Is there an example of calculating the error and convergence order with PETSc？I tried to change an example of a wave equation, but the convergence order result and error result are different from the results of the program written under FreeFem++.
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Example about solving mixed finite element (PETSc) | 4 | 300 | July 15, 2022 | |
| Can it possible to find L^2-error and order of convergence in Heat-3d PETSc code (parrallel computing) | 9 | 51 | February 26, 2025 | |
| An error occurred in PETSc | 1 | 348 | June 17, 2022 | |
| Poor results with PETSc | 4 | 446 | June 24, 2021 | |
| The time convergence order of parallel version FreeFem++-mpi is different from that of freefem + + | 0 | 249 | February 28, 2022 |