[gmx-users] input/output error in production grompp

Justin A. Lemkul jalemkul at vt.edu
Wed Jun 13 15:24:09 CEST 2012



On 6/13/12 9:22 AM, Malai wrote:
> HI Justin,
>
> I did use the .pdb file as I showed in the grompp command. If I got I/O error,
> the mdrun should not work? but here the mdrun is working. Thanks.
>

As I said before, if the .tpr file was produced, there was no problem.  The 
error message makes no sense at all to me.

-Justin

> On Wed, Jun 13, 2012 at 9:14 PM, Justin A. Lemkul <jalemkul at vt.edu
> <mailto:jalemkul at vt.edu>> wrote:
>
>
>
>     On 6/13/12 9:11 AM, Malai wrote:
>
>         Hello Justin,
>
>         Thanks for reply. After getting this, I started to run production run
>         but here i
>         didnt get any error. so is it OK? or still I need to look at this error?
>         Thanks
>
>
>     What's anomalous to me is that grompp produced an I/O error (referencing an
>     unused or nonexistent file) but still produced a .tpr file.  Fatal errors
>     prevent grompp from working, so you shouldn't have gotten a .tpr file in
>     this case.
>
>     You need coordinates in the .tpr file to work, but if you did in fact use a
>     .pdb file, then the .tpr is fine.  The reference to the .gro file is still a
>     complete mystery to me.
>
>     -Justin
>
>         On Wed, Jun 13, 2012 at 8:35 PM, Justin A. Lemkul <jalemkul at vt.edu
>         <mailto:jalemkul at vt.edu>
>         <mailto:jalemkul at vt.edu <mailto:jalemkul at vt.edu>>> wrote:
>
>
>
>             On 6/13/12 8:27 AM, Malai wrote:
>
>                 HI,
>
>                 Sorry for wrongly typing. The command I issued is:  grompp -v -f
>         hex1.mdp -c
>                 hex1.pdb -p hex1.top -o hex1.tpr.
>
>                 The error is bellow:
>
>
>                 Error:
>                 Program grompp, VERSION 4.5.4
>                 Source code file: futil.c, line: 491
>
>                 File input/output error:
>                 hex1.gro
>                 For more information and tips for troubleshooting, please check
>         the GROMACS
>                 website at http://www.gromacs.org/______Documentation/Errors
>         <http://www.gromacs.org/____Documentation/Errors>
>                 <http://www.gromacs.org/____Documentation/Errors
>         <http://www.gromacs.org/__Documentation/Errors>>
>
>                 <http://www.gromacs.org/____Documentation/Errors
>         <http://www.gromacs.org/__Documentation/Errors>
>                 <http://www.gromacs.org/__Documentation/Errors
>         <http://www.gromacs.org/Documentation/Errors>>>
>
>
>             Even with the corrected command, I see no way for this error to come up.
>               There is no reference to a .gro file anywhere in your command.
>
>
>             -Justin
>
>             --
>             ==============================____==========
>
>
>             Justin A. Lemkul, Ph.D.
>             Research Scientist
>             Department of Biochemistry
>             Virginia Tech
>             Blacksburg, VA
>             jalemkul[at]vt.edu <http://vt.edu> <http://vt.edu> | (540) 231-9080
>         <tel:%28540%29%20231-9080> <tel:%28540%29%20231-9080>
>         http://www.bevanlab.biochem.____vt.edu/Pages/Personal/justin
>         <http://vt.edu/Pages/Personal/justin>
>             <http://www.bevanlab.biochem.__vt.edu/Pages/Personal/justin
>         <http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin>>
>
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>     --
>     ==============================__==========
>
>     Justin A. Lemkul, Ph.D.
>     Research Scientist
>     Department of Biochemistry
>     Virginia Tech
>     Blacksburg, VA
>     jalemkul[at]vt.edu <http://vt.edu> | (540) 231-9080 <tel:%28540%29%20231-9080>
>     http://www.bevanlab.biochem.__vt.edu/Pages/Personal/justin
>     <http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin>
>
>     ==============================__==========
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-- 
========================================

Justin A. Lemkul, Ph.D.
Research Scientist
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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