[Mesa-users] problem of ccsn_llp

[Jared Goldberg]

Hi Kai-an,

We need a lot more than this to help.  Please send inlists,
run_star_extras, enough to run the exact model that you see failing.
Can you send ready_for_edep.mod that fails? What explosion energy did you
use?

The message

> stopping because of problems dt < min_timestep_limit
> terminated evolution: cannot find acceptable model

just means that the model is running into trouble and is cutting its
timesteps to find an adequate solution. This is one of the most generic
failure messages in MESA.

P.S. I'm still looking into the weird behavior after core Si burning for
your other open thread, and I imagine others on this list might be as well.

~Jared

On Mon, May 17, 2021 at 8:11 AM 游凱安 via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> Dear professors,
>
> I have trouble running ccsn_llp.
>
> Usually I put the "final.mod" from make_pre_ccsn to the ccsn_llp.
>
> the initial mass of "final.mod" is 20m.
>
> However, I have tried various masses before,
>
> and I know the problem usually occur in part_edep due to these factor are
> not big enough.
>
> max_age_in_seconds
> total_mass_for_inject_extra_ergs_sec
>
> but this  time the fail message is quite weird.
>
> stopping because of problems dt < min_timestep_limit
> terminated evolution: cannot find acceptable model
>
> it stop after finishing part_edep and only run few steps in part1.
>
> I have retry make_pre_ccsn before and still not success.
>
> but I have tried the others model and they still can work.
>
> how can I fix the problem?
>
> Thanks for your help and patience.
>
> ~Kai-An
> _______________________________________________
> mesa-users at lists.mesastar.org
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