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公开(公告)号：US11740946B2
公开(公告)日：2023-08-29
申请号：US16235383
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Daniel John Pelham Wilkinson , Brian Manula , Harald Høeg
Abstract: A gateway in a computing system for interfacing a host with a subsystem for acting as a work accelerator to the host, the gateway having: an accelerator interface for enabling the transfer of batches of data to the subsystem at pre-compiled data exchange synchronisation points attained by the subsystem; a data connection interface for receiving data to be processed from storage; and a gateway interface for connection to a third gateway. The gateway is configured to store a number of credits indicating at least one of: the availability of data for transfer to the subsystem at a pre-compiled data exchange synchronisation point; and the availability of storage for receiving data from the subsystem at a pre-compiled data exchange synchronisation point. The gateway uses these credits to control whether or not synchronisation barrier is passed by transmitting synchronisation requests upstream to the third gateway or simply acknowledging the requests received.
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公开(公告)号：US11119952B2
公开(公告)日：2021-09-14
申请号：US16460666
申请日：2019-07-02
Applicant: Graphcore Limited
Inventor： Ola Torudbakken , Brian Manula
IPC: G06F13/38 , G06F13/16 , G06F12/0813 , G06F12/0868 , G06F9/38 , G06F9/50 , H04L12/54 , H04L12/70
Abstract: A gateway for use in a computing system to interface a host with the subsystem for acting as a work accelerator to the host, the gateway having an streaming engine for controlling the streaming of batches of data into and out of the gateway in response to pre-compiled data exchange synchronisation points attained by the subsystem, wherein the streaming of batches of data is selectively via at least one of an accelerator interface, a data connection interface, a gateway interface and an memory interface, wherein the streaming engine is configured to perform data preparation processing of the batches of data streamed into the gateway prior to said batches of data being streamed out of the gateway, wherein the data preparation processing comprises at least one of: data augmentation; decompression; and decryption.
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公开(公告)号：US20210255905A1
公开(公告)日：2021-08-19
申请号：US17313792
申请日：2021-05-06
Applicant: Graphcore Limited
Inventor： Brian Manula
IPC: G06F9/52
Abstract: A work accelerator is connected to a gateway. The gateway enables the transfer of data to the work accelerator from an external storage at pre-compiled data synchronisation points attained by the work accelerator. The work accelerator is configured to send to a register of the gateway an indication of a sync group comprising the gateway. The work accelerator then sends to the gateway, a synchronisation request for a synchronisation to be performed at an upcoming pre-compiled data exchange synchronisation point. The sync propagation circuits are each configured to receive at least one synchronisation request and propagate or acknowledge the synchronisation request in dependence upon the indication of the sync group received from the work accelerator.
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公开(公告)号：US11010208B1
公开(公告)日：2021-05-18
申请号：US16663562
申请日：2019-10-25
Applicant: Graphcore Limited
Inventor： Brian Manula
Abstract: A work accelerator is connected to a gateway. The gateway enables the transfer of data to the work accelerator from an external storage at pre-compiled data synchronisation points attained by the work accelerator. The work accelerator is configured to send to a register of the gateway an indication of a sync group comprising the gateway. The work accelerator then sends to the gateway, a synchronisation request for a synchronisation to be performed at an upcoming pre-compiled data exchange synchronisation point. The sync propagation circuits are each configured to receive at least one synchronisation request and propagate or acknowledge the synchronisation request in dependence upon the indication of the sync group received from the work accelerator.
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公开(公告)号：US20200012533A1
公开(公告)日：2020-01-09
申请号：US16235383
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Daniel John Pelham Wilkinson , Brian Manula , Harald Høeg
Abstract: A gateway in a computing system for interfacing a host with a subsystem for acting as a work accelerator to the host, the gateway having: an accelerator interface for enabling the transfer of batches of data to the subsystem at pre-compiled data exchange synchronisation points attained by the subsystem; a data connection interface for receiving data to be processed from storage; and a gateway interface for connection to a third gateway. The gateway is configured to store a number of credits indicating at least one of: the availability of data for transfer to the subsystem at a pre-compiled data exchange synchronisation point; and the availability of storage for receiving data from the subsystem at a pre-compiled data exchange synchronisation point. The gateway uses these credits to control whether or not synchronisation barrier is passed by transmitting synchronisation requests upstream to the third gateway or simply acknowledging the requests received.
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Patent Agency Ranking
公开(公告)号：US12143244B2
公开(公告)日：2024-11-12
申请号：US17823237
申请日：2022-08-30
Applicant: Graphcore Limited
Inventor： Ola Torudbakken , Daniel John Pelham Wilkinson , Brian Manula
IPC: G06F12/00 , G06F9/22 , G06F9/52 , G06F12/0813 , G06F12/0831 , G06F13/14 , H04L12/66 , H04L67/1097 , H04W88/16 , H04W92/06
Abstract: A gateway for interfacing a host with a subsystem for acting as a work accelerator to the host. The gateway enables the transfer of batches of data to the subsystem at precompiled data exchange synchronisation points. The gateway acts to route data between accelerators which are connected in a scaled system of multiple gateways and accelerators using a global address space set up at compile time of an application to run on the computer system.
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公开(公告)号：US20230054059A1
公开(公告)日：2023-02-23
申请号：US17823237
申请日：2022-08-30
Applicant: Graphcore Limited
Inventor： Ola Torudbakken , Daniel John Pelham Wilkinson , Brian Manula
IPC: H04L12/66 , G06F9/22 , H04L67/1097 , H04W88/16 , H04W92/06 , G06F9/52 , G06F13/14 , G06F12/0813 , G06F12/0831
Abstract: A gateway for interfacing a host with a subsystem for acting as a work accelerator to the host. The gateway enables the transfer of batches of data to the subsystem at precompiled data exchange synchronisation points. The gateway acts to route data between accelerators which are connected in a scaled system of multiple gateways and accelerators using a global address space set up at compile time of an application to run on the computer system.
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公开(公告)号：US11455155B2
公开(公告)日：2022-09-27
申请号：US17159867
申请日：2021-01-27
Applicant: Graphcore Limited
Inventor： Ola Torudbakken , Daniel John Pelham Wilkinson , Brian Manula , Harald Hoeg
Abstract: 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.
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公开(公告)号：US11237882B2
公开(公告)日：2022-02-01
申请号：US16235515
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Daniel John Pelham Wilkinson , Richard Luke Southwell Osborne , Brian Manula , Harald Høeg
Abstract: A gateway for interfacing a host with a subsystem for acting as a work accelerator to the host. The gateway enables the transfer of batches of data to the subsystem at precompiled data exchange synchronisation points. The gateway comprises a streaming engine having a data mover engine and a memory management engine, the data mover engine and memory management engine being configured to execute instructions in coordination from work descriptors. The memory management engine is configured to execute instructions from the work descriptor to transfer data between external storage and the local memory associated with the gateway. The data mover engine is configured to execute instructions from the work descriptor to transfer data between the local memory associated with the gateway and the subsystem.
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公开(公告)号：US10970131B2
公开(公告)日：2021-04-06
申请号：US16235265
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Daniel John Pelham Wilkinson , Richard Luke Southwell Osborne , Stephen Felix , Matthew David Fyles , Brian Manula , Harald Høeg
IPC: G06F9/52 , G06F16/901 , G06F9/30 , G06F9/38 , G06F9/54 , G06F15/167 , G06F15/173 , H04L12/801 , H04L29/06 , H04L29/08 , G06F9/48
Abstract: A gateway for interfacing a host with a subsystem for acting as a work accelerator to the host, the gateway enabling the transfer of batches of data to and from the subsystem at pre-compiled data exchange synchronisation points attained by the subsystem. The gateway is configured to: receive from a storage system data determined by the host to be processed by the subsystem; store a number of credits indicating the availability of data for transfer to the subsystem at each pre-compiled data exchange synchronisation point; receive a synchronisation request from the subsystem when it attains a data exchange synchronisation point; and in response to determining that the number of credits comprises a non-zero number of credits: transmit a synchronisation acknowledgment to the subsystem; and cause the received data to be transferred to the subsystem.
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