About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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Algorithm Development in Materials Science and Engineering
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Presentation Title |
Preparing for Exascale Phase-field Simulations: Scalable, Performance-portable Precipitation Simulations |
Author(s) |
Stephen J. DeWitt, Philip Fackler, Younggil Song, Bala Radhakrishnan, John Turner |
On-Site Speaker (Planned) |
Stephen J. DeWitt |
Abstract Scope |
Exascale computing can enable 3D, full-physics simulations of phenomena at larger ranges of length and time scales than is currently possible. However, developing performant codes for leadership machines with a variety of heterogeneous-node architectures poses a significant challenge. We discuss an approach taken to tackle this challenge in MEUMAPPS, an FFT-based phase-field code. Since the best performing FFT library might differ across machines, the code is designed for easy integration with different scalable FFT libraries. The code leverages Kokkos for portability across node-level parallelization methods (e.g. CUDA, HIP, OpenMP). The results of GPU-speedup, scaling, and profiling studies for simulated precipitation in Ni-base superalloys are reported. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. Research supported by the Exascale Computing Project (17-SC-20-SC), a joint project of the U.S. Department of Energy’s Office of Science and National Nuclear Security Administration. |
Proceedings Inclusion? |
Planned: |