Data-transmission system between nodes, and device and method

Abstract

The invention discloses a data transmission system, a device, and a method with message transmission way among all the nodes on a non-consistent memory access platform. The data transmission system is used for transmitting data among all the nodes on the non-consistent memory access platform, the nodes comprise the data transmission device connected with an operating system protocol stack; the system is characterized in that, the data transmission device comprises: an allocation module of shared communication buffer area used for dividing a shared communication buffer area and a control area of the shared communication buffer area, as well as announcing the position and size of the shared communication buffer area to other nodes; a bottom-layer communication module used for messaging via the shared communication buffer area among the nodes; and a virtual network adapter card simulating the bottom-layer communication module as the network adapter card and connected with the protocol stack of the nodes. The invention has the advantages that system doesn't need particular hardware support with transparent, high-efficient, and safe data transmission.

Description

technical field [0001] The invention relates to computer network communication technology, in particular to a system, device and method for data transmission between nodes in a non-uniform memory access (NonUniform Memory Access Architecture, NUMA) platform. Background technique [0002] In the prior art, there are usually two data transmission methods between various multi-core processors on a non-uniform memory access (NUMA) platform or operating systems running on multiple processors: one is through shared memory, using memory Copying is used to realize data transmission; the other is through message passing, which uses communication hardware-based communication to transmit data. [0003] Currently, the most commonly used method is message passing, which transmits data based on communication hardware (such as a hardware network card). The data transmission process of this communication method is: the sender copies the message to be transmitted from the memory to the hard...

AI Technical Summary

Problems solved by technology

It can be seen that one of the shortcomings of the above-mentioned traditional message passing method to transmit data is that the communication process is cumbersome

[0004] At the same time, because the traditional message passing method needs to access the slow external bus (such as the hardware network card on the PCI bus) when transmitting data, the communication speed is relatively slow.

Another disadvantage of the existing technology is that communication data is transmitted through a hardware-based communication network, and its reliability is low

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