Implementation of Parallel 3-D Real FFT with 2-D Decomposition on Intel Xeon Phi Clusters
Implementation of Parallel 3-D Real FFT with 2-D Decomposition on Intel Xeon Phi Clusters
复制标题
在英特尔至强融核集群上实现并行 3-D Real FFT 和 2-D 分解
DOI:
10.1007/978-3-030-43229-4_14
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
Daisuke Takahashi
中科院分区:
文献类型:
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作者:
齋藤光貴;渡辺知恵美;Daisuke Takahashi
In this paper, we propose an implementation of a parallel 3-D real fast Fourier transform (FFT) with 2-D decomposition on Intel Xeon Phi clusters. The proposed implementation of the parallel 3-D real FFT is based on the conjugate symmetry property of the discrete Fourier transform (DFT) and the row-column FFT algorithm. We vectorized FFT kernels using the Intel Advanced Vector Extensions 512 (Intel AVX-512) instructions. Performance results of parallel 3-D real FFTs on Intel Xeon Phi clusters are reported. We successfully achieved a level of performance over 10 TFlops on 2048 nodes of Fujitsu PRIMERGY CX1640 M1 cluster for an-point FFT.