Characterizing the performance of Kraken's lustre file system

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Description

Application I/O performance of the lustre filesystem on the National Institute for Computational Science (NICS) Cray XT5 can vary significantly. For example we have observed that the I/O performance of the high-resolution Community Climate System Model (CCSM) can vary from 5x to 18x. We have developed a set of tools for analyzing and visualizing the I/O performance of large parallel computations at NICS. In particular we analyze the impact job placement has on network congestion and read and write bandwidth to the lustre filesystem.

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Author(s): Nick Jones-NCAR/UCAR
OpenSky Citable URL: http://n2t.net/ark:/85065/d7t43vr9
Title: Characterizing the performance of Kraken's lustre file system
Date: 2009-08-05
Resource Type: animation/moving image
Conference: Summer Internships in Parallel Computational Science 2009
Peer Review: Non-refereed
Copyright Information: Copyright Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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Characterizing the performance of Kraken's lustre file system

Description

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