[gmx-users] RE: How to freeze the atoms?

2009-07-05 Thread Vitaly V. Chaban
You can change integrator back to l-bfgs and the requested atoms will be non-movable as well. MD in the file is just because I ran EM first and then MD to check the problem. So, the last keyword is present. What kind of calculation do you want to perform at all? - It's even better to run MD for

Re: [gmx-users] Doxygen

2009-07-05 Thread David van der Spoel
Mark Abraham wrote: Syed Tarique Moin wrote: Hello, Can anybody help me to get comment from gmx source code via doxygen or there is some other way for it. No. You have to download the source and read it. That is to say, we have been planning to start using doxygen for a while, and in

Re: [gmx-users] Arbitary small molecule for Martini force field

2009-07-05 Thread XAvier Periole
I tried Martini force field and found it calculates with a good result in appearance for a *specific* calculation prepared at the Martini website. That is good to know :)) Now, I wish to use another small molecule (such as lipid) for CG simulation. Starting from the chemical structure, I

[gmx-users] GIT

2009-07-05 Thread Florian Dommert
Hello, on Friday I tried to clone the git repo for the first time, but unfortunately I was not successful and got following error message: # git clone git://gromacs.cbr.su.se/gmx-src.git Initialized empty Git repository in /Users/dommert/icp/develop/gromacs/gmx-src/.git/ fatal: The

[gmx-users] params for g_cluster and g_clustsize

2009-07-05 Thread Dmitri Dubov
Dear gmx'ers, Could you explain me the following points in manuals for g_cluster and g_clustsize programs? 1) Manual for g_cluster: single linkage: add a structure to a cluster when its distance to any element of the cluster is less than cutoff... Other options... -cutoff real 0.1 RMSD cut-off

Re: [gmx-users] GIT

2009-07-05 Thread David van der Spoel
Florian Dommert wrote: Hello, on Friday I tried to clone the git repo for the first time, but unfortunately I was not successful and got following error message: # git clone git://gromacs.cbr.su.se/gmx-src.git Initialized empty Git repository in

Re: [gmx-users] params for g_cluster and g_clustsize

2009-07-05 Thread David van der Spoel
Dmitri Dubov wrote: Dear gmx'ers, Could you explain me the following points in manuals for g_cluster and g_clustsize programs? 1) Manual for g_cluster: single linkage: add a structure to a cluster when its distance to any element of the cluster is less than cutoff... Other options...

Re: [gmx-users] GIT

2009-07-05 Thread Florian Dommert
* David van der Spoel sp...@xray.bmc.uu.se [2009-07-05 08:36:27 -0400]: Florian Dommert wrote: Hello, on Friday I tried to clone the git repo for the first time, but unfortunately I was not successful and got following error message: # git clone git://gromacs.cbr.su.se/gmx-src.git

Re: [gmx-users] GIT

2009-07-05 Thread David van der Spoel
Florian Dommert wrote: * David van der Spoel sp...@xray.bmc.uu.se [2009-07-05 08:36:27 -0400]: Florian Dommert wrote: Hello, on Friday I tried to clone the git repo for the first time, but unfortunately I was not successful and got following error message: # git clone

[gmx-users] a bug for mpi mdrun?

2009-07-05 Thread wuxiao
Dear gmx users, By trials, I find a strange thing: After some energy minimizations (EM) in parallel, steep and cg, the system would explode into parts unexpectedly(between parts, long distance does not facilitate formation of covalent bonds as should); However, while running EM not in

[gmx-users] changing pdb file residue name

2009-07-05 Thread Rukmani Sridharan
Hi, I am a bit new to gromacs and am familiarizing myself with the various commands. I want to simulate an unusual molecule, with the formula C7H10. The downloaded pdb file had the residue mname MON which gromacs does not recognize. How should i name the residue?

Re[2]: [gmx-users] params for g_cluster and g_clustsize

2009-07-05 Thread Dmitri Dubov
Thanks, David. Sorry, maybe my questions were too fuzzy. They concern the definition of cluster in these codes. 1) When we estimate through single linkage whether the structure belongs to the cluster we should find the smallest distance between any element of the structure and any element of

Re[2]: [gmx-users] params for g_cluster and g_clustsize

2009-07-05 Thread Dmitri Dubov
In addition to previous letter (Monday is hard-day!) It looks like I have known the answers to my questions. Maybe the reason is that the g_cluster code compared to g_clustsize includes not only single linkage but also other algorithms. So the RMSD feature and smaller default value of -cutoff

[gmx-users] problem during energy minimisation using cg integrater

2009-07-05 Thread nitu sharma
Dear all , I am trying to energy minimisation of one protein molecule but during the grompp mdrun I am facing error again and again like this- t = -0.000 ps: Water molecule starting at atom 35705 can not be settled. Check for bad contacts and/or reduce the timestep. Back