"remove" or "relax" limit imposed by using std::array

[llyr-who]

Problem

std::array is quite limited, in terms of size. On my machine (relative high end XPS), anything beyond a 500x500 matrix causes a seg fault. I think this is because we went beyond what is allowed on the stack. Can we split it up? Can we do something smart? Or shall we resort to a raw memory? (vectors are bad, we are already wrapping them so we can provide some safety)

Suggested Solution

One SS could be to split this up into matrix and tiny_matrix. tiny_matrix will continue to use std::array<T,N>'s and matrix would use T*. Note that we can use std array instead of C-style array because std::array is identical in performance and nicer to use. So use it.

Acceptance Criteria.

• Careful well-reasoned/justified implementation
• testing
• benchmarking