Vensim v6 crashes when attempting Stochastic Optimisation

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bkruger@iafrica.com
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Posts: 26
Joined: Thu Mar 13, 2003 5:53 am
Vensim version: DSS

Vensim v6 crashes when attempting Stochastic Optimisation

Post by bkruger@iafrica.com »

I apply Vensim on a Windows 7 machine and recently installed the Vensim 6 Beta.
This afternoon I tried to implement the new Stochastic Optimisation option to an existing and well-used subscripted vineyard model.

After a few error messages I appeared to succeed in getting the optimisation and sensitivity control texts right - but Vensim crashes after initiating the optimisation, with the typical Windows 7 "..program has stopped operating" error message.

Am I experiencing a beta problem, or should I experiment some more with the control dialogues?
The optimisation is aimed at optimising 8 constants, all of which are subscripted, though I have limited the amount of subscripts to 2 for the test run.
bkruger@iafrica.com
Member
Posts: 26
Joined: Thu Mar 13, 2003 5:53 am
Vensim version: DSS

Re: Vensim v6 crashes when attempting Stochastic Optimisatio

Post by bkruger@iafrica.com »

Vensim 6 accepted the control dialogues for stochastic optimisation after a reboot of Win7.

I assume the problem to have been a beta instability (?)

The optimisation works quite well!!
tomfid
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Posts: 3811
Joined: Wed May 24, 2006 4:54 am

Re: Vensim v6 crashes when attempting Stochastic Optimisatio

Post by tomfid »

There was a bug in the output dialog in the initial release - you might want to download the latest 6.0.0.1 which was posted last Thursday or so.

Tom
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