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Application of Performance Analysis Tools on SNL ASC Codes

Agelastos, Anthony M.; Pase, Douglas M.; Amspaugh, Kathleen A.; Dinge, Dennis; Haskell, Karen; Ice, Lisa; Lamb, Justin M.; Rajan, Mahesh; Shaw, Ryan; Stevenson, Joel O.; Brunini, Victor; Clausen, Jonathan; Crawford, Martin J.; Valdez, Greg D.

This milestone 1) exercised a broad set of performance profiling and analysis tools, including tools whose development has been promoted by the ASC program; 2) exercised the tools on two different SNL ASC codes, one Sierra code (Sierra/Aria, a C++ codebase) and one RAMSES code (ITS, a Fortran codebase); and 3) exercised the tools on multiple platforms, including the CTS-1 (e.g., Serrano) and ATS-1 Trinity (e.g., Mutrino) platforms. The milestone generated a plethora of strong and weak scaling, trend and profile data for multiple versions and problem cases for each of the two codes. A wealth of experience was gained with the various tools that included identification of problems, an improved understanding of feature sets, enhanced usage documentation, and insights for future tool-development. Results are provided from a large number and variety of performance analysis runs with the target codes, together with instructions for how to make use of the tools with the codes.

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TYPE SAND Report YEAR 2017
DOIOSTI

FY16 ASC CSSE L2 Milestone #5676 entitled “Impact of Advanced Memory Architectures on ASC Codes” (Final Review)

Glass, Micheal W.; Dinge, Dennis; Keasler, Jeff

The final review for the FY16 ASC Computational Systems and Software Environment (CSSE) L2 Milestone #5676 was conducted on August 17, 2016 at Sandia National Laboratories in Albuquerque, New Mexico. The review panel unanimously agreed that the milestone has been successfully completed

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TYPE Other Report YEAR 2016
DOIOSTI

ASC Trilab L2 Codesign Milestone 2015

Trott, Christian R.; Hammond, Simon; Dinge, Dennis; Lin, Paul T.; Vaughan, Courtenay T.; Cook, Jeanine; Rajan, Mahesh; Edwards, Harold C.; Hoekstra, Robert J.

For the FY15 ASC L2 Trilab Codesign milestone Sandia National Laboratories performed two main studies. The first study investigated three topics (performance, cross-platform portability and programmer productivity) when using OpenMP directives and the RAJA and Kokkos programming models available from LLNL and SNL respectively. The focus of this first study was the LULESH mini-application developed and maintained by LLNL. In the coming sections of the report the reader will find performance comparisons (and a demonstration of portability) for a variety of mini-application implementations produced during this study with varying levels of optimization. Of note is that the implementations utilized including optimizations across a number of programming models to help ensure claims that Kokkos can provide native-class application performance are valid. The second study performed during FY15 is a performance assessment of the MiniAero mini-application developed by Sandia. This mini-application was developed by the SIERRA Thermal-Fluid team at Sandia for the purposes of learning the Kokkos programming model and so is available in only a single implementation. For this report we studied its performance and scaling on a number of machines with the intent of providing insight into potential performance issues that may be experienced when similar algorithms are deployed on the forthcoming Trinity ASC ATS platform.

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TYPE SAND Report YEAR 2015
DOIOSTI
23 Results
23 Results