[deal.II] deal.II Newsletter #227

2022-09-28 Thread 'Rene Gassmoeller' via deal.II User Group
Hello everyone! This is deal.II newsletter #227. It automatically reports recently merged features and discussions about the deal.II finite element library. ## Below you find a list of recently proposed or merged features: #14321: Rotate for dim=1 spacedim=2 (proposed by peterrum)

Re: [deal.II] Mechanisms for deleting cells/edges/vertices in some region

2022-09-28 Thread Wolfgang Bangerth
On 9/26/22 10:04, Lucas Myers wrote: I'm trying to construct a rectangular grid with features at arbitrary locations. The most straightforward way of doing this that I can think of is to generate a rectangular hypercube, delete the cells/edges/vertices around feature locations, and then

Re: [deal.II] How to read all the dof elements in a cell in Petsc MPI problem

2022-09-28 Thread Wolfgang Bangerth
On 9/27/22 23:50, Rahul Gopalan Ramachandran wrote: Thank you for the clarification. Isend should be the way to patch this. Alternatively, what is your opinion on copying the matrix to a single processor (if that is possible) using MPI_Gather? Would the cell iterators then no longer work?