Solution accuracy

[RobinBluehub]

When I run 1000 cycles, several warnings appear during the solution.
For example: psetup failed: .../casadi/interfaces/sundials/idas_interface.cpp:849: Calculating Jacobian failed; At t = 0.00844707 and h = 2.17202e-18, the corrector convergence failed repeatedly or with |h| = hmin, Will this affect the accuracy of my final solution results?

[valentinsulzer]

No, it will not affect the accuracy

[RobinBluehub]

What about this warning: Linear solve failed，does it affect the accuracy of the solution?

[valentinsulzer]

No. In both cases the solver tried to take steps that are too large and failed, but later succeeded with a smaller step. If you decrease both the period of the experiment and the dt_max attribute, those warnings might go away (but it might also be slower)

[RobinBluehub]

thank you.