Re: [deal.II] Rectangular matrix, constraints

2023-01-09 Thread Wolfgang Bangerth
On 1/8/23 08:40, Basca Jadamba wrote: I am trying to assemble a rectangular matrix S with a property that K*U=S*A where A/U is the coefficient/solution pair in an elliptic PDE (think -div(a grad u) = f) and where K is the system matrix. S is a FullMatrix (no sparsity pattern) and it works fine

Re: [deal.II] Assemble system slowing down the program

2023-01-09 Thread Wasim Niyaz Munshi ce21d400
Thank you for pointing that out. After passing my solution vector as reference the assembly time has reduced from 2 seconds to 0.2 seconds. Thanks and regards Wasim Niyaz Research scholar CE Dept. IITM On Sun, 8 Jan, 2023, 7:31 pm Jean-Paul Pelteret, wrote: > Hi Wasim, > > It looks like

[deal.II] deal.II Newsletter #237

2023-01-09 Thread 'Rene Gassmoeller' via deal.II User Group
Hello everyone! This is deal.II newsletter #237. 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: #14649: Update clang-tidy checks for recent clang versions (proposed