US 2021/0200602 A1 · Sync Groupings

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.

Claims20

Dependent claims

A gateway for interfacing at least one host with a plurality of subsystems for acting as work accelerators to the at least one host, the gateway enabling transfer of data to and from the subsystems during exchange phases of the subsystems, each of the exchange phases commencing following one of a set of pre-compiled exchange synchronisation points acting as barriers between compute phases and exchange phases, the gateway comprising:

at least one storage configured to store a plurality of sets of configuration settings, wherein each of the sets of configuration settings is associated with a different synchronisation group;
at least one interface configured to:
receive a first synchronisation request for a synchronisation to be performed between subsystems of a first synchronisation group during a first upcoming exchange phase for the first synchronisation group;
and
receive a second synchronisation request for a synchronisation to be performed between subsystems of a second synchronisation group during a second upcoming exchange phase for the second synchronisation group, wherein the first exchange phase at least partially overlaps with the second exchange phase;
and
at least one sync propagation circuit configured to:
at least one of propagate and acknowledge the first synchronisation request in accordance with the configuration settings associated with the first synchronisation group;
and
at least one of propagate and acknowledge the second synchronisation request in accordance with the configuration settings associated with the second synchronisation group.

7 more elements

Dependencies are inferred from the claim text.

Sync Groupings

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Sync Groupings

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Abstract

Claims20