open TELEMAC-MASCARET The mathematically superior suite of solvers

Dear users,

I wonder if anyone could help me fix my current problem.
I had checked a lot of Subject but I still can not solve the problem.

In the given example, it can work without problems, but it is not executed when I change the number of time steps.
And if I reduce the time step, it will take time.

I need help I hope someone can tell me what is the problem.

REGARDS
YASMINA.