[gmx-users] genbox using tip5p water results in too few number of water molecules

[JW Feng]

Hello,

I used genbox (version 3.3.1 and 3.3.2) to create a 1nm box of SPC,
TIP4P and TIP5P water with "
genbox -cs <water model>.gro -box 1 1 1".  The TIP5P box contains half
the number of water molecules compared to TIP4P and SPC.
SPC:   33 SOL molecules, density=987.205 (g/l)
TIP4P:  31 SOL molecules
TIP5P:  15 SOL molecules

Can anyone please explain this?  How do I get genbox to create a box
with the right number of TIP5P water molecules.
Thanks,

JW

-- 
Jianwen A Feng
Center for Computational Biology
Washington University in St. Louis