Re: F35 Change: Memory Constraints macros for RPM (System-Wide Change proposal)

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On Tue, Aug 10, 2021 18:53:35 +0100, Ankur Sinha wrote:
> On Thu, Aug 05, 2021 09:01:14 +0200, Miroslav Suchý wrote:
> > Dne 05. 08. 21 v 2:42 Michel Alexandre Salim via devel napsal(a):
> > > This is now implemented on Rawhide; Fedora updates are in testing:
> > 
> > Where is it documented?
> > 
> > I suggest one of these
> > 
> > https://rpm-packaging-guide.github.io/
> > https://docs.fedoraproject.org/en-US/packaging-guidelines/
> 
> That would be great. I was trying to put %limit_build at the top of my
> spec and kept getting errors. Then I looked at the mcrouter spec and
> realised this needs to go into the %build section XD
> 
> python-graph-tool is another one of the memory hungry packages. I'm just
> running a scratch build now and will let you know how it goes :)

So graph-tool uses about 15G per thread. On setting this using
%limit_build, I ran into a situation where the number of CPUs was set to
0 (and so the build failed):
https://kojipkgs.fedoraproject.org//work/tasks/8791/73638791/build.log

Should the minimum value of the number of CPUs be set to 1 perhaps?

Currently, I'm trying:

> %if %{?_smp_build_ncpus} == "0"
> # Uses the latest value set by -j
> echo "Building with 1 CPUs"
> %make_build -j1
> %else
> echo "Building with %{?_smp_build_ncpus} CPUs"
> %make_build
> %endif


-- 
Thanks,
Regards,
Ankur Sinha "FranciscoD" (He / Him / His) | https://fedoraproject.org/wiki/User:Ankursinha
Time zone: Europe/London

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