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The convergence criterion in YADE


Hi, all:

    I am currently concentrated on the convergence criteria of the sphere 
system in YADE, for example, like in ITACSA's PFC2D software, the convergence 
criteria is that when the maximum unbalanced force is less than a certain 
value, the whole system is considered in equilibrium, or when the total 
relative displacement e.g., ||D(i)-D(i-1)||/||D(i-1)||<TOL, the whole system 
is considered in equilibrium. Is there any similar criterion that is already 
built within YADE? or I will have to implement it? Since currently I can only 
use the number of calculation steps?

    Thanks a lot!

Feng Chen

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