Method of transferring data in parallel system, and parallel system for performing the same

    公开(公告)号:US10725667B2

    公开(公告)日:2020-07-28

    申请号:US15874322

    申请日:2018-01-18

    发明人: Jaejin Lee Gangwon Jo

    摘要: Disclosed herein are a method of transferring data in a parallel system including a main device and at least one accelerator, and a parallel system for performing the method. The method of transferring data in a heterogeneous system including a main device and at least one accelerator includes: turning off a write permission for a first main memory area corresponding to a first accelerator memory area where input data for a computation task is stored; performing the computation task by using the at least one accelerator; and turning off a read permission for a second main memory area corresponding to a second accelerator memory area where output data for the computation task is stored, in the state in which data of the second accelerator memory area has not been transferred to the second main memory area.

    METHOD AND SYSTEM FOR MANAGING INTERMEDIATE REPRESENTATION FROM PROGRAM

    公开(公告)号:US20240118876A1

    公开(公告)日:2024-04-11

    申请号:US18542563

    申请日:2023-12-15

    IPC分类号: G06F8/41

    CPC分类号: G06F8/41

    摘要: A method for managing an intermediate representation from a program is executed by one or more processors, and includes extracting, from the program, information on data for input and output and information on operation, generating an intermediate representation from the program using the extracted information on data and the extracted information on operation, storing, in a database, a corresponding relationship between the program and the intermediate representation, storing execution information on operation of the intermediate representation, and deleting at least a part of the intermediate representation based on the execution information.

    Shared virtual memory management apparatus for providing cache-coherence
    7.
    发明授权
    Shared virtual memory management apparatus for providing cache-coherence 有权
    用于提供高速缓存一致性的共享虚拟内存管理装置

    公开(公告)号:US09208088B2

    公开(公告)日:2015-12-08

    申请号:US13733396

    申请日:2013-01-03

    摘要: A shared virtual memory management apparatus for ensuring cache coherence. When two or more cores request write permission to the same virtual memory page, the shared virtual memory management apparatus allocates a physical memory page for the cores to change data in the allocated physical memory page. Thereafter, changed data is updated in an original physical memory page, and accordingly it is feasible to achieve data coherence in a multi-core hardware environment that does not provide cache coherence.

    摘要翻译: 一种用于确保高速缓存一致性的共享虚拟内存管理装置。 当两个或多个核心向相同的虚拟内存页面请求写入权限时,共享虚拟内存管理装置为核心分配物理存储器页面以改变所分配的物理存储器页面中的数据。 此后,在原始物理存储器页面中更新改变的数据,因此在不提供高速缓存一致性的多核硬件环境中实现数据一致性是可行的。