Sparse matrix

[himkt]

Hi, I tried to create a 300k * 300k matrix to find that sparse matrix is not supported in NArray.

Is there a plan to implement ?

[masa16]

I have no plan to implement sparse matrix. Contributions are welcome.

[himkt]

I see.
Thanks for replying !

[ohai]

In python, the dense matrix code and the sparse matrix code are completely separated (numpy and scipy.sparse).

Since the sparse matrix codes and the dense matrix codes have probably no common implementation, I think that it would be better to put the sparse matrix code into a separated namespace.

[masa16]

Numo::GSL::SpMatrix was implemented.
http://ruby-numo.github.io/gsl/doc/Numo/GSL/SpMatrix.html

It is nice if there is an interface to cuSPARSE:
https://developer.nvidia.com/cusparse

[kojix2]

We have this project, but it is not active.
https://github.com/mrkn/numo-sparse