Re: [gmx-users] decomposing the energy

2011-05-14 Thread Mark Abraham
On 15/05/2011 12:01 AM, Sikandar Mashayak wrote: Hey Mark Do you mean removing all bond definitions from topology file, when you say well constructed topology to exclude all bonded-interactions in rerun? I said you can decompose the bonded interactions. You can have none by removing all bond

[gmx-users] Re: Reference pressure and pressure fluctuations in an NPT simulation

2011-05-14 Thread Andrew DeYoung
Dear Justin and Mark, Thank you very much! I truly appreciate it. Andrew DeYoung Carnegie Mellon University -- gmx-users mailing listgmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search b

Re: [gmx-users] decomposing the energy

2011-05-14 Thread Sikandar Mashayak
Hey Mark Do you mean removing all bond definitions from topology file, when you say well constructed topology to exclude all bonded-interactions in rerun? thanks sikandar On Sat, May 14, 2011 at 8:01 AM, Mark Abraham wrote: > On 14/05/2011 10:52 PM, XAvier Periole wrote: > >> >> Two things you

Re: [gmx-users] decomposing the energy

2011-05-14 Thread Mark Abraham
On 14/05/2011 10:52 PM, XAvier Periole wrote: Two things you have to be careful about: 1- use trr trajectory files. xtc precision is not sufficient and it will give a lot of discrepancies at least for the bonded terms. 2- set the nstlist to 1 as the neiboring list should be undated for each fr

Re: [gmx-users] decomposing the energy

2011-05-14 Thread XAvier Periole
Two things you have to be careful about: 1- use trr trajectory files. xtc precision is not sufficient and it will give a lot of discrepancies at least for the bonded terms. 2- set the nstlist to 1 as the neiboring list should be undated for each frame and not every 5/10 as it is normally set

Re: [gmx-users] decomposing the energy

2011-05-14 Thread Mark Abraham
On 14/05/2011 9:11 PM, Justin A. Lemkul wrote: Ramachandran G wrote: Hello gmx users: I did 1ns simulation for my system and have the trajectory and energy files. Now i want to see the energy of some specific residues. So, i decompose(separated) the energy groups and edited the mdp fil

Re: [gmx-users] decomposing the energy

2011-05-14 Thread Justin A. Lemkul
Ramachandran G wrote: Hello gmx users: I did 1ns simulation for my system and have the trajectory and energy files. Now i want to see the energy of some specific residues. So, i decompose(separated) the energy groups and edited the mdp file. Using the mdp file, i created a new tpr file

[gmx-users] decomposing the energy

2011-05-14 Thread Ramachandran G
Hello gmx users: I did 1ns simulation for my system and have the trajectory and energy files. Now i want to see the energy of some specific residues. So, i decompose(separated) the energy groups and edited the mdp file. Using the mdp file, i created a new tpr file and rerun the mdrun using th

[gmx-users] electrostatic potential

2011-05-14 Thread delara aghaie
Hello all I had simulated Tip4p-2005 water system with different concentrations of MgCl2 and Cacl2 salts. I have calculated the Surface tensions of the systems and I see that presence of the salt increases the S.T of water layer. Now to do more analysis i want to calculate the contributions of wa