[Mesa-users] Termination issues with hydrogen burn in 1M star

[Warrick Ball]

Hi Kaitlyn,

> ... to the `&controls` part of the inlist.

My mistake: this should be added to the `&star_job` part of the inlist, not `&controls`.

Cheers,
Warrick

___________

Warrick Ball
Senior Research Software Engineer
University of Birmingham
W.H.Ball at bham.ac.uk

On Wed, 19 Jul 2023, Warrick Ball wrote:

> Hi Kaitlyn,
>
> The "Killed" message is usually a sign that MESA has run out of RAM.  If 
> possible, try to increase the amount of RAM available to the emulator.  The 
> system should have at least 8GB available to it, though you might get by okay 
> with 6GB.
>
> Alternatively, you can try adding the control [1]
>
>    num_steps_for_garbage_collection = 1000 ! default 0, might need even less
>
> to the `&controls` part of the inlist.  It looks like you're crashing on the 
> main sequence, though, which isn't usually heavy on RAM, so you might find 
> you need to decrease this to 100, or perhaps even 50.  MESA will run more 
> slowly (it'll pause to drop then reload the equation of state tables) but 
> should hopefully crash less.
>
> Cheers,
> Warrick
>
> [1] 
> https://docs.mesastar.org/en/release-r23.05.1/reference/star_job.html#num-steps-for-garbage-collection
>
> ___________
>
> Warrick Ball
> Senior Research Software Engineer
> University of Birmingham
> W.H.Ball at bham.ac.uk
>
> On Wed, 19 Jul 2023, Kaitlyn L via Mesa-users wrote:
>
>>  CAUTION: This email originated from outside the organisation. Do not click
>>  links or open attachments unless you recognise the sender and know the
>>  content is safe.
>>  Hi,
>>  I've been running the 1M_pre_to_wd code from the mesa-r23.05.1 test suite
>>  and am repeatedly getting the following error:
>>
>>  write
>>  /home/kaitlynliang/mesa-r23.05.1/data/eosDT_data/cache/mesa-FreeEOS_02z30x.bin
>>  ./rn1: line 6:  1142 Killed                  ./star
>>  DATE: 2023-07-19
>>  TIME: 15:13:28
>>
>>  ******************************************************************
>>  failed to create end_core_h_burn.mod when running
>>  inlist_to_end_core_h_burn_header
>>  ******************************************************************
>>
>>  Surprisingly, start.mod gets written to disk, but crashes before
>>  end_core_h_burn.mod is written to disk. 
>>
>>  MESA is being run inside a Ubuntu emulator running on top of Windows 10 HP
>>  Laptop. I'm a highschool student working with an experienced MESA user,
>>  but neither of us can figure it out. 
>>
>>  Thank you,
>>  -Kaitlyn Liang
>>
>> 
>> 
>
>