[ Resend, due to mailinglist error ]
marco.bodr...@tutanota.com writes:
> I did try it, and the results are comparable with the results obtained
> with the current code.
Thanks for testing!
>> One thing that looks odd is
>> /* Use ratio 5/6 when measuring, the middle of the range 2/3 to 1. */
>>
>> for the tuning of MUL_TOOM43_TO_TOOM54_THRESHOLD.
[...]
> Toom54 is not used. And toom43 is used in the range 2/3 .. 6/7.
>
> But if I measure the speed with the ratio 0.7 or 0.8 I get quite
> different thresholds, which one should we use?
Maybe crossover is rather flat, i.e., a wide range with very small
difference in performance? I hope these changes should make it easier to
investigate such things.
> By the way, one should add also the following lines:
> { "mpn_toom53_mul", speed_mpn_toom53_mul, FLAG_SR_OPTIONAL },
> { "mpn_toom54_mul", speed_mpn_toom54_mul, FLAG_SR_OPTIONAL },
Good catch, adding those.
I intend to push this change in a few days. Have a nice Christmas!
Regards,
/Niels
--
Niels Möller. PGP key CB4962D070D77D7FCB8BA36271D8F1FF368C6677.
Internet email is subject to wholesale government surveillance.
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