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Creators/Authors contains: "Ross, Rob"

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  1. ; ; ; ; (, IPDPS .... [proceedings])
    Dragonfly networks are being widely adopted in high-performance computing systems. On these networks, however, interference caused by resource sharing can lead to significant network congestion and performance variability. We present a comparative analysis exploring the trade-off between localizing communication and balancing network traffic. We conduct trace-based simulations for applications with different communication patterns, using multiple job placement policies and routing mechanisms. We perform an in-depth performance analysis on representative applications individually and show that different applications have distinct preferences regarding localized communication and balanced network traffic. We further demonstrate the effect of external network interference by introducing background traffic and show that localized communication can help reduce the application performance variation caused by network sharing. 
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    Accepted Manuscript Full Text Available