[sivoais]

Good ideas!

a)

A built-in way would be good. There is some work being explored in using OpenMP with Perl/PDL to get some of that. In the mean time, there is MCE which does distribute across processes and there are examples of using this with PDL <https://github.com/marioroy/mce-cookbook#sharing-perl-data-l...>, but I have not had an opportunity to use it.

b)

Output for a spreadsheet would be difficult if I understand the problem correctly. This would more about creating a mapping of PDL function names to spreadsheet function names --- not all PDL functions exist in spreadsheet languages. It might be possible to embed or do IPC with a Perl interpreter like <https://www.pyxll.com/>, but I don't know about how easy that would be to deploy when distributing to users.

Am I understanding correctly?

Interestingly enough, creating a mapping of PDL functions would be useful for other reasons, so the first part might be possible, but the code might need to be written in a certain way that makes writing the dataflow between cells easier.