Re: [deal.II] Matrix-free DG with h-adaptive mesh refinement

2022-08-16 Thread Marc Fehling
Hello! You are calling prepare_for_coarsening_and_refinement() twice which is not allowed. Thanks for reporting this on the mailing list -- we will improve the error message that you encountered. I spotted a few issues in the order of events of your program. Tutorials step-32, step-42,

Re: [deal.II] Matrix-free DG with h-adaptive mesh refinement

2022-08-15 Thread Wolfgang Bangerth
On 8/13/22 11:20, M. Bänsch wrote: *** Caution: EXTERNAL Sender *** On Wednesday, August 10, 2022 at 1:06:58 AM UTC+2 Wolfgang Bangerth wrote: It's hard to say what the reason is without having a small test case that shows the issue. Since the issue happens during solution transfer,

Re: [deal.II] Matrix-free DG with h-adaptive mesh refinement

2022-08-13 Thread M . Bänsch
On Wednesday, August 10, 2022 at 1:06:58 AM UTC+2 Wolfgang Bangerth wrote: > > It's hard to say what the reason is without having a small test case that > shows the issue. Since the issue happens during solution transfer, it is > almost certainly not something related to whether or not you

Re: [deal.II] Matrix-free DG with h-adaptive mesh refinement

2022-08-09 Thread Wolfgang Bangerth
On 8/8/22 02:44, M. Bänsch wrote: *** Caution: EXTERNAL Sender *** Dear community, I am currently trying to implement h-adaptive mesh refinement into step-67 (by adding a refine_grid() functionality). As references I looked into step-31

[deal.II] Matrix-free DG with h-adaptive mesh refinement

2022-08-08 Thread M . Bänsch
Dear community, I am currently trying to implement h-adaptive mesh refinement into step-67 (by adding a refine_grid() functionality). As references I looked into step-31 , step-33