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| Paper: |
Spherical Harmonic Transforms with S2HAT (Scalable Spherical Harmonic Transform) Library |
| Volume: |
461, Astronomical Data Analysis Software and Systems XXI |
| Page: |
61 |
| Authors: |
Fabbian, G.; Szydlarski, M.; Stompor, R.; Grigori, L.; Falcou, J. |
| Abstract: |
We present the Scalable Spherical Harmonic Transform library (S2HAT) – a portable, massively parallel, scalable library for calculating scalar and spin-weighted spherical harmonic transforms on different computer architectures, including distributed-memory,
hybrid multi-/many- core platforms, as well as clusters of many GPUs and CPUs. Here we comment on the two latter cases. The numerical complexity of the library
transforms is O(npix1/2ℓmax2). The S2HAT library is publicly available. |
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