[mesa-users] Excessive Runtime Terminates Evolution

[Willie Strickland]

I have come across similar miniscule timesteps in several runs recently and tried different variables to come up with a solution.  Your email motivated me to again work on that problem.

Here is how to get information on your mesa installation, assuming you have set the environment variable $MESA_DIR.

	svn info $MESA_DIR  |  grep "Revision"

You may also obtain helpful information by following the advice at the bottom of the page here.

	http://www.astro.wisc.edu/~townsend/static.php?ref=mesasdk

	… it would be helpful if you could post the output of the following commands:

		uname -a
		gfortran -v
		echo $MESASDK_ROOT
		echo $PATH

I have mesa installed at ~/mesa but I run all my models from ~/Documents/mesa/ so as not to modify the installation directory.  As is advised here.

	http://mesa.sourceforge.net/how_to_use_mesa_star.html

	"create a separate working directory rather than doing things in the star/test directory.
	The easiest way to set this up is to copy the star/work directory. You can put the copy
	anywhere you’d like and give it any name you’d like."

I have been running your inlists in a directory called ~/Documents/mesa/Presley which is a clone of ~/mesa/star/work but using your inlists instead of the originals.  I am making slight modifications including commenting out max_number_retries & max_number_backups as Josiah suggested and a few &star_job lines I prefer.

When I come up with an inlist that seems satisfactory I will send a follow-up email with it attached

I also have a folder called ~/Documents/mesa/scripts in which I keep various often used ruby and shell scripts for reference.  I am attaching one that I use to print the mesa information for my setup.  Therefore I can run it from any of my work directories using the command

	../scripts/mesa_installation_info.sh

Willie


On Jan 12, 2014, at 10:47 AM, Morgan Presley <mpresley at princeton.edu> wrote:

> I have been attempting to run many pre_ms_to_wd models for different initial masses and values of Reimers_wind_eta and Blocker_wind_eta. However, the models are regularly terminated with convergence problems for initial masses greater than or equal to 3 solar masses. 
> 
> As an example, I have attached the inlist and standard error and standard out files for a run with initial_mass = 1.0, and Reimers_wind_eta = Blocker_wind_eta = 1.0. 
> 
> I am running MESA on Springdale Linux release 6.5 (Pisa). I'm not sure how to find what version of MESA I am using, but based on when I installed it, I am likely running release 5329. 
> 
> I would greatly appreciate any advice regarding how to run these models to completion. Thanks for the help.
> 
> <inlist_1.0><stderr.log><stdout.log>------------------------------------------------------------------------------
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