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DTSTAMP:20230831T095746Z
LOCATION:Wisshorn
DTSTART;TZID=Europe/Stockholm:20230627T120000
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UID:submissions.pasc-conference.org_PASC23_sess149_msa171@linklings.com
SUMMARY:How a Performance Analysis Methodology Can Guide the Optimization 
 of EUROfusion HPC Scientific Codes
DESCRIPTION:Minisymposium\n\nMarta Garcia-Gasulla and Joan Vinyals (Barcel
 ona Supercomputing Center)\n\nApplication developers from all fields relyi
 ng on HPC deal with two challenges. On the one hand, they push their codes
  to solve more relevant use cases or more detailed simulations to advance 
 in their field of study. On the other hand, they try to efficiently use th
 e computational resources while scaling up to more cores and nodes and por
 ting and adapting their codes to the new HPC architectures. In this talk, 
 we will show how starting with detailed performance analysis and working t
 ogether with application developers and users to understand the specific n
 eeds of the particular science; we succeed in identifying the main bottlen
 ecks of fusion research codes. To this effect, we will explain some practi
 cal examples of how using several performance tools on the EUROfusion code
 s helped developers understand their behavior and find ways to improve the
 ir performance to run on HPC systems.\n\nDomain: Physics\n\nSession Chair:
  Gilles Fourestey (EPFL)
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