Switch chemistry scheme

Go to tab Chemistry, select the Switch chemistry scheme option and pick the new chemistry scheme from the Available schemes popup menu (1). Then click Recompile (2). Note that for the first time the compilation of the chemistry scheme could take a long time, and that means a looong time, like hours. This does depend on the optimization in the makefile (by default OPTI=O2), which you can change yourself by editing the makefile if you want*. However, once this is done, switching to this scheme the next time is much faster, since the compiled objects are store in build/[Your_chemistry_name] directory, and are not recompiled unless the actual source code is changed or the "Clean everything before compilation" option is checked.

*) OPTI=O0 or OPTI=O1 give shorter compiling time, but will run slower. Use OPTI=O2 for faster runs but expect for compilation that might take hours depending on the size of the chemistry.