[Mesa-users] Help regarding MESA

Rob Farmer robert.j.farmer37 at gmail.com
Fri Jul 1 13:13:33 UTC 2022


Hi,
We saw your questions. We have limited time to answer questions so please
be patient.

Have you made some plots of your models? Look at what the model is doing
and try to work out what physics is relevant at this point in time. Do the
plots look sensible? If the plots don't look sensible then that gives you a
hint as to what to look at to change.

In your previous questions you were changing hooks, so do the models work
with your hooks? Is the hook giving the right value in the right units? Is
your hook asking MESA to make large changes to the model?

Rob


On Fri, 1 Jul 2022 at 14:09, ABHIJNAN KAR 20064 <abhijnank20 at iiserbpr.ac.in>
wrote:

> Hi,
> These are the inlists attached along with the extras routine.I am still
> encountering these erros : dt< min_timestep_limit , can’t find acceptable
> model.Any help or insight will be appreciated.
>
> On 30-Jun-2022, at 11:11 PM, ABHIJNAN KAR 20064 <
> abhijnank20 at iiserbpr.ac.in> wrote:
>
> Hi,
> Upon running a binary model, i am getting an error as following.It is
> coming due to dt being smaller than min timestep limit.How to control
> that.I am trying editing the inlists for min timestep, varcontrol but it is
> showing this error.How to fix it?
>
>
> stopping because of problems dt < min_timestep_limit
> bin     286   2.500000   3.847639   0.552923  0.000E+00   1.272727
>   2          1  0.000E+00   0.471405  1.154E+52 -1.181E+35 -1.128E+35
>  -13.368457   1.100000   1.182504   0.000000  0.000E+00 197.154051
> 1.378386 -1.421E-01  0.000E+00  6.357E-08  0.000E+00 -5.347E+33  0.000E+00
>  3.1649E+09   1.400000   0.000000   0.000000 -7.591E+47 154.906754
> 1.538910 -1.000E+00  0.000E+00  1.844-283  0.000E+00 -6.921-285          0
>
>  save photos/b_x286, photos1/1_x286 for model         286
>
>                  runtime (minutes), retries, steps        4.85        66
>     287
> terminated evolution: cannot find acceptable model
> termination code: min_timestep_limit
>
> Regards,
> ABHIJNAN KAR
> BS-MS,IISER Berhampur
>
>
>
>
>
>
>
> Regards,
> ABHIJNAN KAR
> BS-MS,IISER Berhampur
>
>
>
>
>
>
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
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