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...ifferent bandwidths set during the design process to meet the QoS requirements. High performance wormhole based interconnect systems often include virtual channels (VCs) which increase NoC throughput =-=[16]-=-. Furthermore, virtual channels must be included when links have different capacities to allow the multiplexing of several slow streams over a high bandwidth link. Flits of different VCs that contend ...

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...its of different flows are interleaved on links, the approximation t should account for the transmission time of other flits of i j on the same link. We use a modification of the basic M/M/1 modeling =-=[17]-=- as an approximation of the flit interleaving delay: i 1 t j (1) 1 i C l j j where i j (defined above) is the bandwidth consumed by all flows other than flow i on link j. Formally: i f f m (2) j f f |...

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...requires small buffer space and is simple to implement. However, performance evaluation and customization process of wormhole based NoCs heavily rely on simulations as no existing analysis (e.g., [8]-=-=[15]-=-) accounts for the combination of heterogeneous traffic patterns and virtual channels. Unfortunately, these are both fundamental characteristics of NoC interconnect. The use of simulations makes the t...

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...1-0-6/DATE06 © 2006 EDAA 9 network links: insufficient allocation will not meet performance requirements while lavish allocation will result in excessive power and area consumptions. Wormhole routing =-=[7]-=- is an increasingly common interconnect scheme for NoC as it minimizes communication latencies, requires small buffer space and is simple to implement. However, performance evaluation and customizatio...

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... Chip (SoC) is expected to be significantly larger than today. Traditional interconnection schemes might no longer be adequate for these systems. The concept of Network on a Chip (NoC) (introduced in =-=[1]-=-, [2]) suggests that different modules would be connected by a simple network of shared links and routers. As was analyzed in [3], NoC power and area costs scale much better than shared bus, segmented...

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... power and area costs scale much better than shared bus, segmented bus or dedicated point to point connections. NoC is customized for a particular SoC through an automatic network design phase (e.g., =-=[4]-=-, [5], [6]). The goal of the link capacity design process is to minimize the network cost (in terms of area and power) while maintaining the required quality of service (QoS), defined in terms of acce...

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...r and area costs scale much better than shared bus, segmented bus or dedicated point to point connections. NoC is customized for a particular SoC through an automatic network design phase (e.g., [4], =-=[5]-=-, [6]). The goal of the link capacity design process is to minimize the network cost (in terms of area and power) while maintaining the required quality of service (QoS), defined in terms of acceptabl...

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... area costs scale much better than shared bus, segmented bus or dedicated point to point connections. NoC is customized for a particular SoC through an automatic network design phase (e.g., [4], [5], =-=[6]-=-). The goal of the link capacity design process is to minimize the network cost (in terms of area and power) while maintaining the required quality of service (QoS), defined in terms of acceptable pac...

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...r these systems. The concept of Network on a Chip (NoC) (introduced in [1], [2]) suggests that different modules would be connected by a simple network of shared links and routers. As was analyzed in =-=[3]-=-, NoC power and area costs scale much better than shared bus, segmented bus or dedicated point to point connections. NoC is customized for a particular SoC through an automatic network design phase (e...

Citation Context

...es, requires small buffer space and is simple to implement. However, performance evaluation and customization process of wormhole based NoCs heavily rely on simulations as no existing analysis (e.g., =-=[8]-=--[15]) accounts for the combination of heterogeneous traffic patterns and virtual channels. Unfortunately, these are both fundamental characteristics of NoC interconnect. The use of simulations makes ...