Re: [gmx-users] Replica Exchange MD on more than 64 processors

2009-12-27 Thread bharat v. adkar
On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: Dear all, I am trying to perform replica exchange MD (REMD) on a 'protein in water' system. I am following instructions given on wiki (How-Tos - REMD). I have to perform the REMD simulation with 35 different temperatures.

Re: [gmx-users] Replica Exchange MD on more than 64 processors

2009-12-27 Thread Mark Abraham
bharat v. adkar wrote: On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: Dear all, I am trying to perform replica exchange MD (REMD) on a 'protein in water' system. I am following instructions given on wiki (How-Tos - REMD). I have to perform the REMD simulation with 35

Re: [gmx-users] Replica Exchange MD on more than 64 processors

2009-12-27 Thread bharat v. adkar
On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: Dear all, I am trying to perform replica exchange MD (REMD) on a 'protein in water' system. I am following instructions given on wiki (How-Tos -

Re: [gmx-users] tpr older version message

2009-12-27 Thread Jack Shultz
If I preped the tpr using amber forcefields, could that be the reason? The mdrun I am using does not have any force field libraries in its directory. On Sat, Dec 26, 2009 at 11:57 PM, Mark Abraham mark.abra...@anu.edu.au wrote: Jack Shultz wrote: I preped this ligand using acpypi followed by

[gmx-users] fix a group in truncated octahedron

2009-12-27 Thread lammps lammps
Hi GMX users, I want to fix a group in a truncate octahedron. How can I dealt with the questions below, 1. I hope the box corresponds to an inscribed circle of cubic of size 40*40*40, how to calculate the box vectors? 2. One spherical rigid body consists of face-center cubic lattices is fixed

[gmx-users] fix a group in truncated octahedron

2009-12-27 Thread chris . neale
Hi Wende, please do not double post. If you are unsure if your post got through, you can easily see the list at http://lists.gromacs.org/pipermail/gmx-users/2009-December/date.html. You did not put units beside 40, so I suppose that you mean 40 A, whereas gromacs uses nm. 1. Make a box

[gmx-users] Decoupling of Coul. and LJ separately in free energy calculation

2009-12-27 Thread Eudes Fileti
Dear GMX users, it is recommended the use of two-step procedure for decoupling the solute from the solvent in hydration free energy calculation: first decreasing the charges in the solute, without soft core, and after that, the same procedure is used for the LJ interactions. In version Gromacs 4,

Re: [gmx-users] Replica Exchange MD on more than 64 processors

2009-12-27 Thread Mark Abraham
bharat v. adkar wrote: On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: Dear all, I am trying to perform replica exchange MD (REMD) on a 'protein in water' system. I am following instructions

Re: [gmx-users] tpr older version message

2009-12-27 Thread Mark Abraham
Jack Shultz wrote: If I preped the tpr using amber forcefields, could that be the reason? No. The mdrun I am using does not have any force field libraries in its directory. That's irrelevant. Only non-mdrun tools care about the contents of $GMXLIB or local force field files. The point of

Re: [gmx-users] tpr older version message

2009-12-27 Thread Jack Shultz
Hi Marc, I figured it out. I tried upir suggestion and tested the gmxcheck but got the following errors gmxcheck.exe -s1 topol.tpr Please give me TWO run input (.tpr/.tpa/.tpb) files or specify the -m flag to generate a methods.tex file gmxcheck.exe -s1 topol.tpr -m

Re: [gmx-users] tpr older version message

2009-12-27 Thread Justin A. Lemkul
Jack Shultz wrote: Hi Marc, I figured it out. I tried upir suggestion and tested the gmxcheck but got the following errors gmxcheck.exe -s1 topol.tpr Please give me TWO run input (.tpr/.tpa/.tpb) files or specify the -m flag to generate a methods.tex file gmxcheck.exe -s1 topol.tpr -m

[gmx-users] convert B-factor

2009-12-27 Thread AntonioLeung
Dear all, I want to convert the difference of two rmsf data sets into B-factor of a coordinate (to illustrate their difference by coloring the structure by B-factor), can anyone tell me how to do it? Thanks in advance! Antonio-- gmx-users mailing listgmx-users@gromacs.org

Re: [gmx-users] convert B-factor

2009-12-27 Thread Mark Abraham
AntonioLeung wrote: Dear all, I want to convert the difference of two rmsf data sets into B-factor of a coordinate (to illustrate their difference by coloring the structure by B-factor), can anyone tell me how to do it? g_rmsf -h Mark -- gmx-users mailing listgmx-users@gromacs.org

Re: [gmx-users] Replica Exchange MD on more than 64 processors

2009-12-27 Thread bharat v. adkar
On Mon, 28 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: Dear all, I am trying to perform replica exchange MD (REMD) on a

Re: [gmx-users] convert B-factor

2009-12-27 Thread AntonioLeung
I know how to calculate, and have calculated the RMSF of two trajectories (of the same molecule), and I want to compare the two RMSFs. I want convert their discrepancy into B-factors. Can you tell me more detailed? -- Original -- From: Mark

[gmx-users] protein simulation

2009-12-27 Thread edmund lee
Dear all, I am trying to do a simulation of protein OMPA. At the step grompp, it shows a fatal error stated Fatal error: Atomtype 'HC' not found! I tried to configure the error but i failed. So, hope that anyone can help me in this. Thnaks..

Re: [gmx-users] Replica Exchange MD on more than 64 processors

2009-12-27 Thread David van der Spoel
bharat v. adkar wrote: On Mon, 28 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: On Sun, 27 Dec 2009, Mark Abraham wrote: bharat v. adkar wrote: Dear all, I am trying to perform replica