[Nek5000-users] output files

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

Check mfi() in ic.f. It should be pretty straightforward to understand what's going on and how the data layout look like. If you're not able to unravel how it works just let me know.

Here is the basic layout:

- The first 132 bytes are reserved for the HEADER. Here we store the number of elements, polynomial order, timestamp and the variable present in the fld file.

- Followed by a 4 byte number to test if we need to swap the bytes or not (big vs. small endian).

- Then we store the domain partitioning (global element ids for all elements present in this fld file) 

- Finally the data follows


Stefan

On Jul 9, 2007, at 12:03 AM, nek5000-users at lists.mcs.anl.gov wrote:

> On Mon, 2010-04-12 at 11:12 +0200, nek5000-users at lists.mcs.anl.gov
> wrote:
>> Unfortunately there is no documentation of the data layout. Just led me know if you're interested into the layout details and I'll tell more.
> 
> Hello Stefan,
> 
> Yes, I'd be very interested in that, in particular for the case where
> the data is on the GLL nodes.
> 
> Cheers,
> Frank
> 
>> 
>> Typically we dump the data (fld files) on the GLL mesh. In this case you can use the data for restarts. In addition we provide the option to dump the data onto a regular mesh. This is just for visualization and cannot be used for a restart (the interpolation from uniform->GLL in unstable).
>> 
>> hth,
>> Stefan
>> 
>> 
>> On Apr 12, 2010, at 10:50 AM, nek5000-users at lists.mcs.anl.gov wrote:
>> 
>>> Hello all,
>>> 
>>> Is there a description of the format of the output files?  Are there two
>>> types of output files, one for restarting, the other for
>>> visualization?   
>>> 
>>> Cheers,
>>> Frank
>>> -- 
>>> Frank Herbert Muldoon, Ph.D. Mechanical Engineering
>>> Technische Universität Wien (Technical University of Vienna)
>>> Inst. f. Strömungsmechanik und Wärmeübertragung (Institute of Fluid
>>> Mechanics and Heat Transfer)
>>> Resselgasse 3
>>> 1040 Wien
>>> Tel: +4315880132232
>>> Fax: +4315880132299 
>>> Cell:+436765203470
>>> fmuldoo (skype)
>>> http://tetra.fluid.tuwien.ac.at/fmuldoo/public_html/webpage/frank-muldoon.html
>>> 
>>> _______________________________________________
>>> Nek5000-users mailing list
>>> Nek5000-users at lists.mcs.anl.gov
>>> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
>> 
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> -- 
> Frank Herbert Muldoon, Ph.D. Mechanical Engineering
> Technische Universität Wien (Technical University of Vienna)
> Inst. f. Strömungsmechanik und Wärmeübertragung (Institute of Fluid
> Mechanics and Heat Transfer)
> Resselgasse 3
> 1040 Wien
> Tel: +4315880132232
> Fax: +4315880132299 
> Cell:+436765203470
> fmuldoo (skype)
> http://tetra.fluid.tuwien.ac.at/fmuldoo/public_html/webpage/frank-muldoon.html
> 
> _______________________________________________
> Nek5000-users mailing list
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