances Constructing and Destroying ResourceBroker Instances Finding Resources Reserving Resources Canceling Reservations Some Useful Programs Find me something big and fast! An Equal Opportunity Employer Interprocess Communication Telephones of the Internet Age Calling Speaking and Listening Hanging-Up The Streaming Package Constructing and Destroying Endpoint Instances Listening on Endpoints Advertising Endpoints Connecting on Endpoints Reading and Writing on Pipes Some Useful Programs A No So-Useful Echolalia Client and Server Job Management Job Management The Job Management Package Resource Descriptions Resource Broker Jobs Creating and Destroying SoftwareDescription Instances Creating and Destroying JobDescription Instances Obtaining and Destroying Job Instances Obtaining the State of a Job Instance Obtaining the JobID of a Job Instance Obtaining the JobDescription of a Job Instance Obtaining Information about a Job Instance Un-Scheduling a Job Instance Stoping a Job Instance Checkpointing a Job Instance Migrating a Job Instance Cloning a Job Instance Some Useful Programs See GAT run. Run GAT, run Event System Being Spyed On: A User's Guide The Event Package Creating a RequestListeners Adding and Removing RequestListeners Processing Requests Adaptors So, you want to be in movies? The Adaptor Interface Registering Internal Data Registering the CPI Destructor Function Registering Object Functions Registering Interface Functions Registering Event Handlers Registering the Completed CPI Some Useful Programs The Million Dollar cp Waiting for the Big Checkpoint Appendix: GATTypes Appendix: GAT Primitive Types Appendix: GATResult Codes Severity Code Customer Code Reserved Code Facility Code Facility Status Code GATResult Macro's Appendix: GATPreferences Appendix: Regular Expressions Brief History Regular Expressions in Formal Language Theory POSIX Regular Expression Syntax Appendix: GATTable Creating and Destroying Table instances Adding Key/Value Pairs Removing Key/Value Pairs Obtaining Values Corresponding to a Given Key Obtaining a Table's Size Obtaining All Keys Appendix: GATString Creating and Destroying String Instances Examining a String's Properties Translating a String to a New Encoding Comparing two Strings Examining String Prefix and Suffix Concatenating Strings Examining Substrings of a String Obtaining Substrings Appendix: Backus-Naur Form Appendix: POSIX Paths About this document ... Andre Merzky 2004-05-13