[aspect-devel] Geometry dimensions affect convergence?

[Eric Heien]

Hi Timo,

Thanks for the quick response.  It seems to work now - I'll have the student check in more detail and let you know if we encounter any more problems.

Thanks again,

-Eric

On Nov 5, 2012, at 5:23 PM, Timo Heister wrote:

> Hi Eric,
> 
> this is because we are not setting the length_scale in
> geometry_model/box.cc correctly. Can you update to r1344 and try again
> please?
> 
> On Mon, Nov 5, 2012 at 7:04 PM, Eric Heien <emheien at ucdavis.edu> wrote:
>> Hi everyone,
>> 
>> I'm working with a student here to test Aspect on some simple geophysics problems.  We've noticed that solver convergence is sensitive to the dimensions of the model and for some models the size of the geometry will determine whether the solver converges or not.  I've attached two parameter files - the good one runs to completion while the bad one fails to converge on the first step - note that parameters other than dimension are also changed but everything is still within ranges expected of an Earthlike mantle.  Can anyone give suggestions about why this happens and what we can do to fix it?
>> 
>> Thanks,
>> 
>> -Eric
>> 
>> 
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> 
> 
> 
> -- 
> Timo Heister
> http://www.math.tamu.edu/~heister/
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