[Mesa-users] rel_run_E_err Warning

[Erica Sawczynec]

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

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