Method and device for determining data transmission path of network-on-chip, and storage medium

Abstract

The invention discloses a method for determining a data transmission path of a network-on-chip. The method comprises the following steps: reading link state information of own links respectively collected and cached by each routing node; calculating a target path for data transmission between every two routing nodes according to the state information of each link and a target transmission strategy; and respectively writing each target path into each corresponding routing node. According to the method, in the process of determining the data transmission path of the network-on-chip, the influence on the data transmission efficiency is reduced, and the timeliness of the determined target path is improved. The invention further discloses a device for determining the data transmission path of the network-on-chip and a computer readable storage medium, which all have the above beneficial effects.

Description

technical field [0001] The present invention relates to the field of on-chip networks, in particular to a method and device for determining a data transmission path of an on-chip network, and a computer-readable storage medium. Background technique [0002] At present, network-on-chip (NoC) is a widely used communication method of system-on-chip (SoC), and as the chip structure becomes more and more complex, the research and practice of network-on-chip continue to advance , various network structures have been proposed one after another. Generally speaking, most of the on-chip networks still adopt the form of two-dimensional mesh (2DMesh), such as figure 1 Shown is a schematic structural diagram of a network on chip provided in the prior art. Each routing node (module / module) of the two-dimensional mesh (2DMesh) network is connected to its routing nodes in the four directions of east, west, north, south, forming a grid structure, and the communication link between every two...

AI Technical Summary

Problems solved by technology

In the method of the prior art, when the number of routing nodes in the network on chip is large, on the one hand, when collecting the link state information of each routing node in the network on chip, it needs to consume a large amount of data transmission resources, thereby affecting the data transmission efficiency; On the one hand, when the sending nodes determine the target path according to the link information collected by themselves, they tend to tend to the same target path, which will cause data congestion on the target path, thereby further affecting the efficiency of data transmission; and, When the data transmission is congested, it will further lead to a long delay for the sending node to obtain the link state information, that is, the real-time performance of the link state information used to determine the target path is poor, so that the determined target path has not adapted to the changed on-chip network state

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