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.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Dec. 21, 2017
International Business Machines Corporation, Armonk, NY (US);
Gopi K. Attaluri, San Jose, CA (US);
Ronald J. Barber, San Jose, CA (US);
Ippokratis Pandis, Palo Alto, CA (US);
Vijayshankar Raman, Sunnyvale, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for building a hash table over a subset of data in a data set includes partitioning a subset of keys and values in the data set into multiple partitions. A hash table is formed with space reserved for each partition based on cumulative counts for a number of keys and values in each partition of the multiple partitions. Each thread selects one or more partitions and inserts keys and values belonging to the selected one or more partitions into the hash table in the reserved space for those partitions. A compact hash table is created that includes a bitmap and a compacted army.