Selective compilation - Quartus II - Selective compilation - Quartus II Hi, I am designing my model in Quartus II but since my design has become too big it takes a lot of time to compile. I am running the compilation every time I make even the smallest of changes in a signle block. Is it possible to compile only the block which has been modified so I don't have to compile the whole design again and again? If yes, please let me know how. Thanks in advance. Replies: Re: Selective compilation - Quartus II Take a look at the incremental compilation feature. You set parts of your design as design partitions that you can choose to either compile or lock down at the next compilation.