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Time stamp synchronization method, electronic device and heterogeneous equipment

An electronic device and timestamp technology, applied in the field of heterogeneous computing, can solve the problem of inaccurate data processing of the main co-processor and achieve the effect of accurate data processing

Active Publication Date: 2019-06-25
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, this application provides a time stamp synchronization method, electronic equipment and heterogeneous equipment to solve the technical problem of inaccurate data processing in the main co-processor in the prior art

Method used

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  • Time stamp synchronization method, electronic device and heterogeneous equipment
  • Time stamp synchronization method, electronic device and heterogeneous equipment
  • Time stamp synchronization method, electronic device and heterogeneous equipment

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0047] refer to figure 1 , is an implementation flowchart of a time stamp synchronization method according to Embodiment 1 of the present application, and the method is applicable to a first processor in a heterogeneous device, that is, a main processor. There is also a second processor, a coprocessor, in the heterogeneous device. The method in this embodiment is mainly used to synchronize the time stamp of the second processor in the first processor.

[0048] In this embodiment, ...

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Abstract

The invention discloses a timestamp synchronization method, an electronic device and heterogeneous equipment. The method comprises: a first processor responds to a synchronization instruction of a second processor and records the current first moment of the first processor, wherein data transmission is conducted between the first processor and the second processor through a hardware transmission line, and the transmission rate of the hardware transmission line is higher than a threshold value; the first processor obtains a second moment sent by the second processor, wherein the second moment is a moment recorded when the second processor triggers the synchronization instruction; and after receiving the task data transmitted by the second processor, the first processor performs data processing on the task data based on the first moment, the second moment and the data moment in the task data.

Description

technical field [0001] The present application relates to the technical field of heterogeneous computing, and in particular to a time stamp synchronization method, electronic equipment and heterogeneous equipment. Background technique [0002] In heterogeneous devices, coprocessors send data to the main processor for data processing. [0003] However, since the coprocessor and the main processor are in different systems, there is a difference between the time stamps of the two, resulting in inaccurate or even impossible data processing by the main processor. Contents of the invention [0004] In view of this, the present application provides a time stamp synchronization method, electronic equipment and heterogeneous equipment to solve the technical problem of inaccurate data processing in the main co-processor in the prior art. [0005] This application provides a timestamp synchronization method, including: [0006] The first processor records the current first moment o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/48
Inventor 孙峰
Owner LENOVO (BEIJING) LTD
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