[petsc-users] General question about a structured non-uniform grid

[John Alletto]

All,

I have a general question about a structured non-uniform grid.

I have set the coordinates X,Y,Z in my code by first calling setUniformGrid and then by setting the coordinates.
I have printed out the coordinates and those are as expected.

I an non-uniform grid the code will need a specific delta_x delta_y and delta_z since they will differ through out the grid.

Does PETSc take a derivative of the coordinates (by default) to get the list of delta’s or do I need to do something specific ?

Many Thanks in Advance
John



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