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Performance Portability with alpaka

Stephan, J.; Bastrakov, S.; Di Pilato, A.; Ehrig, S.; Gruber, B. M.; Vyskocil, J.; Widera, R.; Bussmann, M.

Abstract

The alpaka library is a header-only C++17 abstraction library for development across hardware accelerators (CPUs, GPUs, FPGAs). Its aim is to provide performance portability across accelerators through the abstraction (not hiding!) of the underlying levels of parallelism. In this talk we will show the concepts behind alpaka, how it is mapped to the various underlying hardware models, and show the features introduced over the last year. In addition, we will also (shortly) present the software ecosystem surrounding alpaka.

Keywords: alpaka; performance portability; GPGPU; C++; heterogeneous programming; software portability; parallel programming; CUDA; OpenMP; SYCL

  • Open Access Logo Poster
    21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT 2022), 23.-28.10.2022, Bari, Italia

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Permalink: https://www.hzdr.de/publications/Publ-36071