Scaling Up Livelock Verification for Network-on-Chip Routing Algorithms

2022 ◽  
pp. 378-399
Author(s):  
Landon Taylor ◽  
Zhen Zhang
Keyword(s):  
Scaling Up ◽  
Network On Chip ◽  
Routing Algorithms ◽  
On Chip

Comparative Performance Analysis of 
Selected Routing Algorithms by Load Variation of 2-Dimensional Mesh Topology Based 
Network-On-Chip

2021 ◽  
Vol 20 (3) ◽  
pp. 1-6
Author(s):  
Mohammed Shaba Saliu ◽  
Muyideen Omuya Momoh ◽  
Pascal Uchenna Chinedu ◽  
Wilson Nwankwo ◽  
Aliu Daniel
Keyword(s):  
Routing Algorithm ◽  
Adaptive Routing ◽  
Injection Rate ◽  
Network On Chip ◽  
Routing Algorithms ◽  
Comparative Performance ◽  
Traffic Pattern ◽  
Mesh Topology ◽  
Similar Vein ◽  
On Chip

Network-on-Chip (NoC) has been proposed as a viable solution to the communication challenges on System-on-Chips (SoCs). As the communication paradigm of SoC, NoCs performance depends mainly on the type of routing algorithm chosen. In this paper different categories of routing algorithms were compared. These include XY routing, OE turn model adaptive routing, DyAD routing and Age-Aware adaptive routing.  By varying the load at different Packet Injection Rate (PIR) under random traffic pattern, comparison was conducted using a 4 × 4 mesh topology. The Noxim simulator, a cycle accurate systemC based simulator was employed. The packets were modeled as a Poisson distribution; first-in-first-out (FIFO) input buffer channel with a depth of five (5) flits and a flit size of 32 bits; and a packet size of 3 flits respectively. The simulation time was 10,000 cycles. The findings showed that the XY routing algorithm performed better when the PIR is low.  In a similar vein, the DyAD routing and Age-aware algorithms performed better when the load i.e. PIR is high.

scholarly journals Congestion-Aware Routing Algorithm for NoC Using Data Packets

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Khurshid Ahmad ◽  
Muhammad Athar Javed Sethi ◽  
Rehmat Ullah ◽  
Imran Ahmed ◽  
Amjad Ullah ◽  
...  
Keyword(s):  
Routing Algorithm ◽  
Network On Chip ◽  
Routing Algorithms ◽  
System On Chip ◽  
Multiprocessor System ◽  
Data Packets ◽  
Communication Framework ◽  
Using Data ◽  
On Chip ◽  
Congestion Aware

Network on Chip (NoC) is a communication framework for the Multiprocessor System on Chip (MPSoC). It is a router-based communication system. In NoC architecture, nodes of MPSoC are communicating through the network. Different routing algorithms have been developed by researchers, e.g., XY, intermittent XY, DyAD, and DyXY. The main problems in these algorithms are congestion and faults. Congestion and faults cause delay, which degrades the performance of NoC. A congestion-aware algorithm is used for the distribution of traffic over NoC and for the avoidance of congestion. In this paper, a congestion-aware routing algorithm is proposed. The algorithm works by sending congestion information in the data packet. The algorithm is implemented on a 4 × 4 mesh NoC using FPGA. The proposed algorithm decreases latency, increases throughput, and uses less bandwidth in sharing congestion information between routers in comparison to the existing congestion-aware routing algorithms.

scholarly journals A New Efficient and Reliable Dynamically ReconfigurableNetwork-on-Chip

2012 ◽  
Vol 2012 ◽  
pp. 1-16 ◽  
Author(s):  
Cédric Killian ◽  
Camel Tanougast ◽  
Fabrice Monteiro ◽  
Abbas Dandache
Keyword(s):  
Error Detection ◽  
Routing Algorithm ◽  
Network On Chip ◽  
Routing Algorithms ◽  
Data Packet ◽  
Reliable Operation ◽  
Detection Mechanism ◽  
Dynamically Reconfigurable ◽  
On Chip ◽  
Online Error Detection

We present a new reliableNetwork-on-Chip(NoC) suitable forDynamically Reconfigurable Multiprocessors on Chipsystems. The proposedNoCis based on routers performing online error detection of routing algorithm and data packet errors. Our work focuses on adaptive routing algorithms which allow to bypass faulty components or processor elements dynamically implemented inside the network. The proposed routing error detection mechanism allows to distinguish routing errors from bypasses of faulty components. The new router architecture is based on additional diagonal state indications and specific logic blocks allowing the reliable operation of theNoC. The main originality in the proposedNoCis that only the permanently faulty parts of the routers are disconnected. Therefore, our approach maintains a high run time throughput in theNoCwithout data packet loss thanks to a self-loopbackmechanism inside each router.

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