Difference in calculation between versions 5 and version 6.1.

July 29, 2016

Q: Difference in calculation between versions 5 and version 6.1.
Just installed 6.1 and it looks like there is a difference between results between previous versions. Is there a reason for this?

A: With version 6.1 , we significantly improved the processing speed of the Monte Carlo simulations through data optimization, which means we now require far less memory), algorithm improvements, and multi-processing. It is the multi-processing that is the cause of the slight variation in results. Because iterations are now being performed on multiple threads, the order in which they occur has changed with slightly impacts the results. However, for purposes of project risk analysis, the impact is not significant as seen in the comparison below.

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