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Wireless Grid Computing

Wireless Grid Computing. A Prototype Wireless Grid Grant Gifford Mark Hempstead April 30, 2003. Overview of Presentation. Grid Computing Wireless Networking Building a small wireless grid Test Application Conclusions. Purpose of the Project.

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Wireless Grid Computing

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  1. Wireless Grid Computing A Prototype Wireless Grid Grant Gifford Mark Hempstead April 30, 2003

  2. Overview of Presentation • Grid Computing • Wireless Networking • Building a small wireless grid • Test Application • Conclusions

  3. Purpose of the Project • Study the collision of two emerging technologies • Grid Computing • Corporate research IBM, Sun • R&D Magazine top 100 technologies of 2002 • MIT Technology Review one of “Ten Technologies that will change the world” • Wireless Networking • Widespread prevalence, almost a commodity • Develop a proof of concept wireless grid

  4. The “Grid Problem” • Flexible, secure, coordinated resource sharing among dynamic collections of individuals, institutions, and resources From “The Anatomy of the Grid: Enabling Scalable Virtual Organizations” • Enable communities (“virtual organizations”) to share geographically distributed resources as they pursue common goals -- assuming the absence of… • central location, • central control, • omniscience, • existing trust relationships.

  5. Grid Architecture Information Service (GIIS - MDS) Resource Allocation (GRAM) Data Management (GFTP) Security Layer (GSI)

  6. The Globus Toolkit • Open source collection of services, APIs, and protocols to aid in grid development • Developing industry-wide open grid services architecture standards (OGSA) • Collaboration of industry, academic and government research organizations • Grid developed using Globus Version 2.2

  7. Grid Installation Flow Install OS Box1 Client Box2 Server Install Network Interface Install Globus Installer (GPT) Wireless Medium Install Simple CA Install Server/Client Software Box4 Server Box3 Server Sign Server/User Certificates Configure services Start Grid Services

  8. Wireless Background • IEEE 802.11b • Broadcast system • Different medium than IEEE 802.3 • Alternation of senders • Ad Hoc Networking • Self-configuring • Multi-hop

  9. Linux Installation • Red Hat 7.3 • Open source • Standard workstation installation • Addition installations on Box1 • External Network access • Configure standard 10/100 NIC • FTP Server • Locally accessed by project machines

  10. Wireless Installation • Special tools for configuring wireless NICs • IW Tools • Compile wireless NIC driver • ATMEL drivers (Linksys WUSB11 v2.6) • Alter Linux system files to utilize the wireless NIC • Modules.conf, ifcfg-eth0, .vnetrc

  11. Application Design • A job that can be sectioned. • Test different levels of grid use • 2 node, 3 node • Parallel, Sequential • Want it to require a fair amount of resources to accomplish • Want to see channel saturation

  12. Application Design (cont’d) Graphic altered from IBM redbook Grid Demo

  13. Application Installation • Transcode (box1) • Split the AVI file into separate AVI chunks to distribute to servers • MJPEGtools (box2, box3, box4) • To separate the video and audio tracks of the AVI • To compress tracks • To recombine the compressed tracks

  14. Application Results

  15. Application Results (cont’d)

  16. Problems and Solutions • Dead wireless card • Issues implementing MDS • Finding drivers and defining install procedure for wireless cards • Backup system – CD burner issues • MJPEG tools install problems

  17. Conclusions • The grid works! • Objectives reached • Effective throughput of wireless 47KBs • Wireless more suitable for less data intensive applications • Extensive research is still necessary to develop efficient wireless grids.

  18. Got Questions? Special Thanks To: Professor Chang, Professor Morrison, George Preble, Warren Gagosian, Bor-Rong Chen

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