is it possible to replace for loops to fast it up?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hello,
Example of something i have is:
for ang=1:length(angle)
parfor dist=1:length(distance)
sol(ang,dist)=abs(pulsecompress_new_3620_check([distance(dist) angle(ang)]));
end
end
every alteration in the function takes a long time. I have long arrays for "distance" and "angle" these two "for" loops might take several days. Is it possible to use the matrix nature of matlab to make this code run faster?
Thanks,
3 commentaires
Réponses (1)
Jan
le 27 Sep 2018
Start the optimization of the code by using the profiler to determine the bottleneck. It is a waste of time to improve a piece of code, which takes a negligible amount of the total run time only: If you accelerate a part be a factor 2, which takes 2% of the run time, the total time is reduced by 1% only.
After finding the most time consuming part, post it here together with some relevant inputs, e.g. created by rand() if possible. The typical dimensions matter.
0 commentaires
Voir également
Catégories
En savoir plus sur Loops and Conditional Statements dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!