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OptaPlanner

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New Blog: Visualizing an #OptaPlanner Vehicle Routing solution with Leaflet (OpenStreetMaps) and Google Maps
http://www.optaplanner.org/blog/2015/03/10/VisualizingVehicleRoutingWithLeafletAndGoogleMaps.html
After OptaPlanner finds the best solution for a Vehicle Routing Problem, users usually want to see it on a real map, such as Google Maps or OpenStreetMap. The optaplanner-webexamples.war for OptaPlanner 6.3 now demonstrates that. Visualization In the case below, I’ve solved a VRP problem with 50 locations and 8 vehicles and projected the best...
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How fast is logging in #java?
What's the impact of logging levels and console/file appenders?
What’s the cost of trace/debug logging in production? What’s the performance cost of logging to a file? In these benchmarks, I compare the performance impact of logging levels (error, warn, info, debug, trace) and logging appenders (console appender, file appender) on several realistic OptaPlanner use cases. Benchmark methodology Logging implementation: SFL4J 1.7.2 with Logback 1.0.9...
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OptaPlanner optimizes business resource usage. It is a lightweight, embeddable, open source planning engine, written in 100% Java.
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oVirt optimizes Virtual Machine scheduling with OptaPlanner - http://community.redhat.com/blog/2014/11/smart-vm-scheduling-in-ovirt-clusters/
In this article, I will talk about a new project we have just published as part of our oVirt 3.5 release. The new scheduler I am going to describe will enable you to perform non-trivial migration steps to utilize a cluster's resources better. The scheduler will also help you with starting a new VM that does not immediately fit any of your nodes. Introduction to oVirt Scheduling Before I get to the actual feature, I will describe how scheduling ...
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OptaPlanner 6.2.0.Beta3 released.
OptaPlanner optimizes business resource usage. It is a lightweight, embeddable, open source planning engine, written in 100% Java.
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OptaPlanner webinar next week (Wednesday 24-SEP) - free registration - http://www.redhat.com/en/about/events/how-solve-impossible-business-resource-planning-problems
Browse Knowledgebase articles, manage support cases and subscriptions, download updates, and more from one place. View users in your organization, and edit their account information, preferences, and permissions. Manage your Red Hat certifications, view exam history, and download ...
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OptaPlanner

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OptaPlanner 6.2.0.Final released!
- Giant leap for the Vehicle Routing Problem (Nearby Selection, TailChainSwapMove, shadow variable efficiency)
- Strategic Oscillation Tabu Search
- New example: Cheap time scheduling
- New benchmarker statistics
- and more
http://www.optaplanner.org/download/releaseNotes/releaseNotes6.2.html
New and noteworthy, demo's and status for OptaPlanner 6.2.
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Scaling the Vehicle Routing Problem above 1000 customers with Nearby Selection in OptaPlanner 6.2.
#orms #vrp #OptaPlanner
OptaPlanner 6.2 has made big step forward for the Vehicle Routing Problem (VRP), Traveling Salesman Problem (TSP) and similar use cases. The new feature nearby selection enables it to scale to bigger problems much more efficiently without sacrificing potential optimal solutions (which is common for inferior techniques). Let’s take a closer look at nearby...
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OptaPlanner 6.2.0.CR1 released
OptaPlanner optimizes business resource usage. It is a lightweight, embeddable, open source planning engine, written in 100% Java.
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Portuguese video of Alessandro's OptaPlanner presentation at QCon Brazil.
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In their circles
7 people
Have them in circles
316 people
Evgeny Tyazhev's profile photo
Mihai Lihatchi's profile photo
Chris Meier's profile photo
Alessandro Lazarotti's profile photo
Xu Macgaffin (Tim)'s profile photo
Bob Dickenson's profile photo
jbossauthority's profile photo
Shawn Chan's profile photo
OpenRemote's profile photo
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Do more business with less resources
Introduction
Optimizes planning problems (Java, open source, ASL) with heuristics and metaheuristics for normal Java developers.

Included algorithms:
  • Tabu Search
  • Simulated Annealing
  • Late Acceptance
  • First Fit (Decreasing)
  • Best Fit (Decreasing)
  • ...