[petsc-users] Matrix-free method in PETSc

[Yuyun Yang]

Hello team,

I wanted to apply the Krylov subspace method to a matrix-free implementation of a stencil, such that the iterative method acts on the operation without ever constructing the matrix explicitly (for example, when doing backward Euler).

I'm not sure whether there is already an example for that somewhere. If so, could you point me to a relevant example?

Thank you!

Best regards,
Yuyun
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