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Title:Opportunities and Strategies for I/O Auto-Tuning
Authors:Renato Miceli, 2013
Abstract: In the HPC community, I/O issues are both one of the most common bottleneck and scalability limiting factors in codes, and one scientists and developers alike are the least aware of. For this, automating the I/O tuning is likely to lead to significant performance improvements, especially since the corresponding manual tuning is a complex task often out of reach of users and code developers. In this talk we will discuss the opportunities and possible approaches to automatically tuning the I/O of HPC software. We will introduce some of the most common I/O issues one can encounter while developing or using a HPC code, examine their relationship to the machine hardware, OS and filesystem settings, and explore prospective automatic tuning strategies adapted to address each one of these issues.
ICHEC Project:
Publication:Talk at the Dagstuhl Seminar 13401, "Automatic Application Tuning for HPC Architectures". Dagstuhl, Germany. October 2013
URL: http://dx.doi.org/10.4230/DagRep.3.9.214
Keywords: Parallel Computing; Programming Tools; Performance Analysis and Tuning
Status: Submitted

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