Peggy Yao wrote:
Thank you, Justin.

I am using GMX 4.0.2. Do I need to have the -np option in all grompp and mdrun commands? Thanks in advance!


Read the -h of each program, as well as the numerous threads on the topic in the list archive.

-Justin

Peggy

On Tue, Feb 17, 2009 at 3:02 PM, Justin A. Lemkul <[email protected] <mailto:[email protected]>> wrote:



    Peggy Yao wrote:

        Dear all,

        In order to run Gromacs on multiple processors, I should put the
        number of processors in the commands. For example,

        grompp -np <nr> -o topol.tpr <other options>


    Only if you're using GMX < 4.0.



        My question is: nr should be the number of processors, or the
        number of cores? If I have a quad-core processor, should I put 4?


    Number of cores.  Try it and you will see.

    -Justin

        Thanks,
        Peggy




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

    Justin A. Lemkul
    Graduate Research Assistant
    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
Graduate Research Assistant
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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