Custom FillPatch, AverageDown

[Maccchiatooo]

Hi,

I would like to know if I can custom FillPatch and AverageDown functions embeded? How can I find the exact interpolation method for FillPatch and AverageDown?

Thanks,
Chunheng.

[WeiqunZhang]

Do you mean AmrLevel::FillPatch or FillPatch in one of the tests? Since the only AverageDown function with the exact spelling I can find is in amrex/Tests/Amr/Advection_AmrCore/, I assume the question is about that test. If it's about that test, you can change it here

amrex/Tests/Amr/Advection_AmrCore/Source/AmrCoreAdv.cpp

Line 504 in 1189a7f

Interpolater* mapper = &cell_cons_interp;

and

amrex/Tests/Amr/Advection_AmrCore/Source/AmrCoreAdv.cpp

Line 451 in 1189a7f

AmrCoreAdv::AverageDown ()

[Maccchiatooo]

Thank you. I mean the exact interpolation function used in this test. Like how to evaluate the average of those values.

Chunheng.

[WeiqunZhang]

AMReX provides a number of interpolation classes. https://amrex-codes.github.io/amrex/docs_html/AmrCore.html?highlight=interpolater#fillpatchutil-and-interpolater If none of them satisfies your requirement, you can write your class for it or file a feature request.

how to evaluate the average of those values.

Not sure what that means. Could you clarify?