Performance Portability of HPC Discovery Science Software: Fusion Energy Turbulence Simulations at Extreme Scale
- Princeton Univ., NJ (United States). Princeton Inst. for Computational Science and Engineering
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Univ. of California, Irvine, CA (United States)
As HPC R&D moves forward on a variety of “path to exascale” architectures today, an associated objective is to demonstrate performance portability of discovery-science-capable software. Important application domains, such as Magnetic Fusion Energy (MFE), have improved modelling of increasingly complex physical systems -- especially with respect to reducing “time-to-solution” as well as “energy to solution.” The emergence of new insights on confinement scaling in MFE systems has been aided significantly by efficient software capable of harnessing powerful supercomputers to carry out simulations with unprecedented resolution and temporal duration to address increasing problem sizes. Specifically, highly scalable particle-in-cell (PIC) programing methodology is used in this paper to demonstrate how modern scientific applications can achieve efficient architecture-dependent optimizations of performance scaling and code portability for path-to-exascale platforms.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- OSTI ID:
- 1567662
- Journal Information:
- Supercomputing frontiers and innovations, Vol. 4, Issue 1; ISSN 2313-8734
- Publisher:
- South Ural State UniversityCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
PLEXUS: A Pattern-Oriented Runtime System Architecture for Resilient Extreme-Scale High-Performance Computing Systems
Modern gyrokinetic particle-in-cell simulation of fusion plasmas on top supercomputers