[Mesa-users] Error Code on MESA version mesa-r8845

Rob Farmer r.j.farmer at uva.nl
Wed Oct 11 12:03:42 EDT 2017


Hi
Please send messages via the mesa-users list other people may be able to
help you.

There are many tools available here
http://cococubed.asu.edu/mesa_market/add-ons.html for plotting mesa data

As to  your roche lobe plot i cant help help you.

Rob

On 10 October 2017 at 22:57, seblu humne <seblu1557 at gmail.com> wrote:

> Dear professor. Rob Farmer,
> First, I would like to appreciate you for your  support MESA error
> finding.!!! Then
> please can you help me on how to plot the MESA output profiles.data and
> history.data by using python or jupyter notebook and how to plot the Roche
> lobe overflow, which i was attached figure of it  to you?
>
> Thanks in advance
>
> cheers,
>
> Seblu Humne Negu
>
> On Mon, Oct 9, 2017 at 8:07 AM, Rob Farmer <r.j.farmer at uva.nl> wrote:
>
>> Hi
>>
>> The problem is a real bug, what happens is this: you have a fixed
>> abundance xmin and xmax limits on your plots, so the plot range does not
>> change as the star looses its outer layers. As the star looses it outer
>> layers the labels on the abundance plot disappear as the outer layer moves
>> inwards beyond where they would be plotted. For this model though when the
>> third label should disappear we generate a NaN which is what crashes the
>> run.
>>
>> The quick solution is to replace these lines in your inlist_pgstar:
>>
>>          Abundance_xmin = 0.0d0 ! only used if /= -101d0
>>          Abundance_xmax = 0.7d0 ! only used if /= -101d0
>>
>> with:
>>
>>          !Abundance_xmin = 0.0d0 ! only used if /= -101d0
>>          !Abundance_xmax = 0.7d0 ! only used if /= -101d0
>>
>> This way the labels never disappear and we don't hit this bug.
>>
>> In future please send a starting model we can start closer to the point
>> when mesa crashes, and not spend time waiting for the model to evolve.
>>
>> Rob
>>
>>
>>
>>
>>
>>
>>
>> On 9 October 2017 at 09:10, seblu humne via Mesa-users <
>> mesa-users at lists.mesastar.org> wrote:
>>
>>> Dear all Mesa Users,
>>>
>>> I thanks all users, that to  exchange their ideas on  MESA manipulation
>>> for Astronomy and Astrophysics, especially on Stellar Evolution and
>>> Structure.
>>> Hence, I am doing on Binary stars and mass transfer in these systems. In
>>> dong so
>>> currently i am using mesa-r8845, so that when i was running the codes
>>> inside
>>> /home/usr/mesa-r8845/binary/test_suite/binary_both_stars, to find the
>>> mass transfer rate, the following errors are displayed:
>>>
>>>
>>> png/track2_002295.png/png
>>>  png/pbvsm1002295.png/png
>>>
>>> Program received signal SIGSEGV: Segmentation fault - invalid memory
>>> reference.
>>>
>>> Backtrace for this error:
>>> #0  0x7F4A9D3FBD37
>>> #1  0x7F4A9D3FAF30
>>> #2  0x7F4A9C4B0CAF
>>> #3  0x7F4A9E60614F
>>> #4  0x7F4A9E5E4C20
>>> #5  0x7F4A9E5E7C50
>>> #6  0x7F4A9E5E7958
>>> #7  0x7F4A9E5EDCF5
>>> #8  0x7F4A9E5FCD29
>>> #9  0x66D398 in abundance_line at pgstar_abundance.f90:338
>>> #10  0x66D838 in do_all at pgstar_abundance.f90:262
>>> #11  0x66E291 in plot at pgstar_abundance.f90:225
>>> #12  0x66E4A5 in __pgstar_abundance_MOD_do_abundance_plot at
>>> pgstar_abundance.f90:78
>>> #13  0x68BD6C in __pgstar_grid_MOD_grid_plot at pgstar_grid.f90:448
>>> #14  0x68E609 in __pgstar_grid_MOD_grid1_plot at pgstar_grid.f90:61
>>> #15  0x5604C1 in __pgstar_MOD_onscreen_plots at pgstar.f90:1427
>>> #16  0x56066F in __pgstar_MOD_do_pgstar_plots at pgstar.f90:1293
>>> #17  0x4423CD in __run_star_support_MOD_after_step_loop at
>>> run_star_support.f90:540
>>> #18  0x4143F2 in __run_binary_support_MOD_do_run1_binary at
>>> run_binary_support.f90:613
>>> #19  0x410ECD in __run_binary_MOD_do_run_binary at run_binary.f:21
>>> #20  0x410EDE in binary_run at binary_run.f:4
>>> ./rn: line 8: 17972 Segmentation fault      (core dumped) ./binary
>>> DATE: 2017-10-07
>>> TIME: 19:05:20
>>>  So how can i correct this problem, especial how to set   let say
>>> "saved_model_name = 'M1.9_3Gyr.mod" and the codes that i was used are
>>> attached as:
>>>
>>> Thanks in advance
>>> Cheers,
>>> Seblu Humne Negu
>>> PhD candidate At Ethiopian Space Science and Technology institute
>>>
>>>
>>
>
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