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:
Apr. 18, 2023

Filed:

Feb. 27, 2020
Applicant:

Oracle International Corporation, Redwood Shores, CA (US);

Inventors:

Benjamin Schlegel, Merced, CA (US);

Martin Sevenich, Palo Alto, CA (US);

Pit Fender, Union City, CA (US);

Matthias Brantner, Sunnyvale, CA (US);

Hassan Chafi, San Mateo, CA (US);

Assignee:

Oracle International Corporation, Redwood Shores, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 16/901 (2019.01); G06F 9/38 (2018.01); G06F 9/54 (2006.01);
U.S. Cl.
CPC ...
G06F 16/9024 (2019.01); G06F 9/3887 (2013.01); G06F 9/546 (2013.01); G06F 16/9014 (2019.01);
Abstract

Techniques are described for a vectorized queue, which implements a vectorized 'contains' function that determines whether a value is in the queue. A three-phase vectorized shortest-path graph search splits each expanding and probing iteration into three phases that utilize vectorized instructions: (1) The neighbors of nodes that are in a next queue are fetched and written into a current queue. (2) It is determined whether the destination node is among the fetched neighbor nodes in the current queue. (3) The fetched neighbor nodes that have not yet been visited are put into the next queue. According to an embodiment, a vectorized copy operation performs vector-based data copying using vectorized load and store instructions. Specifically, vectors of data are copied from a source to a destination. Any invalid data copied to the destination is overwritten, either with a vector of additional valid data or with a vector of nonce data.


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