[mesa-users] question

[Ehsan Moravveji]

Dear Sanaz,

I took a quick peek at your inlist, and tried it with v. 7678. If you look at the “dt_limit” in your terminal STDOUT, you notice that MESA complains politely about the time step, e.g.:



This is not a surprise, because in the &controls section, you have forced MESA to take very small timesteps:
      max_years_for_timestep = 3.67628942044319d-05
If you comment out this, then MESA decides more cleverly, and the evolution proceeds normally.

Furthermore, I strongly suggest you to comment out the two following lines too, unless you have a very strong reason to keep them  (which I cannot imagine any for your simplified setup):
         varcontrol_target = 1d-3
         dX_nuc_drop_limit = 2d-2 ! 5d-3

So, it is always great, and a good practice, to start from one of the test_suite “solved” examples; however, before pressing the button, please study all the inlist items very carefully, and dig out for their meanings from the star_job <http://mesa.sourceforge.net/star_job_defaults.html> and controls <http://mesa.sourceforge.net/controls_defaults.html> documentation, to ensure that you get what you ask for.

Best regards,
Ehsan.


> On 30 Jun 2016, at 07:51, Sanaz Lotfiyani <sanaz.lotfiani at gmail.com> wrote:
> 
> Hi Mesa users
> 
> I have executed star/test_suite/make_massive_with_uniform_composition
> in order to accomplish  H_R diagram like this for 25M star and Z=0/02<IMG_0980.jpg>
>  I  achieved  this gragh from executing make_massive_with_uniform_composition<25Mstar.jpg>
> I send my inlist as follows
> would you please guide me
> Best wishes 
> Sanaz
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