Re: [gmx-users] Normal Mode Analysis -- Expected Output

2013-04-12 Thread Bryan Roessler
My problem was here: >nsteps = 10 which should read nsteps = 1 I was under the assumption that the step numbers would correspond to the number of calculated eigenvectors. All eigenvectors are calculated in step 1. Thanks, Bryan On Thu, Apr 11, 2013 at 12:33 PM, David van der Spoel wrote

Re: [gmx-users] switching and shifting in GMX 4.6 on GPUs

2013-04-12 Thread Jesper Sørensen
Hi Berk and others, Sorry it has been a long time since this issue was posted, but I got side-tracked from this issue with other projects. And I want to make sure I understand this correctly before venturing into more simulations. So this gets a little long winded, but I hope you will help me f

Re: [gmx-users] Re: thermal conductivity,specific heat,enthalpy

2013-04-12 Thread David van der Spoel
On 2013-04-11 22:20, Ahmet yıldırım wrote: could anybody help me please? Check http://pubs.acs.org/doi/abs/10.1021/ct200731v 2013/4/11 Ahmet yıldırım Dear users, I calculated diffusion constant of a substance using g_msd tool. I also want to calculate thermal conductivity its. By the way

Re: [gmx-users] Simulation of the HEM-containing proteins

2013-04-12 Thread James Starlight
also I found such parameters in the native charm format (.prm) could you provide me with some script for conversion of tpr to itp? I could do such topology for cytochrome and add it to the contribution :) James 2013/4/12 James Starlight > I forgot to point out that when I made topology for cyt

Re: [gmx-users] Re: cygwin_mpi_gmx installation

2013-04-12 Thread Szilárd Páll
On Fri, Apr 12, 2013 at 3:45 PM, 라지브간디 wrote: > Thanks for your answers. I have uninstalled the mpi, have also reinstalled > the CUDA and got the same issue. As you have mentioned before I noticed that > it struggle to detect the CUDA. Do you mean that you reconfigured without MPI and with CUDA

Re: [gmx-users] install gromacs 4.6.1 on 64bit Windows 7 cygwin

2013-04-12 Thread Mark Abraham
On Fri, Apr 12, 2013 at 5:53 PM, Hua Lu wrote: > Hi! > I got the following error message while compiling gromacs using a complete > installation of Cygwin on 64bit windows 7. Any idea what the problem is? > Yes, you can't read those files. We can't know why. You wrote them as a different user, o

Re: [gmx-users] Dihedral angle PCA

2013-04-12 Thread baptista
On Fri, 12 Apr 2013, Thomas Evangelidis wrote: On 12 April 2013 07:51, anu chandra wrote: Hi David, Thanks for the reply. I have not tried yet. Since I didn’t find query about the dihedral PCA in the mail list, I thought of confirm about the steps mentioned in the web site. Regarding the u

[gmx-users] install gromacs 4.6.1 on 64bit Windows 7 cygwin

2013-04-12 Thread Hua Lu
Hi! I got the following error message while compiling gromacs using a complete installation of Cygwin on 64bit windows 7. Any idea what the problem is? This is what I have used to install as detailed on the gromacs website: cd gromacs-4.6.1 mkdir build cd build, cmake .. -DGMX_BUILD_OWN_FFTW=ON m

[gmx-users] Re: cygwin_mpi_gmx installation

2013-04-12 Thread 라지브간디
Thanks for your answers. I have uninstalled the mpi, have also reinstalled the CUDA and got the same issue. As you have mentioned before I noticed that it struggle to detect the CUDA. Can cygwin recognize the CUDA installed in win 7? if so, how do i link them ? The default installation path o

[gmx-users] lysine side chain shrinking

2013-04-12 Thread tarak karmakar
Dear All, During a simulation of a protein with a ligand, I see the -NH3 of the lysine side chain near the ligand is getting squeezed for a very short time; N-H bonds are getting contracted and the angle are no longer within tetrahedral normal http://lists.gromacs.org/pipermail/gmx-users/2010-Nov

[gmx-users] Fwd: [Fwd: QM MM modification]

2013-04-12 Thread Mark Abraham
Hi Natalia, I am not aware whether the QM/MM implementation in GROMACS works in 4.6, nor with which Gaussian version was intended to work in the past. Perhaps Gerrit Groenhof or someone on gmx-users can update us here? I'm not sure what "diff file" you are seeking, either. Can you elaborate pleas

Re: [gmx-users] pbc problem

2013-04-12 Thread Justin Lemkul
On Fri, Apr 12, 2013 at 7:48 AM, Kieu Thu Nguyen wrote: > Dear All, > > I made a POPC bilayer and carried out embedding a protein into this > membrane. But the fatal error has appeared : > Fatal error: > Something is wrong with your membrane. Max and min z values are 12.342000 > and 0.016000. Mayb

Re: [gmx-users] Simulation of the HEM-containing proteins

2013-04-12 Thread James Starlight
I forgot to point out that when I made topology for cytochrome-HEME complex ( assuming one cysteine covalently bonded to the FE ) again I've forced with the lack of charmm parameters for such cysteine-HEME interactions ( I've only found it for His coordinating bond). ERROR 1 [file topol.top, line

[gmx-users] pbc problem

2013-04-12 Thread Kieu Thu Nguyen
Dear All, I made a POPC bilayer and carried out embedding a protein into this membrane. But the fatal error has appeared : Fatal error: Something is wrong with your membrane. Max and min z values are 12.342000 and 0.016000. Maybe your membrane is not centered in the box, but located at the box edg

Re: [gmx-users] Dihedral angle PCA

2013-04-12 Thread Thomas Evangelidis
> > > dPCA is > > preferred in cases of peptides or intrinsically disordered proteins. > > > > And even then a disordered mess can still be a disordered mess... > > Very true! -- == Thomas Evangelidis PhD student University o

Re: [gmx-users] Dihedral angle PCA

2013-04-12 Thread Mark Abraham
On Fri, Apr 12, 2013 at 11:28 AM, Thomas Evangelidis wrote: > On 12 April 2013 07:51, anu chandra wrote: > > > Hi David, > > > > Thanks for the reply. I have not tried yet. Since I didn’t find query > about > > the dihedral PCA in the mail list, I thought of confirm about the steps > > mentioned

Re: [gmx-users] cygwin_mpi_gmx installation

2013-04-12 Thread Szilárd Páll
Indeed it's strange. In fact, it seems that CUDA detection did not even run, there should be a message whether it found the toolkit or not just before the "Enabling native GPU acceleration" - and the enabling should not even happen without CUDA detected. Unrelated, but do you really need MPI with

Re: [gmx-users] cygwin_mpi_gmx installation

2013-04-12 Thread Mark Abraham
That looks really strange. CMake claims to detect CUDA but the right variables are not set. 1) Can you reproduce this in a clean build directory? 2) If so, what CUDA is present? Mark On Thu, Apr 11, 2013 at 2:57 PM, 라지브간디 wrote: > Dear gmx, > > > I have installed mpich for MPI use in cygwin (

[gmx-users] Re: Is it possible to pull 2 different groups with respect to a third group as reference?

2013-04-12 Thread Thomas Schlesier
Yes, from 4.5.x manual: pull_ngroups: (1) The number of pull groups, not including the reference group. [...] Just set 'pull_ngroups = 2' and then make entries for pull_group1 -> pull_vec1 ... pull_group2 -> pull_vec2 ... and so on... greetings thomas Am 12.04.2013 12:00, schrieb gmx-users-req

Re: [gmx-users] Dihedral angle PCA

2013-04-12 Thread Thomas Evangelidis
On 12 April 2013 07:51, anu chandra wrote: > Hi David, > > Thanks for the reply. I have not tried yet. Since I didn’t find query about > the dihedral PCA in the mail list, I thought of confirm about the steps > mentioned in the web site. > > > Regarding the use of dihedral PCA, the protein with w

Re: [gmx-users] Simulation of the HEM-containing proteins

2013-04-12 Thread James Starlight
by the way also I've tried to make model of cytochrome p450 in charmm. In that case heme have only one coordinate bond with the side chain of cysteine (not 2 covalent bonds with cysteines as in the cytochrome-C). So as I understand I should include model of heme as the diffusion ligand ( as the sep