Ciao Marco,
> Date: Thu, 30 Jul 2015 17:21:40 +0200
> From: "Marco Bodrato" <bodr...@mail.dm.unipi.it>
>
> Ciao Paul,
>
> Il Mer, 22 Gennaio 2014 1:00 pm, Zimmermann Paul ha scritto:
> > tarte% ./speed -s 1000,3000,10000 -r mpn_sqrtrem mpn_rootrem.2
> > overhead 0.000000002 secs, precision 10000 units of 3.53e-10 secs,
> > CPU freq 2833.00 MHz
> > mpn_sqrtrem mpn_rootrem.2
> > 1000 0.000153504 #0.9454
> > 3000 0.000816813 #0.9187
> > 10000 0.004606970 #0.9623
>
> There are some more experiment that we can try, but the anomaly you
> spotted should be healed now:
> $ tune/speed -s 1000,3000,10000 -r mpn_sqrt mpn_root.2 mpn_sqrtrem
> mpn_rootrem.2
> overhead 0.000000002 secs, precision 10000 units of 2.86e-10 secs, CPU
> freq 3500.08 MHz
> mpn_sqrt mpn_root.2 mpn_sqrtrem mpn_rootrem.2
> 1000 #0.000051516 1.3866 1.4643 2.1827
> 3000 #0.000295437 1.3168 1.3855 1.8478
> 10000 #0.001850352 1.2448 1.3149 1.7012
>
> You are welcome to test and/or give further suggestions
>
> Best regards,
> m
good to see GMP is improving! I confirm the above on my machine with the latest
and greatest development version:
zimmerma@tarte:/tmp/gmp/tune$ ./speed -s 1000,3000,10000 -r mpn_sqrt mpn_root.2
mpn_sqrtrem mpn_rootrem.2
overhead 0.000000002 secs, precision 10000 units of 3.53e-10 secs, CPU freq
2833.00 MHz
mpn_sqrt mpn_root.2 mpn_sqrtrem mpn_rootrem.2
1000 #0.000102105 1.3736 1.4498 2.1121
3000 #0.000578114 1.2680 1.3615 1.7848
10000 #0.003425173 1.2228 1.2868 1.6352
Best regards,
Paul
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