The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 04, 1994
Filed:
Mar. 01, 1989
Applicant:
Inventor:
Jeremy Dion, Santa Clara County, CA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395425 ; 395200 ; 395650 ; 364D / ; 3642281 ; 3642283 ; 3642292 ; 3642303 ; 3642304 ; 3642401 ; 36424344 ; 3642461 ; 3642592 ; 3642707 ;
Abstract
For use with a multiprocessor system employing shared memory, a software controlled method maintains cache coherency and execution synchronization among processors. A processor executing a SEND instruction transfers a cache line to one or more processors executing a RECEIVE instruction in a synchronized manner. The processors also execute the SEND and RECEIVE instructions to synchronize the execution of iterations of a program loop whereby a control processor distributes indices of the iterations to be performed by each worker processor.