@DetermiedNim1 by itself this iterator will only generate a C pragma for openmp,
you need to\:
1. install dev version of `libgomp` - OpenMP library for gcc (on some systems it
comes with gcc)
2. add flags to compile and link with openmp\: `--passC:"-fopenmp"
--passL:"-fopenmp"`
3. use [--exceptions\:setjmp](https://github.com/nim-lang/Nim/issues/15703) with
ARC/ORC
4. turn off stacktraces and avoid garbage-collected seqs/strings inside a loop