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Creating a Macro That will Run Solver Multiple Times

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    Creating a Macro That will Run Solver Multiple Times

    Hello,
    I am using solver to get the smallest SSE in an intricate model (it involves varying three variables). Unfortunately, it seems that sometimes running the solver more than once yields different results with varying accuracy. Can someone help me develop a macro that would have a constrain of running solver for a predetermined number of runs to arrive to an optimum answer (the minimum SSE). Note, I will be copying the worksheet multiple times, so it would be great if the macro runs in the sheet itís executed in.
    In advance I really appreciate the help,

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    Re: Creating a Macro That will Run Solver Multiple Times

    Unfortunately, it seems that sometimes running the solver more than once yields different results with varying accuracy
    Not having seen your model it is a bit difficult to suggest some useful hints but have you tested running the "Evolutionary" model and under "Options" -> "Evolutionary" tab changed the value in the tick box marked "Maximum Time without improvement" from 30 seconds to say 60 or a 100?

    Rerunning Solver using GRG or Simplex it's normally better to change "constrain_precision" or "convergences". You can also add the result of the target cell to be a constraint i.e. less than given value.

    Alf

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