Hi Alejandro, > Do you know about an option or something that could help in this case? No, sorry. Your problem exceeds my experience. > I've read something about compilers and this high memory usage could be caused by keeping references to variables of other blocks (compilation units, IIRC). So if there is a way to disable that optimizations (tried -fno-unit-at-a-time and max-pending-list-length=1), and to make it the most "linear" as possible, it would help (if there are such additional things I missed). > Or should I ask this more specific question in another place? I think this is the best (and correct) forum for your question. Sincerely, --Eljay