Re: [Yade-users] [Question #680159]: About Yade Documentation, Release 2018-12-05

2019-04-10 Thread Bruno Chareyre
Question #680159 on Yade changed: https://answers.launchpad.net/yade/+question/680159 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, They are the default values, assigned by the constructor of Body. Bruno -- You received this question notification because y

Re: [Yade-users] [Question #680139]: rigid (gts)Pfacets?

2019-04-10 Thread Bruno Chareyre
Question #680139 on Yade changed: https://answers.launchpad.net/yade/+question/680139 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi Bettina, Yes, it is possible to clump pfacets, although not fully tested. I didn't read your script but I would say the prob

Re: [Yade-users] [Question #679543]: Is class `Bo1_Cylinder_Aabb` to be actually used?

2019-04-08 Thread Bruno Chareyre
Question #679543 on Yade changed: https://answers.launchpad.net/yade/+question/679543 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi guys, sorry to be late. Bo1_Cylinder_Aabb exists because the shape Cylinder (not chained) exists. Arguably there is no exam

Re: [Yade-users] [Question #679772]: viscous contribution in flow engine

2019-04-04 Thread Bruno Chareyre
Question #679772 on Yade changed: https://answers.launchpad.net/yade/+question/679772 Status: Open => Answered Bruno Chareyre proposed the following answer: The short answer: FlowEngine.shearLubrication = FlowEngine.normalLubrication=True. There is an alternate interaction model, but i

Re: [Yade-users] [Question #679566]: Some questions about simulating consolidated undrained triaxial test

2019-03-27 Thread Bruno Chareyre
Question #679566 on Yade changed: https://answers.launchpad.net/yade/+question/679566 Bruno Chareyre posted a new comment: > should strain rate technically depend on maintaining pore pressure equilibrium for a consolidated undrained test? No. In undrained tests pore pressure is a res

Re: [Yade-users] [Question #679428]: unable to display sphere with latest version

2019-03-22 Thread Bruno Chareyre
Question #679428 on Yade changed: https://answers.launchpad.net/yade/+question/679428 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, We are not actively testing builds on openSuse. The error message "Missing separate debuginfo for.." is not

Re: [Yade-users] [Question #679320]: squashing modelling

2019-03-19 Thread Bruno Chareyre
Question #679320 on Yade changed: https://answers.launchpad.net/yade/+question/679320 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, 1- Isn't it just scheme instability due to the timestep? Did you try a smaller one? > units of this parameter in yade Sam

Re: [Yade-users] [Question #679193]: About servo process of triaxialStressController engine

2019-03-14 Thread Bruno Chareyre
Question #679193 on Yade changed: https://answers.launchpad.net/yade/+question/679193 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, when there is no tolerance it is usually because the tolerance is zero. And in this case indeed the servo-control will do its b

Re: [Yade-users] [Question #679050]: GSTS gives an unstable dt?

2019-03-08 Thread Bruno Chareyre
Question #679050 on Yade changed: https://answers.launchpad.net/yade/+question/679050 Bruno Chareyre proposed the following answer: Funny question: you describe "A=[0,0,3.5]" as an amplitude of 3.5mm. How would you change the script for an amplitude of 3.5m? What about &qu

Re: [Yade-users] [Question #679050]: GSTS gives an unstable dt?

2019-03-08 Thread Bruno Chareyre
Question #679050 on Yade changed: https://answers.launchpad.net/yade/+question/679050 Bruno Chareyre proposed the following answer: One more option: it could be that timestep is ok wrt both numerical stability and velocity vs. diameter, with particles going through the plate due

Re: [Yade-users] [Question #678915]: weight of clump differs from sum of z-directional interaction forces

2019-03-08 Thread Bruno Chareyre
Question #678915 on Yade changed: https://answers.launchpad.net/yade/+question/678915 Bruno Chareyre posted a new comment: Hi, 1.10.0-72 is a bit old. It is difficult and ineffecient (for the developers at least) to discuss specific problems of old versions. I would suggest compiling current

Re: [Yade-users] [Question #678966]: Ubuntu 18.04.02&16.04.6

2019-03-06 Thread Bruno Chareyre
Question #678966 on Yade changed: https://answers.launchpad.net/yade/+question/678966 Bruno Chareyre posted a new comment: I don't understand why your sequence of commands seems to break apt-get. But anyway, everything should be fine if you reproduce the same sequence without "sudo ad

Re: [Yade-users] [Question #678966]: Ubuntu 18.04.02&16.04.6

2019-03-05 Thread Bruno Chareyre
Question #678966 on Yade changed: https://answers.launchpad.net/yade/+question/678966 Bruno Chareyre posted a new comment: Hi, The package yadedaily for 18.04 is broken unfortunately (or is it just me?). However you should be able to install "yade" (v2018.02b-1), which is almost as

Re: [Yade-users] [Question #678645]: Shrinkage of particles

2019-02-21 Thread Bruno Chareyre
Question #678645 on Yade changed: https://answers.launchpad.net/yade/+question/678645 Status: Open => Answered Bruno Chareyre proposed the following answer: >>>>> I used the grow.Particle() but it doesn't work >>>> do you mean growParticle(), or really gro

Re: [Yade-users] [Question #678645]: Shrinkage of particles

2019-02-21 Thread Bruno Chareyre
Question #678645 on Yade changed: https://answers.launchpad.net/yade/+question/678645 Bruno Chareyre proposed the following answer: Oh by the way, did you run the MWE before sending?... I guess not. This is a MWE; O.bodies.append(sphere((0,0,0),1)) print O.bodies[0].shape.radius growParticle

Re: [Yade-users] [Question #678558]: principle of contact detection about polyhedra

2019-02-14 Thread Bruno Chareyre
Question #678558 on Yade changed: https://answers.launchpad.net/yade/+question/678558 Bruno Chareyre proposed the following answer: @Jan >Also I have a long time this idea in my mind: implement tetrahedrons as >efficiently as possible and build generic polyhedron as a

Re: [Yade-users] [Question #678558]: principle of contact detection about polyhedra

2019-02-14 Thread Bruno Chareyre
Question #678558 on Yade changed: https://answers.launchpad.net/yade/+question/678558 Bruno Chareyre proposed the following answer: >my computer have 64 cores The real question is more how many of them you are using. If each single interaction needs complex operations then the ope

Re: [Yade-users] [Question #678464]: globUpdate in PeriTriaxController

2019-02-11 Thread Bruno Chareyre
Question #678464 on Yade changed: https://answers.launchpad.net/yade/+question/678464 Bruno Chareyre posted a new comment: >Does that mean it analyze stress, stiffness and unbalaced force every 5 steps? No. Stress is updated at every step anyway as soon as dynCell=True (your case). Br

Re: [Yade-users] [Question #678447]: Install Yadedaily ubuntu18.04

2019-02-11 Thread Bruno Chareyre
Question #678447 on Yade changed: https://answers.launchpad.net/yade/+question/678447 Bruno Chareyre posted a new comment: I confirm that there is a problem in the 18.04 "daily" release. Glad to know that wget+dpkg is a workaround. Not sure current repository will be f

Re: [Yade-users] [Question #678425]: kenetic Energy of particles

2019-02-11 Thread Bruno Chareyre
Question #678425 on Yade changed: https://answers.launchpad.net/yade/+question/678425 Bruno Chareyre posted a new comment: For just the kinetic energy there is no need for: O.trackEnergy=True, and this energy tracking is rather slow. Bruno -- You received this question notification because

Re: [Yade-users] [Question #678440]: young in PeriTriaxController

2019-02-11 Thread Bruno Chareyre
Question #678440 on Yade changed: https://answers.launchpad.net/yade/+question/678440 Bruno Chareyre proposed the following answer: Hi, If maxStrainRate=0 then the cell geometry is fixed and then stress will not be corrected. It should be >0, and that's probably the main parameter to set if

Re: [Yade-users] [Question #678348]: PeriTriaxController of different materials

2019-02-07 Thread Bruno Chareyre
Question #678348 on Yade changed: https://answers.launchpad.net/yade/+question/678348 Bruno Chareyre posted a new comment: > Running the program can take 10 minutes or more. You can adjust some non-critical parameters Would you mind adjusting them for me? :) -- You received this quest

Re: [Yade-users] [Question #678348]: PeriTriaxController of different materials

2019-02-07 Thread Bruno Chareyre
Question #678348 on Yade changed: https://answers.launchpad.net/yade/+question/678348 Bruno Chareyre requested more information: I don't understand your question, sorry. Do you mean that I should try this 3rd version of the script to discover something new? -- You received this question

Re: [Yade-users] [Question #678348]: PeriTriaxController of different materials

2019-02-06 Thread Bruno Chareyre
Question #678348 on Yade changed: https://answers.launchpad.net/yade/+question/678348 Bruno Chareyre proposed the following answer: There is still no plot despite the addPlotData. Anyway, don't you see the oscillations in the printed numbers? -- You received this question notification because

Re: [Yade-users] [Question #678348]: PeriTriaxController of different materials

2019-02-06 Thread Bruno Chareyre
Question #678348 on Yade changed: https://answers.launchpad.net/yade/+question/678348 Bruno Chareyre posted a new comment: Also note that saving whole plot data to text file each time you add one point in addPlotData is a sure way to waste cpu time and kill your HD in the long run. Bruno

Re: [Yade-users] [Question #678348]: PeriTriaxController of different materials

2019-02-06 Thread Bruno Chareyre
Question #678348 on Yade changed: https://answers.launchpad.net/yade/+question/678348 Status: Open => Answered Bruno Chareyre proposed the following answer: > I don't think the pressure is going to go down Well... no need to think here. Check output and you will see (conv

Re: [Yade-users] [Question #678348]: PeriTriaxController of different materials

2019-02-06 Thread Bruno Chareyre
Question #678348 on Yade changed: https://answers.launchpad.net/yade/+question/678348 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, If dynCell=True then the cell deformation is dynamic. I mean, inertial, like a mass-spring system. Depending on stiffn

Re: [Yade-users] [Question #678362]: Running simultaneous simulations

2019-02-06 Thread Bruno Chareyre
Question #678362 on Yade changed: https://answers.launchpad.net/yade/+question/678362 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, There is no need for a solution since it is not really a problem. Check: https://yade-dev.gitlab.io/trunk/formulation.h

Re: [Yade-users] [Question #678329]: Problems with yade-daily in Linux Mint 18.3 'Sylvia'

2019-02-04 Thread Bruno Chareyre
Question #678329 on Yade changed: https://answers.launchpad.net/yade/+question/678329 Bruno Chareyre proposed the following answer: Wow! You can actually start the yade program but you asked how to install it? Again be more specific... you need to show typed commands and output. The above

Re: [Yade-users] [Question #678329]: Problems with yade-daily in Linux Mint 18.3 'Sylvia'

2019-02-04 Thread Bruno Chareyre
Question #678329 on Yade changed: https://answers.launchpad.net/yade/+question/678329 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, Installing yade-daily (in fact yadedaily) and compiling yade from sources are two different things (as explained in installat

Re: [Yade-users] [Question #678308]: save spheres coordinates to a file

2019-02-03 Thread Bruno Chareyre
Question #678308 on Yade changed: https://answers.launchpad.net/yade/+question/678308 Bruno Chareyre proposed the following answer: Ah... and in O.bodies[b] 'b' should be an integer, not a body. Else it is a bit like O.bodies[O.bodies[O.bodies[O.bodies[ Bb] -- You received

Re: [Yade-users] [Question #678308]: save spheres coordinates to a file

2019-02-03 Thread Bruno Chareyre
Question #678308 on Yade changed: https://answers.launchpad.net/yade/+question/678308 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, O.bodies[b].radius does not exist. It should be O.bodies[b].shape.radius (if O.bodies[b] is a sphere). Regards Bruno --

Re: [Yade-users] [Question #678257]: export fabric tensor in txt

2019-02-01 Thread Bruno Chareyre
Question #678257 on Yade changed: https://answers.launchpad.net/yade/+question/678257 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, plot.addData() can only add real numbers, if you want to record a matrix (stress tensor) you need to record its components

Re: [Yade-users] [Question #678102]: setCohesionNow=True problem

2019-01-28 Thread Bruno Chareyre
Question #678102 on Yade changed: https://answers.launchpad.net/yade/+question/678102 Status: Open => Answered Bruno Chareyre proposed the following answer: File "test.py", line 11, in     acel = O.materials.append(FrictMat(young=EA,poisson=nuA,density=densA,frictionAngle=fr

Re: [Yade-users] [Question #678056]: three spheres with roling

2019-01-24 Thread Bruno Chareyre
Question #678056 on Yade changed: https://answers.launchpad.net/yade/+question/678056 Bruno Chareyre posted a new comment: > the bug is still there No surprise. addMove() is deprecated I would say. B -- You received this question notification because your team yade-users is an answer cont

Re: [Yade-users] [Question #678055]: porosity

2019-01-24 Thread Bruno Chareyre
Question #678055 on Yade changed: https://answers.launchpad.net/yade/+question/678055 Bruno Chareyre proposed the following answer: "there is no geometrical overlap" is misleading IMO. Should be replaced by "distance is larger than R1+R2". > if there is no deforma

Re: [Yade-users] [Question #678055]: porosity

2019-01-24 Thread Bruno Chareyre
Question #678055 on Yade changed: https://answers.launchpad.net/yade/+question/678055 Bruno Chareyre proposed the following answer: DEM is crunching numbers rather independently of the conceptual models we have in mind. There is no overlap in my conceptual model. I don't need that concept

Re: [Yade-users] [Question #678056]: three spheres with roling

2019-01-24 Thread Bruno Chareyre
Question #678056 on Yade changed: https://answers.launchpad.net/yade/+question/678056 Status: Open => Answered Bruno Chareyre proposed the following answer: I think it is a bug in O.forces.addMove. Could you please clean your example and paste it again as a bug report? title l

Re: [Yade-users] [Question #678056]: three spheres with roling

2019-01-24 Thread Bruno Chareyre
Question #678056 on Yade changed: https://answers.launchpad.net/yade/+question/678056 Bruno Chareyre proposed the following answer: O.bodies[1].state.blockedDOFs="xyzXYZ" O.bodies[1].state.vel=(-0.1,0,0) Then the top sphere rotates. Bruno -- You received this question notificati

Re: [Yade-users] [Question #678055]: porosity

2019-01-24 Thread Bruno Chareyre
Question #678055 on Yade changed: https://answers.launchpad.net/yade/+question/678055 Bruno Chareyre proposed the following answer: Empirical proof: https://www.youtube.com/watch?v=7cphkU3l71c -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #678055]: porosity

2019-01-24 Thread Bruno Chareyre
Question #678055 on Yade changed: https://answers.launchpad.net/yade/+question/678055 Bruno Chareyre proposed the following answer: > Since particles overlap whenever they collide I don't think so. I would think they deform, instead. > what does this porosity really mean? That'

Re: [Yade-users] [Question #678056]: three spheres with roling

2019-01-24 Thread Bruno Chareyre
Question #678056 on Yade changed: https://answers.launchpad.net/yade/+question/678056 Status: Open => Answered Bruno Chareyre proposed the following answer: File "temp.py", line 55, in VppSaveInteractions(fileName=nazwaPlikuIter, iterSave= PiterSave, timeSr = Ptime

Re: [Yade-users] [Question #678055]: porosity

2019-01-24 Thread Bruno Chareyre
Question #678055 on Yade changed: https://answers.launchpad.net/yade/+question/678055 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, It is taking Vs as a constant regardless of interactions. Bruno -- You received this question notification because your team y

Re: [Yade-users] [Question #677811]: 'checkUnbalanced' is not defined

2019-01-17 Thread Bruno Chareyre
Question #677811 on Yade changed: https://answers.launchpad.net/yade/+question/677811 Bruno Chareyre posted a new comment: Are there different types of pressure? -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #677858]: Periodic boundaries in one direction and load-controlled walls in the others

2019-01-17 Thread Bruno Chareyre
Question #677858 on Yade changed: https://answers.launchpad.net/yade/+question/677858 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, it is possible, yes. See e.g. [1]. You need to make sure the walls are sufficiently large so no particles will reach edges dur

Re: [Yade-users] [Question #677831]: compiled yade with GPU acceration

2019-01-16 Thread Bruno Chareyre
Question #677831 on Yade changed: https://answers.launchpad.net/yade/+question/677831 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, Please note that GPU is for a _fluid_ solver [1], not for the DEM time integrator. Regards Bruno [1] https://yade- dem.org/

Re: [Yade-users] [Question #677811]: 'checkUnbalanced' is not defined

2019-01-15 Thread Bruno Chareyre
Question #677811 on Yade changed: https://answers.launchpad.net/yade/+question/677811 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, >"I used a O.step() just after the interaction loop." seems to be the problem, since in such case O.step()

Re: [Yade-users] [Question #677635]: keeping constant confinement

2019-01-15 Thread Bruno Chareyre
Question #677635 on Yade changed: https://answers.launchpad.net/yade/+question/677635 Status: Open => Answered Bruno Chareyre proposed the following answer: > I was hoping there is a method to keep the particles at .65 porosity. Local porosity within the cylinder is unchanged, the ap

Re: [Yade-users] [Question #677635]: keeping constant confinement

2019-01-14 Thread Bruno Chareyre
Question #677635 on Yade changed: https://answers.launchpad.net/yade/+question/677635 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, I think everything is correct. > when I extract the cylinder, the porosity is set back to the original cloud po

Re: [Yade-users] [Question #677430]: web of yade

2019-01-11 Thread Bruno Chareyre
Question #677430 on Yade changed: https://answers.launchpad.net/yade/+question/677430 Status: Open => Answered Bruno Chareyre proposed the following answer: This is being investigated, sorry for inconvenience. Please note that the html documentation can be built ("make doc"

Re: [Yade-users] [Question #677511]: access to yade-dem.org

2019-01-11 Thread Bruno Chareyre
Question #677511 on Yade changed: https://answers.launchpad.net/yade/+question/677511 Status: Open => Needs information Bruno Chareyre requested more information: Hi, did you check if others asked the same question before asking? :) -- You received this question notification because y

Re: [Yade-users] [Question #677215]: problem with installation YADE package

2018-12-29 Thread Bruno Chareyre
Question #677215 on Yade changed: https://answers.launchpad.net/yade/+question/677215 Bruno Chareyre proposed the following answer: It would also work on Ubuntu 16.04. -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #676382]: Engine Error (JCFpmMat)

2018-12-21 Thread Bruno Chareyre
Question #676382 on Yade changed: https://answers.launchpad.net/yade/+question/676382 Bruno Chareyre posted a new comment: Hello, Please fill a bug report if relevant. It has more chance to trigger someone than calling it bug in a comment. It could help to answer the questions asked in #4 and #5

Re: [Yade-users] [Question #676841]: the definition of porosity

2018-12-19 Thread Bruno Chareyre
Question #676841 on Yade changed: https://answers.launchpad.net/yade/+question/676841 Bruno Chareyre proposed the following answer: > Is it because the wall goes through the center of the ball? Yes. The displacement is proportional to force, increasing force more and more thus leads bod

Re: [Yade-users] [Question #676810]: angle of shearing resistance in triaxial compression

2018-12-17 Thread Bruno Chareyre
Question #676810 on Yade changed: https://answers.launchpad.net/yade/+question/676810 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, please note that emails are sent to every yade-user each time you edit a question. It means 5 emails (*) just for the quest

Re: [Yade-users] [Question #671104]: Internal Void raito

2018-12-14 Thread Bruno Chareyre
Question #671104 on Yade changed: https://answers.launchpad.net/yade/+question/671104 Bruno Chareyre posted a new comment: Hi, I find the question unclear. If the expected output is not clearly defined (e.g. how do you define the external volume of a clump?) it is not possible to propose

Re: [Yade-users] [Question #676747]: the way of set psd

2018-12-13 Thread Bruno Chareyre
Question #676747 on Yade changed: https://answers.launchpad.net/yade/+question/676747 Bruno Chareyre proposed the following answer: Hi, Boost has plenty PDF models that you can use in replacement of the current one if you are ready to read the c++ code and modify it to achieve your goals. Needs

Re: [Yade-users] [Question #676781]: Yadedaily version

2018-12-13 Thread Bruno Chareyre
Question #676781 on Yade changed: https://answers.launchpad.net/yade/+question/676781 Status: Answered => Invalid Bruno Chareyre rejected the question: spam question - invalid -- You received this question notification because your team yade-users is an answer contact for Y

Re: [Yade-users] [Question #676781]: Yadedaily version

2018-12-13 Thread Bruno Chareyre
Question #676781 on Yade changed: https://answers.launchpad.net/yade/+question/676781 Status: Open => Answered Bruno Chareyre proposed the following answer: Please don't re-post the same question in a new thread, it is useless (plus you didn't even close the previous thread).

Re: [Yade-users] [Question #676776]: how to plot psd

2018-12-13 Thread Bruno Chareyre
Question #676776 on Yade changed: https://answers.launchpad.net/yade/+question/676776 Bruno Chareyre posted a new comment: >Can you tell me where to search psd.py? (sent to yade-users) The lazy way is to search "yade psd.py" in your search engine. Alternatively you can downloa

Re: [Yade-users] [Question #676284]: avg Num Interactions

2018-12-13 Thread Bruno Chareyre
Question #676284 on Yade changed: https://answers.launchpad.net/yade/+question/676284 Status: Open => Answered Bruno Chareyre proposed the following answer: Yes, it is currently the latest. Bruno -- You received this question notification because your team yade-users is an answer cont

Re: [Yade-users] [Question #676776]: how to plot psd

2018-12-13 Thread Bruno Chareyre
Question #676776 on Yade changed: https://answers.launchpad.net/yade/+question/676776 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, Please check example script psd.py. Bruno -- You received this question notification because your team yade-users is an ans

Re: [Yade-users] [Question #676748]: fixed=True how it is iworking?

2018-12-12 Thread Bruno Chareyre
Question #676748 on Yade changed: https://answers.launchpad.net/yade/+question/676748 Bruno Chareyre posted a new comment: >with dynamic it is working!! "fixed" works equally well. The problem is that all spheres are inserted twice. Here: O.bodies.append(sphere(c,r,fixed=True)) #f

Re: [Yade-users] [Question #676284]: avg Num Interactions

2018-12-12 Thread Bruno Chareyre
Question #676284 on Yade changed: https://answers.launchpad.net/yade/+question/676284 Status: Open => Answered Bruno Chareyre proposed the following answer: I couldn't trace back 2018.02b-1786828270~xenial I'm sorry. Could you update yadedaily and report new version number (and conf

Re: [Yade-users] [Question #676284]: avg Num Interactions

2018-12-07 Thread Bruno Chareyre
Question #676284 on Yade changed: https://answers.launchpad.net/yade/+question/676284 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, Could you please provide more accurate version number and a minimal working script? Bruno -- You received this quest

Re: [Yade-users] [Question #676284]: avg Num Interactions

2018-12-07 Thread Bruno Chareyre
Question #676284 on Yade changed: https://answers.launchpad.net/yade/+question/676284 Bruno Chareyre proposed the following answer: Can't reproduce: bchareyre@lt-gmn018:~$ yadedaily Welcome to Yade 2018.02b-288b5fbefc~xenial Yade [1]: nums,counts=bodyNumInteractionsHistogram(aabbExtrema(0

Re: [Yade-users] [Question #676609]: problem with createInteraction() command

2018-12-05 Thread Bruno Chareyre
Question #676609 on Yade changed: https://answers.launchpad.net/yade/+question/676609 Bruno Chareyre posted a new comment: Son, You script runs smoothly after a change [1] in the source code. yadedaily should be updated soon. Bruno [1] https://github.com/yade/trunk/commit

Re: [Yade-users] [Question #676621]: problems of surface coupling of DEM-FEM

2018-12-05 Thread Bruno Chareyre
Question #676621 on Yade changed: https://answers.launchpad.net/yade/+question/676621 Status: Open => Answered Bruno Chareyre proposed the following answer: >Undefined or ambiguous IPhys dispatch for types FrictMat and PolyhedraMat Hi You are mixing two different material types a

[Yade-users] yadedaily packages are updated again / ubuntu 18.04 available

2018-12-05 Thread Bruno Chareyre
Dear Yade users, This is to let you know that the building of daily packages is back to normal [1]. Ubuntu 18.04 ""Bionic is now included in the supported distributions. Happy yading. Bruno http://yade-dem.org/packages/ -- _______ Bruno Chareyre Associate Professor ENSE³

Re: [Yade-users] [Question #676609]: problem with createInteraction() command

2018-12-05 Thread Bruno Chareyre
Question #676609 on Yade changed: https://answers.launchpad.net/yade/+question/676609 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi Son, As Jerome suggests the apparent contradiction is because the interaction exists in a virtual state: detected by colli

Re: [Yade-users] [Question #676507]: capability of simulating angular rigid particles (polyhedral) with YADE

2018-12-03 Thread Bruno Chareyre
Question #676507 on Yade changed: https://answers.launchpad.net/yade/+question/676507 Bruno Chareyre proposed the following answer: > That meant if in YADE we don`t have polyhedral particles, what is described in these links? I don't understand why you claim there are no polyhedral partic

Re: [Yade-users] [Question #676507]: capability of simulating angular rigid particles (polyhedral) with YADE

2018-12-03 Thread Bruno Chareyre
Question #676507 on Yade changed: https://answers.launchpad.net/yade/+question/676507 Bruno Chareyre posted a new comment: > What is this? The first is an hyperlink to yade's documentation. The second alike. The third suggests a journal paper. What was your question? The PFacet

Re: [Yade-users] [Question #676507]: capability of simulating angular rigid particles (polyhedral) with YADE

2018-12-03 Thread Bruno Chareyre
Question #676507 on Yade changed: https://answers.launchpad.net/yade/+question/676507 Bruno Chareyre proposed the following answer: Hi, I believe PFacets would work with cohesive interactions and paving a volume with tetrahedra as in Taghavi & Pierce implies no special difficulty. Of co

Re: [Yade-users] [Question #676451]: optimize camputational time for vibrated granular media

2018-11-30 Thread Bruno Chareyre
Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451 Status: Open => Answered Bruno Chareyre proposed the following answer: Welcome. That would be interesting for me to see: N=..| YadeTime | LammpsTime 200 400 ... 2400 I was check

Re: [Yade-users] [Question #676451]: optimize camputational time for vibrated granular media

2018-11-30 Thread Bruno Chareyre
Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451 Bruno Chareyre proposed the following answer: It is not directly related to computation time but do you know that right after adder() there is a burst of kinetic energy because you insert new spheres through

Re: [Yade-users] [Question #676451]: optimize camputational time for vibrated granular media

2018-11-29 Thread Bruno Chareyre
Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451 Status: Open => Answered Bruno Chareyre proposed the following answer: It is difficult for me to understand the meaning of various values of meanSpeedLAMMPS/meanSpeedYADE since they depend on both LAM

Re: [Yade-users] [Question #676451]: optimize camputational time for vibrated granular media

2018-11-29 Thread Bruno Chareyre
Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451 Status: Open => Answered Bruno Chareyre proposed the following answer: After rolling back to your version with sphere insertion the perfs are still more or less the same (6.7s instead of 5.5s for 2k sphe

Re: [Yade-users] [Question #676451]: optimize camputational time for vibrated granular media

2018-11-29 Thread Bruno Chareyre
Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451 Bruno Chareyre posted a new comment: > 100x slower 10x even -- You received this question notification because your team yade-users is an answer contact for Y

Re: [Yade-users] [Question #676451]: optimize camputational time for vibrated granular media

2018-11-29 Thread Bruno Chareyre
Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451 Bruno Chareyre posted a new comment: I see. Well, as I just reduced the radius a little to make them all fit in I can give you some results with -j4 (also reduced verletDist but the speedup is small, script

Re: [Yade-users] [Question #676451]: optimize camputational time for vibrated granular media

2018-11-29 Thread Bruno Chareyre
Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451 Bruno Chareyre posted a new comment: Are you aware that you may not always get the number of spheres you ask for? WARN /data/trunk/pkg/dem/SpherePack.cpp:248 makeCloud: Exceeded 1000 tries to insert non

Re: [Yade-users] [Question #676452]: yadedaily update

2018-11-29 Thread Bruno Chareyre
Question #676452 on Yade changed: https://answers.launchpad.net/yade/+question/676452 Bruno Chareyre proposed the following answer: Dates of latest builds are visible here: http://yade-dem.org/packages/ -- You received this question notification because your team yade-users is an answer contact

Re: [Yade-users] [Question #676452]: yadedaily update

2018-11-29 Thread Bruno Chareyre
Question #676452 on Yade changed: https://answers.launchpad.net/yade/+question/676452 Status: Open => Answered Bruno Chareyre proposed the following answer: Unfortunately yadedaily is not being updated daily, as it should, at this moment. You will have to compile from sources I'm afr

Re: [Yade-users] [Question #676451]: optimize camputational time for vibrated granular media

2018-11-29 Thread Bruno Chareyre
Question #676451 on Yade changed: https://answers.launchpad.net/yade/+question/676451 Status: Open => Answered Bruno Chareyre proposed the following answer: Very interesting feedback! It will be difficult to say something without a working script and without specific timings, though. I t

Re: [Yade-users] [Question #676450]: Uploading simulation files to Amazon HPC

2018-11-29 Thread Bruno Chareyre
Question #676450 on Yade changed: https://answers.launchpad.net/yade/+question/676450 Status: Needs information => Answered Bruno Chareyre proposed the following answer: I'm glad you found help here but please note that uploading a file to an EC2 instance is probably covered by Amazo

[Yade-users] [Question #676284]: Status of bug #1804621 changed to 'Triaged' in Yade

2018-11-27 Thread Bruno Chareyre
Bug #1804621 status changed in Yade: New => Triaged https://bugs.launchpad.net/yade/+bug/1804621 "bodyNumInteractionsHistogram broken" This bug is linked to #676284. avg Num Interactions https://answers.launchpad.net/yade/+question/676284 -- You received this question notification

Re: [Yade-users] [Question #676370]: Unhandled exception in thread started by

2018-11-26 Thread Bruno Chareyre
Question #676370 on Yade changed: https://answers.launchpad.net/yade/+question/676370 Bruno Chareyre proposed the following answer: >script-session1.py wiht some minor modifications. It works well with young = 100e6, but it encountered some problems when I set young = 500e6 Hi, I just grab

Re: [Yade-users] [Question #676248]: Radius Expansion Method

2018-11-21 Thread Bruno Chareyre
Question #676248 on Yade changed: https://answers.launchpad.net/yade/+question/676248 Bruno Chareyre posted a new comment: > a characteristic feature of the Radius Expansion Method Do you mean that just after sp.makeCloud() the distribution is correct but after growing it is distor

Re: [Yade-users] [Question #676176]: Generate a sample with a porosity gradient; change sphere material in periodic simulation

2018-11-16 Thread Bruno Chareyre
Question #676176 on Yade changed: https://answers.launchpad.net/yade/+question/676176 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi Nolan, > is there any way to edit the material of spheres which have already been added to the simulation? "O.bodies[

Re: [Yade-users] [Question #676026]: definition of stress-strain in a sample

2018-11-09 Thread Bruno Chareyre
Question #676026 on Yade changed: https://answers.launchpad.net/yade/+question/676026 Bruno Chareyre proposed the following answer: Hi, If you could give the mathematical definition of what you call "stress" and "strain" in your "very simple" granular system, then

Re: [Yade-users] [Question #676013]: Some questions about plot.plots

2018-11-08 Thread Bruno Chareyre
Question #676013 on Yade changed: https://answers.launchpad.net/yade/+question/676013 Status: Open => Answered Bruno Chareyre proposed the following answer: > is there a similar way to plot.plots to show the curve i need? Hi, It seems you don't want a "curve" but a surfac

Re: [Yade-users] [Question #676012]: Questions about facet and CohesiveFrictionalContactLaw

2018-11-08 Thread Bruno Chareyre
Question #676012 on Yade changed: https://answers.launchpad.net/yade/+question/676012 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, You need to clarify what you call "facet" since there are multiple models with facets in Yade and this will influen

Re: [Yade-users] [Question #675926]: Particle size distribution curve after particle breaking

2018-11-07 Thread Bruno Chareyre
Question #675926 on Yade changed: https://answers.launchpad.net/yade/+question/675926 Bruno Chareyre posted a new comment: Yes, please, yangjunjie, don't re-write the history of discussions. I'm also curious why the first part of the question was removed: "This is my last question about par

Re: [Yade-users] [Question #675971]: interacting or non interacting spheres

2018-11-07 Thread Bruno Chareyre
Question #675971 on Yade changed: https://answers.launchpad.net/yade/+question/675971 Bruno Chareyre proposed the following answer: Hi, It seems to be an unexpected use case of avoidSelfInteractionMask [1] . If, let's say: b1=Body(groupMask=2) b2=Body(groupMask=2

Re: [Yade-users] [Question #675879]: Polyhedron interaction with sphere

2018-11-05 Thread Bruno Chareyre
Question #675879 on Yade changed: https://answers.launchpad.net/yade/+question/675879 Status: Open => Answered Bruno Chareyre proposed the following answer: >When the sphere is located just at the center of the box (eps_pos = 0), there is an interaction between the two objects Hi

Re: [Yade-users] [Question #675256]: running .so file wrapped by cython parallellized by mpi in yade

2018-11-02 Thread Bruno Chareyre
Question #675256 on Yade changed: https://answers.launchpad.net/yade/+question/675256 Status: Open => Answered Bruno Chareyre proposed the following answer: To somehow reproduce the same namespace you need "from yadeimport import *", where "yadeimport" is a sym

Re: [Yade-users] [Question #675246]: inertia calculation facetbox

2018-11-02 Thread Bruno Chareyre
Question #675246 on Yade changed: https://answers.launchpad.net/yade/+question/675246 Status: Open => Answered Bruno Chareyre proposed the following answer: https://yade-dem.org/wiki/Howtoask , bullet 5. -- You received this question notification because your team yade-users is an ans

Re: [Yade-users] [Question #675797]: gridnode interaction with sphere cannot display the grid

2018-11-02 Thread Bruno Chareyre
Question #675797 on Yade changed: https://answers.launchpad.net/yade/+question/675797 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, First of all, if you want to see the result of a script better don't append O.run() at the end of it. It solves the "i can

Re: [Yade-users] [Question #675777]: Editor for scripting

2018-10-30 Thread Bruno Chareyre
Question #675777 on Yade changed: https://answers.launchpad.net/yade/+question/675777 Bruno Chareyre posted a new comment: Cheap yet efficient: "kate" has convenient syntax highlighting and hotkeys for python (e.g. indentation of blocks), and it can dock a terminal in another tab so yo

Re: [Yade-users] [Question #675691]: problem with shape of polyhedra

2018-10-30 Thread Bruno Chareyre
Question #675691 on Yade changed: https://answers.launchpad.net/yade/+question/675691 Bruno Chareyre proposed the following answer: If the objective is to have a 'triangular' polyhedron (not very clear the question) I would definitely suggest PFacets: one single facet (3 nodes) will do

Re: [Yade-users] [Question #675377]: Straining rate in PeriTriaxController

2018-10-26 Thread Bruno Chareyre
Question #675377 on Yade changed: https://answers.launchpad.net/yade/+question/675377 Bruno Chareyre posted a new comment: > cell.getSmallStrain() will contain non-negligible errors, even for small increments of strain Nope, it will not, this is where you loose me. :) When you don't reset t

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