Re: [deal.II] Modifying shape function data in MatrixFree

2020-12-31 Thread luca.heltai
> On 31 Dec 2020, at 12:09, 'David' via deal.II User Group > wrote: > > > The absolute errors at the end of each iteration are of the order > \mathcal{O}(10^{-10}). Also, if I compare my two-point residual assembly > using matrix-free with the 'usual' spatial residual assembly and compute

[deal.II] Modifying shape function data in MatrixFree

2020-12-29 Thread 'David' via deal.II User Group
Hi all, I'm currently trying to implement a vectorized variant of the residual assembly as it is done in step-44/one of the corresponding code-gallery examples using FEEvaluation objects in combination with matrix-free. I was not able to find an appropriate solution for the given code line