[Mesa-users] Switching MESA-r9798 to the newest version r24.3.01

[Ebraheem Farag]

Hello Kit,

Please share your inlists or some sort of output comparison (perhaps attach
txt files of the terminal output from both of your runs or the logs or a
pgstar) if you want comment. It's nearly impossible to speculate otherwise
except to say that the current version of MESA is much more careful  in a
variety of respects and takes extra solver iterations to ensure
good numerical convergence with respect to previous versions including the
use energy conservation to maintain numerical accuracy (something not done
in mesa-r9798). Much of this is documented in MESA IV
<https://ui.adsabs.harvard.edu/abs/2018ApJS..234...34P/abstract> and MESA V
<https://ui.adsabs.harvard.edu/abs/2019ApJS..243...10P/abstract>.

-EbF

On Mon, Jul 15, 2024 at 6:40 AM Kit Yu Lau via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> Dear all,
>
> I used the most updated version of mesa to run X-ray bursts. Comparing
> with the old version (mesa-r9798) . It is much slower. I spent 10 days for
> the new version to get 2 bursts but the old version I spent 3 days to get 5
> bursts. All the input files are the same for both versions. Is there any
> way to speed up the new version? Thank you very much.
>
> Regards,
> Rita Lau
>
> On Wed, Jun 19, 2024 at 1:48 PM Frank Timmes <fxtimmes at gmail.com> wrote:
>
>> hi rita,
>>
>> mesa has always used an evolving patchwork of eos modules to cover the
>> rho-t plane. this eos patchwork for recent versions is shown in figure 7
>> of section 4 in mesa vi (jermyn et al 2023), also described at
>> https://docs.mesastar.org/en/release-r24.06.1-rc1/eos/overview.html
>> <https://urldefense.com/v3/__https://docs.mesastar.org/en/release-r24.06.1-rc1/eos/overview.html__;!!IKRxdwAv5BmarQ!YEDGoBxIue5Bt2R-BRTkPSG-6fl2vcTcqMub_4ovLO-Q0TQt9hld6JxESGO8MaIX13vdzJfkkDBMN5Tyzs2O_6pMof9Osw$> with
>> inlist controls at
>> https://docs.mesastar.org/en/release-r24.06.1-rc1/eos/defaults.html#eos-module-controls
>> <https://urldefense.com/v3/__https://docs.mesastar.org/en/release-r24.06.1-rc1/eos/defaults.html*eos-module-controls__;Iw!!IKRxdwAv5BmarQ!YEDGoBxIue5Bt2R-BRTkPSG-6fl2vcTcqMub_4ovLO-Q0TQt9hld6JxESGO8MaIX13vdzJfkkDBMN5Tyzs2O_6qY4lMFmA$> . the
>> current eos patchwork cannot be easily changed to the eos patchwork used in
>> 2017 for r9798.
>>
>> fxt
>>
>>
>>
>>
>>
>> On Jun 17, 2024, at 11:23 PM, Kit Yu Lau via Mesa-users <
>> mesa-users at lists.mesastar.org> wrote:
>>
>> Hi everyone,
>>
>> I was using mesa-r9798 and I am switching to the newest version. However,
>> there was no eos in mesa-r9798. I think I was using helm_table.dat for the
>> old version. How do I change the newest version to use the same eos? I
>> tried not to command anything in eos and it seems that it is using
>> eos_free. How do I change the eos to helm_table.dat? Thank you very much.
>>
>> Regards,
>> Rita
>> _______________________________________________
>> mesa-users at lists.mesastar.org
>> https://lists.mesastar.org/mailman/listinfo/mesa-users
>> <https://urldefense.com/v3/__https://lists.mesastar.org/mailman/listinfo/mesa-users__;!!IKRxdwAv5BmarQ!YEDGoBxIue5Bt2R-BRTkPSG-6fl2vcTcqMub_4ovLO-Q0TQt9hld6JxESGO8MaIX13vdzJfkkDBMN5Tyzs2O_6oc-vzPzw$>
>>
>>
>> _______________________________________________
> mesa-users at lists.mesastar.org
>
> https://urldefense.com/v3/__https://lists.mesastar.org/mailman/listinfo/mesa-users__;!!IKRxdwAv5BmarQ!YEDGoBxIue5Bt2R-BRTkPSG-6fl2vcTcqMub_4ovLO-Q0TQt9hld6JxESGO8MaIX13vdzJfkkDBMN5Tyzs2O_6oc-vzPzw$
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.mesastar.org/pipermail/mesa-users/attachments/20240715/9c65a123/attachment.htm>