Re: [gmx-users] Grompp not producing tpr files

2019-06-12 Thread Bratin Kumar Das
Hi Give here the full error On Thu 13 Jun, 2019, 1:35 AM Mark Abraham, wrote: > Hi, > > Was grompp exiting normally, or crashing? Are you looking in the right > place, for a file of the right name? :-) > > Mark > > On Wed., 12 Jun. 2019, 18:42 Israel Estrada, wrote: > > > Hello users, > > >

Re: [gmx-users] Some suggestions about the gmx current tool

2019-06-12 Thread Mark Abraham
Hi Mahsa, Thanks very much for your feedback. Those look like useful changes to the code. Can you please open an issue at https://redmine.gromacs.org with that information? You'll also be able to attach files, unlike on this list :-) Mark On Wed., 12 Jun. 2019, 15:21 Mahsa, wrote: > Hi again,

Re: [gmx-users] compressed pbc box at the end of simulation - membrane protein with ligand

2019-06-12 Thread Mark Abraham
Hi, On Wed., 12 Jun. 2019, 07:47 Prasanth G, Research Scholar, < prasanthgha...@sssihl.edu.in> wrote: > Dear Bratin, > > Thank you for your prompt response. would using an isotropic pcoupletype > have any effect on a membrane protein simulation? > It will keep the box vectors in the same ratio,

Re: [gmx-users] Grompp not producing tpr files

2019-06-12 Thread Mark Abraham
Hi, Was grompp exiting normally, or crashing? Are you looking in the right place, for a file of the right name? :-) Mark On Wed., 12 Jun. 2019, 18:42 Israel Estrada, wrote: > Hello users, > > > I'm running into problems trying to grompp; I'm using the command > > > gmx grompp -f ions.mdp -c

Re: [gmx-users] GPU issue - system that was stable on CPUs crashes

2019-06-12 Thread Mark Abraham
Hi, The most likely explanation here is that the starting configuration isn't very happy (box of wrong size? equilibrating with the unsuitable parrinello-rahman algorithm?). The CPU-only run does a different domain decomposition than the run with GPUs, leading to a different relaxation

[gmx-users] correcting timesteps

2019-06-12 Thread Leigh
Hello I fudged a restart on gromacs 2018 and am missing 195 femtoseconds from my trajectory. This shouldn't matter because I only need a 10 picosecond resolution trajectory. However, when I try to correct the timestep with trjconv and -timestep it doesnt seem to have done anything. *gmx trjconv

[gmx-users] GPU issue - system that was stable on CPUs crashes

2019-06-12 Thread Hannah Magdalena Baumann
Hi, I've been running into following issue in my MD simulation: While running the simulation on CPUs everything worked fine. But when running the simulation with the same input files on GPUs only minimization and NVT equilibration run successfully. When starting the NPT equilibration the system

[gmx-users] Analysis the dynamics of water molecules

2019-06-12 Thread Soham Sarkar
Hello, I have a 200ns trajectory of protein-water-urea mixture, saved at 2ps interval. I want to calculate the angle distribution of water molecule (http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists *

[gmx-users] Atomtype opls_116 not found when runnning GROMPP

2019-06-12 Thread Fernando Nunes
Hello, I am trying to start a minimization in gromacs with a system containing a LC and a IL, and when I try to introduce water in the system and minimize, while running grompp: gmx grompp -f em.mdp -c system-solvated.gro -p system-solvated.top -o system-solvated-em.tpr *And the

[gmx-users] Grompp not producing tpr files

2019-06-12 Thread Israel Estrada
Hello users, I'm running into problems trying to grompp; I'm using the command gmx grompp -f ions.mdp -c etc_box.gro -o ions.tpr -p topol.top and the process shows no error messages, but output files are not being generated. I'm running this on a small molecule, about 20 atoms, with the

Re: [gmx-users] Some suggestions about the gmx current tool

2019-06-12 Thread Mahsa
Hi again, Something went wrong with the equations which I tried to show. So for the first equation please see eq. 9 in this paper: https://aip.scitation.org/doi/10.1063/1.2868752 and the second missing formula is: 1 / 6*V*K_B*T = 7.20677e-12 Best regards, Mahsa On Wed, Jun 12, 2019 at 3:12

[gmx-users] Some suggestions about the gmx current tool

2019-06-12 Thread Mahsa
Hi gmx-users, I use gmx current tool to calculate static conductivity by version 2018: gmx current -f md.xtc -o -dsp -md -mj -temp 423 -nojump -n index.ndx -s topol.tpr Indeed the tool is useful, but I think some parts in the output are confusing and need to be improved. I think the generated

[gmx-users] Analysis of water molecules

2019-06-12 Thread Soham Sarkar
Hello, I have a 200ns trajectory of protein-water-urea mixture, saved at 2ps interval. I want to calculate the angle distribution of water molecule (http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists *