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Performance Analysis and Optimization of Nonhydrostatic ICosahedral Atmospheric Model (NICAM) on the K Computer and TSUBAME2.5

Authors:

Hisashi Yashiro,

Hirofumi TomitaAuthors Info & Claims

PASC '16: Proceedings of the Platform for Advanced Scientific Computing Conference

Article No.: 3, Pages 1 - 8

https://doi.org/10.1145/2929908.2929911

Published: 08 June 2016 Publication History

Abstract

We summarize the optimization and performance evaluation of the Nonhydrostatic ICosahedral Atmospheric Model (NICAM) on two different types of supercomputers: the K computer and TSUBAME2.5. First, we evaluated and improved several kernels extracted from the model code on the K computer. We did not significantly change the loop and data ordering for sufficient usage of the features of the K computer, such as the hardware-aided thread barrier mechanism and the relatively high bandwidth of the memory, i.e., a 0.5 Byte/FLOP ratio. Loop optimizations and code cleaning for a reduction in memory transfer contributed to a speed-up of the model execution time. The sustained performance ratio of the main loop of the NICAM reached 0.87 PFLOPS with 81,920 nodes on the K computer. For GPU-based calculations, we applied OpenACC to the dynamical core of NICAM. The performance and scalability were evaluated using the TSUBAME2.5 supercomputer. We achieved good performance results, which showed efficient use of the memory throughput performance of the GPU as well as good weak scalability. A dry dynamical core experiment was carried out using 2560 GPUs, which achieved 60 TFLOPS of sustained performance.

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Cited By

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https://doi.org/10.1109/ECNCT63103.2024.10704385
Noda AOhno TKodama CChen YKuba NSeiki TYamada YSatoh M(2023)Recent global nonhydrostatic modeling approach without using a cumulus parameterization to understand the mechanisms underlying cloud changes due to global warmingProgress in Earth and Planetary Science10.1186/s40645-023-00583-x10:1Online publication date: 18-Aug-2023
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Jin YWang HZhong RZhang CZhai JLee JAgrawal KSpear M(2022)PerFlowProceedings of the 27th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming10.1145/3503221.3508405(177-191)Online publication date: 2-Apr-2022
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Performance Analysis and Optimization of Nonhydrostatic ICosahedral Atmospheric Model (NICAM) on the K Computer and TSUBAME2.5
1. Applied computing
  1. Physical sciences and engineering
2. General and reference
  1. Cross-computing tools and techniques

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PASC '16: Proceedings of the Platform for Advanced Scientific Computing Conference

June 2016

141 pages

ISBN:9781450341264

DOI:10.1145/2929908

Copyright © 2016 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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SIGHPC: ACM Special Interest Group on High Performance Computing, Special Interest Group on High Performance Computing
ETH Zurich
CSCS: Swiss National Supercomputing Centre

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New York, NY, United States

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Published: 08 June 2016

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PASC '16

PASC '16: Platform for Advanced Scientific Computing Conference

June 8 - 10, 2016

Lausanne, Switzerland

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PASC '16 Paper Acceptance Rate 12 of 44 submissions, 27%;

Overall Acceptance Rate 109 of 221 submissions, 49%

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Ning ZHuang JBian HTan Z(2024)Research on GRAPES Semi-Implicit Semi-Lagrangian Computation Optimization Based on CPU+GPU Heterogeneity2024 6th International Conference on Electronics and Communication, Network and Computer Technology (ECNCT)10.1109/ECNCT63103.2024.10704385(411-417)Online publication date: 19-Jul-2024
https://doi.org/10.1109/ECNCT63103.2024.10704385
Noda AOhno TKodama CChen YKuba NSeiki TYamada YSatoh M(2023)Recent global nonhydrostatic modeling approach without using a cumulus parameterization to understand the mechanisms underlying cloud changes due to global warmingProgress in Earth and Planetary Science10.1186/s40645-023-00583-x10:1Online publication date: 18-Aug-2023
https://doi.org/10.1186/s40645-023-00583-x
Jin YWang HZhong RZhang CZhai JLee JAgrawal KSpear M(2022)PerFlowProceedings of the 27th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming10.1145/3503221.3508405(177-191)Online publication date: 2-Apr-2022
https://dl.acm.org/doi/10.1145/3503221.3508405
Kodama COhno TSeiki TYashiro HNoda ANakano MYamada YRoh WSatoh MNitta TGoto DMiura HNasuno TMiyakawa TChen YSugi M(2021)The Nonhydrostatic ICosahedral Atmospheric Model for CMIP6 HighResMIP simulations (NICAM16-S): experimental design, model description, and impacts of model updatesGeoscientific Model Development10.5194/gmd-14-795-202114:2(795-820)Online publication date: 4-Feb-2021
https://doi.org/10.5194/gmd-14-795-2021
Klingmüller KLelieveld J(2021)Climate-model-informed deep learning of global soil moisture distributionGeoscientific Model Development10.5194/gmd-14-4429-202114:7(4429-4441)Online publication date: 19-Jul-2021
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Wang PJiang JLin PDing MWei JZhang FZhao LLi YYu ZZheng WYu YChi XLiu H(2021)The GPU version of LASG/IAP Climate System Ocean Model version 3 (LICOM3) under the heterogeneous-compute interface for portability (HIP) framework and its large-scale applicationGeoscientific Model Development10.5194/gmd-14-2781-202114:5(2781-2799)Online publication date: 18-May-2021
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Bertagna LGuba OTaylor MFoucar JLarkin JBradley ARajamanickam SSalinger ACuicchi CQualters IKramer W(2020)A performance-portable nonhydrostatic atmospheric dycore for the energy exascale earth system model running at cloud-resolving resolutionsProceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis10.5555/3433701.3433823(1-14)Online publication date: 9-Nov-2020
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Yashiro HTerasaki KKawai YKudo SMiyoshi TImamura TMinami KInoue HNishiki TSaji TSatoh MTomita HCuicchi CQualters IKramer W(2020)A 1024-member ensemble data assimilation with 3.5-km mesh global weather simulationsProceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis10.5555/3433701.3433703(1-10)Online publication date: 9-Nov-2020
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Bertagna LGuba OTaylor MFoucar JLarkin JBradley ARajamanickam SSalinger A(2020)A Performance-Portable Nonhydrostatic Atmospheric Dycore for the Energy Exascale Earth System Model Running at Cloud-Resolving Resolutions.SC20: International Conference for High Performance Computing, Networking, Storage and Analysis10.1109/SC41405.2020.00096(1-14)Online publication date: Nov-2020
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Yashiro HTerasaki KKawai YKudo SMiyoshi TImamura TMinami KInoue HNishiki TSaji TSatoh MTomita H(2020)A 1024-Member Ensemble Data Assimilation with 3.5-Km Mesh Global Weather SimulationsSC20: International Conference for High Performance Computing, Networking, Storage and Analysis10.1109/SC41405.2020.00005(1-10)Online publication date: Nov-2020
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