Productivity from day one on supercomputers that leverage new technologies requires significant preparation. An institution that procures a novel system architecture often lacks sufficient institutional knowledge and skills to prepare for it. Thus, the "Center of Excellence" (CoE) concept has emerged to prepare for systems such as Summit and Sierra, currently the top two systems in the Top 500. This paper documents CoE experiences that prepared a workload of diverse applications and math libraries for a heterogeneous system. We describe our approach to this preparation, including our management and execution strategies, and detail our experiences with and reasons for using different programming approaches. Our early science and performance results show that the project enabled significant early seismic science with up to a l4X throughput increase over Cori. In addition to our successes, we discuss our challenges and failures so others may benefit from our experience.

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Gardner DReynolds DWoodward CBalos C(2022)Enabling New Flexibility in the SUNDIALS Suite of Nonlinear and Differential/Algebraic Equation SolversACM Transactions on Mathematical Software10.1145/353980148:3(1-24)Online publication date: 10-Sep-2022
https://dl.acm.org/doi/10.1145/3539801
Balos CGardner DWoodward CReynolds D(2021)Enabling GPU accelerated computing in the SUNDIALS time integration libraryParallel Computing10.1016/j.parco.2021.102836108:COnline publication date: 1-Dec-2021
https://dl.acm.org/doi/10.1016/j.parco.2021.102836
Pankajakshan RLin PSjogreen B(2020)Porting a 3D seismic modeling code (SW4) to CORAL machinesIBM Journal of Research and Development10.1147/JRD.2019.296021864:3/4(17:1-17:11)Online publication date: 1-May-2020
https://doi.org/10.1147/JRD.2019.2960218

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Preparation and optimization of a diverse workload for a large-scale heterogeneous system

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SC '19: Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis

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ISBN:9781450362290

DOI:10.1145/3295500

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Gardner DReynolds DWoodward CBalos C(2022)Enabling New Flexibility in the SUNDIALS Suite of Nonlinear and Differential/Algebraic Equation SolversACM Transactions on Mathematical Software10.1145/353980148:3(1-24)Online publication date: 10-Sep-2022
https://dl.acm.org/doi/10.1145/3539801
Balos CGardner DWoodward CReynolds D(2021)Enabling GPU accelerated computing in the SUNDIALS time integration libraryParallel Computing10.1016/j.parco.2021.102836108:COnline publication date: 1-Dec-2021
https://dl.acm.org/doi/10.1016/j.parco.2021.102836
Pankajakshan RLin PSjogreen B(2020)Porting a 3D seismic modeling code (SW4) to CORAL machinesIBM Journal of Research and Development10.1147/JRD.2019.296021864:3/4(17:1-17:11)Online publication date: 1-May-2020
https://doi.org/10.1147/JRD.2019.2960218

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