From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15425 invoked by alias); 17 Apr 2013 19:36:52 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 15368 invoked by uid 48); 17 Apr 2013 19:36:49 -0000 From: "Joost.VandeVondele at mat dot ethz.ch" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/40958] module files too large Date: Wed, 17 Apr 2013 19:36:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: Joost.VandeVondele at mat dot ethz.ch X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 X-SW-Source: 2013-04/txt/msg01635.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40958 --- Comment #11 from Joost VandeVondele 2013-04-17 19:36:45 UTC --- With these patches in, parallel compilation of multi-file cp2k becomes significantly faster. Time for a full build goes from 70s to 50s. I think that in a parallel build the IO bottleneck (bandwidth) was significant, while this is now much improved. The effect will likely be even larger on mounted filesystems.