Hi all, Does anyone know why the param.function of FFT parameter in 'tuneup.c' is set to be 'speed_mpn_mul_fft' while 'mpn_mul_n' seems actually call 'mpn_mul_fft_full'? It seems that 'mpn_mul_fft' is a subroutine of 'mpn_mul_fft_full'. Thank you. Bruce