Re: [eigen] GitLab migration is starting now! yade is on gitlab too!

[Joel Holdsworth <joel@xxxxxxxxxxxxxxxxxxx>]

Should Eigen be pre-built as a PCH? I would imagine that could speed 
things up  a lot.

On 12/5/19 6:36 PM, Janek Kozicki (yade) wrote:
> Hi,
>
> I am developer of YADE, https://gitlab.com/yade-dev and I want to add
> high precision support in our entire codebase. Unfortunately I have
> been getting eigen segfaults in my tests. More about that in another email.
>
> I want to talk a little about your gitlab migration :)
>
> I use libeigen since roughly 2007. That's the first time however when
> I need to fix something in libeigen, and I can't do that without a
> working CI. The simplest compilation in gitlab-CI pipeline for me is
> to use the debian build scripts. And I created a
> super-simple .gitlab-ci, just to see a working pipeline:
>
> https://gitlab.com/cosurgi/eigen/merge_requests/1
> https://gitlab.com/cosurgi/eigen/pipelines/100984912
>
> All tests passed (around line 3480):
> https://gitlab.com/cosurgi/eigen/-/jobs/370818226#L3481
>
> you might want to have a look at eiher that small simple .gitlab-ci
> in that branch, or the full-blown .gitlab-ci which I use in yade all
> the time:
>
> https://gitlab.com/yade-dev/trunk/blob/master/.gitlab-ci.yml
> https://gitlab.com/yade-dev/trunk/pipelines/100789929
>
> I am using ccache for yade compilation, it speeds up things really a
> lot. I did the same thing in that small .gitlab-ci which I prepared for my
> tests of libeigen.
>
> I triggered a second libeigen compilation. The first one took 1hour. The
> second one, thanks to ccache took only 14 minutes:
>
> https://gitlab.com/cosurgi/eigen/pipelines/100999796
> https://gitlab.com/cosurgi/eigen/pipelines
>
> best regards
> Janek Kozicki