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. 31, 2021
Filed:
Jul. 17, 2019
Graphcore Limited, Bristol, GB;
Daniel John Pelham Wilkinson, West Harptree, GB;
Stephen Felix, Bristol, GB;
Matthew David Fyles, Wiltshire, GB;
Richard Luke Southwell Osborne, Bristol, GB;
GRAPHCORE LIMITED, Bristol, GB;
Abstract
A processing system comprising: a subsystem for acting as a work accelerator to a host processor, the subsystem comprising an arrangement of tiles; and an interconnect for communicating between the tiles and connecting the subsystem to the host. The interconnect comprises synchronization logic to coordinate barrier synchronizations between a group of the tiles. The synchronization logic comprises a host sync proxy module, comprising a counter written with a number of credits by the host processor, and being configured to automatically decrement the number of credits each time one of the barrier synchronizations requiring host involvement is performed. When the number of credits in the counter is exhausted, the barrier is not released until a further write from the host to the host sync proxy module, but when the number is credits in the counter is not exhausted the barrier is released without a separate write from the host.