HomeTechniques and Tips@RISK PerformanceSimulation Speed of @RISK with Microsoft Project

9.3. Simulation Speed of @RISK with Microsoft Project

Applies to:
@RISK 6.x/7.x, Professional and Industrial Editions
@RISK for Project, all releases

I recently upgraded from Microsoft Project 2003 to 2007 or 2010, and my simulations seem to take longer to run. Do I need to change some setting?

Recalculation speed has changed between versions of Microsoft Project, and this impacts the run times of @RISK simulations. Why? Because for each iteration of a simulation @RISK must fully recalculate Microsoft Project.

Recalculations are fastest in Microsoft Project 2003 and slowest in Microsoft Project 2007. Microsoft Project 2010 is an improvement over 2007, but still is substantially slower than Microsoft Project 2003. However, Project 2010 offers many new features over Project 2003, and Project 2003 can't support @RISK 7.x. If you have large projects in which simulation run time is an issue, use the fastest possible hardware configuration.

See also: For Faster Simulations

Last edited: 2015-07-14

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