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Old 2014-07-28, 03:49   #2
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Aug 2002
Yeehaw, FL

748510 Posts

Originally Posted by mdettweiler View Post
For the CRUS base 6 project, an FFT size of 448K is selected by LLR. The NPLB base 2 work uses an FFT size of 96K. Both of these are sufficiently small to fit within L2/L3 cache, respectively; the base 6 work just barely fits within the AMD's L2.
A 448K FFT uses 448K * 8 bytes plus sin/cos and weighting data -- around 4MB.
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