bugGNU Octave - Bugs: bug #61706, genetic algorithm returns...


bug #61706: genetic algorithm returns nonsensical values when logged out

Submitter:  None
Submitted:  Mon 20 Dec 2021 06:04:33 PM UTC
Category:  Octave Forge Package Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Need Info Assigned to:  None
Originator Name:  Originator Email:  -email is unavailable-
Open/Closed:  * Open Release:  * 6.3.0
Operating System:  * Microsoft Windows
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Tue 21 Dec 2021 07:19:14 AM UTC, comment #2: 

Octave isn't real-time capable. Maybe your OS's thread manager sets programs into an "energy saving" state when you lock out that slows down your calculations?
If that is the case, I'm not sure if there is anything Octave can't do about this.

You could maybe try changing your OS energy settings or changing the priority of the Octave process and check if that makes any difference.

Markus M├╝tzel <mmuetzel>
Project Member
Mon 20 Dec 2021 07:24:17 PM UTC, comment #1: 

Do you have a less complicated objective function that doesn't use columns?

Mon 20 Dec 2021 06:04:33 PM UTC, original submission:  

I am currently working with the genetic algorithm of the package attached you will find some code that I used. the thing is once I lcok my account (Ctrl+Alt+Del) or even when the display shuts off the program returns complete nonsense. i.e. continuosly values above the declared time limit. once I log in the values are returned without fault
additionally I have :
-extended the used function for dimensions greater than 2 (attached as well)
-modified _ga_problem_.m in line 22 to state.StartTime=clock(), declared state.Time in the following line with zero(1,6), set state.Time with etime(clock(),state.StartTime)
-altered the TimeLimit in line 31 of _ga_stop_.m to state.Time and
-edited output.time to state.Time in l. 36 of _ga_problem_return_variables_.m

Has any of the maintainers any idea as to who this behaviour occurs?



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Attach Files:

Attached Files
file #52540:  Rastringin_ga.m added by None (2KiB - application/octet-stream)
file #52541:  N_Rastringin.m added by None (135B - application/octet-stream)


Depends on the following items: None found

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  • -email is unavailable- added by mmuetzel (Posted a comment)
  • -email is unavailable- added by None (Submitted the item)

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2021-12-21 mmuetzel StatusNone Need Info
    2021-12-20 None Attached File- Added Rastringin_ga.m, #52540
        Attached File- Added N_Rastringin.m, #52541

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