A flowchart of the CAC simulation scheme based on spatial decomposition is presented below:


where there are three types of CAC simulations: dynamics, quasistatics, and hybrid, specified by the simulator.

In CAC simulations, the elements/nodes/atoms information can either be created from scratch (model_setup.f90) or read from the cac_in.restart file (read_restart.f90), depending on the parameters in the restart command.

The dynamic CAC scheme is


The quasistatic CAC scheme is


The hybrid CAC scheme is


All these four figures are respectively adapted from Fig. 1, Fig. S1, Fig. S2, and Fig. 2 of Xu et al., 2018. More information of the dynamic and quasistatic CAC can be found in the dynamics and minimize commands, respectively.