Quote:
Originally Posted by mdettweiler
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.