[Yade-dev] multicore speed / threads issues

2010-04-28 Thread Janek Kozicki
My PC has 8 cores, 2*Opteron 2378. I have been testing speed with different number of cores. And to my surprise I must tell you, that when more than 5 cores are used - the speed drastically drops down! For instance with 4 cores is is steady 200it/sec. On 6-8 cores it is 1 it/sec, and occasionally

Re: [Yade-dev] Video on yade-dem.org - awesome.

2010-04-28 Thread Janek Kozicki
I was investigating current yade code whole yesterday. To document on that, I have made a video of every single example that “works”. http://geo.hmg.inpg.fr/~janek/yade-videos/ I must tell you, that yade, after two years, is simply jaw-dropping. In my wildest dreams I wouldn't expect it to be

[Yade-dev] [Bug 398176] Re: mess in examples, scripts, doc dirs

2010-04-28 Thread Janek Kozicki
oops. I've just sent a list of broken scripts as another bug. Meybe I should have added it here... -- mess in examples, scripts, doc dirs https://bugs.launchpad.net/bugs/398176 You received this bug notification because you are a member of Yade developers, which is subscribed to Yade. Status in

[Yade-dev] [Bug 571522] [NEW] list of broken scripts as of bzr 2185

2010-04-28 Thread Janek Kozicki
Public bug reported: Listing them all should at least help remembering about fixing them ;) If you think that I should list them in separate bug reports, then I can do that, just tell me to. trunk/scripts/test, bzr 2185 Running script Dem3DofGeom.py Traceback (mo

[Yade-dev] [Bug 571487] [NEW] qt.createVideo - 'module' object has no attribute 'createVideo'

2010-04-28 Thread Janek Kozicki
Public bug reported: method described in https://yade-dem.org/wiki/New:Making_videos from yade import qt qt.createVideo('/tmp/player.sqlite','/tmp/player.ogg', '/tmp/qglviewerState.xml',stride=10,fps=12) gives: Yade [1]: from yade import qt Yade [2]: qt.createVideo('/tmp/player.sqlite','/tmp

[Yade-dev] Redirecting of yade.wikia.com

2010-04-28 Thread Janek Kozicki
Hello, I own the yade.wikia.com wiki, and we have finished moving away from wikia.com (sorry). Our university has set up a dedicated server, so that we can host whole wiki without advertisements. The new address of our wiki is https://yade-dem.org Whole content of http://yade.wikia.com is alr

Re: [Yade-dev] slipToDisplacementTMax meaning

2010-04-28 Thread Václav Šmilauer
> I do not clearly understand the method slipToDisplacementTMax(). > We should use it only when Fs>mu*Fn? What is mu? You give limit strain (the only argument) and changes epsT so that it has at most this magnitude (doesn't change direction); if it is smaller, it just returns. The way you compute l

Re: [Yade-dev] incremental formulation normal force

2010-04-28 Thread chiara modenese
On 28 April 2010 19:44, Bruno Chareyre wrote: > > >> To be more precise, we could compute incrementally the work done by the >> springs in the systems more than the elastic energy. Almost in the same way >> as we get the dissipated energy due to friction (it is not too difficult to >> make distin

Re: [Yade-dev] incremental formulation normal force

2010-04-28 Thread Bruno Chareyre
To be more precise, we could compute incrementally the work done by the springs in the systems more than the elastic energy. Almost in the same way as we get the dissipated energy due to friction (it is not too difficult to make distinction between work and energy if we think that work is d

Re: [Yade-dev] incremental formulation normal force

2010-04-28 Thread chiara modenese
On 28 April 2010 17:39, chiara modenese wrote: > > > On 28 April 2010 16:44, chiara modenese wrote: > >> >> >> On 28 April 2010 16:19, chiara modenese wrote: >> >>> >>> >>> 2010/4/8 Václav Šmilauer >>> >>> > I need the incremental formulation for the normal force in the contact > law. Cou

Re: [Yade-dev] incremental formulation normal force

2010-04-28 Thread chiara modenese
On 28 April 2010 16:44, chiara modenese wrote: > > > On 28 April 2010 16:19, chiara modenese wrote: > >> >> >> 2010/4/8 Václav Šmilauer >> >> > I need the incremental formulation for the normal force in the contact >>> > law. Could you tell me how to do that? Should I simply used the >>> > norm

Re: [Yade-dev] incremental formulation normal force

2010-04-28 Thread chiara modenese
On 28 April 2010 16:19, chiara modenese wrote: > > > 2010/4/8 Václav Šmilauer > > > I need the incremental formulation for the normal force in the contact >> > law. Could you tell me how to do that? Should I simply used the >> > normalVelocity component computed at contact as we do for the shear

Re: [Yade-dev] incremental formulation normal force

2010-04-28 Thread chiara modenese
2010/4/8 Václav Šmilauer > > I need the incremental formulation for the normal force in the contact > > law. Could you tell me how to do that? Should I simply used the > > normalVelocity component computed at contact as we do for the shear > > force? What about the sign convention? Should it rema

Re: [Yade-dev] Impossible to update velocity

2010-04-28 Thread Anton Gladky
Thanks, Vaclav! All is working now as it was previously. 2010/4/16 Václav Šmilauer > > This way is working, the previous one - not. > Sorry, I don't understand which one is which now. > > In any case, it should work as you originally did (modifying the > component in-place) now, without work

Re: [Yade-dev] Video on yade-dem.org

2010-04-28 Thread Bruno Chareyre
Perhaps Remi can comment on that? Bruno Anton Gladky a écrit : Thanks, Sergei, But I think it is better to have it on yade-dem.org server and other people can download it instead of watching flash-player of their browser. __ Anton Gladkyy

[Yade-dev] slipToDisplacementTMax meaning

2010-04-28 Thread Anton Gladky
Hi all, I do not clearly understand the method slipToDisplacementTMax(). We should use it only when Fs>mu*Fn? In this case we have slip, so we decrease Fs=mu*Fn, and we also have to make epsT like epsT = Fs/(CrossSection*E)? Is slipToDisplacementTMax() for the EpsT updating? Thank you. __

Re: [Yade-dev] Video on yade-dem.org

2010-04-28 Thread Anton Gladky
Ok, thanks. __ Anton Gladkyy 2010/4/28 Václav Šmilauer > > But I think it is better to have it on yade-dem.org server and other > > people can download it instead of watching flash-player of their > > browser. > > It is much simpler to have youtube take care of conv

Re: [Yade-dev] Video on yade-dem.org

2010-04-28 Thread Václav Šmilauer
> But I think it is better to have it on yade-dem.org server and other > people can download it instead of watching flash-player of their > browser. It is much simpler to have youtube take care of conversions, plus yo ucan add comments and so on. You can download videos from youtube (apt-get inst

Re: [Yade-dev] Different results with different number of threads

2010-04-28 Thread Anton Gladky
Thanks a lot for this explanation in details! __ Anton Gladkyy 2010/4/27 Václav Šmilauer > > Here https://bugs.launchpad.net/yade/+bug/394687/comments/26 > > You said: > > "...Just that everybody knows now that slightly different results are > > OK with openMP (diff

Re: [Yade-dev] Video on yade-dem.org

2010-04-28 Thread Anton Gladky
Thanks, Sergei, But I think it is better to have it on yade-dem.org server and other people can download it instead of watching flash-player of their browser. __ Anton Gladkyy 2010/4/28 Sergei D. > > > > > is it possible to upload video files from simulation on yad

Re: [Yade-dev] Video on yade-dem.org

2010-04-28 Thread Sergei D.
> > is it possible to upload video files from simulation on yade-dem server? > You can upload video to YouTube and put the link to wiki. -- Best regards, Sergei D. ___ Mailing list: https://launchpad.net/~yade-dev Post to : yade-dev@lists.launc

[Yade-dev] Video on yade-dem.org

2010-04-28 Thread Anton Gladky
Hi, is it possible to upload video files from simulation on yade-dem server? Thank you. __ Anton Gladkyy ___ Mailing list: https://launchpad.net/~yade-dev Post to : yade-dev@lists.launchpad.net Unsubscribe : https://laun