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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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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：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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公开(公告)号：US11615038B2
公开(公告)日：2023-03-28
申请号：US16235612
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Brian Manula , Harald Høeg
IPC: 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 accelerator interface for connection to the subsystem to enable transfer of batches of data between the subsystem and the gateway; a data connection interface for connection to external storage for exchanging data between the gateway and storage; a gateway interface for connection to at least one second gateway; a memory interface connected to a local memory associated with the gateway; and a 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 are selectively via at least one of the accelerator interface, data connection interface, gateway interface and memory interface.
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Patent Agency Ranking
公开(公告)号：US10922063B2
公开(公告)日：2021-02-16
申请号：US16235109
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Daniel John Pelham Wilkinson , Brian Manula , Harald Høeg
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：US20200012609A1
公开(公告)日：2020-01-09
申请号：US16235612
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Brian Manula , Harald Høeg
IPC: G06F13/16 , G06F12/0868 , G06F12/0813
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 accelerator interface for connection to the subsystem to enable transfer of batches of data between the subsystem and the gateway; a data connection interface for connection to external storage for exchanging data between the gateway and storage; a gateway interface for connection to at least one second gateway; a memory interface connected to a local memory associated with the gateway; and a 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 are selectively via at least one of the accelerator interface, data connection interface, gateway interface and memory interface.
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公开(公告)号：US20200014631A1
公开(公告)日：2020-01-09
申请号：US16235265
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Daniel John Pelham Wikinson , Richard Luke Sothwell Osborne , Stephen Felix , Matthew David Fyles , Brian Manula , Harald Høeg
IPC: H04L12/801 , H04L29/06 , G06F15/173 , G06F15/167 , H04L29/08
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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公开(公告)号：US20200012534A1
公开(公告)日：2020-01-09
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：US20200012482A1
公开(公告)日：2020-01-09
申请号：US16235109
申请日：2018-12-28
Applicant: Graphcore Limited
Inventor： Ola Tørudbakken , Daniel John Pelham Wilkinson , Brian Manula , Harald Høeg
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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