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Reporter: Bo-Yi Shiu Date: 2011/05/27 Virtual Point-to-Point Connections for NoCs Mehdi Modarressi,...
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Transcript of Reporter: Bo-Yi Shiu Date: 2011/05/27 Virtual Point-to-Point Connections for NoCs Mehdi Modarressi,...
Reporter: Bo-Yi Shiu
Date: 2011/05/27
Virtual Point-to-Point Connections for NoCs
Mehdi Modarressi, Arash Tavakkol, and Hamid Sarbazi-Azad
IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND
SYSTEMS, VOL. 29, NO. 6, JUNE 2010
Outline
Introduction Proposed NoC Architecture Static VIPs Dynamic VIPs Experimental Results Conclusion
Introduction
Among different on-chip communication mechanisms, point-to-point connections where packets travel on dedicated pipelined wires which directly connect their source and destination nodes can yield the ideal performance and power results.
Poor scalability and considerable area overhead are the important drawbacks of dedicated links.
Static VIPs
Most multicore SoC programs have a small number of communication flows through which each core communicate with a small number of other cores. Moreover, the traffic pattern of such applications is known in advance.
Static VIPs
Physically map the cores of the application into different nodes of a mesh-connected NoC
Establish as many VIP connections as possible for the communication flows of the application.
Direct the flows for which a VIP could not be constructed through packet-switched network, in such a way that the total power consumption and latency of the NoC is minimized.
Dynamic VIPs
This approach is useful in the cases where it is not possible to know in advance the exact communication pattern of running applications.