Table The excess chemical potentials (kcal/mol) for the Na + ion and the Cl -ion in molten NaCl at 1150 K. The second column is the packing contribution. The third column is the inner-shell contribution. The fourth column is the long-ranged contribution, and the fifth column is the finite-size correction (FS). The sixth column is the excess chemical potential of each solute ion and solute ion pair. The number of solvent ion pairs is given after "NaCl". In the parentheses is the standard error of the mean (SEM) over 10 blocks. The last two columns give an estimate of the computational cost (core-hour/atom/MD-step) for the PK contribution where γ=0.1. The calculations were performed on the OSC Pitzer cluster (Dual Intel Xeon 6148s Skylakes 2.4 GHz and 192 GB RAM). AIMD used 400 cores (4 nodes) and NNIP-MD used 40 cores (1 node) in a molten salt using deep learning techniques.