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.

Date of Patent:
Jun. 07, 2016

Filed:

Mar. 19, 2007
Applicants:

Yaoqing Gao, North York, CA;

Liangxiao HU, North York, CA;

Guansong Zhang, Markham, CA;

Peng Zhao, North York, CA;

Inventors:

Yaoqing Gao, North York, CA;

Liangxiao Hu, North York, CA;

Guansong Zhang, Markham, CA;

Peng Zhao, North York, CA;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/45 (2006.01); G06F 9/38 (2006.01);
U.S. Cl.
CPC ...
G06F 8/4441 (2013.01); G06F 9/383 (2013.01); G06F 9/3851 (2013.01);
Abstract

A compiler method for exploiting data value locality for computation reuse. When a code region having single entry and exit points and in which a potential computation reuse opportunity exists is identified during runtime, a helper thread is created separate from the master thread. One of the helper thread and master thread performs a computation specified in the code region, and the other of the helper thread and master thread looks up a value of the computation previously executed and stored in a lookup table. If the value of the computation previously executed is located in the lookup table, the other thread retrieves the value from the table, and ignores the computation performed by the thread. If the value of the computation is not located, the other thread obtains a result of the computation performed by the thread and stores the result in the lookup table for future computation reuse.


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