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 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
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.
Grid Architecture Security Layer (GSI) Resource Allocation (GRAM) Data Management (GFTP) Information Service (GIIS - MDS)
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
Grid Installation Flow Wireless Medium Box1 Client Box2 Server Box3 Server Box4 Server Install OS Install Network Interface Install Globus Installer (GPT) Install Simple CA Install Server/Client Software Sign Server/User Certificates Configure services Start Grid Services
Wireless Background IEEE b Broadcast system Different medium than IEEE Alternation of senders Ad Hoc Networking Self-configuring Multi-hop
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
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
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
Graphic altered from IBM redbook Grid Demo Application Design (cont’d)
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
Application Results
Application Results (cont’d)
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
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.
Got Questions? Special Thanks To: Professor Chang, Professor Morrison, George Preble, Warren Gagosian, Bor-Rong Chen