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:
Jan. 31, 2023
Filed:
Jul. 30, 2020
Marvell Asia Pte, Ltd., Singapore, SG;
Cray Inc., Seattle, WA (US);
Harold Wade Cain, III, Raleigh, NC (US);
Rabin Andrew Sugumar, Sunnyvale, CA (US);
Nagesh Bangalore Lakshminarayana, San Jose, CA (US);
Daniel Jonathan Ernst, West St. Paul, MN (US);
Sanyam Mehta, Hopkins, MN (US);
MARVELL ASIA PTE, LTD., Singapore, SG;
CRAY INC., Seattle, WA (US);
Abstract
A system for processing gather and scatter instructions can implement a front-end subsystem, a back-end subsystem, or both. The front-end subsystem includes a prediction unit configured to determine a predicted quantity of coalesced memory access operations required by an instruction. A decode unit converts the instruction into a plurality of access operations based on the predicted quantity, and transmits the plurality of access operations and an indication of the predicted quantity to an issue queue. The back-end subsystem includes a load-store unit that receives a plurality of access operations corresponding to an instruction, determines a subset of the plurality of access operations that can be coalesced, and forms a coalesced memory access operation from the subset. A queue stores multiple memory addresses for a given load-store entry to provide for execution of coalesced memory accesses.