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:
Oct. 15, 2019

Filed:

Jun. 09, 2016
Applicant:

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

Inventors:

Salma Ayub, Austin, TX (US);

Joshua W. Bowman, Austin, TX (US);

Jeffrey C. Brownscheidle, Seattle, WA (US);

Sundeep Chadha, Austin, TX (US);

Dhivya Jeganathan, Austin, TX (US);

Dung Q. Nguyen, Austin, TX (US);

Salim A. Shah, Austin, TX (US);

Brian W. Thompto, Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/38 (2018.01);
U.S. Cl.
CPC ...
G06F 9/3828 (2013.01); G06F 9/3836 (2013.01); G06F 9/3838 (2013.01); G06F 9/3891 (2013.01);
Abstract

Methods and apparatus for transmitting data between execution slices of a multi-slice processor including receiving, by an execution slice, a broadcast message comprising an instruction tag (ITAG) for a producer instruction, a latency, and a source identifier; determining that an issue queue in the execution slice comprises an ITAG for a consumer instruction, wherein the consumer instruction depends on result data from the producer instruction; calculating a cycle countdown using the latency and the source identifier; determining that the cycle countdown has expired; and in response to determining that the cycle countdown has expired, reading the result data from the producer instruction.


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