[CIG-SEISMO] Can we change the NGLLX?

[Jungrak Son]

To whom it may concern,

Thanks very much for your time to read this email. Let me briefly ask a
question about SpecFEM2D.

I know that SpecFEM2D uses 4th order polynomial degree. (NGLLX = 5 in
constant.h file). *However, can we change the polynomial degree?* Since
this amazing tool can use irregular mesh, I want to compare the result
accuracy among different NGLLX settings from 2 to 10.

Thanks for your consideration.

Sincerely,
Jungrak Son

MS student in Geophysics from Korea
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