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:
Sep. 18, 2001
Filed:
Sep. 28, 1998
Arthur L. Zaifman, Marblehead, MA (US);
Stephen Ciavaglia, Merrimack, NH (US);
Edward C. Szajner, Jr., Leominster, MA (US);
Alcatel Internetworking, Inc., Calabasas, CA (US);
Abstract
Shadow arrays are configured in a distributed memory multiprocessor architecture to localize memory referencing. As each additional processor becomes active a variable array having dimensions 1×N, including N single instance variables which must be monitored on a “per processor” basis, is configured in a memory local to the additional processor and made locally referenceable. A patchwork of shadow arrays is thereby established in which each additional processor may reference local memory to access its own value set for the N single instance variables. The single instance formatting of the arrays also advantageously facilitates migration from an single processor operating system to a multiprocessor operating system without substantial recoding.