'1d fft' presentation slideshows

Parallel Spectral Methods: Solving Elliptic Problems with FFTs

670 views • 53 slides

Parallel Spectral Methods: Solving Elliptic Problems with FFTs

538 views • 53 slides

Scaling Three-dimensional Fourier Transforms

Scaling Three-dimensional Fourier Transforms. Dmitry Pekurovsky dmitry@sdsc.edu San Diego Supercomputer Center. Fast Fourier Transform (FFT). F(k) = S x f(x) exp(-i2 p kx/N) A well-known, efficient, commonly used algorithm 1D FFT used in MANY science fields

543 views • 29 slides

Optimizing the Fast Fourier Transform on a Multi-core Architecture

Optimizing the Fast Fourier Transform on a Multi-core Architecture. Presentation by Tao Liu. Long Chen; Ziang Hu; Junmin Lin; Gao, G.R.; IEEE International Parallel and Distributed Processing Symposium, 2007. Outline. FFT Introduction FFT Implementation-State of Art Introduce this paper

401 views • 28 slides

Scaling of a Pseudospectral DNS Turbulence Code and a Parallel 3D FFT Library

Scaling of a Pseudospectral DNS Turbulence Code and a Parallel 3D FFT Library. Dmitry Pekurovsky dmitry@sdsc.edu San Diego Supercomputer Center. Examples of turbulence are common. Disorderly, nonlinear fluctuations in 3D space and time that span a wide range of interacting scales.

500 views • 25 slides

Three-dimensional Fast Fourier Transform (3D FFT): the algorithm

Three-dimensional Fast Fourier Transform (3D FFT): the algorithm. 1D FFT is applied three times (for X,Y and Z) Easily parallelized, load balanced Use transpose approach: call FFT on local data only

699 views • 22 slides

UPC Benchmarks Kathy Yelick LBNL and UC Berkeley

UPC Benchmarks Kathy Yelick LBNL and UC Berkeley. Joint work with The Berkeley UPC Group: Christian Bell, Dan Bonachea, Wei Chen, Jason Duell, Paul Hargrove, Parry Husbands, Costin Iancu, Rajesh Nishtala, Michael Welcome. UPC for the High End. One way to gain acceptance of a new language

332 views • 18 slides

UPC Benchmarks Kathy Yelick LBNL and UC Berkeley

UPC Benchmarks Kathy Yelick LBNL and UC Berkeley. Joint work with The Berkeley UPC Group: Christian Bell, Dan Bonachea, Wei Chen, Jason Duell, Paul Hargrove, Parry Husbands, Costin Iancu, Rajesh Nishtala, Michael Welcome. UPC for the High End. One way to gain acceptance of a new language

189 views • 18 slides