On Thu, Jun 27, 2019 at 9:38 AM Mikail Yayla <mikail.yayla@xxxxxxxxxxxxxx> wrote: > > Hello, > > I would like to compile a random forest model with g++. > The model has a depth of 20, with 25 trees (for the code, see > https://github.com/myay/RF). > The code of the model is generated such that the code of every tree is > inserted subsequently, thus we have a file with around 500000 lines of code. > The model however cannot be compiled with any of the optimizations enabled > (-O3, O2, etc.), as the compilation does not terminate and the system may > become unresponsive because the ram is filled by the compilation. > Without the optimizations flag, the compilation succeeds normally. > Does anyone know why the optimizations flag cannot be used in this case ? > > Best, > Mikail I do a random forest that's over a gigabyte of if statements. It takes about 4 hours to compile, but it does complete (-O3, -march=native). Adding more memory helps a lot. I use C, though, not C++.
