Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scalable Multi-node Fast Fourier Transform on GPUs   In this paper, we present the details of our multi-node GPU-FFT library, as
well its scaling on Selene HPC system. Our library employs slab decomposition
for data division and MPI for communication among GPUs. We performed GPU-FFT on
$1024^3$, $2048^3$, and $4096^3$ grids using a maximum of 512 A100 GPUs. We
observed good scaling for $4096^3$ grid with 64 to 512 GPUs. We report that the
timings of multicore FFT of $1536^3$ grid with 196608 cores of Cray XC40 is
comparable to that of GPU-FFT of $2048^3$ grid with 128 GPUs. The efficiency of
GPU-FFT is due to the fast computation capabilities of A100 card and efficient
communication via NVlink.

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The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: math
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
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The categories of this paper are: hep-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: astro-ph