[Scilab-users] Logical zero

[Stéphane Mottelet]

BTY, I am worried about the Scilab 6.0 timing (3.3228213 seconds)  of

a(1:n,1:m)=%f;

i.e. more than ten times slower than Scilab 5.5.1 (0.2964019 seconds).

Does somebody have an explanation ?

S.


Le 01/02/2016 14:40, Jan-Åge Langeland a écrit :
> I ran a little speed test with the different alternatives, I found the 
> results surprising:
>
> Jan
>
> //script ftest.sce m=10000 n=10000 v=ver(); disp(v(1,1:2)); clear a; 
> timer(); a = zeros(n, m) == 1; //best in Scilab 6.0.0 disp(timer()); 
> clear a; timer(); a=zeros(n,m)>0; disp(timer()); clear a; timer(); 
> a=%f(ones(n,m)); disp(timer()); clear a; timer(); 
> *a**(**1**:**n**,**1**:**m**)**=**%f**;* //best in Scilab 5.5.1 
> disp(timer()); clear a; //end script ftest.sce -->exec('ftest.sce',-1) 
> !Scilab Version: 5.5.1.1412169962 ! 1.4820095000000037543941 
> 1.372808800000029805233 0.5304033999999546722393 
> 0.2964018999999780135113 -->exec('ftest.sce',-1) !Scilab Version: 
> 6.0.0.1447231131 ! 0.6708043 1.3260085 2.7300175 3.3228213
>
>
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-- 
Département de Génie Informatique
EA 4297 Transformations Intégrées de la Matière Renouvelable
Université de Technologie de Compiègne -  CS 60319
60203 Compiègne cedex

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