公开(公告)号：US20190220257A1

公开(公告)日：2019-07-18

申请号：US16360951

申请日：2019-03-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongyuan LIU ,  Cho-LI WANG ,  KingTin LAM ,  Huanxin LIN ,  Bin ZHANG ,  Junchao MA

IPC: G06F8/41

Abstract: Embodiments of the present invention disclose a method and an apparatus for detecting inter-instruction data dependency. The method comprises: comparing a thread number corresponding to a historical access operation with a thread number corresponding to a write access operation, if the thread number corresponding to the write access operation is less than the thread number corresponding to the historical access operation, which indicates existence of data dependency for a to-be-detected instruction, terminating the detection; or comparing a thread number corresponding to a historical write access operation with a thread number corresponding to a read access operation, if the thread number corresponding to the read access operation is less than the thread number corresponding to the historical write access operation, which indicates existence of data dependency for the to-be-detected instruction, terminating the detection.

公开(公告)号：US20150293720A1

公开(公告)日：2015-10-15

申请号：US14749869

申请日：2015-06-25

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： KingTin LAM ,  Wangbin Zhu ,  Youliang Yan ,  Cho-Li WANG ,  Jinghao Shi

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/0653 ,  G06F3/067 ,  G06F9/5016 ,  G06F12/1072 ,  G06F12/109 ,  G06F2212/1024 ,  G06F2212/656

Abstract: A method and a related device for determining a management mode of a shared virtual memory page are disclosed. In one example, a method is disclosed that includes monitoring frequency or mode of access operation of at least one process accessing the shared virtual memory page; and changing the management mode of the shared virtual memory page to a shared physical memory mode if the monitored frequency or mode of access operation meets a first set condition and a current management mode of the shared virtual memory page is a distributed shared memory mode. The technical solutions provided in the present disclosure can enhance performance of accessing a shared virtual memory.

Abstract translation: 公开了一种用于确定共享虚拟存储器页面的管理模式的方法和相关设备。 在一个示例中，公开了一种方法，其包括监视访问共享虚拟存储器页面的至少一个进程的访问操作的频率或模式; 以及如果所述监视的访问操作的频率或模式满足第一设定条件，并且所述共享虚拟存储器页面的当前管理模式是分布式共享存储器模式，则将所述共享虚拟存储器页面的管理模式改变为共享物理存储器模式。 本公开中提供的技术方案可以提高访问共享虚拟存储器的性能。