Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451
Bruno Chareyre proposed the following answer: It is not directly related to computation time but do you know that right after adder() there is a burst of kinetic energy because you insert new spheres through the previous ones (randomly overlapping in the same volume)? I think I realize why this non linearity appears: you increase the number of particles without changing their size hence the coordination number is increasing. 2400 spheres is when the box is maximally filled, leading to a non linear change between 2000 and 2400. Maybe ligghts implementation of Hertz is more efficient and then this effect is less visible? I also suspect Ig2_Facet_Sphere, which generates and manipulate matrices every time even for virtual interactions [1]. This is actually a strange case to test scaling since the number of spheres cannot exceed ~2500 by definition... Bruno [1] https://github.com/yade/trunk/blob/2018.02/pkg/dem/Ig2_Facet_Sphere_ScGeom.cpp#L36 -- You received this question notification because your team yade-users is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
