[Nek5000-users] Interpolation between two meshes

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

Hi Tony,
I have encountered the same issue with g2gi when interpolating very 
large meshes. I don't know what is causing the issue but a workaround is 
to reduce the polynomial order. You obviously loose accuracy by doing 
this, but I still find it better than starting from scratch with the new 
mesh. Hope this helps.

Best,
Mattias


On 03/27/2017 06:37 AM, nek5000-users at lists.mcs.anl.gov wrote:
> Dear Neks,
>
> I have been using 'g2gi' to do interpolation between different meshes. 
> Recently, I have noticed that when I interpolate between two big 
> meshes (say 300000 elements in each mesh), the interpolation hangs at 
> 'call findpts' and never moves on. I tried increasing number of 
> processors and changing 'lpart', but none of these worked.
>
> I'm wondering what could cause the interpolation to hang at 'findpts'. 
> Has anyone encountered similar issue?
>
> Hope anyone could give me some advice. Thank you very much in advance.
>
> Best regards,
> Tony
>
>
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