Re: [eigen] GitLab migration is starting now! yade is on gitlab too! (fixed URLs, fast ccache)

["Janek Kozicki (yade)" <jkozicki-yade@xxxxxxxxx>]

Ah, when cloning libeigen I also cloned your settings that pipelines
are not visible to everyone. So you could not see that actually
thanks to ccache the compilation time was reduced from 1 hour to 15
minutes.

You can see this now :)

first compile+tests: 1 hour: https://gitlab.com/cosurgi/eigen/pipelines/100984912
second ccached compile+tests, 15 minutes: https://gitlab.com/cosurgi/eigen/pipelines/100999796

best regards
Janek


Janek Kozicki (yade) said:     (by the date of Thu, 5 Dec 2019 19:36:36 +0100)

> 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
> 
> 
> 
> -- 
> --
> Janek Kozicki, PhD. DSc. Arch. Assoc. Prof.
> Gdańsk University of Technology
> Faculty of Applied Physics and Mathematics
> Department of Theoretical Physics and Quantum Information
> --
> http://yade-dem.org/
> http://pg.edu.pl/jkozicki (click English flag on top right)
> 
> 


-- 
--
Janek Kozicki, PhD. DSc. Arch. Assoc. Prof.
Gdańsk University of Technology
Faculty of Applied Physics and Mathematics
Department of Theoretical Physics and Quantum Information
--
http://yade-dem.org/
http://pg.edu.pl/jkozicki (click English flag on top right)