Selective operation of processing elements in a single instruction multiple data stream (SIMD) computer system
US5045995A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Dec 3, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/8007
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A plurality of processing elements independently operate in parallel on separate streams of data but in response to common instructions. In order to selectively and individually enable each processing element, a control register stage is provided for each. Each register may be controlled, as between its enabling and disabling states with respect to execution of a common instruction, by the results of a test performed by its associated processor in response to a prior instruction and by the complement of the test results. The system is especially adapted to support flow of control operators, such as IF/THEN constructs, IF/THEN/ELSE constructs and WHILE/DO loop constructs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.