一种数据访问方法、装置及系统制造方法及图纸

一种数据访问方法、装置及系统，涉及计算机领域，可降低GPU访问数据时的访问延时。该方法包括：GPU获取第一内存页的访问请求，该访问请求中携带有第一内存页的物理地址(101)；GPU根据第一内存页的物理地址以及预置的物理地址与内存页的标识之间的对应关系，查找最近最多访问MRU表中与第一内存页的物理地址对应的MRU表项中是否包含第一内存页的标识(102)；若第一内存页的物理地址对应的MRU表项中不包含第一内存页的标识，则GPU向中央处理器CPU发送页搬运请求，以使得CPU根据页搬运请求将第一内存页存储至显存中(103)；GPU从显存中访问第一内存页(104)。

Data access method, device and system

The invention relates to a data access method, a device and a system, which relates to the computer field and can reduce the access delay when GPU accesses data. The method includes: obtaining the first page of the GPU memory access request, the access request carries the physical address of the first memory page (101); GPU according to the relationship between the physical address of the first memory page and the identification of the physical address and the preset memory page, find the most recent access to the corresponding physical address in the MRU table and the first memory page MRU table is contained in the first memory page identifier (102); if the first memory page MRU table does not contain the physical address corresponding to the first memory page logo, GPU to the central processor CPU sends a request to the page handling, according to the CPU page handling request will first memory page stored in memory (103); GPU access to the first memory pages from memory (104).

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。

【技术特征摘要】
【国外来华专利技术】PCT国内申请，...

【专利技术属性】
技术研发人员：汪涛，张广飞，宋风龙，
申请(专利权)人：华为技术有限公司，
类型：发明
国别省市：广东,44