mohit kumar wrote:
i write down all steps till i got stuck...my server is using 4.0.2 version..ya fws_b4pr.gro is successfully created..someone suggest me its may be due to excessive charge...i dnt get that point.


I don't understand what "excessive charge" would be about. All the commands work perfectly on my local machine, therefore, they should work. I would be willing to bet that you're seeing a filesystem blip and grompp can't find your coordinate file (either momentarily or ever). Again, I recommend downloading the coordinate file and processing with grompp on a local machine.

-Justin

On Sun, Jul 12, 2009 at 8:16 PM, Justin A. Lemkul <[email protected] <mailto:[email protected]>> wrote:



    mohit kumar wrote:

        oh!!!!..no i mean that instead of.pdb file i used .gro
        file..from the begining...in the tutorial they dont change to
        .gro type.. but i do...and i carefully apply....i am able to run
        mdrun command for energy minimisation..and in this command i
        want output file ..so i used *-c fws_b4pr.gro*...but when i ran
        grompp for position restrained it show the error..though the
        file has been created in directory/server


    So fws_b4pr.gro was successfully created, but then grompp can't find
    it?  Maybe you're seeing some sort of network/NFS problem when
    accessing the server.  Do you have a local machine where you can try
    again?  Otherwise, post all your commands exactly as you have
    entered them to see if anyone can spot a typo or other problem.

    -Justin

        On Sun, Jul 12, 2009 at 7:47 PM, Justin A. Lemkul
        <[email protected] <mailto:[email protected]>
        <mailto:[email protected] <mailto:[email protected]>>> wrote:



           mohit kumar wrote:

               im trying this spider toxin tutorial as beginner ....the
        mdrun
               command after energy minimization have *-c fws_b4pr.pdb(i
        make
               .gro)* and then on page  no 9 the grompp command for the
        postion
               restrained uses *-c fws_b4pr.gro* and when i run it show:
               Program grompp, VERSION 4.0.2
               Source code file: futil.c, line: 330

               File input/output error:
               fws_b4pr.gro
               ------------------------------
               -------------------------

               "Hey Man You Know, I'm Really OK" (Offspring)
               what may be the reason for this..im really confused!!!


           Probably a typo or you lack read/write permissions in the
        directory.
            Otherwise, how did you "make .gro?"  Did you use editconf,
        or did
           you just rename the file?

           -Justin


               --        MOHIT KUMAR
               Molecular Biochemistry & Biophysics
               Graduate Student
               Illinois Institute of Technology
               Chicago,IL, USA


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           --    ========================================

           Justin A. Lemkul
           Ph.D. Candidate
           ICTAS Doctoral Scholar
           Department of Biochemistry
           Virginia Tech
           Blacksburg, VA
           jalemkul[at]vt.edu <http://vt.edu> <http://vt.edu> | (540)
        231-9080

           http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

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-- MOHIT KUMAR
        Molecular Biochemistry & Biophysics
        Graduate Student
        Illinois Institute of Technology
        Chicago,IL, USA


-- ========================================

    Justin A. Lemkul
    Ph.D. Candidate
    ICTAS Doctoral Scholar
    Department of Biochemistry
    Virginia Tech
    Blacksburg, VA
    jalemkul[at]vt.edu <http://vt.edu> | (540) 231-9080
    http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

    ========================================
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    gmx-users mailing list    [email protected]
    <mailto:[email protected]>
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--
MOHIT KUMAR
Molecular Biochemistry & Biophysics
Graduate Student
Illinois Institute of Technology
Chicago,IL, USA


--
========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

========================================
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