On Mon, Jul 25, 2016 at 4:08 AM, Max Görner <address@hidden> wrote:
Thank you for your fast reply. Below you can find a script showing two scenarios. The script also shows that the runtime is not due to memory assignment or writing.
#!/usr/bin/octave --no-init-file
n = 4.6E7;
k = 0.72*n;
tic(); randperm(n, k); toc() #1.7 seconds
tic(); 1337 + zeros(1, k); toc() #0.2 seconds
n = 10000;
tic(); rand(n); toc() #1.7
tic(); 1337 + zeros(n); toc() #0.7
This last time looks wrong.
here is what I get
>> n = 4.6E7;
>> k = 0.72*n;
>> tic(); randperm(n, k); toc()
Elapsed time is 0.947548 seconds.
>> tic(); 1337 + zeros(1, k); toc()
Elapsed time is 0.356367 seconds.
>> n = 10000;
>> tic(); rand(n); toc()
Elapsed time is 1.1658 seconds.
>> tic(); 1337 + zeros(n); toc()
Elapsed time is 1.56768 seconds.
Sincerely
Max Görner
--
PGP: https://wwwpub.zih.tu-dresden.de/~maxgoern/2FE6023F.asc
_______________________________________________
Help-octave mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/help-octave