fdrmrc / Polydeal

C++ implementation of Polygonal Discontinuous Galerkin method within the deal.II Finite Element library.
https://fdrmrc.github.io/Polydeal/
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Order of quadrature rules on polytopes #119

Open fdrmrc opened 6 months ago

fdrmrc commented 6 months ago

In several examples we use quadrature rules of order $2p+1$ inside each element of the sub-tessellation, which are definitely an overkill, especially in 3D. I've verified locally that decreasing the order (say to $p+1$ only) does not affect accuracy in our examples and gives much better assembly times thanks to better usage of caches.