[Nek5000-users] n2to3 mesh size error

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

Its a 25X25 square grid in 2D. Im trying to extrude this with 10 elements
in the z direction.

On Tue, Nov 14, 2017 at 8:13 AM <nek5000-users at lists.mcs.anl.gov> wrote:

> What is the number of elements in your mesh?
>
> On Nov 13, 2017, at 11:40 PM, nek5000-users at lists.mcs.anl.gov wrote:
>
> Gmsh to .rea using CPraveen's python mesh converter.
>
> On Mon, Nov 13, 2017, 10:52 PM <nek5000-users at lists.mcs.anl.gov> wrote:
>
>> Looks like the boundary conditions in your .rea file are somehow messed
>> up. How do you generate you .rea?
>>
>> -----Original message-----
>> > From:nek5000-users at lists.mcs.anl.gov <nek5000-users at lists.mcs.anl.gov>
>> > Sent: Tuesday 14th November 2017 4:47
>> > To: nek5000-users at lists.mcs.anl.gov
>> > Subject: [Nek5000-users] n2to3 mesh size error
>> >
>> > Hi all,
>> >
>> > I keep running into an error whenever I want to use n2to3 to extrude my
>> mesh from 2 dimensions to 3. My workflow is as follows:
>> >
>> > gmsh .geo file -> gmsh .msh file -> .rea file -> n2to3 > .rea (3D) file.
>> >
>> > Now if the original 2D .rea file obtained from gmsh contains less than
>> 1000 elements, n2to3 fails with the error
>> >
>> > At line 651 of file n2to3.f (unit = 10, file = msh_test.rea)
>> > Fortran runtime error: Bad value during integer read
>> >
>> > However, should this not be the case (mesh size > 1000) its all smooth
>> sailing. The trouble is with a mesh of that size my processor and memory
>> requirements quickly blow up.
>> >
>> > Incidentally, genmap fails under almost exactly the same conditions.
>> >
>> > Is there a lower limit to mesh size issue for nek5000 that Im missing
>> here?
>> >
>> > Sincerely,
>> > --
>> > Amitvikram Dutta
>> > Graduate Research Assistant
>> > Fluid Mechanics Research Lab
>> > University of Waterloo
>> > _______________________________________________
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>> > Nek5000-users at lists.mcs.anl.gov
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> --
>
> *Amitvikram Dutta*
>
> Graduate Research Assistant
>
> Fluid Mechanics Research Lab
>
> University of Waterloo
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>
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-- 

*Amitvikram Dutta*

Graduate Research Assistant

Fluid Mechanics Research Lab

University of Waterloo
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