OptaPlanner development

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Narayana Khadri3

Oct 12

(Modified vehicle routing Delivering petroleum products to fuel stations) - Dynamic number of planning variable

Thanks, Geoffrey for the answer to this question in StackOverflow https://stackoverflow.com/questions

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(Modified vehicle routing Delivering petroleum products to fuel stations) - Dynamic number of planning variable

Thanks, Geoffrey for the answer to this question in StackOverflow https://stackoverflow.com/questions

Oct 12

Vilmos Nagy, … Geoffrey De Smet11

Oct 11

OptaPlanner multi-threaded solution hangs

Hi Geoffrey, TBH: We've put the project on hold where we used OptaPlanner a couple of months ago.

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OptaPlanner multi-threaded solution hangs

Hi Geoffrey, TBH: We've put the project on hold where we used OptaPlanner a couple of months ago.

Oct 11

Oct 9

partition search threads seems hang, can not finish all the partition search.

reason: In multi Threads, custom move factory may cause thread hanging. 在2021年10月9日星期六 UTC+8 上午10:17:

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partition search threads seems hang, can not finish all the partition search.

reason: In multi Threads, custom move factory may cause thread hanging. 在2021年10月9日星期六 UTC+8 上午10:17:

Oct 9

Oct 9

I wonder how the Partitioned search final merge to one solution

Hi,anyone can help?I come across a problem when I use the partitioned search.I implement a

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I wonder how the Partitioned search final merge to one solution

Hi,anyone can help?I come across a problem when I use the partitioned search.I implement a

Oct 9

Quân Hồ, … Osamu Kuniyasu4

Oct 1

Problems regarding shadow variable and adding entities dynamically.

I solved (1) by spliting timeslots into individual timegrains. Calculating start + stop is now very

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Problems regarding shadow variable and adding entities dynamically.

I solved (1) by spliting timeslots into individual timegrains. Calculating start + stop is now very

Oct 1

Sep 30

About the parallel solving by multiple Thread？

Hi, ，guys！ Current I try to solve problems like the following： 1. get a dateset，for example, 4000

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About the parallel solving by multiple Thread？

Hi, ，guys！ Current I try to solve problems like the following： 1. get a dateset，for example, 4000

Sep 30

James Nebeker, Geoffrey De Smet2

Sep 27

Control number of trucks used in VRP

You can't add vehicles while solving, so you 'll need to provision vehicles you'd rather

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Control number of trucks used in VRP

You can't add vehicles while solving, so you 'll need to provision vehicles you'd rather

Sep 27

wru...@gmail.com, Geoffrey De Smet3

Sep 17

How can I use optaplanner with Python for worker rostering?

Now you can! https://pypi.org/project/optapy/ On Friday, August 12, 2016 at 2:47:01 PM UTC+2 Geoffrey

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How can I use optaplanner with Python for worker rostering?

Now you can! https://pypi.org/project/optapy/ On Friday, August 12, 2016 at 2:47:01 PM UTC+2 Geoffrey

Sep 17

Qiang Gao, Jiří Locker3

Sep 15

How to understand Loop Detection in Section 20.3.3.2?

Jiri , thanks for your reply and update. When a loop was detected in my model, setting shadow

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How to understand Loop Detection in Section 20.3.3.2?

Jiri , thanks for your reply and update. When a loop was detected in my model, setting shadow

Sep 15

chen jinhua, Geoffrey De Smet3

Sep 14

Hi, what's the default “LocalSearchType”？

thanks, I had tried. Users should set just one property--acceptor or LocalSearchType. If you set the

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Hi, what's the default “LocalSearchType”？

thanks, I had tried. Users should set just one property--acceptor or LocalSearchType. If you set the

Sep 14

Geoffrey De Smet, Kent Zhang3

Sep 9

Anyone want to improve the OptaPlanner Wikipedia entry?

Thanks Kent :) With kind regards, Geoffrey De Smet On 09/09/2021 12:11, Kent Zhang wrote: Hi Geoffrey

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Anyone want to improve the OptaPlanner Wikipedia entry?

Thanks Kent :) With kind regards, Geoffrey De Smet On 09/09/2021 12:11, Kent Zhang wrote: Hi Geoffrey

Sep 9

zhou sam, Lukáš Petrovický3

Sep 8

Problems caused by dependency on package Xerces

Hello, it appears that the problem is entirely unrelated to OptaPlanner: https://stackoverflow.com/

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Problems caused by dependency on package Xerces

Hello, it appears that the problem is entirely unrelated to OptaPlanner: https://stackoverflow.com/

Sep 8

Sep 6

An alternative for chained variables? Coming soon...

Hey community, I'm working on a new type of planning variable that works with a List<E>

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An alternative for chained variables? Coming soon...

Hey community, I'm working on a new type of planning variable that works with a List<E>

Sep 6

Geoffrey De Smet

Sep 6

Community article: Vehicle Routing Problem with Pick and Delivery using OptaPlanner and Quarkus.

Vehicle Routing Problem with Pick and Delivery using OptaPlanner and Quarkus: https://www.linkedin.

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Community article: Vehicle Routing Problem with Pick and Delivery using OptaPlanner and Quarkus.

Vehicle Routing Problem with Pick and Delivery using OptaPlanner and Quarkus: https://www.linkedin.

Sep 6

袁野, Geoffrey De Smet2

Aug 26

About Generator VRP dataset

I suspect the "working directory" of your run process isn't set correctly. Check your

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About Generator VRP dataset

I suspect the "working directory" of your run process isn't set correctly. Check your

Aug 26

Aug 26

Re: [optaplanner-dev] Re: can not use two algorithm in a acceptor at the same time

Thanks for reporting, this is caused by the XSD enforcing a certain order of elements. I will update

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Re: [optaplanner-dev] Re: can not use two algorithm in a acceptor at the same time

Thanks for reporting, this is caused by the XSD enforcing a certain order of elements. I will update

Aug 26

James Nebeker, Osamu Kuniyasu4

Aug 15

VRP Modification

> 1) Make vehicle capacity a time It would be better if both Vehicle and Customer could make typed

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VRP Modification

> 1) Make vehicle capacity a time It would be better if both Vehicle and Customer could make typed

Aug 15

Kent Zhang, Lukas Petrovicky3

Jul 29

How to balance the distance of vehicles?

Got it, thank you Lukáš , I will look into these methods. On Wednesday, July 28, 2021 at 2:43:12 PM

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How to balance the distance of vehicles?

Got it, thank you Lukáš , I will look into these methods. On Wednesday, July 28, 2021 at 2:43:12 PM

Jul 29

jh chen, … Geoffrey De Smet10

Jul 29

Hi，how to complie optaplanner locally？

thanks, it works!!(*￣︶￣) 在2021年7月28日星期三 UTC+8 下午6:04:21<gds.geoffr...@gmail.com> 写道： I've

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Hi，how to complie optaplanner locally？

thanks, it works!!(*￣︶￣) 在2021年7月28日星期三 UTC+8 下午6:04:21<gds.geoffr...@gmail.com> 写道： I've

Jul 29

Narayana Khadri, Christopher Chianelli4

Jul 28

How to handle must have conditions

If you know exactly what lessons to remove, simply do not include them in the PlanningSolution.

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How to handle must have conditions

If you know exactly what lessons to remove, simply do not include them in the PlanningSolution.

Jul 28

Aleksandrs Saveljevs, Lukas Petrovicky2

Jul 28

Easy score calculation vs Drools score calculation for VRP problems

Hello Aleksandrs, On Wed, Jul 28, 2021 at 2:21 PM Aleksandrs Saveljevs <aleksandrs.saveljevs@gmail

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Easy score calculation vs Drools score calculation for VRP problems

Hello Aleksandrs, On Wed, Jul 28, 2021 at 2:21 PM Aleksandrs Saveljevs <aleksandrs.saveljevs@gmail

Jul 28

Narayana Khadri, Lukas Petrovicky4

Jul 28

Implementing a custom Score

On Wed, Jul 28, 2021 at 3:07 PM Narayana Khadri <narayanakhadri@gmail.com> wrote: Any links to

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Implementing a custom Score

On Wed, Jul 28, 2021 at 3:07 PM Narayana Khadri <narayanakhadri@gmail.com> wrote: Any links to

Jul 28

Adalbert Schwafel, Kent Zhang4

Jul 22

Again: Local Search phase (1) needs to start from an initialized solution

Because in the CH phase, the score will not be improved. If the CH phase reaches the stop condition (

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Again: Local Search phase (1) needs to start from an initialized solution

Because in the CH phase, the score will not be improved. If the CH phase reaches the stop condition (

Jul 22

Adalbert Schwafel, Radovan Synek2

Jul 22

Review please: problem / domain model / constraints for astronomical observation scheduling

Hello, would you please provide the INFO logging output? It shows the score calculation speed. by

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Review please: problem / domain model / constraints for astronomical observation scheduling

Hello, would you please provide the INFO logging output? It shows the score calculation speed. by

Jul 22

Kent Zhang, Lukas Petrovicky6

Jul 15

A field was accessed by a rule but was not found in the class

Oh, that's really great, let me learn about it. Thank you, Lukas. On Thu, Jul 15, 2021 at 6:11 PM

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A field was accessed by a rule but was not found in the class

Oh, that's really great, let me learn about it. Thank you, Lukas. On Thu, Jul 15, 2021 at 6:11 PM

Jul 15

Carlo Baumann, Radovan Synek3

Jul 7

Job Application Problem

Hi Carlo, the "profileConstraint" does the exact opposite of what it's supposed to do

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Job Application Problem

Hi Carlo, the "profileConstraint" does the exact opposite of what it's supposed to do

Jul 7

Fabio Napoleoni, Osamu Kuniyasu2

Jun 22

OptaPlanner for booking system availabilities API

I've experienced a slightly similar use case. A service provider sales want to put a visit order

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OptaPlanner for booking system availabilities API

I've experienced a slightly similar use case. A service provider sales want to put a visit order

Jun 22

Andrej Rus, Geoffrey De Smet2

Jun 10

Scalability of optimization algorithms graphs

Linear by intent. Do note that these particular graphs are not build from actual measurements, but

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Scalability of optimization algorithms graphs

Linear by intent. Do note that these particular graphs are not build from actual measurements, but

Jun 10

Lovedeep Sangha, Mark Green2

Jun 8

How to create Fair assignment of shifts in Employee Rostering application

I think this is in the documentation. Add the highest number of shifts for a single employee, squared

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How to create Fair assignment of shifts in Employee Rostering application

I think this is in the documentation. Add the highest number of shifts for a single employee, squared

Jun 8

Frank Förster, Lukas Petrovicky4

Jun 8

Error message while multithreaded solving

On Tue, Jun 8, 2021 at 10:46 AM Frank Förster <fftsde@gmail.com> wrote: I will investigate your

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Error message while multithreaded solving

On Tue, Jun 8, 2021 at 10:46 AM Frank Förster <fftsde@gmail.com> wrote: I will investigate your

Jun 8

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