[Nek5000-users] Running Simulations in Parallel with nekbmpi

[nek5000-users at lists.mcs.anl.gov]

Hey John,

Just a initial thought, but have you set "lp" in the SIZE file to 2?

Josh

On Wed, May 11, 2011 at 1:44 PM,  <nek5000-users at lists.mcs.anl.gov> wrote:
> Hello,
>
> I recently built nek on a new machine with an Intel i7.  I think I have all
> the necessary libraries and packages installed but it looks like nek is
> trying to run 4 processors in series when I use nekbmpi.   Has anyone
> experienced a similar problem?  Below is the header of my logfile for a case
> where I tried running with two processors.
>
>
> Thanks,
>
> John
>
> /----------------------------------------------------------\\
> |      _   __ ______ __ __  ______  ____   ____   ____     |
> |     / | / // ____// //_/ / ____/ / __ \\ / __ \\ / __ \\    |
> |    /  |/ // __/  / ,<   /___ \\  / / / // / / // / / /    |
> |   / /|  // /___ / /| | ____/ / / /_/ // /_/ // /_/ /     |
> |  /_/ |_//_____//_/ |_|/_____/  \\____/ \\____/ \\____/      |
> |                                                          |
> |----------------------------------------------------------|
> |                                                          |
> | NEK5000:  Open Source Spectral Element Solver            |
> | COPYRIGHT (c) 2008-2010 UCHICAGO ARGONNE, LLC            |
> | Version:  1.0rc1 / SVN r684                              |
> | Web:      http://nek5000.mcs.anl.gov                     |
> |                                                          |
> \\----------------------------------------------------------/
>
>
>  Number of processors:           1
>  REAL    wdsize      :           8
>  INTEGER wdsize      :           4
> /----------------------------------------------------------\\
> |      _   __ ______ __ __  ______  ____   ____   ____     |
> |     / | / // ____// //_/ / ____/ / __ \\ / __ \\ / __ \\    |
> |    /  |/ // __/  / ,<   /___ \\  / / / // / / // / / /    |
> |   / /|  // /___ / /| | ____/ / / /_/ // /_/ // /_/ /     |
> |  /_/ |_//_____//_/ |_|/_____/  \\____/ \\____/ \\____/      |
> |                                                          |
> |----------------------------------------------------------|
> |                                                          |
> | NEK5000:  Open Source Spectral Element Solver            |
> | COPYRIGHT (c) 2008-2010 UCHICAGO ARGONNE, LLC            |
> | Version:  1.0rc1 / SVN r684                              |
> | Web:      http://nek5000.mcs.anl.gov                     |
> |                                                          |
> \\----------------------------------------------------------/
>
>
>  Number of processors:           1
>  REAL    wdsize      :           8
>  INTEGER wdsize      :           4
>
>
>   Beginning session:
>
> /home/akerleyj/repos/nek5_svn/research/flatchan_Re1600/fc1d.rea
>
>
>  timer accuracy:   0.0000000E+00 sec
>
>  read .rea file
>  nelgt/nelgv/lelt:     1510     1510     1600
>  lx1  /lx2  /lx3 :        8        8        8
>
>  mapping elements to processors
>
>
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>
>



-- 
Josh Camp

"All that is necessary for the triumph of evil is that good men do
nothing" -- Edmund Burke