학술논문

The RAP: a ring array processor for layered network calculations
Document Type
Conference
Source
[1990] Proceedings of the International Conference on Application Specific Array Processors Application Specific Array Processors, 1990. Proceedings of the International Conference on. :296-308 1990
Subject
Computing and Processing
Components, Circuits, Devices and Systems
Sun
Algorithm design and analysis
Neural networks
Speech recognition
Instruments
Digital signal processing
Real time systems
Operating systems
Control systems
Workstations
Language
Abstract
The authors have designed and implemented a ring array processor, RAP, for fast implementation of layered neural network algorithms. The RAP is a multi-DSP system targeted at continuous speech recognition using connectionist algorithms. Four boards, each with four Texas Instruments, TMS 320C30 DSPs, serve as an array processor for a 68020-based host running a real-time operating system. The overall system is controlled from a Sun workstation via the Ethernet. Each board includes 16 MB of dynamic memory (expandable to 64 MB) and 1 MB of fast static RAM. Theoretical peak performance is 128 MFLOPS/board, and test runs with the first working board show a sustained throughput of roughly one-third to one-half of this for algorithms of interest. Software development is aided by a Sun workstation-based command interpreter, tools from the standard C environment and a library of matrix and vector routines.ETX