NoC Transport Stations Reduce Router Hop Delay
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Solution Overview
Problem
Conventional Network on Chip (NoC) systems experience significant transport delays due to data passing through multiple routers.
Innovation Solution
The proposed computing system incorporates a plurality of routers and transport stations, with first and second paths connecting adjacent routers and transport stations respectively, allowing data to be transmitted via a combination of these paths to reduce delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If data is transported through multiple routers in a conventional NoC system, then data can reach destination nodes, but transport delay increases significantly
Solution Approach 1:
The system segments the data transport function by introducing transport stations that operate independently from routers. Data transport is divided into two path types: first paths through routers and second paths through transport stations. This segmentation allows data to bypass router processing delays by utilizing dedicated transport stations for direct data movement, thereby reducing overall transport delay while maintaining functional separation between routing and transport operations.
2Loss of time
If data is transported only through router paths, then routing control is simplified, but transport delay increases due to multiple router hops
Solution Approach 1:
Transport stations serve as intermediary components between routers and destination nodes. These intermediaries provide dedicated data transport paths (second paths) that operate parallel to the traditional router-based first paths. The transport stations receive data from routers or directly from source nodes and forward it to destination nodes or routers, creating additional transport routes that reduce delay while maintaining path flexibility through mode selection between first and second paths.
3Productivity
If transport stations are introduced to create shortcut paths, then transport delay is reduced, but system complexity increases
Solution Approach 1:
The transport stations are designed with multi-functionality to handle various data transport scenarios. They can transport data directly from source nodes to destination nodes, from source nodes to routers, from routers to destination nodes, and between routers. This universal transport capability allows a single transport station architecture to serve multiple purposes, reducing the need for additional specialized components and thereby limiting the increase in system complexity while maintaining high data transmission efficiency.
Data Source
AI summary
A computing system comprising: routers, configured to transport data to nodes; transport stations, configured to transport the data to the nodes through the routers; first paths, provided between adjacent ones of the routers; second paths, provided between adjacent ones of the transport stations. The computing system operates in a first mode, which transmits the data from a first target device to a second target device via the first paths and the second paths.