[mesa-users] 1M_pre_ms_to_wd

[Willie Strickland]

Here you go.  I meant to include it in the previous message.  Thanks for the prompt.

I would be interested in any comments about choices in the inlist and their effectiveness or affect on accuracy that anyone would like to provide.

The original inlist was from a test case about 3 years back or perhaps which I downloaded from mesastar.  I have then added various items which I found in other test cases which seemed relevant to me.  My method was to add one thing at a time and see if it appeared to reduce the number of errors (typically failed to converge) and if so how was the speed of the run affected.  As Bill pointed out, the problems usually seemed to occur late in the RGB or during early helium burning.

The last tweeks I made were back in June, when I did a series of tests mostly with the varcontrol and mesh options.  I would test a change to each individually as well as to both at the same time.  I got the best results throughout the evolution to WD using the listed values.

Willie

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> On Oct 19, 2015, at 3:18 PM, Francis Timmes <fxt44 at mac.com> wrote:
> 
> hi willie,
> 
> will your share your ?less accurate? inlist for the 1M sun case with carl and i?
> 
> fxt
> 
> 
> 
>> On Oct 19, 2015, at 2:26 AM, Willie Strickland <cwskas at gmail.com> wrote:
>> 
>> I have run the test case to which Bill refers (1M_pre_ms_to_wd) many times to various stopping points including all the way to WD.  
>> 
>> I primarily use this test and the work directory (15M star on which you built your inlist) anytime I install a new version of MacOS or of MESA.  I compare the results to previous runs to make sure the final profile and final model are in agreement and I also pay attention to the time taken to run.
>> 
>> I cannot attest to the astrophysical accuracy of my results, but would be happy to share specifics with the mailing list for evaluation if that would be helpful.
>> 
>> After installing El Capitan, I started with a pre-main sequence model and ran to WD in 58 minutes and 29 seconds on my 4 year old, 2 core i7 MacBook Pro specifying 4 threads.  Attached is the Grid8 plot from the final model.
>> 
>> My inlist does have some modifications which I have found helpful in running my tests, but may not be as accurate.
>> 
>> Willie
> 
>