Thank you for your answer. I find the most time consuming process in compiling a file is the optimization of the cgraph nodes (execute all_passes), This process is sequence, one node by one node. If we divide the cgraph nodes into unrelated forest, we can parallel it, is this way feasible?
Thank you. -----邮件原件----- 发件人: Markus Trippelsdorf [mailto:mar...@trippelsdorf.de] 发送时间: 2014年7月29日 16:21 收件人: Gengyulei (Gengyl) 抄送: gcc@gcc.gnu.org 主题: Re: Is there any possibility to parallel compilation in a single file? On 2014.07.29 at 08:07 +0000, Gengyulei (Gengyl) wrote: > Hi: > > Is there any possibility to parallel the compilation in a single file > scope? For large application the compilation time is long, although > we can parallel the process at the level of files, we still try to > find a way to accelerate the compilation in a single file. Can we > change some serial process into > > Parallel? Could you give me some advices? Thank you very much. Compiling with -flto=<number of cores> and gcc-4.9 should help. -- Markus
