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:
Jan. 26, 2016

Filed:

Aug. 30, 2013
Applicant:

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

Inventors:

Michael Blocksome, Yorktown Heights, NY (US);

Sameer Kumar, Yorktown Heights, NY (US);

Amith R. Mamidala, Yorktown Heights, NY (US);

Douglas Miller, Rochester, NY (US);

Joseph D. Ratterman, Seattle, WA (US);

Assignee:

GLOBALFOUNDRIES INC., Grand Cayman, KY;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/50 (2006.01); G06F 9/52 (2006.01);
U.S. Cl.
CPC ...
G06F 9/50 (2013.01); G06F 9/522 (2013.01);
Abstract

A system and method for enhancing barrier collective synchronization on a computer system comprises a computer system including a data storage device. The computer system includes a program stored in the data storage device and steps of the program being executed by a processor. The system includes providing a plurality of communicators for storing state information for a barrier algorithm. Each communicator designates a master core in a multi-processor environment of the computer system. The system allocates or designates one counter for each of a plurality of threads. The system configures a table with a number of entries equal to the maximum number of threads. The system sets a table entry with an ID associated with a communicator when a process thread initiates a collective. The system determines an allocated or designated counter by searching entries in the table.


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