[petsc-users] 4th order stencil within PETSc

[John Alletto]

I have worked with the 7-point star stencil and the 27-point Box stencil. Each goes out from its center +- 1 position in i,j,k.

I have a 13-point star stencil (4th order) which goes out +- 2 positions from its center in i,j,k.

Can I use this in the PETSc ? Do I have to do something different than what is done with smaller conventional stencil’s?



Respectfully
John
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