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:
Nov. 04, 2014

Filed:

Mar. 13, 2013
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Mark E. Giampapa, Irvington, NY (US);

Thomas M. Gooding, Rochester, MN (US);

Raul E. Silvera, Ontario, CA;

Kai-Ting Amy Wang, Ontario, CA;

Peng Wu, Rochester, NY (US);

Xiaotong Zhuang, White Plains, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/46 (2006.01); G06F 9/40 (2006.01); G06F 12/08 (2006.01); G06F 9/38 (2006.01); G06F 9/48 (2006.01); G06F 9/52 (2006.01); G06F 9/50 (2006.01);
U.S. Cl.
CPC ...
G06F 9/466 (2013.01); G06F 12/0862 (2013.01); G06F 9/3842 (2013.01); G06F 9/4843 (2013.01); G06F 9/52 (2013.01); G06F 9/5016 (2013.01); G06F 9/4881 (2013.01); G06F 9/467 (2013.01);
Abstract

In an embodiment, if a self thread has more than one conflict, a transaction of the self thread is aborted and restarted. If the self thread has only one conflict and an enemy thread of the self thread has more than one conflict, the transaction of the self thread is committed. If the self thread only conflicts with the enemy thread and the enemy thread only conflicts with the self thread and the self thread has a key that has a higher priority than a key of the enemy thread, the transaction of the self thread is committed. If the self thread only conflicts with the enemy thread, the enemy thread only conflicts with the self thread, and the self thread has a key that has a lower priority than the key of the enemy thread, the transaction of the self thread is aborted.


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