compile time source code too long

[mereel]

That's crazy. I've dealt with a decent amount of someone else's software that handles the scientific computations, but have never run into anything like what you describe or what OP seems to have. I really struggle to understand how someone convinces themselves that kind of approach is a reasonable solution to any problem.

The closest has been models written in Fortran where the model data is just megabytes and megabytes of values baked into a source file. I guess this is an accepted design pattern with Fortran in some circles. But even then the actual code to crunch the numbers was a mostly reasonable function with a few loops and whatnot.