Junlin Wei

ORCID: 0000-0003-3824-656X
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About
Contact & Profiles
Research Areas
  • Oceanographic and Atmospheric Processes
  • Climate variability and models
  • Marine and coastal ecosystems
  • Meteorological Phenomena and Simulations
  • Geological formations and processes
  • Scientific Computing and Data Management

Computer Network Information Center
2020-2024

Chinese Academy of Sciences
2020-2024

University of Chinese Academy of Sciences
2024

Peng Cheng Laboratory
2024

Abstract. A high-resolution (1/20∘) global ocean general circulation model with graphics processing unit (GPU) code implementations is developed based on the LASG/IAP Climate System Ocean Model version 3 (LICOM3) under a heterogeneous-compute interface for portability (HIP) framework. The dynamic core and physics package of LICOM3 are both ported to GPU, three-dimensional parallelization (also partitioned in vertical direction) applied. HIP (LICOM3-HIP) 42 times faster than same number CPU...

10.5194/gmd-14-2781-2021 article EN cc-by Geoscientific model development 2021-05-18

ABSTRACT Polynomial preconditioning accelerates iterative methods for large‐scale sparse linear systems by optimizing the spectral distribution and decreasing reduction communication overhead. The Neumann polynomial is notable its simple construction stable performance, making it easy to combine with other preconditioners widely used in high‐performance computing. choice of scaling parameter within series critical acceleration, requiring an accurate estimate eigenvalue bounds preconditioned...

10.1002/cpe.70098 article EN Concurrency and Computation Practice and Experience 2025-04-22

Abstract. A high-resolution (1/20°) global ocean general circulation model with Graphics processing units (GPUs) code implementations is developed based on the LASG/IAP Climate system Ocean Model version 3 (LICOM3) under Heterogeneous-compute Interface for Portability (HIP) framework. The dynamic core and physics package of LICOM3 are both ported to GPU, 3-dimensional parallelization applied. HIP (LICOM3-HIP) 42 times faster than what same number CPU cores dose, when 384 AMD GPUs used....

10.5194/gmd-2020-323 article EN cc-by 2020-12-10

Abstract. We describe an idealized Southern Ocean model (ISOM 1.0) that contains simplified iconic topographic features in the and conduct a fully mesoscale-resolving simulation with horizontal resolution of 2 km, based on Massachusetts Institute Technology general circulation model. The obtains developed vigorous mesoscale eddying field k−3 eddy kinetic energy spectrum captures effect stratification large-scale flow. To make natural introduction large (LES) methods to ocean...

10.5194/gmd-17-8469-2024 article EN cc-by Geoscientific model development 2024-11-28
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