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Initialization & Nelder-Mead Input

#7001  Permalink Top

Initialization & Nelder-Mead Input

Jun-02-16 12:20:51

Hi,

I suppose that Nelder Mead can't initialize big models at once. Does OM use BLT form + Tearing to reduce the number of optimization variables that Nelder-Mead handle each time?

Thanks in advance

#7002  Permalink Top

Re: Initialization & Nelder-Mead Input

Jun-02-16 12:29:14

As far as I know Nelder-Mead is no longer used to initialized simulations. It now uses a BLT sorting and symbolic pre-processing without this outer optimization phase.

#7003  Permalink Top

Re: Initialization & Nelder-Mead Input

Jun-02-16 12:34:04

You are right, Nelder is not available anymore.

But did the old implementation work in this way (BLT+Tearing+Nelder)?

Thanks

#7004  Permalink Top

Re: Initialization & Nelder-Mead Input

Jun-02-16 13:27:09

Yes, it did. It used the same equation system as for the simulation (including tearing).

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