[gmx-users] Re: Fwd: gmx-users Digest, Vol 59, Issue 74

li bai javacfish at yahoo.com.cn
Tue Mar 10 16:26:15 CET 2009


Thanks for your reminder!

javacfish
---------------------------------------------------
li

i think if you use -maxwarn 1, that's fine only for this time only.
Actually you will also get the same prob later at the when using posre.mdp and also mdrun.mdp ..if you still you the old mdp file.
the best way, you should have the new mdp which is generated as an output after you run the grompp

anyway..all the best

On Tue, Mar 10, 2009 at 4:06 PM, li bai <javacfish at yahoo.com.cn> wrote:


    I have resolved the problem,please see:
    http://www.gromacs.org/pipermail/gmx-users/2008-November/038056.html

    Add the "grompp -v -maxwarn 1", That is ok!

    I think there is possible something wrong to
    the .mdp file. That is not necessary in the gromacs 3.x,
    but not in gromacs 4.x.Gromacs 4.x check every err in every step!

    Thanks all!
    --- On Tue, 3/10/09, sitiazma <sitiazma at gmail.com> wrote:


        From: sitiazma <sitiazma at gmail.com>
        Subject: Fwd: gmx-users Digest, Vol 59, Issue 74
        To: javacfish at yahoo.com.cn
        Date: Tuesday, March 10, 2009, 9:04 PM


        I think your problem below because you are using old mdp file for new gromacs 4.

        so now you should rename the mdout.mdp to new.mdp
        and you need to change the below line from berendson to V-rescale

        ; OPTIONS FOR WEAK COUPLING ALGORITHMS
        ; Temperature coupling
        tcoupl                   = V-rescale

        good luck

        Siti

        Message: 2
        Date: Tue, 10 Mar 2009 17:32:39 +0800 (CST)
        From: li bai <javacfish at yahoo.com.cn>
        Subject: [gmx-users] "Gromacs 4 grompp -v" err
        To: gmx-users at gromacs.org
        Message-ID: <117928.54707.qm at web15005.mail.cnb.yahoo.com>
        Content-Type: text/plain; charset="utf-8"

        Hello,everyone!
        Sorry for the last letter!
        I have install gromacs4, but when I stury the tutor of gromacs, and input command "grompp -v in every examples", the err be engenderred as below:

        li at localhost water]$  grompp -v
                                 :-)  G  R  O  M  A  C  S  (-:

                       Go Rough, Oppose Many Angry Chinese Serial killers

                                    :-)  VERSION 4.0.4  (-:


              Written by David van der Spoel, Erik Lindahl, Berk Hess, and others.
               Copyright (c) 1991-2000, University of Groningen, The Netherlands.
                     Copyright (c) 2001-2008, The GROMACS development team,
                    check out http://www.gromacs.org for more information.

                 This program is free software; you can redistribute it and/or
                  modify it under the terms of the GNU General Public License
                 as published by the Free Software Foundation; either version 2
                     of the License, or (at your option) any later version.

                                        :-)  grompp  (-:

        Option     Filename  Type         Description
        ------------------------------------------------------------
          -f     grompp.mdp  Input, Opt.  grompp input file with MD parameters
         -po      mdout.mdp  Output       grompp input file with MD parameters
          -c       conf.gro  Input        Structure file: gro g96 pdb tpr tpb tpa
          -r       conf.gro  Input, Opt.  Structure file: gro g96 pdb tpr tpb tpa
         -rb       conf.gro  Input, Opt.  Structure file: gro g96 pdb tpr tpb tpa
          -n      index.ndx  Input, Opt.  Index file
          -p      topol.top  Input        Topology file
         -pp  processed.top  Output, Opt. Topology file
          -o      topol.tpr  Output       Run input file: tpr tpb tpa
          -t       traj.trr  Input, Opt.  Full precision trajectory: trr trj cpt
          -e       ener.edr  Input, Opt.  Energy file: edr ene

        Option       Type   Value   Description
        ------------------------------------------------------
        -[no]h       bool   no      Print help info and quit
        -nice        int    0       Set the nicelevel
        -[no]v       bool   yes     Be loud and noisy
        -time        real   -1      Take frame at or first after this time.
        -[no]rmvsbds bool   yes     Remove constant bonded interactions with virtual
                                    sites
        -maxwarn     int    0       Number of allowed warnings during input processing
        -[no]zero    bool   no      Set parameters for bonded interactions without
                                    defaults to zero instead of generating an error
        -[no]renum   bool   yes     Renumber atomtypes and minimize number of
                                    atomtypes

        Ignoring obsolete mdp entry 'title'
        Ignoring obsolete mdp entry 'cpp'
        Ignoring obsolete mdp entry 'domain-decomposition'
        Replacing old mdp entry 'unconstrained-start' by 'continuation'
        Ignoring obsolete mdp entry 'dihre-tau'
        Ignoring obsolete mdp entry 'nstdihreout'
        Ignoring obsolete mdp entry 'nstcheckpoint'

        Back Off! I just backed up mdout.mdp to ./#mdout.mdp.2#

        WARNING 1 [file grompp.mdp, line unknown]:
          Unknown or double left-hand 'bd-temp' in parameter file


        checking input for internal consistency...

        NOTE 1 [file grompp.mdp, line unknown]:
          The Berendsen thermostat does not generate the correct kinetic energy
          distribution. You might want to consider using the V-rescale thermostat.

         processing topology...
        Opening library file /home/bai/workdir/gromacs4/share/gromacs/top/ffgmx.itp
        Opening library file /home/bai/workdir/gromacs4/share/gromacs/top/ffgmxnb.itp
        Opening library file /home/bai/workdir/gromacs4/share/gromacs/top/ffgmxbon.itp
        Opening library file /home/bai/workdir/gromacs4/share/gromacs/top/ff_dum.itp
        Opening library file /home/bai/workdir/gromacs4/share/gromacs/top/spc.itp
        Generated 1284 of the 1485 non-bonded parameter combinations
        Excluding 2 bonded neighbours molecule type 'SOL'
        processing coordinates...
        double-checking input for internal consistency...
        Velocities were taken from a Maxwell distribution at 300 K
        renumbering atomtypes...
        converting bonded parameters...
        initialising group options...
        processing index file...
        Analysing residue names:
        Opening library file /home/bai/workdir/gromacs4/share/gromacs/top/aminoacids.dat
        There are:   216      OTHER residues
        There are:     0    PROTEIN residues
        There are:     0        DNA residues
        Analysing Other...
        Making dummy/rest group for Acceleration containing 648 elements
        Making dummy/rest group for Freeze containing 648 elements
        Making dummy/rest group for Energy Mon. containing 648 elements
        Making dummy/rest group for VCM containing 648 elements
        Number of degrees of freedom in T-Coupling group System is 1293.00
        Making dummy/rest group for User1 containing 648 elements
        Making dummy/rest group for User2 containing 648 elements
        Making dummy/rest group for XTC containing 648 elements
        Making dummy/rest group for Or. Res. Fit containing 648 elements
        Making dummy/rest group for QMMM containing 648 elements
        T-Coupling       has 1 element(s): System
        Energy Mon.      has 1 element(s): rest
        Acceleration     has 1 element(s): rest
        Freeze           has 1 element(s): rest
        User1            has 1 element(s): rest
        User2            has 1 element(s): rest
        VCM              has 1 element(s): rest
        XTC              has 1 element(s): rest
        Or. Res. Fit     has 1 element(s): rest
        QMMM             has 1 element(s): rest
        Checking consistency between energy and charge groups...

        NOTE 2 [file grompp.mdp, line unknown]:
          You are using a plain Coulomb cut-off, which might produce artifacts.
          You might want to consider using PME electrostatics.


        This run will generate roughly 1 Mb of data
        writing run input file...

        There were 2 notes

        There was 1 warning

        -------------------------------------------------------
        Program grompp, VERSION 4.0.4
        Source code file: gmx_fatal.c, line: 481

        Fatal error:
        Too many warnings (1), grompp terminated.
        If you are sure all warnings are harmless, use the -maxwarn option.
        -------------------------------------------------------


        Who can help me to solve this problem?



      
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