Added printing to eval_intra to get a feel for matrix sparsity. Sparser than I was expecting, suggesting a slightly different implementation with fewer reads would be better.
Added printing to eval_intra to get a feel for matrix sparsity.
Sparser than I was expecting, suggesting a slightly different
implementation with fewer reads would be better.

gnina/gnina,gnina/gnina,gnina/gnina,gnina/gnina,gnina/gnina,gnina/gnina