@inproceedings{90f8b42282354b72870291c12f02764c,
title = "Application Performance Impact on Trimming of a Full Fat Tree InfiniBand Fabric",
abstract = "We measured InfiniBand traffic in our full fat tree fabric and measured performance impact of trimming the fabric on our major application kernels. Based on traffic pattern analysis and application performance impact we infer that a 2:1 trimmed fat tree is a cost effective alternative to a full fat tree for this specific set of applications. The methodology we used may be useful for others who are performing design trade-offs for HPC systems. We also propose that switch hardware vendors design director class switches with trimmed fat tree options that optimize per port costs.",
keywords = "Fat-tree, InfiniBand, Topology",
author = "Ghosh, \{Siddhartha S.\} and Davide Delvento and Rory Kelly and Irfan Elahi and Nathan Rini and Storm Knights and Benjamin Matthews and Thomas Engel and Ben Jamroz and Shawn Strande",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2nd IEEE International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era, HiPINEB 2016 ; Conference date: 12-03-2016",
year = "2016",
month = apr,
day = "21",
doi = "10.1109/HIPINEB.2016.14",
language = "English",
series = "Proceedings - 2nd IEEE International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era, HiPINEB 2016",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "49--54",
booktitle = "Proceedings - 2nd IEEE International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era, HiPINEB 2016",
address = "United States",
}