examples/advdiff assembled operator for calculating eigenvalues
I'm trying also to set up an assembled version of the advdiff operator (see #5 ) to calculate the eigenvalues and study the effect of precondtioning on the performance of gmres . I've altered the AlgorithmConfigurator accordingly (Matrix::Enum::assembled). The compilation aborts and gives nasty and long compile errors ;)
So my issues / questionn / support requests are: Is there a way to transform the fully discretized matrixfree advdiff operator into an assembled operator so the eigenvalues can be calculated? And how can this be implemented?
is calculation of eigenvalues possible for the matrixfree operator a
Thanks for the help and have a nice day,