[mesa-users] relax_initial_composition

[Josiah Schwab]

Hi Mike,

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> So, I have 8 species, and the composition is defined in 234 shells, from the center to the surface. Labeling the columns, I have
>
>   1. - M(r)/Mstar         h1                 he3              he4               c12             n14             o16              ne20           mg24
> 1.000000000000 0.00000000 0.00000000 0.00000000 0.50000000 0.00000000 0.50000000 0.00000000 0.00000000
> 0.999995394800 0.00000000 0.00000000 0.00000000 0.50000000 0.00000000 0.50000000 0.00000000 0.00000000
> 0.999988487100 0.00000000 0.00000000 0.00000000 0.50000000 0.00000000 0.50000000 0.00000000 0.00000000
> etc.
>
> So, Mesa is acting as if the h1 column has 1.000 everywhere and the other columns have zeros everywhere. 
>
> Does anything leap out at anybody about what I might be doing wrong?

Can you try reordering the lines in the file so that 1-M(r)/Mstar
increases monotonically?  (So just reverse the order of the lines.)

That's the first thing that pops to mind.  I'll take a closer look at
your message this afternoon.

Josiah