Re: [gmx-users] High density after genbox

2014-05-21 Thread sujithkakkat .
Thank you Mark, My Bad. Now fixed. Hope the simulations I did before were not affected, I had defined atomtypes with the correct mass in the .itp file used. Sujith On Wed, May 21, 2014 at 12:59 AM, Mark Abraham mark.j.abra...@gmail.comwrote: Probably garbage in, garbage out. However

Re: [gmx-users] High density after genbox

2014-05-21 Thread Mark Abraham
The simulation uses the .itp contents, which goes into the .tpr. But in general the other tools either don't read that part of the .tpr, or you didn't give it to them in the first place (so they make do with atommass.dat). Mark On Wed, May 21, 2014 at 1:53 PM, sujithkakkat .

[gmx-users] High density after genbox

2014-05-20 Thread sujithkakkat .
Hello, I am working on a water-methane system with OPLSAA for methane and TIP4P/Ice for water. What I find strange is that after solvating the methane molecule with water (tip4p/ice) using the genbox routine, the density appears to be very high at 1661.04 (g/l) . The number of water molecules

Re: [gmx-users] High density after genbox

2014-05-20 Thread Mark Abraham
Probably garbage in, garbage out. However you're measuring the density probably depends on share/top/atommass.dat, which relies on matching atom names to infer atom types and thus masses. If your atom names don't follow its assumptions... at least some tools warn about this in the output. Did the