[gmx-users] VMD visualization of clusters

2018-11-19 Thread Rahma Dahmani
Hi GMX users,

After visualization of one of my clusters generated by g-cluster command in
gromacs , i couldn't change the representation type in VMD from lines to
new cartoon or secondary structure
so i am wondering if this is related to the structure of cluster ? ... why
i can visualize the cluster only in lines ?

Thank you!

-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] how to keep the ligand inside water box

2018-11-14 Thread Rahma Dahmani
Hi GMX users,

After running nvt equilibration, my ligand get out the box and before
proceeding to npt equilibration i want to know how to get (and keep if is
it possible) the ligand in water box* center* ?

Thank you !

-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] Subject: Re: Group WAT referenced in the .mdp file was not found in the index file

2018-11-12 Thread Rahma Dahmani
Hi Justin,
Thanks for your response,
I am using a topology file constructed from amber tools ...


-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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Re: [gmx-users] gromacs.org_gmx-users Digest, Vol 175, Issue 40

2018-11-12 Thread Rahma Dahmani
o we can't say.
>
> Let solvate and genion do the work for you. Use the -p flag to have
> those programs update your topology for you, especially if you are not
> familiar with their contents or how to edit them. See e.g.
> http://www.mdtutorials.com/gmx/lysozyme/index.html
>
> -Justin
>
> --
> ==
>
> Justin A. Lemkul, Ph.D.
> Assistant Professor
> Virginia Tech Department of Biochemistry
>
> 303 Engel Hall
> 340 West Campus Dr.
> Blacksburg, VA 24061
>
> jalem...@vt.edu | (540) 231-3129
> http://www.thelemkullab.com
>
> ==
>
>
>
> --
>
> Message: 3
> Date: Tue, 13 Nov 2018 00:01:24 +
> From: Ali Khodayari 
> To: "gmx-us...@gromacs.org" 
> Subject: Re: [gmx-users] pdb2gmx fatal error
> Message-ID: 
> Content-Type: text/plain; charset="us-ascii"
>
> Dear Justin,
>
> Thank you for your full explanation. That made it all clear now.
>
> Kind regards,
> Ali
>
> > On 13 Nov 2018, at 00:57, Justin Lemkul  wrote:
> >
> >
> >
> > On 11/8/18 1:37 PM, Ali Khodayari wrote:
> >> Dear Justin,
> >>
> >> Thank you for your response. Yet, I have not been able to solve the
> problem.
> >>
> >> The structure looks fine but gromacs is complaining about a dangling
> atom at
> >> one of the terminal ends, if I choose no terminal to be added. While,
> >
> > You can't "see" a dangling bond by visualizing the structure. That term
> refers exclusively to an incomplete terminus in terms of the *topology*
> that is being generated for the system. Maybe atoms are missing or an
> inappropriate terminal patch is being applied; either would generate that
> error. But again I emphasize the fact that a chain of glucose has first and
> last residues that are structurally and topologically different from
> internal, linked monomers. It's basic chemistry.
> >
> > 
> >
> >> ATOM 27  O3  GLC02  3.909   5.661   5.002  1.00  0.04
> >> O
> >> ATOM 28  HO4 GLC02  4.850   3.729  10.263  1.00  0.00
> >> H
> >> ATOM 29  O1  GLC01  3.396   2.685   4.467  1.00  0.04
> >> O
> >
> > Here's your problem - your residue numbers alternate back and forth
> between 1 and 2. pdb2gmx ignores these and uses its own numbering,
> incrementing the internal counter whenever the residue number changes. So
> to pdb2gmx, your input file is full of incomplete residues.
> >
> >> ATOM 30  O5  GLC02  4.225   2.770   8.173  1.00  0.04
> >> O
> >> ATOM 31  O6  GLC02  3.558   0.309   5.328  1.00  0.04
> >> O
> >> ATOM 32  H1  GLC02  2.572   4.115   8.609  1.00  0.00
> >> H
> >> ATOM 33  H2  GLC02  5.244   5.151   7.307  1.00  0.00
> >> H
> >> ATOM 34  H3  GLC02  2.361   4.651   6.153  1.00  0.00
> >> H
> >> ATOM 35  H4  GLC02  5.141   3.258   5.636  1.00  0.00
> >> H
> >> ATOM 36  H5  GLC02  2.480   2.262   6.979  1.00  0.00
> >> H
> >> ATOM 37  H61 GLC02  3.879   0.196   7.468  1.00  0.00
> >> H
> >> ATOM 38  H62 GLC02  5.286   0.920   6.494  1.00  0.00
> >> H
> >> ATOM 39  HO2 GLC02  2.496   6.480   7.836  1.00  0.00
> >> H
> >> ATOM 40  HO3 GLC02  5.015   5.674   4.919  1.00  0.00
> >> H
> >> ATOM 41  HO6 GLC02  2.453   0.270   5.418  1.00  0.00
> >> H
> >> ATOM 42  O3  GLC01  3.852   1.653  -0.348  1.00  0.00
> >> O
> >
> > As above, now you're again going back and forth between 1 and 2, so
> pdb2gmx sees a new residue, which is not correct.
> >
> > -Justin
> >
> > --
> > ==
> >
> > Justin A. Lemkul, Ph.D.
> > Assistant Professor
> > Virginia Tech Department of Biochemistry
> >
> > 303 Engel Hall
> > 340 West Campus Dr.
> > Blacksburg, VA 24061
> >
> > jalem...@vt.edu | (540) 231-3129
> > http://www.thelemkullab.com
> >
> > ==
> >
> > --
> > Gromacs Users mailing list
> >
> > * Please search the archive at
> http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before
> posting!
> >
> > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
> >
> > * For (un)subscribe request

[gmx-users] Group WAT referenced in the .mdp file was not found in the index file

2018-11-12 Thread Rahma Dahmani
Hi GMX users,

i double checked in my topology and gro files that i am using the same
moleculetype ( LIG and WAT) but when i run grompp for T equilibration i get
an error message """" Group WAT referenced in the .mdp file was not found
in the index file """"
PS: i am not using an index file  and i modified tc-grps, in nvt.mdp file ,
to :
tc-grps = LIG WAT .


Thank you !

Best Regards

-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] Error in running energy minimization

2018-11-09 Thread Rahma Dahmani
Hi GMX users,

I am running energy minimization for my ligand in water box ,
I have manually constructed a topology file for my ligand (with antechamber
tools) and i introduced all the necessary atomtypes, even for water
molecules ( i created *itp file*, named water.itp,  where i include the
defintions of  water atom types and all their necessary parameters like in
tip3p.itp water model in amber ) but unfortunately when i used 'grompp'
command to run energy minimization it* didn't recognize OW atom type , *when
i replaced atom-Type, inside itp file, by *oh *which is not correct to
describe water oxygen atoms but it worked for energy minimization and *the
job run normally* which is weird since in amber atom type OW (water) is
different from OH (hydroxyl) atomtype.

please find enclosed my water.itp file with modified water atomtype (oh,
ho, ho), where i used amber water parameters for tip3p model.

and my questions are *:* why 'grompp' didin't recognize OW atomtype even if
i already included all the necessary definitions of atomtypes ? and Is it
OK to use hydroxyl atomtype to describe water atoms ?

Can you help me please,
Thank you !
-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] Topology include file "tip3p.itp" not found

2018-11-08 Thread Rahma Dahmani
Dear Gromacs Users,

I want to run MD simulation of ligand in water box , for that i have
manually constructed a topology file of my ligand with antechamber tools
then i used GROMACS instructions to build a box of water molecules
(ligand_solv.gro), when i tried to minimize my structure (with grompp) i
get this error
""" *atomtype OW is not found* """"
then i create manually tip3p.itp file (which contains tip3p parameters) to
identify the water atom types and i added in my topology file the following
commands:
; Include water topology
#include "tip3p.itp"
But i always get this error
Topology include file "tip3p.itp" not found

Can you help me please,
Thank you !


-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] atomtype OW is not found

2018-11-07 Thread Rahma Dahmani
Hi Gromacs users,
I used antechamber tools to genrate a topology and coordinates files for my
ligand, then i used acpype to convert them to gromacs files (.top and
.gro), then *i added manually water FF in topology file* since i want to
run MD simulation of ligand in water 
I double checked the notation of water molecule (OW and HW) in gro file
but i always get this error  """ *atomtype OW is not found* """"
here I copy paste a part of my topology file where i include water FF

; Include water topology
#include "amber99sb-ildn.ff/tip3p.itp"
#ifdef POSRES_WATER
; Position restraint for each water oxygen
[ position_restraints ]
;  i funct   fcxfcyfcz
   11   1000   1000   1000
#endif

Can anyone help me please,
Thank you

-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] Newton Raphson Method

2018-10-30 Thread Rahma Dahmani
Hi,
Is it possible to use Newton Raphson Method for energy minimization in
gromacs ?
and what keyword to use as integrator inside the minim.mdp file  ?

Thank you



-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] missing atoms in residues

2018-10-24 Thread Rahma Dahmani
Hi everyone,
I have one question: Is it possible to add missing atoms in residues using
gromacs ? ( PS. i already tried pdb2gmx but it didn't work out)
missing atoms are :
GLU A  117CB   CG   CD   OE1  OE2
PRO A  158CB   CG   CD

Thank you!
-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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Re: [gmx-users] gromacs.org_gmx-users Digest, Vol 170, Issue 39

2018-06-11 Thread Rahma Dahmani
sorry, i am new Gromacs user, where i can find the warning text ?

2018-06-11 11:00 GMT+01:00 <
gromacs.org_gmx-users-requ...@maillist.sys.kth.se>:

> Send gromacs.org_gmx-users mailing list submissions to
> gromacs.org_gmx-users@maillist.sys.kth.se
>
> To subscribe or unsubscribe via the World Wide Web, visit
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> or, via email, send a message with subject or body 'help' to
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>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of gromacs.org_gmx-users digest..."
>
>
> Today's Topics:
>
>1. Hexagonal Phase modelling (Anjana Jayasinghe)
>2. Re: Hexagonal Phase modelling (David van der Spoel)
>3. Problem in generation of tpr file (Rahma Dahmani)
>4. Re: Problem in generation of tpr file (Alex)
>5. Doubts in combination rules 2 and 3 (Apramita Chand)
>
>
> --
>
> Message: 1
> Date: Sun, 10 Jun 2018 13:51:58 + (UTC)
> From: Anjana Jayasinghe 
> To: Discussion List for GROMACS Users 
> Subject: [gmx-users] Hexagonal Phase modelling
> Message-ID: <1474481440.2702954.1528638718...@mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
> Dear Gromacs users,
> I want to model a hexagonal phase and do? MD simulations using gromacs.
> Could you please guide me to model a hexagoanl phase for my CiEj molecules?
> Thank you.
>
> --
>
> Message: 2
> Date: Sun, 10 Jun 2018 17:21:39 +0200
> From: David van der Spoel 
> To: gmx-us...@gromacs.org
> Subject: Re: [gmx-users] Hexagonal Phase modelling
> Message-ID: <158d03e2-8fa4-b8ff-1d42-cf23b26bc...@xray.bmc.uu.se>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Den 2018-06-10 kl. 15:51, skrev Anjana Jayasinghe:
> > Dear Gromacs users,
> > I want to model a hexagonal phase and do? MD simulations using gromacs.
> Could you please guide me to model a hexagoanl phase for my CiEj molecules?
> > Thank you.
> >
> You can simulate any kind of periodicity that can be descirbed by a
> triclinic box, that probably includes your data. Just give gromacs a
> correct pdb file with CRYST1 entry.
>
> --
> David van der Spoel, Ph.D., Professor of Biology
> Head of Department, Cell & Molecular Biology, Uppsala University.
> Box 596, SE-75124 Uppsala, Sweden. Phone: +46184714205.
> http://www.icm.uu.se
>
>
> --
>
> Message: 3
> Date: Mon, 11 Jun 2018 09:48:51 +0100
> From: Rahma Dahmani 
> To: gromacs.org_gmx-users@maillist.sys.kth.se
> Subject: [gmx-users] Problem in generation of tpr file
> Message-ID:
>  a...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Hi gmx users,
>
> I am performing Molecular Dynamic simulations of protein-ligand complex by
> following steps shown in "GROMACS Tutorials.  While moving on to
> production MD,
> i coudn't generate the tpr file, in fact i only activated velocity
> generation parameter in my md.mdp file, and it shows this error:
>
> Program grompp, VERSION 4.5.7
> Source code file:
> /home/rahma/Bureau/CODE/GROMACS/gromacs-4.5.7/src/kernel/grompp.c, line:
> 1611
> Fatal error:
> Too many warnings (1), grompp terminated.
> If you are sure all warnings are harmless, use the -maxwarn option.
> For more information and tips for troubleshooting, please check the GROMACS
> website at http://www.gromacs.org/Documentation/Errors
>
> when velocity generation was off i didn't get this error.
>
> can anyone help me please
>
> Thank you!
>
>
>
> --
>
>
>
>
>
>
> *Rahma Dahmani Doctorante en CHIMIE Unit? de Recherche: Physico-Chimie des
> Mat?riaux ? l'?tat condens?, Laboratoire de Chimie Th?orique et
> Spectroscopie Mol?culaireUniversit? de Tunis El Manar, Facult? des Sciences
> de Tunis Campus Universitaire Farhat Hached - BP n ? 94 - Rommana 1068,
> Tunisie T?l: (+216) 28151042*
>
>
> --
>
> Message: 4
> Date: Mon, 11 Jun 2018 02:53:50 -0600
> From: Alex 
> To: gmx-us...@gromacs.org
> Subject: Re: [gmx-users] Problem in generation of tpr file
> Message-ID: 
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Grompp tells you exactly what to do:
>
> "Fatal error:
> Too many warnings (1), grompp terminated.
> If you are sure all warnings are harmless, use the -maxwarn option.
> For more informat

[gmx-users] Problem in generation of tpr file

2018-06-11 Thread Rahma Dahmani
Hi gmx users,

I am performing Molecular Dynamic simulations of protein-ligand complex by
following steps shown in "GROMACS Tutorials.  While moving on to production MD,
i coudn't generate the tpr file, in fact i only activated velocity
generation parameter in my md.mdp file, and it shows this error:

Program grompp, VERSION 4.5.7
Source code file:
/home/rahma/Bureau/CODE/GROMACS/gromacs-4.5.7/src/kernel/grompp.c, line:
1611
Fatal error:
Too many warnings (1), grompp terminated.
If you are sure all warnings are harmless, use the -maxwarn option.
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors

when velocity generation was off i didn't get this error.

can anyone help me please

Thank you!



-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] gromacs error

2017-10-16 Thread Rahma Dahmani
Hi,
How can i rectify the following GROMACS error?
Fatal error:
atom HN2 in residue LYS2 was not found in rtp enetry NYLS with 24 atoms
while sorting atoms.

Thank you for your help
-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] How to extend the protein simulation in Gromacs from 1 ns to 150 ns?

2017-10-12 Thread Rahma Dahmani
Hi,
i am a beginner with Gromacs and i have run the simulation using Gromacs
forcefield for 1000 ps* (1ns)* . Now I want to extend it to *150 ns*. How
should I proceed?
should i change the md.mdp file ?? actually i am using the defaul mdp file
in gromacs tutorial :
integrator  = md; leap-frog integrator
nsteps  = 50; 2 * 50 = 1000 ps, 1 ns
dt = 0.002   ; 2 f

so what should i change exactly??
can anyone help me please,

Thank you
-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
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[gmx-users] problem on Gromacs 4.5.7 installation

2017-07-30 Thread Rahma Dahmani
Dear gmx-users,
I am trying to install Gromacs 4.5.7 and i choose to run it with cmake
3.9.0 and fftw 3.3.6
i succeeded to install cmake files but i have a problem with fftw
installtion: its a 'make install' problem:

make[3]: *** [install-includeHEADERS] Erreur 1
make[3]: quittant le répertoire «
/home/rahma/Bureau/simulation_dynamique/fftw-3.3.6-pl2/api
»
make[2]: *** [install-am] Erreur 2
make[2]: quittant le répertoire «
/home/rahma/Bureau/simulation_dynamique/fftw-3.3.6-pl2/api
»
make[1]: *** [install] Erreur 2
make[1]: quittant le répertoire «
/home/rahma/Bureau/simulation_dynamique/fftw-3.3.6-pl2/api
»
make: *** [install-recursive] Erreur 1

I am wondering if there is a special version of fftw to run it with gromacs
4.5.7 ?

Thank you


-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
-- 
Gromacs Users mailing list

* Please search the archive at 
http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting!

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mail to gmx-users-requ...@gromacs.org.

[gmx-users] problem on Gromacs 4.5.7 installation

2017-07-29 Thread Rahma Dahmani
Hi,
I'am a phd student, i need to work with gromacs version 4.57 but i have an
installation problem, i apply all the instructions of installation but i
have always the 'make install' problem. I really need to work with gromacs
(4.5.7) for my work

Best regards

-- 






*Rahma Dahmani Doctorante en CHIMIE Unité de Recherche: Physico-Chimie des
Matériaux à l'état condensé, Laboratoire de Chimie Théorique et
Spectroscopie MoléculaireUniversité de Tunis El Manar, Faculté des Sciences
de Tunis Campus Universitaire Farhat Hached - BP n ° 94 - Rommana 1068,
Tunisie Tél: (+216) 28151042*
-- 
Gromacs Users mailing list

* Please search the archive at 
http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting!

* Can't post? Read http://www.gromacs.org/Support/Mailing_Lists

* For (un)subscribe requests visit
https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a 
mail to gmx-users-requ...@gromacs.org.