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DTSTART;TZID=Europe/Paris:20260303T182500
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UID:1983-1772562300-1772563800@ceec-coe.eu
SUMMARY:GALAEXI: An Architecture-Agnostic GPU-Acceleration Approach for Legacy Fortran Software
DESCRIPTION:Join Spencer Starr at the Society for Industrial and Applied Mathematics (SIAM)Processing for Scientific Computing (PP26)confrence in Berlin for his talk on “GALAEXI: An Architecture-Agnostic GPU-Acceleration Approach for Legacy Fortran Software” \n GALAEXI is a high-order discontinuous Galerkin spectral element method (DGSEM) computational fluid dynamics (CFD) code used for the study of compressible\, turbulent flows. It is the device-accelerated version of an existing Fortran-based\, CPU-only CFD framework. In this talk\, the chosen strategy for porting the Fortran-based compute kernels in GALAEXI to CUDA/HIP C++ is covered. Included are discussions on managing device memory\, retaining support for CPU computations\, strategies for writing and testing kernels and how to handle GPU-to-GPU MPI communication. Specific emphasis is placed on how the strategies covered can be abstracted in an architecture-agnostic way to allow the greatest degree of portability. The information presented will then be distilled into advice for those seeking to perform a similar porting effort.
URL:https://ceec-coe.eu/event/galaexi-an-architecture-agnostic-gpu-acceleration-approach-for-legacy-fortran-software/
CATEGORIES:Conference,mini-symposium
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