sponsored byIEEEACMThe International Conference for High Performance 
Computing, Networking, Storage and Analysis
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SCHEDULE: NOV 16-21, 2014

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Characterizing Application Sensitivity to Network Performance

SESSION: Poster Reception

EVENT TYPE: Posters

TIME: 5:15PM - 7:00PM

AUTHOR(S):Eli Rosenthal, Edgar A. Leon

ROOM:New Orleans Theater Lobby

ABSTRACT:

As systems grow in scale, network performance becomes an important component of the time-to-solution of scientific, message-passing applications. We expect future systems to include 100K nodes connected through a high-speed interconnect fabric. In this work, we investigate the impact of multirail networking on the performance of a suite of HPC mini-applications that provide simplified source code containing data access patterns and computational characteristics of larger production codes. Our investigation is driven by the following questions: Are applications limited by network performance? Can they leverage improvements in network bandwidth? What type of network operations and message sizes do they use? This work provides a better understanding of the network requirements of scientific applications and informs the selection and procurement of future systems.

Chair/Author Details:

Eli Rosenthal - Brown University

Edgar A. Leon - Lawrence Livermore National Laboratory

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