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added kiss_fft_cleanup

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updated Makefiles for long and simd targets
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Mark Borgerding
2005-07-09 03:42:07 +00:00
parent 553bd4f13a
commit 3b5dfee961
6 changed files with 38 additions and 7 deletions
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@ -10,6 +10,10 @@ Speed:
* If the input data has no imaginary component, use the kiss_fftr code under tools/.
Real ffts are roughly twice as fast as complex.
* If you can rearrange your code to do 4 FFTs in parallel and you are on a recent Intel or AMD machine,
then you might want to experiment with the USE_SIMD code.
Reducing code size:
* remove some of the butterflies. There are currently butterflies optimized for radices
2,3,4,5. It is worth mentioning that you can still use FFT sizes that contain