libtommath/tommath_cutoffs.h

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/* LibTomMath, multiple-precision integer library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/*
Current values evaluated on an AMD A8-6600K (64-bit).
Type "make tune" to optimize them for your machine but
be aware that it may take a long time. It took 2:30 minutes
on the aforementioned machine for example.
*/
#define MP_DEFAULT_MUL_KARATSUBA_CUTOFF 80
#define MP_DEFAULT_SQR_KARATSUBA_CUTOFF 120
#define MP_DEFAULT_MUL_TOOM_CUTOFF 350
#define MP_DEFAULT_SQR_TOOM_CUTOFF 400