Discussion Overview
The discussion centers around finding efficient C code for performing a 2D Fast Fourier Transform (FFT) on large arrays, specifically targeting dimensions such as 8192 x 8192. Participants share resources and libraries that may fulfill this requirement.
Discussion Character
- Technical explanation
- Debate/contested
Main Points Raised
- One participant expresses a need for a 2D FFT implementation in C that can handle large arrays and mentions unsuccessful attempts with specific websites.
- Another participant suggests using the FFTW library, providing a link to its website as a potential solution.
- A third participant mentions the existence of libfft on Linux, although they have not used it personally.
- A later reply reinforces the recommendation of FFTW, noting its status as a standard library and mentioning the availability of GPU implementations for enhanced performance.
Areas of Agreement / Disagreement
Participants generally agree on the recommendation of FFTW as a suitable library for 2D FFTs, but there is no consensus on the effectiveness of other mentioned resources or libraries.
Contextual Notes
Some participants have not tested the suggested libraries, and there may be varying experiences with performance and output accuracy among different implementations.