Distributed instruction set computer
The Distributed Instruction Set Computer, or DISC for short, is an experimental computer system for fine-grained parallel processing. DISC employs a new parallel instruction set, an Early Binding and Scheduling data tagging scheme, and a distributed control mechanism to explore a software dataflow control method in a multiple-functional unit system. With zero system control overhead, multiple instructions are executed in parallel and/or out of order at the highest speed of n instructions/cycle, where n is the number of functional units. The quantitative simulation result indicates that a DISC system with 16 functional units can deliverer a maximal 7.7X performance speedup over a single functional-unit system at the same clock speed. Exploring a new parallel instruction set and distributed control mechanism, DISC represents three major breakthroughs in the domain of fine-grained parallel processing: (1) Fast multiple instruction issuing mechanism; (2) Parallel and/or out-of-order execution; (3) Software dataflow control scheme.
- Research Organization:
- Texas Univ., Austin, TX (United States)
- OSTI ID:
- 5585137
- Country of Publication:
- United States
- Language:
- English
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