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Title: Cache directory look-up re-use as conflict check mechanism for speculative memory requests

Abstract

In a cache memory, energy and other efficiencies can be realized by saving a result of a cache directory lookup for sequential accesses to a same memory address. Where the cache is a point of coherence for speculative execution in a multiprocessor system, with directory lookups serving as the point of conflict detection, such saving becomes particularly advantageous.

Inventors:
Issue Date:
Research Org.:
OSTI (Office of Scientific and Technical Information, Oak Ridge, TN)
Sponsoring Org.:
USDOE
OSTI Identifier:
1093237
Patent Number(s):
8,533,399
Application Number:
12/984,252
Assignee:
International Business Machines Corporation (Armonk, NY)
DOE Contract Number:  
B554331
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Ohmacht, Martin. Cache directory look-up re-use as conflict check mechanism for speculative memory requests. United States: N. p., 2013. Web.
Ohmacht, Martin. Cache directory look-up re-use as conflict check mechanism for speculative memory requests. United States.
Ohmacht, Martin. Tue . "Cache directory look-up re-use as conflict check mechanism for speculative memory requests". United States. https://www.osti.gov/servlets/purl/1093237.
@article{osti_1093237,
title = {Cache directory look-up re-use as conflict check mechanism for speculative memory requests},
author = {Ohmacht, Martin},
abstractNote = {In a cache memory, energy and other efficiencies can be realized by saving a result of a cache directory lookup for sequential accesses to a same memory address. Where the cache is a point of coherence for speculative execution in a multiprocessor system, with directory lookups serving as the point of conflict detection, such saving becomes particularly advantageous.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {9}
}

Patent:

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