One-cycle router on chip based on quick path technology

Abstract

The invention discloses a one-cycle router on chip based on a quick path technology. The one-cycle router on chip consists of P input ports, a quick arbitration module, a transmission arbitration module, a path arbitration module, an anticipating signal management module, a crossbar switch and P output ports, wherein the input port consists of a path allocation module, a buffer storage module, a quick path module, a virtual path module, a transmission request transmission unit and a path request transmission unit; the quick arbitration module consists of a first response control part and P quick arbitration parts; the path arbitration module consists of a path request distribution part, P path arbitration parts and a second response control unit; the transmission arbitration module consists of a transmission request distribution part, P transmission arbitration parts and a third response control part; and the anticipating signal management module consists of P computing storage parts and P signal driving parts. The one-cycle router on chip can realize one-cycle forwarding operations, and is applied to various routing algorithms.

Description

technical field [0001] The invention relates to an internal communication node of a microprocessor chip, in particular to an on-chip router supporting single-cycle message forwarding. Background technique [0002] After nearly 30 years of development, semiconductor technology has the ability to integrate billions of transistors on a single chip, which has created a steady stream of power for the development of high-performance microprocessors, but also brought new opportunities to chip design with challenges. At present, regarding how to utilize numerous transistor resources, the industry generally realizes that "many-core" processors, as the most effective means to improve computing performance, will become the mainstream development trend of future microprocessor structures. In this context, a single chip integrates hundreds of processor cores, and the performance bottleneck of the microprocessor will be transferred to the interconnection and communication between many pr...

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention is to propose an on-chip router with a single-cycle forwarding feature for the existing on-chip routers that need to spend multiple clock cycles to forward messages, or support single-cycle transmission but have narrow applicability and poor versatility. , as long as there is no conflict between the messages, the single-cycle forwarding operation can be realized, which is suitable for various routing algorithms and traffic loads, and the hardware complexity is low, providing lower transmission delay and higher communication bandwidth for the on-chip interconnection network

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