Re: [deal.II] Complex-valued distributed matrices in dealii

2020-07-25 Thread Wolfgang Bangerth
On 7/23/20 10:42 AM, Pascal Kraft wrote: I have Trillions compiled with support for complex numbers and also searched through the LinearAlgebra documentation. I don't think I knew that one can compile Trilinos with complex numbers. How do you do that? It does not greatly surprise me that w

Re: [deal.II] Accessing nodal values of a FEM solution

2020-07-25 Thread Xuefeng Li
On Fri, Jul 24, 2020 at 9:58 PM Wolfgang Bangerth wrote: > On 7/23/20 12:07 PM, Xuefeng Li wrote: > > > > Well, the above function calculates the gradients of a finite element at > the > > quadrature points of a cell, not at the nodal points of a cell. > > Such a need arises in the following situ

Re: [deal.II] Memory loss in system solver

2020-07-25 Thread Alberto Salvadori
It happens to me the same, the memory loss increments at each call if the solver. It happens with BICG and with GMRES as well. Alberto Salvadori Associate Professor DIMI, University of Brescia, Italy > On 25 Jul 2020, at 10:24, Richard Schussnig > wrote: > > Hi Alberto, > I might be having

[deal.II] Memory loss in system solver

2020-07-25 Thread Richard Schussnig
Hi Alberto, I might be having a similar or even the same problem with petsc! In my case, the memory accumulated is proportional to the number of iterations done in the SolverFGMRES solver. Also, when using trilinos (switch between petsc and trilinos see step 40 I believe), this does not(!) happe