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DTSTART:19700308T020000
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DTSTAMP:20260202T201258Z
LOCATION:Second Floor Atrium
DTSTART;TZID=America/Chicago:20251121T080000
DTEND;TZID=America/Chicago:20251121T120000
UID:submissions.supercomputing.org_SC25_sess620_post294@linklings.com
SUMMARY:Characterizing Performance and Energy Trade-Offs on the Aurora Sup
 ercomputer
DESCRIPTION:Solomon Bekele, Swann Perarnau, and Brice Videau (Argonne Nati
 onal Laboratory (ANL))\n\nIn this work, we evaluate the range of performan
 ce-energy tradeoffs achievable by the independent application of node-leve
 l power capping and DVFS controls on the Aurora supercomputer. We then ana
 lyze the default uncore frequency behavior under constrained node power, r
 evealing inefficiencies—particularly in memory-bound workloads—where the u
 ncore is under-provisioned despite high demand. To address this, we propos
 e U-PullUp, a lightweight uncore DVFS control strategy designed to operate
  alongside a node-level power cap. U-PullUp complements the default policy
  by increasing the frequency of the uncore when its utilization is high. O
 ur approach yields up to 34.2% energy savings under a power limit.\n\nTag:
  Research & ACM SRC Posters\n\nRegistration Category: Technical Program Re
 g Pass\n\nSession Chairs: Kento Sato (RIKEN Center for Computational Scien
 ce (R-CCS)); Anja Gerbes (Georg-August-Universität Göttingen); and Chris S
 chlipalius (Pawsey Supercomputing Research Centre; Commonwealth Scientific
  and Industrial Research Organisation (CSIRO), Australia)\n\n
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