Patent · US Active

Snapshot isolation in graphical processing unit hardware transactional memory

US10671427B2 · kind B2 · utility

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14Claims

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Assignee

BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE · US

Inventors

Lu Peng · Lo Wu, CN
Sui Chen · Sunnyvale, US

Key dates

Filing date	Jun 22, 2018
Grant date	Jun 2, 2020
Priority date	—
Expiry date	Oct 10, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/1016
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Snapshot Isolation (SI) is an established model in the database community, which permits write-read conflicts to pass and aborts transactions only on write-write conflicts. With the Write Skew Anomaly (WSA) correctly eliminated, SI can reduce the occurrence of aborts, save the work done by transactions, and greatly benefit long transactions involving complex data structures. Embodiments include a multi-versioned memory subsystem for hardware-based transactional memory (HTM) on the GPU, with a method for eliminating the WSA on the fly, and incorporates SI. The GPU HTM can provide reduced compute time for some compute tasks.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.