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Network-on-chip routing centralized control system and device and adaptive routing control method

A centralized control system and network-on-chip technology, which is applied in the field of network-on-chip routing centralized control systems and devices and adaptive routing control, can solve problems such as poor network load balance, no global scheduling, and increased complexity. Effects of network bandwidth utilization, efficiency improvement, and network load balance

Active Publication Date: 2014-08-20
LOONGSON TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The advantage of the adaptive routing control method is that it can automatically balance the network load and improve the utilization of network bandwidth, but at the same time it brings an increase in complexity.
[0005] In the prior art, one of the main methods of on-chip network is "clock asynchronous", that is, the transmission of each data packet is relatively independent, there is no need to maintain a global unified clock, and there is no global scheduling. The routing control method can only obtain the congestion information of the surrounding adjacent routers, and cannot balance the network load well

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[0128] As another possible implementation, the B value is normalized, B ′ = B TD = Σ i ∈ P ( 1 - t i T ) ( 1 - d i D ) C i = Σ i ∈ P b i C i , The normalization coefficient bi is pre-calculated, and if it is less than a certain threshold, the influence of the channel is directly ignored.

[0129] In the embodiment of the present invention, ...

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Abstract

The invention discloses a network-on-chip routing centralized control system and device and an adaptive routing control method. The network-on-chip routing centralized control system comprises a plurality of routers, a crossbar switch connecting line and a centralized control device. The global information of network-on-chip data transmission is collected and processed to provide more accurate and even stronger initial data for the adaptive routing control method, packet information is combined to carry out analysis and calculation to obtain routing jump information of packet jump, the collecting and processing for global obstruction and information of network-on-chip are realized, and the generated real-time global information is utilized to complete adaptive network-on-chip routing control.

Description

technical field [0001] The invention relates to the technical field of routing architecture and routing control of on-chip multi-core networks, in particular to a centralized on-chip network routing centralized control system and device and an adaptive routing control method. Background technique [0002] With the increasing integration of integrated circuits, more and more IP (Intellectual Property) functional units are integrated on the chip. The bus structure used in traditional industries is prone to deadlock, lower bus frequency, and increased connection delay. Become extremely complex and inefficient, Network on chip (Network on chip, NoC) as a new design idea began to gradually popularize. The core idea of ​​the network on chip is to divide the system on chip into two subsystems of communication and computing. Among them, the communication system draws lessons from the communication mode of the distributed computing system network, and uses the network structure comp...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L12/725H04L12/803
Inventor 陈云霁陆超钟石强
Owner LOONGSON TECH CORP