SCHEDULE: NOV 16-22, 2013
When viewing the Technical Program schedule, on the far righthand side is a column labeled "PLANNER." Use this planner to build your own schedule. Once you select an event and want to add it to your personal schedule, just click on the calendar icon of your choice (outlook calendar, ical calendar or google calendar) and that event will be stored there. As you select events in this manner, you will have your own schedule to guide you through the week.
Predictions of Large-scale QMCPack I/Os on Titan Using Skel
SESSION: Research Poster Reception
EVENT TYPE: Posters, Electronic Posters, and Education Posters
TIME: 5:15PM - 7:00PM
AUTHOR(S):Matthew Wezowicz, Michael Matheny, Stephen Herbein, Jeremy Logan, Jeongnim Kim, Jaron Krogel, Scott Klasky, Michela Taufer
ROOM:Mile High Pre-Function
ABSTRACT:
Large-scale applications such as the Quantum Monte Carlo code QMCPack face a major challenge to preserve their scalability when fine-grained data are gathered and stored to disk or used for in-situ analysis.
Using an IO framework such as ADIOS allows us to address the trade-off by deploying different IO methods with little code modifications. Still the search for the most suitable methods and settings can be challenging. Ideally such a search can be conducted on a tool such as Skel that allows us to decouple the IO from the computation in real applications and to tune the IO on real supercomputers.
To allow tuning for applications with unbalanced generation of IO, we extended Skel to integrate the IO variability shown real world applications. We validated the Skel results against actual QMCPack IO performance data and showed that Skel results can be used to predict IO and steer choices for applications.
Chair/Author Details:
Matthew Wezowicz - University of Delaware
Michael Matheny - University of Delaware
Stephen Herbein - University of Delaware
Jeremy Logan - Oak Ridge National Laboratory
Jeongnim Kim - Oak Ridge National Laboratory
Jaron Krogel - Oak Ridge National Laboratory
Scott Klasky - Oak Ridge National Laboratory
Michela Taufer - University of Delaware
Click here to download .ics calendar file
