Description: SC'18 Workshop Paper & Presentation -- Models used in high performance computing often require that large amounts of data be written to disk. In order to achieve a more accurate simulation there is a desire to increase model resolution, which leads to an increase in the amount of data being written to disk. However, this increase in model resolution is typically met with prohibitive performance degradation, a significant portion of which is a result of the massive increase in the amount of data being generated and written to disk. In this presentation, we present work on the implementation and testing of asynchronous I/O in the Navy Global Environment Model (NAVGEM) using the Earth System Modeling Framework. We observed up to a 38% decrease in model runtime for simulations on 6,600 processors, and up to a 45% decrease in model runtime for simulations on 8,600 processors.
Presenter(s): Dr. Matt Turner, PETTT SAIC
Location: Webcast
Date & Time: February 13, 2019, 1:00p - 2:00p ET
Distribution Statement D. Distribution authorized to the Department of Defense and U.S. DoD contractors only, Administrative or Operational Use, 13 February 2019. Other requests for this document shall be referred to the High Performance Computing Modernization Office, 3909 Halls Ferry Road, Vicksburg, MS 39180.