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:
May. 17, 2022

Filed:

Dec. 17, 2020
Applicant:

Graphcore Limited, Bristol, GB;

Inventors:

Brian Manula, Stockholm, SE;

Daniel John Pelham Wilkinson, Bristol, GB;

Assignee:

GRAPHCORE LIMITED, Bristol, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/52 (2006.01); G06F 13/20 (2006.01); G06F 15/173 (2006.01); G06F 13/14 (2006.01); G06F 13/362 (2006.01);
U.S. Cl.
CPC ...
G06F 9/52 (2013.01); G06F 13/20 (2013.01);
Abstract

A gateway implementing multiple independent sync networks. The independent sync networks can be used to allow for synchronisation between different synchronisation groups of accelerators. The independent sync networks allow synchronisations to be carried out asynchronously and simultaneously. The gateway has sync propagation circuitry that receives a first synchronisation request for an upcoming exchange phase and propagates this sync request through a first sync network. The first synchronisation request is a request for synchronisation between subsystems of a first synchronisation group. The sync propagation circuitry of the gateway also receives a second synchronisation request for a different exchange phase and propagates this sync request through the second sync network. The second synchronisation request is a request for synchronisation between subsystems of a second synchronisation group. The two exchange phases overlap in time. Therefore, the syncs are simultaneous and asynchronous.


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