Accession Number : AD0758697

Title :   Advanced Computer Architecture for Large-Scale Real-Time Applications.

Descriptive Note : Final rept.,

Corporate Author : TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MASS

Personal Author(s) : Wang,Gary Y.

Report Date : APR 1973

Pagination or Media Count : 184

Abstract : Air traffic control automation is identified as a crucial problem which provides a complex, real-time computer application environment. A novel computer architecture in the form of a pipeline associative processor is conceived to achieve greater performance improvement over the present air traffic control system by parallel processing. This new processor is structured into a multiprocessor configuration for reliability enhancement. Problems associated with multiprocessors are identified with special emphasis on execution time anomalies and memory conflict. A direct graph model is used for analysis from which simple heuristics are established for memory allocation and dynamic task scheduling to achieve optimal performance with minimal system overhead. These schemes are simulated and the results obtained follow closely the predicted system behavior. The report includes a discussion of the GASP II simulation programming language, and the FORTRAN H-516 simulation program listings for analysis of the proposed processor. (Author)

Descriptors :   (*AIR TRAFFIC CONTROL SYSTEMS, AUTOMATION), (*DATA PROCESSING, AIR TRAFFIC CONTROL SYSTEMS), REAL TIME, TARGET ACQUISITION, RADAR TRACKING, COMPUTER LOGIC, DATA STORAGE SYSTEMS, SCHEDULING, COMPUTER PROGRAMS

Subject Categories : Computer Programming and Software
      Computer Hardware
      Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE