Re: [eigen] Eigen containers cannot be vectorized

[Christoph Hertzberg <chtz@xxxxxxxxxxxxxxxxxxxxxxxx>]

Well the bad thing about your proposal is that it would break our ABI 
and could make several index computations more complicated (I guess the 
latter will not make much difference, though).
As we want to guarantee ABI-stability for 3.x as much as possible, I 
don't see your proposal happening before 4.0 (for which there are 
absolutely no plans yet).

Christoph


On 2016-12-08 14:46, Francois Fayard wrote:
> It is indeed a solution.
>
> The nice thing about the solution I propose is that it could also work “out of the box”.
>
> François Fayard
> Founder & Consultant - Inside Loop
> Applied Mathematics & High Performance Computing
> Tel: +33 (0)6 01 44 06 93
> Web: www.insideloop.io
>
> > On Dec 8, 2016, at 2:43 PM, Joseph Mirabel <joseph.mirabel@xxxxxxx> wrote:
> >
> > Hi,
> >
> > what about this:
> >
> > #include <Eigen/Dense>
> >
> > void f(Eigen::Matrix<Eigen::Index, Eigen::Dynamic, Eigen::Dynamic>& A) {
> >  const Eigen::Index cols = A.cols();
> >  const Eigen::Index rows = A.rows();
> >  for (Eigen::Index j = 0; j < cols; ++j) {
> >    for(Eigen::Index i = 0; i < rows; ++i) {
> >      A(i, j) = i + j;
> >    }
> >  }
> > }
> >
> > Best rgds,
> > Joseph

--
 Dipl. Inf., Dipl. Math. Christoph Hertzberg

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