[mesa-users] Can't get mesa star started

Aaron Dotter aaron.dotter at gmail.com
Tue Jun 5 08:09:22 EDT 2012

Hi Leonardo,

This is a problem we sometimes see (in fact we see saw it just last week!).
 Some systems experience the problem with initial_Z = 0 that some mass
fractions get assigned to very small, but negative numbers.  We (still)
need to check for this and attempt to fix it in the code.  In the meantime,
you can try to set initial_Z to a small positive number in your inlist and
you should have no trouble evolving the model from there.


On Mon, Jun 4, 2012 at 11:40 PM, Leonardo Santos <laugustogs at gmail.com>wrote:

> Hi all,
> I'm new into MESA, and I can't get mesa star started. I'm following the
> guide "how to use MESA star", and it gets stuck when creating a work
> directory for my current project (right before step 1).
> When I type ./rn, it gives this this error (after printing some info on
> variables):
> *create pre-main-sequence model*
>> *                                   xa(i)           4
>> -1.0074785033543474D-18*
>> * failed in build_pre_ms_model*
>> * star_create_pre_ms_model ierr          -1*
>> * do_load1_star ierr          -1*
> Everything has been going (fairly) smooth so far, I installed MESA using
> Townsend's SDK. I'm using *Ubuntu 10.04 32-bits*.
> Any suggestions to get it right?
> Thanks in advance,
> Leonardo
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