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Towards an Agent enabled Gird environment

Towards an Agent enabled Gird environment. Nguyen Thanh Thuy, Le Dang Hung, Dao Tran Minh, Nguyen Xuan Vinh, Le Thi Phuong HPCC - HUT. Content. Globus Toolkit JADE Agent frameworks Integrating JADE Agents into Globus based Grid environment Applications in HPCC-HUT Grid

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Towards an Agent enabled Gird environment

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  1. Towards an Agent enabled Gird environment Nguyen Thanh Thuy, Le Dang Hung, Dao Tran Minh, Nguyen Xuan Vinh, Le Thi Phuong HPCC - HUT

  2. Content • Globus Toolkit • JADE Agent frameworks • Integrating JADE Agents into Globus based Grid environment • Applications in HPCC-HUT Grid • Conclusion and Future work

  3. Introduction about GC with Globus Toolkit • GC: enables the sharing, selection, and aggregation of geographically distributed heterogeneous resources for solving large-scale problems in science, engineering, and commerce. • Globus Toolkit (GT): • the leading open source toolkit used today to build Grid environments.

  4. Introduction about GC with Globus Toolkit (cont) • GT: • lets people share computing power, database, and other tools securely online across corporate, industrial, and geographic boundaries without sacrificing local autonomy. • includes software services and libraries for resource monitoring, discovery, and management, plus security, file management, data management, communication, and portability.

  5. JADE Agents framework • JADE (Java Agent DEvelopment frameworks): • is a framework fully implemented in Java language • simplifies the implementation of multi-agent systems through a middle-ware that complies with FIPA specifications and through a set of graphic tools that supports debugging and deployment phases.

  6. Integrating JADE Agents into Globus based Grid environment • The necessity • The main difficulties • Related work • Our approach

  7. The necessity • Resources in Grid environment: • heterogeneous • geographically distributed • dynamically changed • Agent technologies’ abilities: • autonomy • co-operate • reaction • migration

  8. Globus Toolkit To build a Grid Service: extends class GridServiceBase or use operation providers A Grid Service lives in Globus Grid Service container JADE framework To build an Agent: extends class Agent and setup some behaviors An Agent lives in JADE platform The main difficulties 2 platforms use different standard formats of message

  9. The main difficulties (cont) • What is the solution that can ease the communication and interaction between objects living within these two separate environments?

  10. Related work • SoFAR project: • considers an Agent as a service by means of using Web service facilities to expose agent features

  11. Our approach - HAGS • We consider a Grid Service as an Agent and add Agent’s behaviors into the service •  Hybrid Agent – Grid Service • Core idea: writing a Grid Service that extends the Agent class!!! Simple!!!

  12. HAGS – Design and Implementation • Preparation • The HAGS • The Auto Setup Agent Grid Service

  13. HAGS - Preparation • Copy six main libraries of JADE (jade.jar, iiop.jar, crimson.jar, http.jar Base64.jar, jadeTools.jar) into Globus Toolkit library directory ($GLOBUS_LOCATION/lib)

  14. HAGS • Extends Agent class  Agent • Uses operation providers  Grid Service • Some important methods: • initialize(): create a non-main container and connect it to the default main container of JADE platform • setup() and takedown(): just setup code as for ordinary agents • preDestroy(): order the agent to delete itself

  15. HAGS - The Auto Setup Agent Grid Service • Automatically setup the whole JADE platform along with the grid service container • Can recognize when the grid service container is going to be shut down and automatically shut down the agent platform as well •  is successfully implemented  ready-to-use

  16. Applications in HPCC-HUT Grid • HPCC-HUT Grid • Application: Weka • The multi agent system as a grid information service • Agent as a resource manager • Agent as a resource broker

  17. Conclusion and Future work • Results: • Idea and technical details of completing an HAGS system • Successful implementation in BKGrid 2005 • Drawbacks: • The agent communication hasn’t been really controlled yet  security problems!!! • The overhead caused by the whole agent system to the grid environment

  18. Conclusion and Future work (cont) • Future work: • Solve the drawbacks • Experiment the HAGS system in larger Grid environments

  19. Thank you very much!

  20. public void initialize(GridServiceBase base) throws GridServiceException { this.base = base; AgentContainer ac = null; Runtime rt = Runtime.instance(); // Create a default profile ProfileImpl p = new ProfileImpl(false); try { // Create a new non-main container, connecting to the // default main container (i.e. on this host, port 1099) ac = rt.createAgentContainer(p); // Create a new agent AgentController t2 = ac.acceptNewAgent("Broker "+System.currentTimeMillis(),this); // fire-up the agent t2.start(); } catch (Exception e2) { e2.printStackTrace(); } } Back

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