[gmx-users] Analysis with .sh file

2020-01-30 Thread Riccardo Concu
Dear all, I have recently upgrade my Gromacs to the 2019 version from the 5.0.4 and I found out that now that while I'm trying to use a .sh, as I was doing in the version 5.0.4, now I'm receiving back an error since the syntax is wrong. I'm wondering if someone could please help me.

[gmx-users] Pressure coupling error

2015-01-13 Thread Riccardo Concu
Hi all, I’m receiving this error from grompp: ERROR 1 [file npt.mdp, line 50]: Pressure coupling not enough values (I need 2) I think I’ve inserted in the .mdo the required values: integrator = md tinit= 0 dt = 0.002 nsteps

Re: [gmx-users] Pressure coupling error

2015-01-13 Thread Riccardo Concu
PhD Student School of Engineering and Physical Sciences Heriot-Watt University Edinburgh EH14 4AS, UK From: gromacs.org_gmx-users-boun...@maillist.sys.kth.se [gromacs.org_gmx-users-boun...@maillist.sys.kth.se] on behalf of Riccardo Concu [ric.co

[gmx-users] Position restrain

2014-09-17 Thread Riccardo Concu
Dear Gromacs users, I want to simulate a silica polymer composed by some molecules. I want to study the affinity of some molecules with a fixed configuration of this silica polymer. For this reason, I applied the position restrain in the .itp files. Now my question, I need to P rescale the box

[gmx-users] abnormal MSD values

2014-05-15 Thread Riccardo Concu
Dear gmx-users, I’m having some problems trying to understand anomalous diffusion coefficient values calculated with g_msd. MSD was calculated for two box with a run of 100ns using these settings integrator = md tinit= 0 dt = 0.002 nsteps

Re: [gmx-users] npt dynamics generate a lot of pdb files

2014-05-06 Thread Riccardo Concu
Dear Natalia, that error basicly means your system is not well equilibrated, or it is exploading and so on. Normally, reducing the nstlist value in your mdp file should work. Regards -Original Message- From: Natalia Alveal F. Sent: Tuesday, May 06, 2014 10:32 PM To:

[gmx-users] NPT or NVT

2014-01-02 Thread Riccardo Concu
Dear all, I’ve a doubt/question. I ran a long simulation of my system (100ns) at 298K. Now I want to see the effect of the T on my system and I want to run a 20ns simulation at 350K and 400K, now my question is: Do I have to run this simulation under the NPT condition or under the NVT (using an