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Profile Bill F
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Message 77070 - Posted: 14 Apr 2024, 11:20:06 UTC

There are no Milkyway@home N-Body Simulation tasks available at this moment ...???

Is this intended or is there an issue to be resolved ?

Bill F
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Message 77071 - Posted: 14 Apr 2024, 11:52:30 UTC - in response to Message 77070.  

Currently there are only "Milkyway@home N-Body Simulation with Orbit Fitting tasks" available, which is basically a newer version of the N-Body application. Simply enable both, they use about same amount of memory and same amount of threads, so you shouldn't run into any issues, you might however need to update your app_config.xml if that's what you are using to limit the number of cores per task.
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Message 77076 - Posted: 15 Apr 2024, 13:04:29 UTC - in response to Message 77071.  

Currently there are only "Milkyway@home N-Body Simulation with Orbit Fitting tasks" available, which is basically a newer version of the N-Body application. Simply enable both, they use about same amount of memory and same amount of threads, so you shouldn't run into any issues, you might however need to update your app_config.xml if that's what you are using to limit the number of cores per task.


I hope they bring back the regular N-Body Simulation tasks, I'm almost to a milestone and would hate to miss it.
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Message 77077 - Posted: 15 Apr 2024, 18:24:01 UTC

Is there a source code available for the orbit fitting version of the nbody tasks? I would like to try it out on some ARM devices like Raspberry Pi 5 or something similar :)
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Profile Kevin Roux
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Message 77078 - Posted: 16 Apr 2024, 4:36:07 UTC - in response to Message 77076.  

Currently there are only "Milkyway@home N-Body Simulation with Orbit Fitting tasks" available, which is basically a newer version of the N-Body application. Simply enable both, they use about same amount of memory and same amount of threads, so you shouldn't run into any issues, you might however need to update your app_config.xml if that's what you are using to limit the number of cores per task.


I hope they bring back the regular N-Body Simulation tasks, I'm almost to a milestone and would hate to miss it.


There will be more tasks coming for N-body for Palomar 5. Not exactly sure what the timeline will be on that but probably sometime this summer.
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Profile Kevin Roux
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Message 77079 - Posted: 16 Apr 2024, 4:46:21 UTC - in response to Message 77077.  

Is there a source code available for the orbit fitting version of the nbody tasks? I would like to try it out on some ARM devices like Raspberry Pi 5 or something similar :)


https://github.com/Milkyway-at-home/milkywayathome_client
Version 1.86 is the version being used for the Orbit Fitting application.
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Message 77082 - Posted: 21 Apr 2024, 21:16:38 UTC - in response to Message 77077.  

When you make working app_info.xml post it here for future crunchers.
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Message 77084 - Posted: 22 Apr 2024, 8:06:26 UTC - in response to Message 77082.  

When you make working app_info.xml post it here for future crunchers.
You mean app_config.xml? No real need for that any longer since we can configure the number of cores per task on the website, I have only this left until they get the run time estimates fixed, than I will delete it completely:

<app_config>
 <app>
  <name>milkyway_nbody</name>
  <fraction_done_exact/>
 </app>
 <app>
  <name>milkyway_nbody_orbit_fitting</name>
  <fraction_done_exact/>
 </app>
</app_config>

However it only corrects the time left for running tasks, not for those in cache, but better than nothing.
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Message 77086 - Posted: 22 Apr 2024, 12:02:58 UTC

I mean for others who want to compile for ARM.
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