[gmx-users] Re: grompp error message

Luciano ltcosta at universiabrasil.net
Thu Nov 20 21:12:01 CET 2003



 Hi Jodi,

 I think that you have check your *.gro and *.top file and to see the
Na+ type. It shouldn't are set correctly.

 Cheers,

 Luciano
######################################################
               Luciano Tavares da Costa
             Mestre em Engenharia Química
   icq #232852036 ; ltcosta at universiabrasil.net  
    Doutorando Laboratório de Biofisicoquímica
              Instituto de Química - USP
             
######################################################

----- Mensagem Original -----
De: gmx-users-request at gromacs.org
Data: Quinta, 20 de Novembro de 2003 1:27 pm
Assunto: gmx-users digest, Vol 1 #1098 - 9 msgs

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> 
> Today's Topics:
> 
>   1. (no subject) (Luca Mollica)
>   2. Re: Could gromacs process RNA? (Luca Mollica)
>   3. Amino terminus atom types (Lieven Buts)
>   4. grompp error message (Jodi Fangman)
>   5. Re: Amino terminus atom types (David van der Spoel)
>   6. RE: LJ-14 default..... (Henrik Rundgren)
>   7. g_rms g_dipole (parinald at unsl.edu.ar)
>   8. Performance (ehab at biof.ufrj.br)
>   9. Re: Performance (Ran Friedman)
> 
> --__--__--
> 
> Message: 1
> Date: Thu, 20 Nov 2003 11:35:38 +0100
> From: Luca Mollica <mollica.luca at hsr.it>
> To:  gmx-users at gromacs.org
> Subject: [gmx-users] (no subject)
> Reply-To: gmx-users at gromacs.org
> 
> > Message: 8
> > From: "wang chuanming" <chuanmingwang at hotmail.com>
> > To: gmx-users at gromacs.org
> > Date: Thu, 20 Nov 2003 16:47:05 +0800
> > Subject: [gmx-users] Could gromacs process RNA?
> > Reply-To: gmx-users at gromacs.org
> > 
> > Dear all,
> > I have noticed that most works using gromacs were related to 
> proteins or 
> > lipids. Are there anyone use it for research on RNA? There are 
> very few 
> > building block in the ff***.rtp or  .itp files, I think. Maybe 
> users must 
> > set up their block and it is difficult for me. 
> 
> Dear Wang,
> 
> I'm not an expert using GROMACS for nucleic acids simulation, 
> because 
> I'm interested in proteins and lipids, like most of the 
> users....but, a 
> general rule that must be adopted in analysing a new problem in 
> GROMACS, 
> according to my opinion and experience, is that the user must build 
> a 
> new topology for every molecule except protein that he/she will 
> have to 
> use in the simulation. Also lipids are not by default included in 
> GROMACS, but other users have built FF including parameters for 
> lipids, 
> and topologies .itp files as well.
> This site could be very helpful, please try to use it, and you will 
> discover some insights in creating topologies:
> 
> http://davapc1.bioch.dundee.ac.uk/prodrg/
> 
> The Dundee PRODRG server is a free server that builds topologies 
> for 
> molecules provided by the user.
> But also search for advices in the whole mailing list and 
> topologies and 
> force fields all over the web.
> 
> 
> And MD of RNA usually needs
> > to add ion in the SOL, how can I do it?
> 
> It depends on HOW MANY ions do you need: e.g., if your system has a 
> global charge of +3, you will have to replace 3 molecules of 
> solvent 
> with three Cl(-) ions. In this case, you will add in your topology 
> file 
> the line
> 
> #include"ions.itp"
> 
> and the final part of topology file
> 
> [ molecules ]
> ; Compound        #mols
> Protein          1
> SOL             1200
> 
> will become as follows:
> 
> [ molecules ]
> ; Compound        #mols
> Protein          1
> SOL             1197
> CL               3
> 
> 
> 
> Good luck, and enjoy MD!
> 
> L
> 
> 
> 
> > Expecting your reply
> > Thanks in advance!
> > 
> 
> 
> 
> --__--__--
> 
> Message: 2
> Date: Thu, 20 Nov 2003 11:37:24 +0100
> From: Luca Mollica <mollica.luca at hsr.it>
> To: GROMACS mailing list <gmx-users at gromacs.org>
> Subject: Re: [gmx-users] Could gromacs process RNA?
> Reply-To: gmx-users at gromacs.org
> 
> > Message: 8
> > From: "wang chuanming" <chuanmingwang at hotmail.com>
> > To: gmx-users at gromacs.org
> > Date: Thu, 20 Nov 2003 16:47:05 +0800
> > Subject: [gmx-users] Could gromacs process RNA?
> > Reply-To: gmx-users at gromacs.org
> >
> > Dear all,
> > I have noticed that most works using gromacs were related to 
> proteins 
> > or lipids. Are there anyone use it for research on RNA? There 
> are 
> very > few building block in the ff***.rtp or  .itp files, I think. 
> Maybe > users must set up their block and it is difficult for me.
> 
> 
> Dear Wang,
> 
> I'm not an expert using GROMACS for nucleic acids simulation, 
> because 
> I'm interested in proteins and lipids, like most of the 
> users....but, a 
> general rule that must be adopted in analysing a new problem in 
> GROMACS, 
> according to my opinion and experience, is that the user must build 
> a 
> new topology for every molecule except protein that he/she will 
> have to 
> use in the simulation. Also lipids are not by default included in 
> GROMACS, but other users have built FF including parameters for 
> lipids, 
> and topologies .itp files as well.
> This site could be very helpful, please try to use it, and you will 
> discover some insights in creating topologies:
> 
> http://davapc1.bioch.dundee.ac.uk/prodrg/
> 
> The Dundee PRODRG server is a free server that builds topologies 
> for 
> molecules provided by the user.
> But also search for advices in the whole mailing list and 
> topologies and 
> force fields all over the web.
> 
> 
> > And MD of RNA usually needs
> > to add ion in the SOL, how can I do it?
> 
> 
> It depends on HOW MANY ions do you need: e.g., if your system has a 
> global charge of +3, you will have to replace 3 molecules of 
> solvent 
> with three Cl(-) ions. In this case, you will add in your topology 
> file 
> the line
> 
> #include"ions.itp"
> 
> and the final part of topology file
> 
> [ molecules ]
> ; Compound        #mols
> Protein          1
> SOL             1200
> 
> will become as follows:
> 
> [ molecules ]
> ; Compound        #mols
> Protein          1
> SOL             1197
> CL               3
> 
> 
> 
> Good luck, and enjoy MD!
> 
> L
> 
> 
> 
> > Expecting your reply
> > Thanks in advance!
> >
> 
> 
> 
>
*******************************************************************************************************
> 
> Luca Mollica
> Dulbecco Telethon Institute (Protein Structure Laboratory)
> 
> DIBIT-HSR,Via Olgettina 58
> 20132 Milano (Italy)
> 
> Tel: 0039-02-26434824
> Fax: 0039-02-26434813
> E-mail: mollica.luca at hsr.it
> 
> DTI website: http://www.telethon.it/dti/
> 
> 
> --__--__--
> 
> Message: 3
> From: Lieven Buts <lieven at ultr.vub.ac.be>
> Organization: Vrije Universiteit Brussel - ULTR
> To: gmx-users at gromacs.org
> Date: Thu, 20 Nov 2003 13:55:07 +0100
> Subject: [gmx-users] Amino terminus atom types
> Reply-To: gmx-users at gromacs.org
> 
> I am trying a simple simulation of a protein in water using the 
> OPSL-AA force 
> field in Gromacs 3.1.4. The N terminus looks like this in the 
> topology file:
> 
> ----------------------------
> ; Include forcefield parameters
> #include "ffoplsaa.itp"
> 
> [ moleculetype ]
> ; Name            nrexcl
> Protein_B           3
> 
> [ atoms ]
> ;   nr       type  resnr residue  atom   cgnr     charge       mass 
> typeB    
> chargeB      massB
>     1       MNH3      1    GLN    MN1      1          0    8.51535 
>     2       MNH3      1    GLN    MN2      1          0    8.51535 
>     3   opls_287      1    GLN      N      1       -0.3          0 
>     4   opls_290      1    GLN     H1      1       0.33          0 
>  
>     5   opls_290      1    GLN     H2      1       0.33          0 
>  
>     6   opls_290      1    GLN     H3      1       0.33          0 
>  
>     7  opls_293B      1    GLN     CA      2       0.25     13.019 
>  
> ...
> ----------------------------
> 
> Energy minimization works fine, but when I start a position-
> restrained run, I 
> get these LINCS warnings:
> 
> ----------------------------
> Step 7, time 0.014 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.000000 (between atoms 1 and 2) rms nan
> bonds that rotated more than 30 degrees:
> atom 1 atom 2  angle  previous, current, constraint length
> ----------------------------
> 
> at every step.
> 
> Is this a problem?
> 
> 
> 
> Cheers,
> 
> -- 
> Lieven Buts
> Department of Ultrastructure
> Vrije Universiteit Brussel
> 
> 
> --__--__--
> 
> Message: 4
> Date: Thu, 20 Nov 2003 07:20:02 -0600
> From: Jodi Fangman <jodi-fangman at uiowa.edu>
> To: gmx-users at gromacs.org
> Subject: [gmx-users] grompp error message
> Reply-To: gmx-users at gromacs.org
> 
> David 
> Here is the full grompp output including the error.
> Jodi
> 
> grompp -v -f em -c salt -o salt_em -p 1ubq
> 
> creating statusfile for 1 node...
> 
> Back Off! I just backed up mdout.mdp to ./#mdout.mdp.5#
> Warning: as of GMX v 2.0 unit of compressibility is truly 1/bar
> checking input for internal consistency...
> calling /usr/bin/cpp...
> processing topology...
> Generated 241860 of the 241860 non-bonded parameter combinations
> Generating 1-4 interactions: fudge = 0.5
> Generated 241860 of the 241860 1-4 parameter combinations
> Excluding 3 bonded neighbours for Protein             1
> Excluding 2 bonded neighbours for SOL              4513
> Cleaning up temporary file grompp000318
> Fatal error: No such moleculetype NA+
> 
> 
> --__--__--
> 
> Message: 5
> Subject: Re: [gmx-users] Amino terminus atom types
> From: David van der Spoel <spoel at xray.bmc.uu.se>
> To: gmx-users at gromacs.org
> Organization: 
> Date: 20 Nov 2003 14:26:41 +0100
> Reply-To: gmx-users at gromacs.org
> 
> On Thu, 2003-11-20 at 13:55, Lieven Buts wrote:
> > I am trying a simple simulation of a protein in water using the 
> OPSL-AA force 
> > field in Gromacs 3.1.4. The N terminus looks like this in the 
> topology file:
> > 
> > ----------------------------
> > ; Include forcefield parameters
> > #include "ffoplsaa.itp"
> > 
> > [ moleculetype ]
> > ; Name            nrexcl
> > Protein_B           3
> > 
> > [ atoms ]
> > ;   nr       type  resnr residue  atom   cgnr     charge       
> mass  typeB    
> > chargeB      massB
> >      1       MNH3      1    GLN    MN1      1          0    
> 8.51535 
> >      2       MNH3      1    GLN    MN2      1          0    
> 8.51535 
> >      3   opls_287      1    GLN      N      1       -0.3          
> 0 
> >      4   opls_290      1    GLN     H1      1       0.33          
> 0   
> >      5   opls_290      1    GLN     H2      1       0.33          
> 0   
> >      6   opls_290      1    GLN     H3      1       0.33          
> 0   
> >      7  opls_293B      1    GLN     CA      2       0.25     
> 13.019   
> > ...
> > ----------------------------
> > 
> > Energy minimization works fine, but when I start a position-
> restrained run, I 
> > get these LINCS warnings:
> > 
> > ----------------------------
> > Step 7, time 0.014 (ps)  LINCS WARNING
> > relative constraint deviation after LINCS:
> > max 0.000000 (between atoms 1 and 2) rms nan
> > bonds that rotated more than 30 degrees:
> >  atom 1 atom 2  angle  previous, current, constraint length
> > ----------------------------
> > 
> > at every step.
> > 
> > Is this a problem?
> yes,
> 
> I'm working on it.
> 
> > 
> > 
> > 
> > Cheers,
> -- 
> David.
> ________________________________________________________________________
> David van der Spoel, PhD, Assist. Prof., Molecular Biophysics group,
> Dept. of Cell and Molecular Biology, Uppsala University.
> Husargatan 3, Box 596,  	75124 Uppsala, Sweden
> phone:	46 18 471 4205		fax: 46 18 511 755
> spoel at xray.bmc.uu.se	spoel at gromacs.org   http://xray.bmc.uu.se/~spoel
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 
> 
> --__--__--
> 
> Message: 6
> Date: Thu, 20 Nov 2003 14:39:32 +0100
> From: Henrik Rundgren <henrik at physc.su.se>
> To: gmx-users at gromacs.org
> Subject: [gmx-users] RE: LJ-14 default.....
> Reply-To: gmx-users at gromacs.org
> 
> This is a multi-part message in MIME format.
> --------------090404090709020205060702
> Content-Type: text/plain; charset=us-ascii; format=flowed
> Content-Transfer-Encoding: 7bit
> 
> -- __--__--  Message: 7 Subject: Re: [gmx-users] Help: No default 
> LJ-14... 
> From: David van der Spoel <spoel at xray.bmc.uu.se> To: 
> gmx-users at gromacs.org Organization: Date: 20 Nov 2003 09:07:41 
> +0100 
> Reply-To: gmx-users at gromacs.org On Thu, 2003-11-20 at 09:00, Henrik 
> Rundgren wrote:
> 
> >> hello all.
> >> I have a problem.
> >> I have run some simulations with Gromacs, and all seems fine.
> >> No I try to run a small peptide in wter, and I get the following 
> warnings:>> 
> >>  Generated 1179 of the 1378 non-bonded parameter combinations
> >> WARNING 1 [file "top.top", line 86]:
> >>   No default LJ-14 types, using zeroes
> >> WARNING 2 [file "top.top", line 87]:
> >>   No default LJ-14 types, using zeroes
> >> WARNING 3 [file "top.top", line 88]:
> >>   No default LJ-14 types, using zeroes
> >> WARNING 4 [file "top.top", line 109]:
> >>   No default LJ-14 types, using zeroes
> >> WARNING 5 [file "top.top", line 110]:
> >>   No default LJ-14 types, using zeroes
> >> WARNING 6 [file "top.top", line 111]:
> >>   No default LJ-14 types, using zeroes
> >> Excluding 3 bonded neighbours for Protein 1
> >> Excluding 2 bonded neighbours for SOL 884
> >> 
> >> Then it continues and makes the infile .trp, but I doubt that 
> this is ok 
> >> to run an simulation on....
> >> I have checked in the topology file, and the default type value 
> is 1 
> >> (=LJ)... so I don't see where this warning is coming from.
> >> 
> >have you checked which atom pair is listed in top.top lines 86, 
> 87, 88,
> >109-111
> >
> >  
> >
> >>> thanks for the help.
> >>> sincerely,
> >>> henrik
> >>    
> >>
> > -- David. 
> > 
> ________________________________________________________________________ 
> > David van der Spoel, PhD, Assist. Prof., Molecular Biophysics 
> group, 
> > Dept. of Cell and Molecular Biology, Uppsala University. 
> Husargatan 3, 
> > Box 596, 75124 Uppsala, Sweden phone: 46 18 471 4205 fax: 46 18 
> 511 
> > 755 spoel at xray.bmc.uu.se spoel at gromacs.org 
> > http://xray.bmc.uu.se/~spoel 
> > 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>
> 
> 
> Hello,
> Yes, I have looked in it.. but I can't understand why it would want 
> to 
> use the ZN: or SI: or NA:pairs in the topology file... since I 
> haven't 
> defined any "metals" in the pdb file (it's just a basic dipeptide 
> of ALA 
> ZW-form). 
> I have missed some basics here... shouldn't the topology only 
> include 
> the atoms defined from the pdb file's?
> (I used your spc216 file for water though. but that one seems ok 
> when 
> looking at it...)
> 
> From top.top following can be read...
> 
> [ nonbond_params ]
> line   ; i j func c6 c12
> 86     O NL 1 0.23473E-02 0.34518E-05
> 87     O NR5* 1 0.23473E-02 0.20711E-05
> 88     O ZN 1 0.00000E+00 0.10931E-06
> 109   OM NR6* 1 0.23473E-02 0.33890E-05
> 110   OM SI 1 0.57734E-02 0.86722E-05
> 111   OM NA 1 0.40370E-03 0.44478E-06
> 
> thanks for input.
> henrik
> 
> -- 
> _________________________________________________________________
> Henrik Rundgren
> Division of Physical Chemistry
> Arrhenius Laboratory
> Stockholm University
> S-106 91 Stockholm
> Sweden
> 
> E-mail:    Henrik at physc.su.se
> Telephone: +46-(0)8-16 12 63
> Fax:       +46-(0)8-15 21 87
> Website:   www.fos.su.se/~henrik
> _________________________________________________________________
> 
> 
> --------------090404090709020205060702
> Content-Type: text/html; charset=us-ascii
> Content-Transfer-Encoding: 7bit
> 
> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> <html>
> <head>
>  <meta http-equiv="Content-Type" content="text/html;charset=ISO-
> 8859-1">
>  <title></title>
> </head>
> <body>
> <pre wrap=""><div class="moz-txt-sig"><div class="moz-txt-sig">-- 
> __--__-- 
> 
> Message: 7
> Subject: Re: [gmx-users] Help: No default LJ-14...
> From: David van der Spoel  
> href="mailto:spoel at xray.bmc.uu.se"><spoel at xray.bmc.uu.se&gt;To:  
> href="mailto:gmx-users at gromacs.org">gmx-users at gromacs.org
> Organization: 
> Date: 20 Nov 2003 09:07:41 +0100
> Reply-To:  href="mailto:gmx-users at gromacs.org">gmx-users at gromacs.org
> 
> On Thu, 2003-11-20 at 09:00, Henrik Rundgren wrote:
> </div></div></pre>
> <blockquote type="cite">
>  <pre wrap=""><span class="moz-txt-citetags">&gt; </span>hello all.
> <span class="moz-txt-citetags">&gt; </span>I have a problem.
> <span class="moz-txt-citetags">&gt; </span>I have run some 
> simulations with Gromacs, and all seems fine.
> <span class="moz-txt-citetags">&gt; </span>No I try to run a small 
> peptide in wter, and I get the following warnings:
> <span class="moz-txt-citetags">&gt; </span>
> <span class="moz-txt-citetags">&gt; </span> Generated 1179 of the 
> 1378 non-bonded parameter combinations
> <span class="moz-txt-citetags">&gt; </span>WARNING 1 [file 
> "top.top", line 86]:
> <span class="moz-txt-citetags">&gt; </span>  No default LJ-14 
> types, using zeroes
> <span class="moz-txt-citetags">&gt; </span>WARNING 2 [file 
> "top.top", line 87]:
> <span class="moz-txt-citetags">&gt; </span>  No default LJ-14 
> types, using zeroes
> <span class="moz-txt-citetags">&gt; </span>WARNING 3 [file 
> "top.top", line 88]:
> <span class="moz-txt-citetags">&gt; </span>  No default LJ-14 
> types, using zeroes
> <span class="moz-txt-citetags">&gt; </span>WARNING 4 [file 
> "top.top", line 109]:
> <span class="moz-txt-citetags">&gt; </span>  No default LJ-14 
> types, using zeroes
> <span class="moz-txt-citetags">&gt; </span>WARNING 5 [file 
> "top.top", line 110]:
> <span class="moz-txt-citetags">&gt; </span>  No default LJ-14 
> types, using zeroes
> <span class="moz-txt-citetags">&gt; </span>WARNING 6 [file 
> "top.top", line 111]:
> <span class="moz-txt-citetags">&gt; </span>  No default LJ-14 
> types, using zeroes
> <span class="moz-txt-citetags">&gt; </span>Excluding 3 bonded 
> neighbours for Protein 1
> <span class="moz-txt-citetags">&gt; </span>Excluding 2 bonded 
> neighbours for SOL 884
> <span class="moz-txt-citetags">&gt; </span>
> <span class="moz-txt-citetags">&gt; </span>Then it continues and 
> makes the infile .trp, but I doubt that this is ok 
> <span class="moz-txt-citetags">&gt; </span>to run an simulation on....
> <span class="moz-txt-citetags">&gt; </span>I have checked in the 
> topology file, and the default type value is 1 
> <span class="moz-txt-citetags">&gt; </span>(=LJ)... so I don't see 
> where this warning is coming from.
> <span class="moz-txt-citetags">&gt; </span><!---->
> have you checked which atom pair is listed in top.top lines 86, 87, 
> 88,109-111
> 
>  </pre>
>  <blockquote type="cite">
>    <pre wrap=""><span class="moz-txt-citetags">&gt; </span>thanks 
> for the help.
> <span class="moz-txt-citetags">&gt; </span>sincerely,
> <span class="moz-txt-citetags">&gt; </span>henrik
>    </pre>
>  </blockquote>
> <!---->
>  <div class="moz-txt-sig">-- David.
> ________________________________________________________________________
> David van der Spoel, PhD, Assist. Prof., Molecular Biophysics group,
> Dept. of Cell and Molecular Biology, Uppsala University. Husargatan 3,
> Box 596,  	75124 Uppsala, Sweden phone:	46 18 471 4205		fax: 46 18 511
> 755  href="mailto:spoel at xray.bmc.uu.se">spoel at xray.bmc.uu.se	<a
> class="moz-txt-link-abbreviated" 
> href="mailto:spoel at gromacs.org">spoel at gromacs.org <a
> class="moz-txt-link-freetext" 
> href="http://xray.bmc.uu.se/%7Espoel">"
target="l">http://xray.bmc.uu.se/~spoel
>
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
</div>
>  <pre wrap=""></pre>
> </blockquote>
> <pre wrap=""><!---->
> </pre>
> <br>
> Hello,<br>
> Yes, I have looked in it.. but I can't understand why it would want to
> use the ZN: or SI: or NA:pairs in the topology file... since I haven't
> defined any "metals" in the pdb file (it's just a basic dipeptide of
> ALA ZW-form).  <br>
> I have missed some basics here... shouldn't the topology only include
> the atoms defined from the pdb file's?<br>
> (I used your spc216 file for water though. but that one seems ok when
> looking at it...)<br>
> <br>
> From top.top following can be read...<br>
> <br>
> [ nonbond_params ]<br>
> line   ; i j func c6 c12<br>
> 86     O NL 1 0.23473E-02 0.34518E-05<br>
> 87     O NR5* 1 0.23473E-02 0.20711E-05<br>
> 88     O ZN 1 0.00000E+00 0.10931E-06<br>
> 109   OM NR6* 1 0.23473E-02 0.33890E-05<br>
> 110   OM SI 1 0.57734E-02 0.86722E-05<br>
> 111   OM NA 1 0.40370E-03 0.44478E-06<br>
> <br>
> thanks for input.<br>
> henrik<br>
> <pre class="moz-signature" cols="72">-- 
> _________________________________________________________________
> Henrik Rundgren
> Division of Physical Chemistry
> Arrhenius Laboratory
> Stockholm University
> S-106 91 Stockholm
> Sweden
> 
> E-mail:    Henrik at physc.su.se
> Telephone: +46-(0)8-16 12 63
> Fax:       +46-(0)8-15 21 87
> Website:   http://www.fos.su.se/~henrik">www.fos.su.se/~henrik
> _________________________________________________________________
> </pre>
> </body>
> </html>
> 
> --------------090404090709020205060702--
> 
> 
> --__--__--
> 
> Message: 7
> Date: Thu, 20 Nov 2003 10:42:57 -0300 (ART)
> From: <parinald at unsl.edu.ar>
> To: gmx-users at gromacs.org 
> Subject: [gmx-users] g_rms g_dipole
> Reply-To: gmx-users at gromacs.org
> 
> Hello again:
> 
> sorry, I was not expresed correctly :
> 
> The file aver.xvg (of g_dipole) contains <|M|^2/N> and <|M|>^2/N, 
> what the 
> > meaning of <|M|>^2 / <|M|^2> ? what is N?.
> 
> Thank you. I must return to the question RMSD in estructure:
> in this problem, what is reference estructure?
> is better to use g_rmsdist?( where the distance Rij between atoms 
> at time t 
> is  compared with the distance between the same atoms at time 0).
>                                                                Pablo.
> 
> 
> 
> --__--__--
> 
> Message: 8
> Date: Thu, 20 Nov 2003 14:54:38 +0000
> From: ehab at biof.ufrj.br
> To: GROMACS mailing list <gmx-users at gromacs.org>
> Subject: [gmx-users] Performance
> Reply-To: gmx-users at gromacs.org
> 
> Hi all,
> Please, somebody can tell me how is the time performance of GROMACS 
> in a 
> Origin 2000? I just need to know the system size, the time of the 
> simulation(like 1ns) and the real time it took to run (like 3 days) 
> on this machine.
> 
> Thanks in advance,
> 
> Elza
> 
> 
> *************************************
> Ludwig Institute for Cancer Research
> Computational Biology Lab
> Sao Paulo-SP - Brazil
> 
> --__--__--
> 
> Message: 9
> Date: Thu, 20 Nov 2003 17:26:24 +0200
> From: Ran Friedman <ran at hemi.tau.ac.il>
> To: gmx-users at gromacs.org
> Subject: Re: [gmx-users] Performance
> Reply-To: gmx-users at gromacs.org
> 
> 
> --------------54406773AE687C61903E147E
> Content-Type: text/plain; charset=us-ascii
> Content-Transfer-Encoding: 7bit
> 
> Hi,
> 
> Rough data:
> 
> 1ns simulation of ~22,000 atoms on 8cpu (R12000, 400MHZ) with the 
> gromacs FF, with PME, time step 2fs, takes me 44-48 hours.
> 
> Ran.
> 
> ehab at biof.ufrj.br wrote:
> 
> > Hi all,
> > Please, somebody can tell me how is the time performance of 
> GROMACS in a
> > Origin 2000? I just need to know the system size, the time of the 
> simulation> (like 1ns) and the real time it took to run (like 3 
> days) on this machine.
> >
> > Thanks in advance,
> >
> > Elza
> >
> > *************************************
> > Ludwig Institute for Cancer Research
> > Computational Biology Lab
> > Sao Paulo-SP - Brazil
> > _______________________________________________
> > gmx-users mailing list
> > gmx-users at gromacs.org
> > http://www.gromacs.org/mailman/listinfo/gmx-users
> > Please don't post (un)subscribe requests to the list. Use the
> > www interface or send it to gmx-users-request at gromacs.org.
> 
> --
> ------------------------------------------------------
> Ran Friedman
> Laser laboratory for fast reactions in biology
> Department of biochemistry
> Faculty of life sciences
> Tel-Aviv university
> 972-3-6409824
> ------------------------------------------------------
> 
> 
> 
> --------------54406773AE687C61903E147E
> Content-Type: text/html; charset=us-ascii
> Content-Transfer-Encoding: 7bit
> 
> <!doctype html public "-//w3c//dtd html 4.0 transitional//en">
> <html>
> 
> <pre>Hi,</pre>
> 
> <pre></pre>
> 
> <pre>Rough data:</pre>
> 
> <pre>1ns simulation of ~22,000 atoms on 8cpu (R12000, 400MHZ) with 
> the gromacs FF, with PME, time step 2fs, takes me 44-48 hours.</pre>
> 
> <pre></pre>
> 
> <pre>Ran.</pre>
> 
> <pre></pre>
> ehab at biof.ufrj.br wrote:
> <blockquote TYPE=CITE>Hi all,
> <br>Please, somebody can tell me how is the time performance of 
> GROMACSin a
> <br>Origin 2000? I just need to know the system size, the time of 
> the simulation
> <br>(like 1ns) and the real time it took to run (like 3 days) on 
> this machine.
> <p>Thanks in advance,
> <p>Elza
> <p>*************************************
> <br>Ludwig Institute for Cancer Research
> <br>Computational Biology Lab
> <br>Sao Paulo-SP - Brazil
> <br>_______________________________________________
> <br>gmx-users mailing list
> <br>gmx-users at gromacs.org
> <br>http://www.gromacs.org/mailman/listinfo/gmx-users">" 
> target="l">http://www.gromacs.org/mailman/listinfo/gmx-users
> <br>Please don't post (un)subscribe requests to the list. Use the
> <br>www interface or send it to gmx-users-
> request at gromacs.org.</blockquote>
> <pre>-- 
> ------------------------------------------------------
> Ran Friedman
> Laser laboratory for fast reactions in biology
> Department of biochemistry
> Faculty of life sciences
> Tel-Aviv university
> 972-3-6409824
> ------------------------------------------------------</pre>
> </html>
> 
> --------------54406773AE687C61903E147E--
> 
> 
> 
> --__--__--
> 
> _______________________________________________
> gmx-users mailing list
> gmx-users at gromacs.org
> http://www.gromacs.org/mailman/listinfo/gmx-users
> 
> 
> End of gmx-users Digest
> 


------------------------------------------------------------------------
Vote no Universia para o Prêmio IBest 2004 e concorra a uma
viagem para Trancoso.
www.universiabrasil.net

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