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May 2014

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Subject:
From:
Sean Luke <[log in to unmask]>
Reply To:
MASON Multiagent Simulation Toolkit <[log in to unmask]>
Date:
Thu, 15 May 2014 13:54:33 -0400
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I just found and (I believe) fixed a race condition in SparseGrid2D, SparseGrid3D, Continuous2D, and Continuous3D which can cause certain methods to perform incorrectly when using multiple threads.  If your code is single-threaded (you're not using ParallelSequence), or you're not using the methods listed below, there's no problem.

Affected Sparse Grid methods: getObjectsAtLocation, numObjectsAtLocation, removeObjectsAtLocation 

Affected Continuous methods: getNearestNeighbors

If you just want the updated jar file, you can get it here:
	http://cs.gmu.edu/~sean/temp/mason.17.jar

Sean

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