allow calculations to be grouped into a super calculation

[mikofski]

Thanks @anomam for this GREAT 🎉 idea 💡

Similar to:

• Easy repeated calculations #75 - calculator that repeats calculations
• investigate asynchronous and concurrent processes for carousel simulations and formulas #21 - use dag to determine when calculations are concurrent
• allow data source to accept input from another data source #42 - data source made from other data sources

why

For repeat calculations, if there are several calculations that should be repeated then looping or even using map will take longer if done individually for each calculation than if the calculations can be grouped

EG: There might be 3 calculations that are done for all layouts and inverter blocks.

• tracking
• plane of array irradiance
• power

Looping 3 times will take longer than just looping once.

dag magic

Since repeat calculations are independent, then having a super calculator and an easy way to repeat them (ie a special map calculator) could be coordinated with the DAG, so that in the future, carousel knows or can distributed them to multiple machines or processes.

just like data

• This idea is somewhat similar to the idea of nesting data.
• Also in order to pass the arguments to a group of calculators, it might be easier to use a nested source of data used for each of the sub-calculations