ISC'14

June 22–26, 2014
Leipzig, Germany

Presentation Details

 
Name: A Proposal for a New Top500 Metric
 
Time: Thursday, June 26, 2014
10:00 am - 10:30 am
 
Room:   Hall 2
CCL - Congress Center Leipzig
 
Breaks:10:30 am - 11:00 am Coffee Break
07:30 am - 10:30 am Welcome Coffee
 
Speaker:   Mark Adams, LBNL
 
Abstract:   The High Performance Linpack (HPL) benchmark and associated Top-500 List has been a successful metric for ranking high performance computing systems. HPL became a broadly accepted representative for application performance when it came to prominence in the 1990s, but over time has become less reflective of the system performance metrics that matter to contemporary science and engineering applications as lower complexity algorithms have been developed as required for extreme scale computing. We propose a replacement for HPL that maintains many of its desirable qualities: a direct, non-iterative, solver for systems of linear algebraic equations. We define a high performance geometric multigrid (HPGMG) benchmark that provides a more balanced exercise of machine capabilities and a more accurate proxy to modern application requirements. Using HPGMG, we strive to create a benchmark for ranking systems that will promote system design improvements that are better aligned to real scientific application performance.