[gmx-users] REMD queries

2012-10-13 Thread rama david
Hi friends , I am new to the REMD simulation. I read some thread from archive but they not clarify by queries that why I am asking you on forum I have following Queries: 1. I want to simulate protein by remd at physiological temp ( 310). So my initial temp of replica shou

Re: [gmx-users] Concerning a Fatal Error!

2012-10-13 Thread Justin Lemkul
On 10/13/12 4:48 AM, Arman Mahboubi Soufiani wrote: Dear all friends, When I want to run a short EM to get my structure more stable for further equilibration and production steps I get the following error as outpu: *Library file in current dir nor not found justPLA-em.tpr_d1.xvgin default di

Re: [gmx-users] Re: Concerning a Fatal Error!

2012-10-13 Thread Justin Lemkul
On 10/13/12 9:05 AM, Arman M. Soufiani wrote: Dear Justin, I appreciate your direction. I will try to find out, however, could not fix it yet. Providing your exact mdrun command, copied and pasted from the terminal, is the fastest way to get a solution. -Justin -- ==

[gmx-users] Re: small tc-group

2012-10-13 Thread fciocco
Thanks, I'll do some test to compare the different choices regards, Facundo -- View this message in context: http://gromacs.5086.n6.nabble.com/small-tc-group-tp5001927p5001986.html Sent from the GROMACS Users Forum mailing list archive at Nabble.com. -- gmx-users mailing listgmx-users@gr

Re: [gmx-users] Re: Concerning a Fatal Error!

2012-10-13 Thread Arman Mahboubi Soufiani
Dear Justin, The followings are the two successive commands I used: *grompp -f justPLA.mdp -c 20LA-2layer-4chains.gro -p t-PLA.top -o justPLA-em.tpr mdrun -deffnm justPLa-em* BR Arman On Sat, Oct 13, 2012 at 3:07 PM, Justin Lemkul wrote: > > > On 10/13/12 9:05 AM, Arman M. Soufiani wrote: >

[gmx-users] problem with pull code

2012-10-13 Thread Sanku M
Hi all,   I am trying to do an umbrella sampling of a fairly extended state of the protein along end-to-end distance of it. I am using a rectangular box ( elongated along x ) of dimension 20 nm X 8nm X 8 nm. I am doing the simulation in NVT ensemble. gromacs 4.5.4 is being used. But, even after

[gmx-users] Running Gromacs on Rescale

2012-10-13 Thread Joris Poort
Dear users, At Rescale (www.rescale.com) we have developed a cloud simulation platform to run any type of simulation workflow on-demand. We specifically focus on highly scalable implementations of compute intensive simulation codes along with applied math tools to set up designs of experiment or

Re: [gmx-users] Re: Concerning a Fatal Error!

2012-10-13 Thread Justin Lemkul
On 10/13/12 9:49 AM, Arman Mahboubi Soufiani wrote: Dear Justin, The followings are the two successive commands I used: *grompp -f justPLA.mdp -c 20LA-2layer-4chains.gro -p t-PLA.top -o justPLA-em.tpr mdrun -deffnm justPLa-em* These commands would not produce the error posted previously.

Re: [gmx-users] Re: LINCS metal-ligand bonds

2012-10-13 Thread Justin Lemkul
On 10/12/12 2:50 PM, tarak karmakar wrote: Thanks Justin & Chaban. Even I did the simulation for 3 ns and it worked well. Now the issue in my case is , while I was not imposing the M-N constraints, the metal was rattling around (little bit) and the histidine residues were moving back and fort

Re: [gmx-users] problem with pull code

2012-10-13 Thread Justin Lemkul
On 10/13/12 3:17 PM, Sanku M wrote: Hi all, I am trying to do an umbrella sampling of a fairly extended state of the protein along end-to-end distance of it. I am using a rectangular box ( elongated along x ) of dimension 20 nm X 8nm X 8 nm. I am doing the simulation in NVT ensemble. grom

[gmx-users] error: group protein not found in index file

2012-10-13 Thread Liu, Hanzhong
Hi All: I'm trying to set up a small box with only water and ions (no protein) and run MD simulation. The commands I used to set up my system and running MD are as follows: genbox -cs spc216.gro -o water.gro -maxsol 256 -box 2.1 2.1 2.1 pdb2gmx -f water.gro -q water.pdb -n index.

Re: [gmx-users] error: group protein not found in index file

2012-10-13 Thread Justin Lemkul
On 10/13/12 10:32 PM, Liu, Hanzhong wrote: Hi All: I'm trying to set up a small box with only water and ions (no protein) and run MD simulation. The commands I used to set up my system and running MD are as follows: genbox -cs spc216.gro -o water.gro -maxsol 256 -box 2.1 2.1 2.1

RE: [gmx-users] error: group protein not found in index file

2012-10-13 Thread Liu, Hanzhong
Thanks! Problem solved!!! From: gmx-users-boun...@gromacs.org [gmx-users-boun...@gromacs.org] on behalf of Justin Lemkul [jalem...@vt.edu] Sent: Saturday, October 13, 2012 10:35 PM To: Discussion list for GROMACS users Subject: Re: [gmx-users] error: group

[gmx-users] equilibrium

2012-10-13 Thread mohammad agha
Dear Gromacs Users, I have one system consists of: surfactant, solvent and additives. I made one box with only solvent and one box with only additives and equilibrated them little separable for better placing into the box, and then made one box with surfactant and then placed box of solvent and