[petsc-users] I expected the Laplace run with a smaller delta to have a more accurate solution, yet they come out almost exactly the same.

[Alletto, John M]

I have set up a test for running a Laplacian solver with 2 sets of data.
One has twice as many points as the other.
Both cover the same range, I input the X, Y and Z variables set using SetCoordinates.

I compare the results with an analytical model.

I expected the Laplace run with a smaller delta to have a more accurate solution, yet they come out almost exactly the same.

Any ideas?


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