Graphcore Limited

Harald Hoeg

Brian Manula

Ola Torudbakken

Daniel John Pelham Wilkinson

A system comprising a gateway for interfacing external data sources with one or more accelerators. The gateway comprises a plurality of virtual gateways, each of which is configured to stream data from the external data sources to one or more associated accelerators. The plurality of virtual gateways are each configured to stream data from external data sources so that the data is received at an associated accelerator in response to a synchronisation point being obtained by a synchronisation zone. Each of the virtual gateways is assigned a virtual ID so that when data is received at the gateway, data can be delivered to the appropriate gateway.

Virtualised gateways

A computer system comprises a work accelerator, a gateway the transfer of data to the accelerator from external storage, the accelerator executes a first compiled code sequence to perform computations on data transferred to the accelerator from the gateway. The first compiled code sequence comprises a synchronisation instruction indicating a barrier between a compute phase in which the compute instructions are executed and an exchange phase, wherein execution of the synchronisation instruction causes an indication of a pre-compiled data exchange synchronisation point to be transferred to the gateway. The gateway comprises a streaming engine storing a second compiled code sequence in the form of a set of data transfer instructions executable by the streaming engine to perform data transfer operations to stream data through the gateway in the exchange phase, wherein the first and second compiled code sequences are generated as a related set at compile time.

Growing community of inventors

Oslo, Norway

Harald Hoeg