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. 27, 1987
Filed:
Nov. 04, 1983
John Hrustich, Endicott, NY (US);
Wayne R Sitler, Endwell, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A dual stream processor apparatus, for use in a multiprocessor computer system, is disclosed. The multiprocessor computer system includes at least a first processor and a second processor. A first apparatus and a second apparatus is included in both the first processor and the second processor for use when either the first or the second processor is inoperative. The first apparatus, disposed within the inoperative processor, suspends the functional operation of the inoperative processor. The second apparatus, disposed within the inoperative processor, transmits a miss signal to the other remaining functionally operational processor. When the other remaining processor receives the miss signal, it will not subsequently attempt to locate desired data in the cache of the inoperative processor. Rather, the other remaining processor will search for the desired data in the main memory in the event it cannot locate the data in its own cache.