Bug#945041: openfoam: severe build time regression
On Thu, Dec 19, 2019 at 12:31:09AM -0600, Kurt Kremitzki wrote: > On Thursday, December 19, 2019 12:11:33 AM CST Adrian Bunk wrote: > > On Mon, Nov 18, 2019 at 10:17:10PM +0100, Julien Cristau wrote: > > > Source: openfoam > > > Version: 1906+dfsg1-1 > > > Severity: serious > > > > > > Hi, > > > > > > Looking at https://buildd.debian.org/status/logs.php?pkg=openfoam the > > > build time for your package increased unreasonably in this version. > > >... > > > > Something seems to be going wrong around parallel building, > > when trying locally only one core gets used now. > > Indeed, although the build logs state e.g. 'Compiling enabled on 4 cores', > only 1 core is ever used. However exporting the variables defined in debian/ > rules and following the same build steps in a shell results in a build which > does actually use the number of cores it reports, so I wasn't sure where to > proceed with troubleshooting it beyond that. I mentioned the issue to my > upstream contact as well who wasn't sure either given that it behaves as > expected in a shell but not in the build environment. wmake/wmake: ... if [ -n "$WM_NCOMPPROCS" ] then parOpt="-j $WM_NCOMPPROCS" if [ "$WM_NCOMPPROCS" -gt 1 -a -z "$MAKEFLAGS" ] then make="$make --no-print-directory $parOpt" fi fi ... The problem is that MAKEFLAGS is set to "w", as fix/workaround add in debian/rules: unexport MAKEFLAGS cu Adrian
Bug#945041: openfoam: severe build time regression
On Thursday, December 19, 2019 12:11:33 AM CST Adrian Bunk wrote: > On Mon, Nov 18, 2019 at 10:17:10PM +0100, Julien Cristau wrote: > > Source: openfoam > > Version: 1906+dfsg1-1 > > Severity: serious > > > > Hi, > > > > Looking at https://buildd.debian.org/status/logs.php?pkg=openfoam the > > build time for your package increased unreasonably in this version. > > > >... > > Something seems to be going wrong around parallel building, > when trying locally only one core gets used now. > Indeed, although the build logs state e.g. 'Compiling enabled on 4 cores', only 1 core is ever used. However exporting the variables defined in debian/ rules and following the same build steps in a shell results in a build which does actually use the number of cores it reports, so I wasn't sure where to proceed with troubleshooting it beyond that. I mentioned the issue to my upstream contact as well who wasn't sure either given that it behaves as expected in a shell but not in the build environment. > cu > Adrian
Bug#945041: openfoam: severe build time regression
On Mon, Nov 18, 2019 at 10:17:10PM +0100, Julien Cristau wrote: > Source: openfoam > Version: 1906+dfsg1-1 > Severity: serious > > Hi, > > Looking at https://buildd.debian.org/status/logs.php?pkg=openfoam the > build time for your package increased unreasonably in this version. >... Something seems to be going wrong around parallel building, when trying locally only one core gets used now. cu Adrian
Bug#945041: openfoam: severe build time regression
Source: openfoam Version: 1906+dfsg1-1 Severity: serious Hi, Looking at https://buildd.debian.org/status/logs.php?pkg=openfoam the build time for your package increased unreasonably in this version. Cheers, Julien
