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LANS Informal Seminar: Venkatram Vishwanath
April 20, 2011 @ 15:00 CDT
Seminar Title: Towards simulation-time data analysis and I/O acceleration on leadership-class systems
Speaker: Venkatram Vishwanath, Postdoctoral Appointee, MCS
Date/Time: 2011-04-20 15:00
Location: Bldg 240 Conference Center 1404-1405
Description:
The performance mismatch between computing and I/O components of current-generation HPC systems has made I/O a bottleneck for scientific applications. It is therefore critical to make data movement as efficient as possible, and, to facilitate simulation-time data analysis and visualization to reduce the data volume written to storage. Enabling these will be of paramount importance to glean insights from simulations.
In this talk, we will elucidate the analytics and I/O challenges faced by applications at extreme-scale and present various promising approaches. Next, we will give an overview our work in GLEAN – A flexible framework for data-analysis and I/O at extreme scale which leverages data semantics of applications and fully exploits the diverse system topologies and characteristics. We will discuss the performance of GLEAN for simulation-time analysis and I/O with DOE INCITE and ESP simulations at scale on leadership class system