yade-dev team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxxxxxx>]

Awesome.
Years ago we were using cholmod without the eigen interface, it will be 
a revert...
These cholmod/openblas issues make me nervous (not mentionning other 
attempts with Pardiso and Taucs, which all worked at some point). It 
still did not stabilize after 6+ years.

Do you think the GPU solver has benefits even with a standard graphical 
card, by the way?
Cheers
Bruno


On 02/12/2018 06:52 PM, Robert Caulk wrote:
> Yes! We should be able to replace the Eigen cholmod interface entirely 
> with the existing direct cholmod solver (useSolver=4). Right now the 
> #ifdefs are configured for the special GPU build but I will generalize 
> it today and commit it so that it can be used without GPU compilation 
> flags. Cholmod is smart enough to revert to CPU on its own if GPU is 
> not available.
>
> I will install 18.04, test the solver, and report back with my 
> findings today.
>
> Best,
>
> Robert
>
> On Mon, Feb 12, 2018 at 1:22 AM Bruno Chareyre 
> <bruno.chareyre@xxxxxxxxxxxxxxx 
> <mailto:bruno.chareyre@xxxxxxxxxxxxxxx>> wrote:
>
>     Thank you very much for help Janek.
>     I confirm that I could compile trunk on ubuntu18 with CGAL,
>     without special steps (not even dpkg, just cmake+make without
>     options).
>     For DEM-PFV-check.py the problem is with the cholmod solver. I'll
>     try and fix that.
>
>     @Robert, you mentioned that by-passing the eigen interface to use
>     cholmod directly solved issues on your side IIRC.
>     Could you give more hints about that, do you have some candidate
>     code for commit?
>
>     Cheers
>
>
>     Bruno
>
>
>     On 02/11/2018 12:33 PM, janek_listy@xxxxx
>     <mailto:janek_listy@xxxxx> wrote:
> >     OK, so I did the initial commit for cgal 4.11, the most
> >     importatnt stuff is in the commit message. I will repeat it here
> >     in short:
> >
> >     1.  maybe the #ifdefs that I added in
> >     lib/triangulation/RegularTriangulation.h are not necessary?
> >
> >     2. the ALPHASHAPES changes inlib/triangulation/Tesselation.h are
> >     not related to cgal, but I couldn't compile without this.
> >
> >     3. In checkPolyhedraCrush.py this python line freezes:
> >          O.run(250, True); checkForcesBodies(25.44893, 4)
> >
> >     Moreover:
> >     4. with this patch yade is compiling successfully with cgal 4.9
> >     and 4.11.
> >
> >     5. regardless of cgal version (with 4.9 and 4.11) I have this
> >     error in DEM-PFV-check.py:
> >
> >       running:  DEM-PFV-check.py
> >       DEM-PFV: unbalanced Qin vs. Qout ( -0.00279199571618  vs.  0.0 )
> >       DEM-PFV: difference in permeability: 27.9199571618  vs. target 
> >     0.040399916554
> >       The difference is more, than the critical tolerance!
> >       DEM-PFV: difference in final pressure: 0.0  vs. target 
> >     628.314160434
> >       The difference is more, than the critical tolerance!
> >       DEM-PFV: difference in final deformation -0.00430506304298  vs.
> >     target  -0.00258113045083
> >       The difference is more, than the critical tolerance!
> >       Status: FAILURE!!!
> >
> >     Since it does not depend on cgal version, it must be some other
> >     library that I have on my workstation. I have here installed
> >     devuan ascii, and I only backported cgal 4.11 from devuan ceres.
> >     All other libraries are at their default devuan ascii version.
> >
> >     6. Also  yade version is clean, right from github :) Just to make
> >     it all clear. However I could not compile yade just by doing the
> >     usual
> >
> >       cd .. ; mkdir build ; cd build
> >       cmake -DCMAKE_INSTALL_PREFIX=../install ../trunk -DDEBUG=1
> >     -DCHUNKSIZE=5
> >       time nice -n 20 make install -j 20 ; xmessage "\nFinished\n"
> >
> >     I had some boost errors related to the C++11 declytype support,
> >     eg. as discussed in:
> >     http://www.boost.org/doc/libs/1_66_0/libs/utility/utility.htm
> >     At first I was worried that g++ 6.3 is too old. However I found
> >     out that I can compile yade 2018-02 if I copy the ./debian/
> >     directory from yade 2017-01 and do:
> >
> >        time dpkg-buildpackage -rfakeroot -b -j30
> >
> >     So it must not be related to compiler version, but rather to
> >     compiler flags. And Anton fixed this in debian/ build rules,
> >     while my command could not make it correctly. I didn't figure
> >     this out yet. Last night I was simply building yade 2018-02 with
> >     debian/ from yade 2017-01 :)
> >
> >     best regards
> >     Janek
> >
> >
> >     Dnia 9 lutego 2018 18:46 Anton Gladky <gladky.anton@xxxxxxxxx
> >     <mailto:gladky.anton@xxxxxxxxx>> napisał(a):
> >
> >         Yes, it should be OK.
> >
> >         Anton
> >
> >
> >         2018-02-09 16:06 GMT+01:00 Bruno Chareyre
> >         <bruno.chareyre@xxxxxxxxxxxxxxx
> >         <mailto:bruno.chareyre@xxxxxxxxxxxxxxx>>:
> >
> >             What is an appropriate system to try this? ubuntu 18.04
> >             beta is ok?
> >             B
> >
> >
> >             On 02/08/2018 07:35 PM, Janek Kozicki (yade-dev) wrote:
> >
> >
> >                 Hi Anton and Bruno,
> >
> >                 I am glad that I can help, and use this opportunity
> >                 to get back in track
> >                 ;) So I will do this entire Saturday after I get back
> >                 home on friday night.
> >
> >                 Should I work on latest yade trunk?
> >
> >                 BTW: I'm writing this from an airport ;)
> >
> >                 Best regards,
> >                 Janek
> >
> >                 On 8 Feb 2018, 19:10 +0100, Anton Gladky
> >                 <gladky.anton@xxxxxxxxx
> >                 <mailto:gladky.anton@xxxxxxxxx>>, wrote:
> >
> >
> >                     Hi Bruno,
> >
> >                     CGAL_ 4.11 is the only version now for Debian
> >                     (testing) [1]
> >                     and upcoming Ubuntu 18.04 [2]. The shipped Yade does
> >                     not support CGAL due to compilation problems.
> >
> >                     I am preparing the new Yade upload, but we have a
> >                     chance
> >                     to patch the Yade within the next two weeks or
> >                     prepare
> >                     the 2018.02b release with CGAL-support and upload it.
> >
> >                     [1] https://tracker.debian.org/pkg/cgal
> >                     [2] https://launchpad.net/ubuntu/+source/cgal
> >
> >                     Anton
> >
> >
> >                     2018-02-08 18:45 GMT+01:00 Bruno Chareyre
> >                     <bruno.chareyre@xxxxxxxxxxxxxxx
> >                     <mailto:bruno.chareyre@xxxxxxxxxxxxxxx>>:
> >
> >
> >                         Hi Anton,
> >                         Thank you very much.
> >                         I'm not so sure what we are speaking about here.
> >                         Yade 2018.02a is the candidate source code
> >                         for producing a binary
> >                         yade-stable in Ubuntu 18.04, correct
> >                         (approximately)?
> >                         If yes, can we build yade-stable with CGAL at
> >                         the moment?
> >                         Bruno
> >
> >
> >
> >                         On 02/08/2018 06:35 PM, Anton Gladky wrote:
> >
> >
> >
> >                             Well, if we find a way to fix it within
> >                             the next 2 weeks,
> >                             I think there is a chance to get it
> >                             pushed into Debian->Ubuntu.
> >
> >                             Regards
> >
> >                             Anton
> >
> >
> >                             2018-02-08 15:23 GMT+01:00 Bruno Chareyre
> >                             <bruno.chareyre@xxxxxxxxxxxxxxx
> >                             <mailto:bruno.chareyre@xxxxxxxxxxxxxxx>>:
> >
> >
> >
> >
> >                                 On 02/07/2018 05:35 PM, Janek Kozicki
> >                                 (yade-dev) wrote:
> >
> >
> >
> >
> >                                     Regarding compiling yade with
> >                                     CGAL 4.11, I can look into it on
> >                                     Saturday,
> >                                     if my last patches didn't work
> >                                     for you?
> >
> >
> >
> >                                 I did not test it yet I'm afraid. :-/
> >                                 It sounds like a critical issue for a
> >                                 18.04 release. Is it?
> >                                 Would that mean to skip the whole
> >                                 CGAL related code in the binary
> >                                 release?
> >                                 I'll go back to this asap, thanks for
> >                                 pinging.
> >
> >                                 Bruno
> >
> >
> >
> >
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