Re: [eigen] vectorization of sum

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On Mon, Jun 23, 2008 at 10:08 AM, Benoît Jacob <jacob@xxxxxxxxxxxxxxx> wrote:
> Hi,
> I looked at general vectorization of redux but this is not very convenient...

yes I can easily beleive that..

> - the final reduction step producing a scalar is not available in general,
> only in the special case of the sum is it available as ei_predux...

note that we can easily add ei_predux like functions for
min/max/mul... then we add a flag to the functor to know if a
packetRedux method is available or not....

> So instead, I'm now looking at splitting sum away from Redux, and vectorizing
> it.
> Cheers,
> Benoit

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