Parallel Digital Signal Processing with a Multicomputer Type DSP System NOVI

Tetsurou FUJII  Naohisa OHTA  Yukiharu KANAYAMA  Sadayasu ONO  

IEICE TRANSACTIONS (1976-1990)   Vol.E71   No.12   pp.1195-1202
Publication Date: 1988/12/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: Special Section PAPER (Special Issue on CAS Karuizawa Workshop)

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This paper discusses the architecture and performance of parallel digital signal processing with a multicomputer system. A digital signal processor (DSP) system, called NOVI, has been developed to examine various methods for organizing parallel DSP systems, and for developing parallel programs for a wide range of digital signal processing applications. NOVI adopts multicomputer architecture and presently consists of 36 processing elements (PEs). Its parallel program development assistant (PDA) system facilitates powerful debugging functions to monitor all PEs without any interference in the parallel program execution. A load balancing technique for a multicomputer type DSP is also discussed, focusing on low bit rate motion picture coding. Finally, an example of the measured performance of the NOVI system is presented.