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[cellml-discussion] ABI CellML Meeting Minutes, 21st April 2010


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  • From: alan.garny at dpag.ox.ac.uk (Alan Garny)
  • Subject: [cellml-discussion] ABI CellML Meeting Minutes, 21st April 2010
  • Date: Fri, 23 Apr 2010 12:42:33 +0100
But aren't or, rather, shouldn't ICs be provided by the model developer? Or
is it the case that you want to be able to determine the ICs, should the
model developer not have provided some? Then again, if no ICs have been
provided, then this would be a shortcoming of the model, and rather than
trying to determine some ICs, we should try to get the ICs from the model
author. Just thinking 'aloud', so sorry if I am missing something obvious
here (not least because I have never 'played' with DAEs myself).

Alan

> -----Original Message-----
> From: cellml-discussion-bounces at cellml.org [mailto:cellml-discussion-
> bounces at cellml.org] On Behalf Of Randall Britten
> Sent: 23 April 2010 12:35
> To: CellML Discussion List
> Subject: Re: [cellml-discussion] ABI CellML Meeting Minutes, 21st April
2010
>
> DAEs are a little more complex, it isn't always obvious which unknowns
> require initial conditions, or how to ensure ICs are consistent.
>
> Regards,
> Randall
>
> On 23/04/2010, at 8:50 PM, "Alan Garny" <alan.garny at dpag.ox.ac.uk>
> wrote:
>
> > Sorry, one more (non-OpenCell) comment:
> > - "... the biggest problem is using IDA's default solver for initial
> > conditions..." -- What is exactly meant by solver for initial
> > conditions? Do you mean that you are trying to use IDA to determine
> > what the initial value of the state variables should (i.e. like those
> > 99 guesses in the original OpenCell DAE solver?)? I would think/hope
> > not (I thought we had 'agreed' to provide the initial conditions to
> > the solver?).
> >
> > Alan
> >
> >> -----Original Message-----
> >> From: cellml-discussion-bounces at cellml.org [mailto:cellml-discussion-
> >> bounces at cellml.org] On Behalf Of Dougal Cowan
> >> Sent: 22 April 2010 21:19
> >> To: CellML Discussion List
> >> Subject: [cellml-discussion] ABI CellML Meeting Minutes, 21st April
> >> 2010
> >>
> >> I have put the minutes from this week's meeting up at:
> >>
> >> http://www.cellml.org/community/meeting/minutes/2010/04.21
> >>
> >> Thanks,
> >> Dougal
> >>
> >> _______________________________________________
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> >
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