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ViChaR: A Dynamic Virtual Channel Regulator for Network-on-Chip Routers

9 years 6 months ago
ViChaR: A Dynamic Virtual Channel Regulator for Network-on-Chip Routers
The advent of deep sub-micron technology has recently highlighted the criticality of the on-chip interconnects. As diminishing feature sizes have led to increases in global wiring delays, Network-on-Chip (NoC) architectures are viewed as a possible solution to the wiring challenge and have recently crystallized into a significant research thrust. Both NoC performance and energy budget depend heavily on the routers' buffer resources. This paper introduces a novel unified buffer structure, called the dynamic Virtual Channel Regulator (ViChaR), which dynamically allocates Virtual Channels (VC) and buffer resources according to network traffic conditions. ViChaR maximizes throughput by dispensing a variable number of VCs on demand. Simulation results using a cycle-accurate simulator show a performance increase of 25% on average over an equal-size generic router buffer, or similar performance using a 50% smaller buffer. ViChaR's ability to provide similar performance with half th...
Chrysostomos Nicopoulos, Dongkook Park, Jongman Ki
Added 12 Jun 2010
Updated 12 Jun 2010
Type Conference
Year 2006
Where MICRO
Authors Chrysostomos Nicopoulos, Dongkook Park, Jongman Kim, Narayanan Vijaykrishnan, Mazin S. Yousif, Chita R. Das
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