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<div class="moz-cite-prefix">Op 05-02-13 11:22, Michiel Vermandel
schreef:<br>
</div>
<blockquote
cite="mid:1360059734.29166.YahooMailNeo@web161305.mail.bf1.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff; font-family:arial,
helvetica, sans-serif;font-size:10pt">Hi,<br>
<br>
Thanks for the advice.<br>
<br>
1) About drools 5.5.1-SNAPSHOT: It doens't seem to be in the
list of available distros:<br>
Eclipse > pom > Dependencies > Add > Search
results.<br>
After 5.5.0-Final I get the Alphas of 6.0.0.<br>
I'm not such a wiz in Maven.<br>
How do I get the 5.5.1-SNAPSHOT into my m2/Nexus repo?<br>
</div>
</blockquote>
Look for "the jboss snapshop repo" on google. See the URL I pasted.
Or look in the droolsjbpm-parent pom's <repository> section.<br>
<blockquote
cite="mid:1360059734.29166.YahooMailNeo@web161305.mail.bf1.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff; font-family:arial,
helvetica, sans-serif;font-size:10pt"><br>
<div><span>2) I'll do as you advised but here are already the
stats:</span></div>
<div style="color: rgb(0, 0, 0); font-size: 13.3333px;
font-family: arial,helvetica,sans-serif; background-color:
transparent; font-style: normal;"><span>I've got 260 planning
entities in my test</span></div>
About the planning variables: I have 3 different types of
planning variables but I do not use any default selector. Thus I
do not have Entities * Values of possible moves.<br>
</div>
</blockquote>
Normally, one should always also add a changeMoveSelector for every
variable (on top of the course grained moves), possibly with a
filter to avoid breaking build-in constraints. Try it with the
benchmarker.<br>
<blockquote
cite="mid:1360059734.29166.YahooMailNeo@web161305.mail.bf1.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff; font-family:arial,
helvetica, sans-serif;font-size:10pt">I reduce quite some moves
(I think/hope I do not eliminate the moves that could lead to
the optimal solution).<br>
For the 3 different variable types I have 5 MoveListFactories
and they produce for the 260 entities all together 8550 possible
moves.<br>
</div>
</blockquote>
<blockquote
cite="mid:1360059734.29166.YahooMailNeo@web161305.mail.bf1.yahoo.com"
type="cite">
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<div style="font-family: times new roman, new york, times,
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<div dir="ltr"> <font face="Arial" size="2">
<hr size="1"> <b><span style="font-weight:bold;">From:</span></b>
Geoffrey De Smet <a class="moz-txt-link-rfc2396E" href="mailto:ge0ffrey.spam@gmail.com"><ge0ffrey.spam@gmail.com></a><br>
<b><span style="font-weight: bold;">To:</span></b>
<a class="moz-txt-link-abbreviated" href="mailto:rules-users@lists.jboss.org">rules-users@lists.jboss.org</a> <br>
<b><span style="font-weight: bold;">Sent:</span></b>
Tuesday, February 5, 2013 9:35 AM<br>
<b><span style="font-weight: bold;">Subject:</span></b>
Re: [rules-users] Drools planner: The workingMemory has
1 ConstraintOccurrence(s) in excess<br>
</font> </div>
<br>
<div id="yiv500598723">
<div> <br>
<div class="yiv500598723moz-cite-prefix">Op 05-02-13
09:16, Michiel Vermandel schreef:<br>
</div>
<blockquote type="cite">
<div
style="color:#000;background-color:#fff;font-family:arial,
helvetica, sans-serif;font-size:10pt;">
<div><span>Hi,</span></div>
<div style="color:rgb(0, 0,
0);font-size:13.3333px;font-family:arial,
helvetica, sans-serif;
background-color:transparent;font-style:normal;"><br>
<span></span></div>
<div style="color:rgb(0, 0,
0);font-size:13.3333px;font-family:arial,
helvetica, sans-serif;
background-color:transparent;font-style:normal;"><span>I
am using Drools planner 5.5.0.Final.<br>
</span></div>
<div style="color:rgb(0, 0,
0);font-size:13.3333px;font-family:arial,
helvetica, sans-serif;
background-color:transparent;font-style:normal;"><span>Once
again I have the exception "The workingMemory
has 1 ConstraintOccurrence(s) in excess".</span></div>
<div>I have added all relevant planning variables as
parameters of the ConstraintOccurrence.<br>
<br>
Could the following theory be an explanation for
this issue? <br>
<br>
My dataset is not that big (not small either).<br>
Could it be that a certain move is taken twice
within the same step (as part of score trap?)
which results in the same constraint occurrence?<br>
</div>
</div>
</blockquote>
No, the same move twice in the same step should not
cause any trouble.<br>
If you can prove this causes the score corruption, it's
a bug in Drools Expert.<br>
There have been a bunch of bugfixes in drools, so try
drools (-core, -compiler, knowledge-api, mvel, ...)
5.5.0-SNAPSHOT:<br>
<a moz-do-not-send="true" rel="nofollow"
class="yiv500598723moz-txt-link-freetext"
target="_blank"
href="https://repository.jboss.org/nexus/content/groups/public/org/drools/drools-core/5.5.1-SNAPSHOT/drools-core-5.5.1-20130205.051201-93.pom">https://repository.jboss.org/nexus/content/groups/public/org/drools/drools-core/5.5.1-SNAPSHOT/drools-core-5.5.1-20130205.051201-93.pom</a><br>
If that doesn't help, paste the rule.<br>
<blockquote type="cite">
<div
style="color:#000;background-color:#fff;font-family:arial,
helvetica, sans-serif;font-size:10pt;">
<div><br>
I have one other question - maybe related:<br>
In my configuration I have this:<br>
<br>
<acceptor><br>
<planningEntityTabuSize>7</planningEntityTabuSize>
<!-- I tested with lower values (5, 3) too
--><br>
</acceptor><br>
<forager><br>
<pickEarlyType>FIRST_BEST_SCORE_IMPROVING</pickEarlyType><br>
<minimalAcceptedSelection>1000</minimalAcceptedSelection><br>
</forager><br>
<br>
Because of the forager configuration a step is
sometimes taken after as little as 40 moves, but
sometimes the number of moves grows to enormous
amounts.<br>
I think if that happens that the score is no
longer improving.<br>
Is it "normal" that a certain step can make +50k
moves and counting?<br>
</div>
</div>
</blockquote>
you're set at 1k minimalAcceptedSelection, so 50k is a
lot indeed.<br>
This is probably because the planningEntityTabuSize is
to high compared to the number of entity's in your
dataset.<br>
There's a jira for making planningEntityTabuSize
automatically adjust itself based on the entity size
(which would solve this).<br>
Or it could also be because the number of possible moves
(entity size * value size) is near 1k.<br>
<br>
<blockquote type="cite">
<div
style="color:#000;background-color:#fff;font-family:arial,
helvetica, sans-serif;font-size:10pt;">
<div>Or does indicate once more to a score trap?<br>
</div>
</div>
</blockquote>
No. It indicates that planner's config should scale down
automatically.<br>
How many entity's and values do you have?<br>
<blockquote type="cite">
<div
style="color:#000;background-color:#fff;font-family:arial,
helvetica, sans-serif;font-size:10pt;">
<div><br>
Thanks<br>
<br>
Michiel<br>
<br>
</div>
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