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DTSTAMP:20230124T171527Z
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DTSTART;TZID=America/Chicago:20221113T143000
DTEND;TZID=America/Chicago:20221113T150000
UID:submissions.supercomputing.org_SC22_sess433_ws_prot103@linklings.com
SUMMARY:Conquering Noise with Hardware Counters on HPC Systems
DESCRIPTION:Workshop\n\nConquering Noise with Hardware Counters on HPC Sys
 tems\n\nRitter, Tarraf, Geiß, Daoud, Mohr...\n\nWith increasing system per
 formance and complexity, it is becoming increasingly crucial to examine th
 e scaling behavior of an application and thus determine performance bottle
 necks at early stages.  Unfortunately, modeling this trend is a challengin
 g task in the presence of noise, as the measurements can become irreproduc
 ible and misleading thus resulting in strong deviations from the real beha
 vior.  While noise impacts the application runtime, it has little to no ef
 fect on some hardware counters like floating-point operations.  However, se
 lecting the appropriate counters for performance modeling demands some inv
 estigation.  We perform a noise analysis on various hardware counters. Usi
 ng our noise generator, we add on top of the system noise additional noise
  to inspect the counters' variability. We perform the analysis on five sys
 tems with three applications in the presence of various noise patterns and
  categorize the counters across the systems according to their noise resil
 ience.\n\nSession Format: Recorded\n\nRegistration Category: Workshop Reg 
 Pass
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