What compilers did you use to install Gromacs? Often times hangs and other memory errors are related to buggy compilers.

-Justin

priyanka panwar wrote:
Command line was " genion -s em.tpr -o ions.pdb -np 4"

On Mon, May 3, 2010 at 5:19 PM, Justin A. Lemkul <jalem...@vt.edu <mailto:jalem...@vt.edu>> wrote:



    priyanka panwar wrote:

        Hi,
        Thanks for help.
        -Command line was:
        Number of (3-Atomic) solvent molecules:4256
        Replacing solvent molecule 499 (atom 2784) with Na


    That's not a command line.  What command did you actually type
    (exactly) to run genion?


        -Group selected was: 12 (SOL)
        -Gromacs version I am using is 3.3.1


    In the absence of any compelling reason (i.e., consistency with
    previous simulations), using a Gromacs version that is four years
    old is not recommended.  The new 4.0.x series is substantially
    faster and has many new features.

    -Justin

        On Mon, May 3, 2010 at 4:31 PM, Krzysztof Mlynarczyk
        <mitomas...@gmail.com <mailto:mitomas...@gmail.com>
        <mailto:mitomas...@gmail.com <mailto:mitomas...@gmail.com>>> wrote:

           Please post more details including the following:

               * What is the exact command line?
               * What group do you select as a "continuous solvent"? I
        know it
                 might sound weird to ask this but what I learned while
                 teaching students is that these questions really should be
                 asked when there are problems.
               * Which version of Gromacs are you using?


           2010/5/3 priyanka panwar <priyankapanwa...@gmail.com
        <mailto:priyankapanwa...@gmail.com>
           <mailto:priyankapanwa...@gmail.com
        <mailto:priyankapanwa...@gmail.com>>>


               I am  using Gromacs for Simulation of Insulin.I have
        generated
               most of the files but unable to generate the ions.pdb
        file.The
               system is becoming idle after the Selection command. A
        line on
               the command prompt appears as "replacing solvent molecule
        with
               Na" and remains as such for many hours. Is this step really
takes too much time or I am doing something wrong. Thanks
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-- ========================================

    Justin A. Lemkul
    Ph.D. Candidate
    ICTAS Doctoral Scholar
    MILES-IGERT Trainee
    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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--
========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
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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