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UID:submissions.supercomputing.org_SC23_sess160_pap308@linklings.com
SUMMARY:Experiences Readying Applications for Exascale
DESCRIPTION:Nicholas Malaya (Advanced Micro Devices (AMD) Inc); Bronson Me
 sser (Oak Ridge National Laboratory (ORNL)); Joseph Glenski (Hewlett Packa
 rd Enterprise (HPE)); Antigoni Georgiadou, Justin Lietz, and Kalyana Gotti
 parthi (Oak Ridge National Laboratory (ORNL)); Marc Day (National Renewabl
 e Energy Laboratory (NREL)); Jackie Chen (Sandia National Laboratories); J
 on Rood and Lucas Esclapez (National Renewable Energy Laboratory (NREL)); 
 James White III (Hewlett Packard Enterprise (HPE)); Gustav R. Jansen (Oak 
 Ridge National Laboratory (ORNL)); Nicholas Curtis (AMD Research); Stephen
  Nichols (Oak Ridge National Laboratory (ORNL)); Jakub Kurzak, Noel Chalme
 rs, Chip Freitag, Paul Bauman, and Alessandro Fanfarillo (AMD Research); R
 euben D. Budiardja and Thomas Papatheodore (Oak Ridge National Laboratory 
 (ORNL)); Nicholas Frontiere (Argonne National Laboratory (ANL)); Damon McD
 ougall (AMD Research); Matthew Norman, Sarat Sreepathi, Philip Roth, and D
 mytro Bykov (Oak Ridge National Laboratory (ORNL)); Noah Wolfe and Paul Mu
 llowney (AMD Research); Markus Eisenbach (Oak Ridge National Laboratory (O
 RNL)); Marc T. Henry de Frahan (National Renewable Energy Laboratory (NREL
 )); and Wayne Joubert (Oak Ridge National Laboratory (ORNL))\n\nThe advent
  of exascale computing invites an assessment of existing best practices fo
 r developing application readiness on the world’s largest supercomputers. 
 This work details observations from the last four years in preparing scien
 tific applications to run on the Oak Ridge Leadership Computing Facility's
  (OLCF) Frontier system. This paper addresses a range of topics in softwar
 e including programmability, tuning, and portability considerations that a
 re key to moving applications from existing systems to future installation
 s. A set of representative workloads provides case studies for general sys
 tem and software testing. We evaluate the use of early access systems for 
 development across several generations of hardware. Finally, we discuss ho
 w best practices were identified and disseminated to the community through
  a wide range of activities including user-guides and trainings. We conclu
 de with recommendations for ensuring application readiness on future leade
 rship computing systems.\n\nTag: Exascale, Large Scale Systems, State of t
 he Practice\n\nRegistration Category: Tech Program Reg Pass\n\nAward Final
 ist: Best Paper Finalist\n\nSession Chair: Taisuke Boku (University of Tsu
 kuba, Advanced HPC‑AI Research and Development Support Center (HAIRDESC))\
 n\n
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