can i cancel the "drools incremental score calculation"?

[chen jinhua]

Hi, everytime!

in my project, I need to calculate the score at 0/0/0 every time. In drools, I write like the following, my goal is to stop the solving processing when total-mytarget >=0.

slot{

x,

y,

PlanningVariable

son()

}

son(){

x,y

}

solution {

score ,

slotList

sonList(),

scoremanger.....

}

slot's x and y is changed according to son's "x" and "y".

global HardMediumSoftScoreHolder scoreHolder;

rule "test"
when
$total:Integer() from accumulate(Slot($x:getX(),$y:Son().getY()),
init(int total =0;),
action(total+=$x*$y;),
result(total))
then
scoreHolder.addSoftConstraintMatch(kcontext,$total-mytarget);
end

in my code and running situation, in the same function:

when I call the solution.getScore(), it returns the score which is calculated incrementally for example 0/0/80. 0/0/80 meets my goal that's ok. And then, i call the "ScoreExplanation<Solution, HardMediumSoftScore> scoreExplanation = scoreManager.explainScore(solution); " . The score of the solution is changed, and the score is 0/0/-140 now. After calculating, I found that the "0/0/-140" is right. 

although the score is changed to 0/0/-140,  the processing is stopped because of the appearance of 0/0/80. 

Therefore, I think I have 2 ways to solve this problem, one is to clear the score before is sub or add; two is to calculate the solution score globally every time instead of incremental.

[Lukáš Petrovický]

Hey there,

if the solver is giving you a different score than the ScoreManager, that is a strong indication that you have a score corruption in your constraints. I suggest you run the solver with <environmentMode>FULL_ASSET</> to prove or disprove that.

Regards!

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Lukáš Petrovický

He/Him/His

Principal Software Engineer, Business Automation

lukas.pe...@redhat.com    IM: triceo/lpetrovi

My work week is Monday to Thursday.

[Lukáš Petrovický]

My apologies for the typo, it was supposed to be <environmentMode>FULL_ASSERT</>.

[chen jinhua]

thanks for Lukáš’s reply, i will try later and feedback.😂

Lukáš Petrovický <lpet...@redhat.com> 于2021年12月9日周四 下午3:34写道：

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