湍流模拟中的无传输快速傅里叶变换
Transpose-free Fast Fourier Transform for Turbulence Simulation
摘要:
拟谱方法是模拟湍流流动的最精确的方法之一。快速傅里叶变换(FFT)是该方法的组成部分。在本文中,我们提出了一个新的程序来计算FFT,我们节省了操作过程中的进程间通信,避免转置的数组。因此,我们的无转置FFT比FFTW快15%到20%。
英文摘要:
Pseudo-spectral method is one of the most accurate techniques for simulating turbulent flows. Fast Fourier transform (FFT) is an integral part of this method. In this paper, we present a new procedure to compute FFT in which we save operations during interprocess communications by avoiding transpose of the array. As a result, our transpose-free FFT is 15\% to 20\% faster than FFTW.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。