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:
Nov. 25, 2003
Filed:
Aug. 27, 2001
Erik E. Hagersten, Palo Alto, CA (US);
Mark D. Hill, Madison, WI (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
A portion of the global memory of a multiprocessing computer system is allocated to each node, called local memory space. Data from a remote node may be copied to local memory space of a node such that accesses to the data may be performed locally rather than globally. The global address of the data is translated to a local physical address for the node to which the data is copied. To reduce the size of the translation tables for converting between global addresses and local physical addresses, multiple pages of the address space are mapped to an entry in a translation table. To decrease the probability that an entry is not available for a page, the translation table may be implemented as a skewed-associative cache that implements an insertion algorithm that realigns the translations in the table to maximize the utilization of the available entries is implemented.