[gmx-users] plain cutoff coulomb

[Cheong Wee Loong, Daniel]

Hi all,

This seems like a really simple and silly question, but I have read through the manual and the archives and can't seem to find anything about it.

If I were to set coulombtype = cutoff, g_energy will still calculate Coul-LR term which suggests that Gromacs calculates some long range correction term for the coulomb interactions beyond the cut-off rcoulomb.  But I can't seem to find any explanation on how the interactions beyond rcoulomb is calculated when not using Ewald or PME.  Can anyone enlighten me?

Thank you!

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