Overlapping of Communication and Computation in nb3dfft for 3D Fast Fourier Transformations
| Autor: | Jens Henrik Göbbert, Cedrick Ansorge, Heinz Pitsch, Hristo Iliev |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Computer simulation
Turbulence Computer science Computation Fast Fourier transform 010103 numerical & computational mathematics Combustion 01 natural sciences 010305 fluids & plasmas Computational science Physics::Fluid Dynamics Frequency domain 0103 physical sciences Code (cryptography) 0101 mathematics |
| Zdroj: | Lecture Notes in Computer Science ISBN: 9783319538617 JHPCS |
| DOI: | 10.1007/978-3-319-53862-4_13 |
| Popis: | For efficiency and accuracy of Direct Numerical Simulations (DNS) of turbulent flows pseudo-spectral methods can be employed, where the governing equations are solved partly in Fourier space. The inhouse-developed 3d-FFT library nb3dfft is optimized to the special needs of pseudo-spectral DNS, particularly for the scientific code psOpen, used by the Institute for Combustion Technology at RWTH Aachen University. In this paper we discuss the method of overlapping communication and computation of multiple FFTs at the same time. |
| Databáze: | OpenAIRE |
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