The computational cost by AIMD and NNIP-MD are shown in the last columns of Table , where it is shown that the efficiency of the NNIP-MD simulation is about 3 orders greater than that of AIMD for all the molten salt systems and the SEMs are reduced by about 1 order of magnitude compared to the calculation reported. The AIMD cost for 128, 256 and 512 systems are estimated over 100 MD-steps.