DocumentCode :
2254397
Title :
Demonstration of the remote exploration and experimentation (REE) fault-tolerant parallel-processing supercomputer for spacecraft onboard scientific data processing
Author :
Chen, Fannie ; Craymer, Loring ; Deifik, Jeff ; Fogel, Alvin J. ; Katz, Daniel S. ; Silliman, Alfred G., Jr. ; Some, Raphael R. ; Upchurch, Sean A. ; Whisnant, Keith
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fYear :
2000
fDate :
2000
Firstpage :
367
Lastpage :
372
Abstract :
Concerns a demonstration of the REE Project´s work to date. The demonstration is intended to simulate an REE system that might exist on a Mars rover, consisting of multiple COTS processors, a COTS network, a COTS node-level operating system, REE middleware, and an REE application. The specific application performs texture processing of images. It was chosen as a building block of automated geological processing that will eventually be used for both navigation and data processing. Because the COTS hardware is not radiation hardened, single-event-upset-induced soft errors will occur. These errors are simulated in the demonstration by use of a software-implemented fault-injector, and are injected at a rate much higher than is realistic for the sake of viewer interest. Both the application and the middleware contain mechanisms for both detection of and recovery from these faults, and these mechanisms are tested by this very high fault-rate. The consequence of the REE system being able to tolerate this fault rate while continuing to process data is that the system will easily be able to handle the true fault rate
Keywords :
Mars; aerospace simulation; client-server systems; digital simulation; fault tolerant computing; geology; image texture; mobile robots; parallel machines; planetary rovers; robot vision; space research; COTS network; COTS node-level operating system; Mars rover; REE fault-tolerant parallel-processing supercomputer; REE middleware; Spacecraft onboard scientific data processing; automated geological processing; image texture processing; middleware; multiple COTS processors; single-event-upset-induced soft errors; Application software; Data processing; Fault detection; Geology; Hardware; Mars; Middleware; Navigation; Operating systems; Radiation hardening;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Dependable Systems and Networks, 2000. DSN 2000. Proceedings International Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-7695-0707-7
Type :
conf
DOI :
10.1109/ICDSN.2000.857562
Filename :
857562
Link To Document :
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