Re: [gmx-users] intrinsic viscosity

2010-03-08 Thread David van der Spoel
On 3/8/10 11:44 PM, Mark Abraham wrote: - Original Message - From: ceste...@unsl.edu.ar Date: Tuesday, March 9, 2010 0:12 Subject: [gmx-users] intrinsic viscosity To: gmx-users@gromacs.org Hi All: I am using Gromacs 4.0.2 for the MD simulation of carbohydrates and I am trying to compute

Re: [gmx-users] g_mindist output

2010-03-08 Thread Mark Abraham
On 9/03/2010 12:22 PM, Justin A. Lemkul wrote: Dian Jiao wrote: Hi gmx users, I was running g_mindist as a batch job for a big number of files on a pbs cluster. The huge amount of output was redirected to the error file which has a size limit. Is there way to discard the output of g_mindist.

Re: [gmx-users] Re: mdrun_d not running in parallel

2010-03-08 Thread Mark Abraham
On 9/03/2010 3:42 PM, Sarath Kumar wrote: Message: 1 Date: 8 Mar 2010 11:49:40 - From: "sarbani chattopadhyay" mailto:sarbani_...@rediffmail.com>> Subject: [gmx-users] mdrun_d not running in parallel To: mailto:gmx-users@gromacs.org>> Message-ID: <20100308114940.35

[gmx-users] Re: mdrun_d not running in parallel

2010-03-08 Thread Sarath Kumar
> > Message: 1 > Date: 8 Mar 2010 11:49:40 - > From: "sarbani chattopadhyay" > Subject: [gmx-users] mdrun_d not running in parallel > To: > Message-ID: <20100308114940.35527.qm...@f5mail-236-242.rediffmail.com> > Content-Type: text/plain; charset="utf-8" > Hi , >I had installed gromacs4.0

Re: [gmx-users] g_mindist output

2010-03-08 Thread Dian Jiao
Thank you, Justin. On Mon, Mar 8, 2010 at 6:22 PM, Justin A. Lemkul wrote: > > > Dian Jiao wrote: > >> Hi gmx users, >> >> I was running g_mindist as a batch job for a big number of files on a pbs >> cluster. The huge amount of output was redirected to the error file which >> has a size limit. I

Re: [gmx-users] g_mindist output

2010-03-08 Thread Justin A. Lemkul
Dian Jiao wrote: Hi gmx users, I was running g_mindist as a batch job for a big number of files on a pbs cluster. The huge amount of output was redirected to the error file which has a size limit. Is there way to discard the output of g_mindist. I tried /dev/null as below, it didn't work.

[gmx-users] g_mindist output

2010-03-08 Thread Dian Jiao
Hi gmx users, I was running g_mindist as a batch job for a big number of files on a pbs cluster. The huge amount of output was redirected to the error file which has a size limit. Is there way to discard the output of g_mindist. I tried /dev/null as below, it didn't work. g_mindist -f tra.pdb -n

Re: [gmx-users] large number of molecules

2010-03-08 Thread Oliver Stueker
Hi Karim, On Mon, Mar 8, 2010 at 18:11, Justin A. Lemkul wrote: > > > ksm tprk wrote: >> >> My mdp file is what http://cs86.com/CNSE/SWNT.htm has. I used nose-hoover >> for Tcouple. >> and the beginning of mdp code looks like: >> > > Partial information is useless.  Post the whole .mdp file; ther

Re: [gmx-users] large number of molecules

2010-03-08 Thread Justin A. Lemkul
ksm tprk wrote: And one more thing. I change morse = no to yes but it was not good too. Do you know why morse does not work? The "morse" option corresponds to a Morse bond potential, which may or may not be appropriate for use with whatever force field you're using (which you haven't sai

Re: [gmx-users] large number of molecules

2010-03-08 Thread Justin A. Lemkul
I wonder what's going on here: ; Groups to couple separately tc-grps = T1 T2 T3 T4 T5 T6 T7 ; Time constant (ps) and reference temperature (K) tau_t= 40 0 0 0 0 0 0 40 ref_t= 320 0 0 0 0 0 280 So you have multiple parts of your system at

Re: [gmx-users] large number of molecules

2010-03-08 Thread Justin A. Lemkul
ksm tprk wrote: My mdp file is what http://cs86.com/CNSE/SWNT.htm has. I used nose-hoover for Tcouple. and the beginning of mdp code looks like: Partial information is useless. Post the whole .mdp file; there are plenty of parameters that can be set incorrectly or inconsistently. -Justi

RE: [gmx-users] large number of molecules

2010-03-08 Thread ksm tprk
My mdp file is what http://cs86.com/CNSE/SWNT.htm has. I used nose-hoover for Tcouple.and the beginning of mdp code looks like: ; RUN CONTROL PARAMETERSintegrator = md; Start time and timestep in pstinit= 0dt = 0.0005nsteps

Re: [gmx-users] problem with interaction energy calculated by g_energy

2010-03-08 Thread Mark Abraham
- Original Message - From: Qiong Zhang Date: Monday, March 8, 2010 20:35 Subject: [gmx-users] problem with interaction energy calculated by g_energy To: gmx-users@gromacs.org --- | > Dear gmx users, > > I am studying the adsorptio

Re: [gmx-users] reading xtc,trr and edr files

2010-03-08 Thread Mark Abraham
Please search the webpage. There's a solution for writing your own C tools already. Mark - Original Message - From: Paymon Pirzadeh Date: Tuesday, March 9, 2010 9:42 Subject: [gmx-users] reading xtc,trr and edr files To: gmx-users@gromacs.org > Hello, > Is there any links to check or c

Re: [gmx-users] intrinsic viscosity

2010-03-08 Thread Mark Abraham
- Original Message - From: ceste...@unsl.edu.ar Date: Tuesday, March 9, 2010 0:12 Subject: [gmx-users] intrinsic viscosity To: gmx-users@gromacs.org > Hi All: > I am using Gromacs 4.0.2 for the MD simulation of carbohydrates > and I am > trying to compute the intrinsic viscosity of them.

[gmx-users] reading xtc,trr and edr files

2010-03-08 Thread Paymon Pirzadeh
Hello, Is there any links to check or commands to read the xtc,trr and edr files for our analysis (writing our own scripts)? What are the format of data in these files for reading them? Payman -- gmx-users mailing listgmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users

Re: [gmx-users] mdrun_d not running in parallel

2010-03-08 Thread Mark Abraham
- Original Message - From: "Justin A. Lemkul" Date: Monday, March 8, 2010 23:33 Subject: Re: [gmx-users] mdrun_d not running in parallel To: Discussion list for GROMACS users > > > sarbani chattopadhyay wrote: > >Hi , > >I had installed gromacs4.0.7 in double preicision in 64 bit Mac

RE: [gmx-users] large number of molecules

2010-03-08 Thread Dallas B. Warren
You are going to have to provide a lot more details than that if you want some help. What is "wrong results"? What is your input (copy and paste some commands in)? What is the output (copy and paste)? What makes you think the results are "wrong"? In what situations are they "right"? ... and

[gmx-users] large number of molecules

2010-03-08 Thread ksm tprk
Hello, I simulate carbon nanotube and basically I follow up http://cs86.com/CNSE/SWNT.htmBut when I increase the number of molecules (like 15000) , it gives me wrong results.Do you know why this is happen? Thank you,Kasim __

[gmx-users] intrinsic viscosity

2010-03-08 Thread cesteban
Hi All: I am using Gromacs 4.0.2 for the MD simulation of carbohydrates and I am trying to compute the intrinsic viscosity of them. Can I have it whith same gromacs programs? Sameone has experience about this? Any help would be appreciated Carmen -- gmx-users mailing listgmx-users@gromacs.

Re: [gmx-users] mdrun_d not running in parallel

2010-03-08 Thread Justin A. Lemkul
sarbani chattopadhyay wrote: Hi , I had installed gromacs4.0.7 in double preicision in 64 bit Mac 10.6.1 computer with 8 dual core processors. 1) I installed the fftw-3.0.1 in the following way ( in the directory) ./configure --enable float sudo make sudo make install make distclean ./confi

Re: [gmx-users] Subtraction of xpm files

2010-03-08 Thread Justin A. Lemkul
Itamar Kass wrote: Hi, I have calculated the Contact Maps of two proteins (WT and mutated one) and wish to compare the output XPM files. I thought the easiest way is to subtract the WT CM from the mutated proteins CM. I wonder if someone had done it and if so, is there any script to do so?

[gmx-users] Re: AMBER force fields for ATP

2010-03-08 Thread Thomas Piggot
No intrusion, but I have forwarded this to the GROMACS mailing list as all correspondence is best kept there. It gives you have a much greater chance of getting (better) help. The information needed for the parameters is best obtained from the supporting information given with the Carlson pape

[gmx-users] mdrun_d not running in parallel

2010-03-08 Thread sarbani chattopadhyay
Hi , I had installed gromacs4.0.7 in double preicision in 64 bit Mac 10.6.1 computer with 8 dual core processors. 1) I installed the fftw-3.0.1 in the following way ( in the directory) ./configure --enable float sudo make sudo make install make distclean ./conf

Re: [gmx-users] g_rms warning

2010-03-08 Thread Tsjerk Wassenaar
Hi Carla, You'll have to use index groups to extract a trajectory and reference that correspond. If you have those you can get on with the RMSD. Cheers, Tsjerk On Mon, Mar 8, 2010 at 11:44 AM, Carla Jamous wrote: > Hi everyone, please I just need a precision: > > I need to calculate the RMSD o

[gmx-users] g_rms warning

2010-03-08 Thread Carla Jamous
Hi everyone, please I just need a precision: I need to calculate the RMSD of a trajectory by comparing it to a reference structure that doesn't have the same number of atoms. Gromacs is calculating the RMSD, but meanwhile it generates this warning:"topology has 4839 atoms, whereas trajectory has 4

[gmx-users] problem with interaction energy calculated by g_energy

2010-03-08 Thread Qiong Zhang
Dear gmx users, I am studying the adsorption behavior of a molecule ( molecule 1) on a surface (molecules 2). Based on the production run, I calculated the interaction energy between molecule 1 and molecules 2 by g_energy. Here comes the first question: Why only short range interactions between