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Automatic Generation of Cross-Platform Vectorization Kernels for Cloud Microphysics Parameterization
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DOI：10.1016/j.jpdc.2026.105273.png)
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Abstract
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• An auto-generation framework (Auto-CLOUDSC) is proposed for optimizing the vectorization of the CLOUDSC cloud microphysics scheme. • The method introduces a physics-combine (loop fusion) algorithm to improve temporal data locality and reduce computational redundancy. • A cache-aware tiling algorithm is designed to enhance spatial locality and cache utilization for column-major data structures. • The framework improves performance, achieving 1.3-2.1 × speedup on ARM and 1.9-3.4 × on Intel CPUs. • Auto-CLOUDSC automates Fortran-to-vector code transformation, supporting modern architectures.
Keywords:
Auto-CLOUDSC
vectorization
cloud microphysics
loop fusion
cache-aware tiling
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