From dfadd4766f9367eecde5c93b87818ebe646ea2eb Mon Sep 17 00:00:00 2001 From: "Vasco C. B. Ferreira" Date: Thu, 16 Jul 2026 17:15:28 +0200 Subject: [PATCH] update status message --- README.md | 51 --------------------------------------------------- 1 file changed, 51 deletions(-) diff --git a/README.md b/README.md index 705fc71..8cc1b1c 100644 --- a/README.md +++ b/README.md @@ -8,56 +8,5 @@ This simulation of the Vlasov-Poisson system in 1x1v dimensions uses status: Fail - -Initial E = 0 constant.... - -last sim: - -Timestep 80 / 1000 (simulation time = 8) -cells = 396 - dofs = 1189 -Refinement Started -Refinement Finished -Grid written to results/grid_80.gnuplot -Refinement step done in 0.000000[s] -step made in 42.0398 seconds - -Saving results... Time since start = 0 - -Timestep 81 / 1000 (simulation time = 8.1) -cells = 517 - dofs = 1552 - -Exception: -------------------------------------------------------- -An error occurred in line <1345> of file in function - void dealii::SolverCG::solve(const MatrixType&, VectorType&, const VectorType&, const PreconditionerType&) [with MatrixType = dealii::SparseMatrix; PreconditionerType = dealii::PreconditionIdentity; VectorType = dealii::Vector] -The violated condition was: - solver_state == SolverControl::success -Additional information: - Iterative method reported convergence failure in step 5000. The - residual in the last step was 0.00370817. - - This error message can indicate that you have simply not allowed a - sufficiently large number of iterations for your iterative solver to - converge. This often happens when you increase the size of your - problem. In such cases, the last residual will likely still be very - small, and you can make the error go away by increasing the allowed - number of iterations when setting up the SolverControl object that - determines the maximal number of iterations you allow. - - The other situation where this error may occur is when your matrix is - not invertible (e.g., your matrix has a null-space), or if you try to - apply the wrong solver to a matrix (e.g., using CG for a matrix that - is not symmetric or not positive definite). In these cases, the - residual in the last iteration is likely going to be large. - -Stacktrace: ------------ -#0 ./nufi_poisson: void dealii::SolverCG >::solve, dealii::PreconditionIdentity>(dealii::SparseMatrix const&, dealii::Vector&, dealii::Vector const&, dealii::PreconditionIdentity const&) -#1 ./nufi_poisson: PoissonProblem<1>::solve() -#2 ./nufi_poisson: PoissonProblem<1>::solve_step() -#3 ./nufi_poisson: NuFISolver::run() -#4 ./nufi_poisson: main ---------------------------------------------------------