mpz_prevprime

[Marco Bodrato]

Ciao,

Il 2020-02-05 00:59 Seth Troisi ha scritto:
> I got VERY VERY VERY lucky and found a prime gap > 2^15 with the 4th
> highest merit of ANY KNOW PRIME GAP.

Great!

> Given Marco's timing of 25 seconds (and a goal of say 3 seconds on
> that machine) the start prime would need to be ~~200 digits.

>>> tg at gmplib.org (Torbjörn Granlund) writes:
>>>> We have tried to stick to a limit of 1 s on a reasonable current
>>>> computer. Most tests should use much less, if possible.

I underline one word TG used: reasonable. Mine was not :-)

I was only measuring how much the patch increases the time used by the 
test.

But I'm personally still not really understanding which feature is 
tested by the patched code and not tested by the current code.

Ĝis,
mCiao,

Il 2020-02-05 00:59 Seth Troisi ha scritto:
> I got VERY VERY VERY lucky and found a prime gap > 2^15 with the 4th
> highest merit of ANY KNOW PRIME GAP.

Great!

> Given Marco's timing of 25 seconds (and a goal of say 3 seconds on
> that machine) the start prime would need to be ~~200 digits.

>>> tg at gmplib.org (Torbjörn Granlund) writes:
>>>> We have tried to stick to a limit of 1 s on a reasonable current
>>>> computer. Most tests should use much less, if possible.

I underline one word TG used: reasonable. Mine was not :-)

I was only measuring how much the patch increases the time used by the 
test.

But I'm personally still not really understanding which feature is 
tested by the patched code and not tested by the current code.

Ĝis,
m