[Mesa-users] rel_run_E_err Warning

[Francis Timmes]

hi erica,

for the first item, one can consider using

! silence energy warnings
     warn_when_large_rel_run_E_err = 1.0d99
     warn_when_stop_checking_residuals = .false.

fxt




> On May 1, 2020, at 12:45 PM, Erica Sawczynec <ericasaw at hawaii.edu> wrote:
> 
> Hi all!
> 
> I am working with the astero module using MESA 12115 and MESASDK 20190830. I am trying to model a star with individual pulsation frequencies, but I am running into a few problems:
>  1) Throughout each iteration (from pre-main sequence to within the error box) I noticed an energy conservation warning: "WARNING: rel_run_E_err". The warning continues even when fitting the seiesmic frequencies.   When looking through some of the documentation for MESA I noticed a few things that might help this error: a. using gold tolerances and b. using the dedt form of the energy eq. After turning both of these parameters on, the warning still appears. Further, to check it was not a problem with my particular inlist, I also ran the MESA test suit for example-astero and found the same warning all the way up the main sequence. 
> 
> 2) I am also having difficultly getting the astero module to stop modeling once the parameters have converged. I am unsure what parameters to change that will end the entire run. I have tried: changing the chi2 search limits, changing the number of simplex iterations, changing the sigmas_coeff values for all the parameters, and changing the chi2 relative increase limit. Right now I just plot all the output values from the simplex results file and wait until I see the values have converged before I end the run (see the image convergence.png).
> 
> Here is some information about my os:
> NAME="CentOS Linux"
> VERSION="7 (Core)"
> ID="centos"
> ID_LIKE="rhel fedora"
> VERSION_ID="7"
> PRETTY_NAME="CentOS Linux 7 (Core)"
> 
> Below I have attached a text file that shows the terminal outputs for my star on the main sequence to right before the astero module begins a new model with a different combination of starting parameters.
> I have also attached my inlist_astero and my inlist_astero_search_controls so you can see all the parameters that are set.
> 
> Thanks so much!
> Erica
> 
> <covergence.png><inlist_astero.txt><inlist_astero_search_controls.txt><terminal_output.txt>_______________________________________________
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