Memory access method, device and system

Abstract

An embodiment of the invention provides a memory access method, device and system and relates to the field of computer system structures. By the memory access method, device and system, the problem of distribution of memory resources in a cluster system is solved and internal communication efficiency of clusters is improved. The memory access method includes steps of judging whether an access address of a memory access command is an offsite memory address or not by receiving the memory access command; if the access address of the memory access command is the offsite memory address, looking up corresponding parameter information of the access address in an external address mapping table according to the external address mapping table and acquiring identification of an offsite node where the access address is located; generating memory request messages according to the parameter information and transmitting the memory request messages to the offsite node so as to notify the offsite node to access an offsite memory according to the memory request messages to obtain request data, completing memory access and generating response messages; receiving and analyzing the response messages to obtain request data by a communication module. The memory access method, device and system in the embodiment are applied to the memory access technology of compute cluster systems.

Description

technical field [0001] The invention relates to the field of computer architecture, in particular to a memory access method, device and system. Background technique [0002] The computer cluster system is composed of a large number of service nodes, and these nodes complete specific computing tasks through collaborative processing between software and hardware. When completing computing tasks, different nodes in the computer cluster play different roles, so they have different resource requirements. Among them, in the master-slave cluster system, the master node is responsible for task distribution, and the slave nodes are responsible for calculation and send the calculation results to master node. Here, the slave nodes have high computing power requirements and memory requirements, but due to the different memory requirements, there will often be uneven memory allocation between the master and slave nodes, resulting in unbalanced resource utilization in the cluster system....

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a memory access method, device, and system, which solve the problem of memory resource allocation in a cluster system and improve the efficiency of internal communication within the cluster

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