tg at gmplib.org
Thu Feb 16 07:54:02 CET 2012
nisse at lysator.liu.se (Niels Möller) writes:
> But first MUL_TOOM43_TO_TOOM54_THRESHOLD needs to be measured and set to
> some default.
I have pushed in an attempt at tuning code. Please have a look to see if
makes sense. I measure a line with an operand size ratio 5/6. On this
core2 machine I get
#define MUL_TOOM43_TO_TOOM54_THRESHOLD 100
I set the default to 150, since other tuned thresholds seem to be a bit
smaller than the defaults.
I haven't yet admired the code, but magically it is now tabled with the
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