Re: Please test pari-2.11.3 prerelease 1

[James Wanless <james@grok.ltd.uk>]

2.11.3pre1 (nbthreads = 4)

1:62004

2:58477

3:60179

4:59802

5:59267

6:59135

7:60054

8:60752

9:57857

10:61302

2.11.2 (threading engine : single)

1:28196

2:27404

3:26215

4:27252

5:27068

6:27716

7:27074

8:26912

9:27414

10:26007

J

On 17 Feb 2020, at 22:43, Bill Allombert <Bill.Allombert@math.u-bordeaux.fr> wrote:

On Mon, Feb 17, 2020 at 07:47:37PM +0000, James Wanless wrote:

Hi Bill

Great, thanks! Fixed.

[Though I ought to just mention there’s possibly a speed regression???
On macports version of single-threaded 2.11:
? ##
 ***   last result computed in 24,431 ms.
On this latest binary (4 threads) :
? ##
 ***   last result computed in 57,177 ms. ]

Could you check using the real time instead of the CPU time ?

p=nextprime(10^500);
for(i=1,10,setrand(i);t=getwalltime();C=primecert(p);print(i,":",getwalltime()-t))

Cheers,
Bill.