#include "petscts.h" PetscErrorCode TSSetFromOptions(TS ts)Collective on TS
| ts | - the TS context obtained from TSCreate() |
| -ts_type <type> | - TSEULER, TSBEULER, TSSUNDIALS, TSPSEUDO, TSCN, TSRK, TSTHETA, TSALPHA, TSGLLE, TSSSP, TSGLEE, TSBSYMP | |
| -ts_save_trajectory | - checkpoint the solution at each time-step | |
| -ts_max_time <time> | - maximum time to compute to | |
| -ts_max_steps <steps> | - maximum number of time-steps to take | |
| -ts_init_time <time> | - initial time to start computation | |
| -ts_final_time <time> | - final time to compute to (deprecated: use -ts_max_time) | |
| -ts_dt <dt> | - initial time step | |
| -ts_exact_final_time <stepover,interpolate,matchstep> | - whether to stop at the exact given final time and how to compute the solution at that time | |
| -ts_max_snes_failures <maxfailures> | - Maximum number of nonlinear solve failures allowed | |
| -ts_max_reject <maxrejects> | - Maximum number of step rejections before step fails | |
| -ts_error_if_step_fails <true,false> | - Error if no step succeeds | |
| -ts_rtol <rtol> | - relative tolerance for local truncation error | |
| -ts_atol <atol> Absolute tolerance for local truncation error | ||
| -ts_rhs_jacobian_test_mult | - mat_shell_test_mult_view - test the Jacobian at each iteration against finite difference with RHS function | |
| -ts_rhs_jacobian_test_mult_transpose | - mat_shell_test_mult_transpose_view - test the Jacobian at each iteration against finite difference with RHS function | |
| -ts_adjoint_solve <yes,no> After solving the ODE/DAE solve the adjoint problem (requires | - ts_save_trajectory) | |
| -ts_fd_color | - Use finite differences with coloring to compute IJacobian | |
| -ts_monitor | - print information at each timestep | |
| -ts_monitor_lg_solution | - Monitor solution graphically | |
| -ts_monitor_lg_error | - Monitor error graphically | |
| -ts_monitor_error | - Monitors norm of error | |
| -ts_monitor_lg_timestep | - Monitor timestep size graphically | |
| -ts_monitor_lg_timestep_log | - Monitor log timestep size graphically | |
| -ts_monitor_lg_snes_iterations | - Monitor number nonlinear iterations for each timestep graphically | |
| -ts_monitor_lg_ksp_iterations | - Monitor number nonlinear iterations for each timestep graphically | |
| -ts_monitor_sp_eig | - Monitor eigenvalues of linearized operator graphically | |
| -ts_monitor_draw_solution | - Monitor solution graphically | |
| -ts_monitor_draw_solution_phase <xleft,yleft,xright,yright> | - Monitor solution graphically with phase diagram, requires problem with exactly 2 degrees of freedom | |
| -ts_monitor_draw_error | - Monitor error graphically, requires use to have provided TSSetSolutionFunction() | |
| -ts_monitor_solution [ascii binary draw][:filename][:viewerformat] | - monitors the solution at each timestep | |
| -ts_monitor_solution_vtk <filename.vts,filename.vtu> | - Save each time step to a binary file, use filename-%%03D.vts (filename-%%03D.vtu) | |
| -ts_monitor_envelope | - determine maximum and minimum value of each component of the solution over the solution time |
Certain SNES options get reset for each new nonlinear solver, for example -snes_lag_jacobian <its> and -snes_lag_preconditioner <its>, in order to retain them over the multiple nonlinear solves that TS uses you mush also provide -snes_lag_jacobian_persists true and -snes_lag_preconditioner_persists true