Re: [Yade-users] [Question #695226]: RungeKuttaCashKarp54Integrator with gridConnections is causing errors

2021-01-28 Thread Bruno Chareyre
Question #695226 on Yade changed: https://answers.launchpad.net/yade/+question/695226 Bruno Chareyre posted a new comment: You are past-the-end of my checklist. :) RungeKuttaCashKarp54Integrator makes sense then. Last one maybe: in a working case (small damping), did you find consistency _at

Re: [Yade-users] [Question #695058]: Bending beams mass computation

2021-01-28 Thread Bruno Chareyre
Question #695058 on Yade changed: https://answers.launchpad.net/yade/+question/695058 Status: Open => Answered Bruno Chareyre proposed the following answer: Here is a fix for your test. :) mass computation realLength= (O.bodies[n-1].state.pos-O.bodies[0].state.pos).n

Re: [Yade-users] [Question #695192]: wall.append(O.bodies.append(pfacet) in triaxial test

2021-01-28 Thread Bruno Chareyre
Question #695192 on Yade changed: https://answers.launchpad.net/yade/+question/695192 Status: Open => Needs information Bruno Chareyre requested more information: That's too many questions for me, sorry. Simple answer: you did not show a problem with Box's, you showed a problem with Wal

Re: [Yade-users] [Question #695226]: RungeKuttaCashKarp54Integrator with gridConnections is causing errors

2021-01-28 Thread Bruno Chareyre
Question #695226 on Yade changed: https://answers.launchpad.net/yade/+question/695226 Bruno Chareyre requested more information: > I added viscous damping to the source code of Law2_ScGeom6D_CohFrictPhys_CohesionMoment, this caused the NewtonIntegrator to be unstable Quick note: We can't rea

Re: [Yade-users] [Question #695192]: wall.append(O.bodies.append(pfacet) in triaxial test

2021-01-27 Thread Bruno Chareyre
Question #695192 on Yade changed: https://answers.launchpad.net/yade/+question/695192 Status: Open => Answered Bruno Chareyre proposed the following answer: > I have tried boxes for the walls and it worked well except boxes can't interact with cylinder Sure of that? Any example

Re: [Yade-users] [Question #695192]: wall.append(O.bodies.append(pfacet) in triaxial test

2021-01-26 Thread Bruno Chareyre
Question #695192 on Yade changed: https://answers.launchpad.net/yade/+question/695192 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, I would suggest to use boxes for the walls since they are completely flat. It would minimize the number of problems for a st

Re: [Yade-users] [Question #695154]: Polyhedra contact instability (potential Bug?)

2021-01-23 Thread Bruno Chareyre
Question #695154 on Yade changed: https://answers.launchpad.net/yade/+question/695154 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, Thanks for your report (I do not confirm, didn't check details). > I wish, I could be able to verify this by

Re: [Yade-users] [Question #695082]: Yadedaily installation and mpmath error (focal)

2021-01-19 Thread Bruno Chareyre
Question #695082 on Yade changed: https://answers.launchpad.net/yade/+question/695082 Bruno Chareyre posted a new comment: Magic -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list

Re: [Yade-users] [Question #695081]: Compilation failed on vtk8.2.0

2021-01-19 Thread Bruno Chareyre
Question #695081 on Yade changed: https://answers.launchpad.net/yade/+question/695081 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, The error refers to boost/multiple precision numbers. Probably a version issue. If turning off more module is a solution for

Re: [Yade-users] [Question #695031]: Tablet compaction

2021-01-17 Thread Bruno Chareyre
Question #695031 on Yade changed: https://answers.launchpad.net/yade/+question/695031 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, • Which contact model was used? Each script selects one (or many) contact model(s). You can read that script to know which

Re: [Yade-users] [Question #694997]: Am I incorrectly using O.Periodic=True?

2021-01-17 Thread Bruno Chareyre
Question #694997 on Yade changed: https://answers.launchpad.net/yade/+question/694997 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, makeCloud will generate a 2D packing if you give it a box with null length in one direction. I think it works in the periodic c

Re: [Yade-users] [Question #694982]: problem of the command "O.cell.velGrad"

2021-01-17 Thread Bruno Chareyre
Question #694982 on Yade changed: https://answers.launchpad.net/yade/+question/694982 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, > thought the stress calculated are the same ones in the "stressStrain.txt" > print stressxx,stressyy,stressxy

Re: [Yade-users] [Question #694548]: Unexpected PFacet Collision Physics

2021-01-11 Thread Bruno Chareyre
Question #694548 on Yade changed: https://answers.launchpad.net/yade/+question/694548 Bruno Chareyre posted a new comment: issue on gitlab for tracking progress on the bug: https://gitlab.com /yade-dev/trunk/-/issues/184 Let me know if you make progress in understanding the issue. I think I may

Re: [Yade-users] [Question #694548]: Unexpected PFacet Collision Physics

2021-01-08 Thread Bruno Chareyre
Question #694548 on Yade changed: https://answers.launchpad.net/yade/+question/694548 Bruno Chareyre proposed the following answer: At impact time the forces are the same on nodes 7 and 8 while based on the symmetry it should be the same on 8 and 9 instead. Really looks like at some point

Re: [Yade-users] [Question #694548]: Unexpected PFacet Collision Physics

2021-01-08 Thread Bruno Chareyre
Question #694548 on Yade changed: https://answers.launchpad.net/yade/+question/694548 Bruno Chareyre proposed the following answer: Tries your script. To me it looks like there is a wrong numbering of nodes, a mathematical error in the force/torque distribution, or something alike. Distributing

Re: [Yade-users] [Question #694548]: Unexpected PFacet Collision Physics

2021-01-08 Thread Bruno Chareyre
Question #694548 on Yade changed: https://answers.launchpad.net/yade/+question/694548 Status: Open => Answered Bruno Chareyre proposed the following answer: I would say the angular momentum is (should be...) conserved. Simply, the PFacet is, from an inertial point of view, a trian

[Yade-users] yade-dem.org website temporary issue and workaround

2021-01-08 Thread Bruno Chareyre
the pages are accessed without the "s" in "https://; . Sorry for the inconvenience, fix should come quick. Best Regards Bruno Chareyre p.s. That is a great opportunity to wish you all, the best for 2021, including the greatest DEM results. :) __

Re: [Yade-users] [Question #694531]: non linear shear: How to implement it?

2020-12-18 Thread Bruno Chareyre
Question #694531 on Yade changed: https://answers.launchpad.net/yade/+question/694531 Bruno Chareyre posted a new comment: > In that case Ft would be stuck at a value, will it not? Right. Which usual problem for explicit Euler. So you need to think of a different time-intergation in this c

Re: [Yade-users] [Question #694531]: non linear shear: How to implement it?

2020-12-16 Thread Bruno Chareyre
Question #694531 on Yade changed: https://answers.launchpad.net/yade/+question/694531 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, In the context of CPM the espT can be seen as a proxy to current shear force Ft, since the model is linear. You could replace e

Re: [Yade-users] [Question #693739]: Energy conservation in thermal and flow Engines

2020-12-15 Thread Bruno Chareyre
Question #693739 on Yade changed: https://answers.launchpad.net/yade/+question/693739 Bruno Chareyre posted a new comment: > I have difficulty finding the throat index relating two neighboring cells so that I can use "getDiffusionCoeff" and cell temperatures to estimate thermal

Re: [Yade-users] [Question #694217]: Normal stiffness of contact under tension

2020-12-15 Thread Bruno Chareyre
Question #694217 on Yade changed: https://answers.launchpad.net/yade/+question/694217 Bruno Chareyre posted a new comment: Hi, A short comment related to this: > But when the two particles are under tension stress and leave each other, the > stiffness of bonding should have nothing

Re: [Yade-users] [Question #694203]: spherepack not under gravity and stays on the bed/base

2020-12-15 Thread Bruno Chareyre
Question #694203 on Yade changed: https://answers.launchpad.net/yade/+question/694203 Bruno Chareyre posted a new comment: The self answer in #5 is the long version of #3. Sorry it it was too short and congrats. :) Cheers -- You received this question notification because your team yade-users

Re: [Yade-users] [Question #694203]: spherepack not under gravity and stays on the bed/base

2020-11-26 Thread Bruno Chareyre
Question #694203 on Yade changed: https://answers.launchpad.net/yade/+question/694203 Status: Open => Answered Bruno Chareyre proposed the following answer: Oh. You mean that you want gravity to actually deposit the spheres? Then what you need is time iterations to let them deposit: &qu

Re: [Yade-users] [Question #694203]: spherepack not under gravity and stays on the bed/base

2020-11-26 Thread Bruno Chareyre
Question #694203 on Yade changed: https://answers.launchpad.net/yade/+question/694203 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, NewtonIntegrator(gravity=[0,0,0])] and add weight as a single external force on the big one? Bruno -- You recei

Re: [Yade-users] [Question #694192]: Yade-OpenFOAM icoFoam coupling

2020-11-26 Thread Bruno Chareyre
Question #694192 on Yade changed: https://answers.launchpad.net/yade/+question/694192 Status: Open => Needs information Bruno Chareyre requested more information: Hi, I'm not expert of that code but do you suggest there is just a problem in some include path? To help report the is

Re: [Yade-users] [Question #694134]: How to use only rolling but no twisting when using CohFricMat.

2020-11-25 Thread Bruno Chareyre
Question #694134 on Yade changed: https://answers.launchpad.net/yade/+question/694134 Bruno Chareyre posted a new comment: > I have in mind restricting those do not change much the results anyway It depends very much on how strongly their are restricted, in fact. :) There's no rolling with

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

2020-11-23 Thread Bruno Chareyre
Question #676841 on Yade changed: https://answers.launchpad.net/yade/+question/676841 Bruno Chareyre posted a new comment: Hi Ferenc, There's also this feature in the laws using interaction physics CohFrictPhys, and also in other more exotic functors (e.g. VirtualLubricationPhys). But Luc

Re: [Yade-users] [Question #693670]: how to fix pfacets

2020-10-29 Thread Bruno Chareyre
Question #693670 on Yade changed: https://answers.launchpad.net/yade/+question/693670 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, I don't see any bottom in the "box" (actually just a frame), so I'm unsure where you expect the spheres to be stopped

Re: [Yade-users] [Question #693698]: Trouble when compiling with g++-9 or g++-7

2020-10-29 Thread Bruno Chareyre
Question #693698 on Yade changed: https://answers.launchpad.net/yade/+question/693698 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, Please try fresh install. You are currently building+installing in the same path regardless of the g++ version, this alone co

Re: [Yade-users] [Question #693640]: utils.wall acts like air...

2020-10-28 Thread Bruno Chareyre
Question #693640 on Yade changed: https://answers.launchpad.net/yade/+question/693640 Bruno Chareyre posted a new comment: @bean Thanks! Now at least I can remember you as a vegetable. Hopefully nobody will not pick "soya". :) B -- You received this question notification because your

Re: [Yade-users] [Question #693485]: Why is there so much negative water pressure

2020-10-28 Thread Bruno Chareyre
Question #693485 on Yade changed: https://answers.launchpad.net/yade/+question/693485 Status: Open => Answered Bruno Chareyre proposed the following answer: I honestly don't remember the sign convention but I guess it is easy to check on your side. If changing the sign of the source t

Re: [Yade-users] [Question #693649]: Law2_ScGeom6D_CohFrictPhys_CohesionMoment

2020-10-27 Thread Bruno Chareyre
Question #693649 on Yade changed: https://answers.launchpad.net/yade/+question/693649 Bruno Chareyre posted a new comment: Hi, I would kindly ask you to fix your username for my personal brain struggles to distinguish user "onyourself" from user "nobody". Regards Bru

Re: [Yade-users] [Question #693640]: utils.wall acts like air...

2020-10-27 Thread Bruno Chareyre
Question #693640 on Yade changed: https://answers.launchpad.net/yade/+question/693640 Bruno Chareyre posted a new comment: Hi, I would kindly ask you to fix your username for my personal brain struggles to distinguish user "onyourself" from user "nobody". Regards Bru

Re: [Yade-users] [Question #693485]: Why is there so much negative water pressure

2020-10-27 Thread Bruno Chareyre
Question #693485 on Yade changed: https://answers.launchpad.net/yade/+question/693485 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, Did you check that a flux equal to -0.01 doesn't actually means fluid is pumped out (instead of being injected)? Bruno --

Re: [Yade-users] [Question #693446]: How to have viscous damping for chainedCylinder

2020-10-27 Thread Bruno Chareyre
Question #693446 on Yade changed: https://answers.launchpad.net/yade/+question/693446 Bruno Chareyre posted a new comment: Yes indeed. Sorry to be late. B -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #693446]: How to have viscous damping for chainedCylinder

2020-10-14 Thread Bruno Chareyre
Question #693446 on Yade changed: https://answers.launchpad.net/yade/+question/693446 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, I have noticed those violent vibrations sometimes and I'm still not sure if it is a bug somewhere or just expected instabil

Re: [Yade-users] [Question #691351]: Permeability error

2020-06-17 Thread Bruno Chareyre
Question #691351 on Yade changed: https://answers.launchpad.net/yade/+question/691351 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, I can't make sense of problem outline. > there is a plane of fractures identified and the flow only occurs in this plane dir

Re: [Yade-users] [Question #691115]: Question about the "0.05" in (O.bodies[i.id2].state.jointNormal1.cross(nRef)).norm()>0.05)

2020-06-04 Thread Bruno Chareyre
Question #691115 on Yade changed: https://answers.launchpad.net/yade/+question/691115 Bruno Chareyre posted a new comment: > not too ambitious in terms of precision here, we did not check against zero but against 0.05 That's fairly tolerant... False positive is no issue? If you want to ch

Re: [Yade-users] [Question #691115]: Question about the "0.05" in (O.bodies[i.id2].state.jointNormal1.cross(nRef)).norm()>0.05)

2020-06-03 Thread Bruno Chareyre
Question #691115 on Yade changed: https://answers.launchpad.net/yade/+question/691115 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, You made me realize that the obsolete github repository was still available though obsolete for quite some time now. Your l

Re: [Yade-users] [Question #691104]: How should the corresponding physical parameters change after the dimension changes from meters to millimeters?

2020-06-03 Thread Bruno Chareyre
Question #691104 on Yade changed: https://answers.launchpad.net/yade/+question/691104 Bruno Chareyre proposed the following answer: > yade is not in meter To be more clear yade is not in _any_ unit. The units are in our human brains, yade crunches numbers. B -- You received this quest

Re: [Yade-users] [Question #691104]: How should the corresponding physical parameters change after the dimension changes from meters to millimeters?

2020-06-03 Thread Bruno Chareyre
Question #691104 on Yade changed: https://answers.launchpad.net/yade/+question/691104 Bruno Chareyre proposed the following answer: I think both short and long versions in the first answer are perfect yet here is another possible answer (or comment): > after the dimension changes from met

Re: [Yade-users] [Question #691065]: How to Show Stress or strain contour

2020-06-01 Thread Bruno Chareyre
Question #691065 on Yade changed: https://answers.launchpad.net/yade/+question/691065 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, I don't understand your question I'm sorry. I would suggest to close this confusing discussion, step back, then clarify what

Re: [Yade-users] [Question #691021]: en averaging for Law2_ScGeom_ViscElPhys_Basic, bug or incorrect documentation?

2020-05-29 Thread Bruno Chareyre
Question #691021 on Yade changed: https://answers.launchpad.net/yade/+question/691021 Bruno Chareyre proposed the following answer: I think the equation therein have been modified a lot since Serguei Dorofenko, it is just not reflected in file authors. It is sometimes difficult to answer &quo

Re: [Yade-users] [Question #690973]: running on a server is slower than on a PC

2020-05-28 Thread Bruno Chareyre
Question #690973 on Yade changed: https://answers.launchpad.net/yade/+question/690973 Bruno Chareyre proposed the following answer: > the parallel programming, means there are 98 programming copies, and each copy for a cores. If my understanding right or not? More or less.[1] > If I in

Re: [Yade-users] [Question #691021]: en averaging for Law2_ScGeom_ViscElPhys_Basic, bug or incorrect documentation?

2020-05-28 Thread Bruno Chareyre
Question #691021 on Yade changed: https://answers.launchpad.net/yade/+question/691021 Bruno Chareyre posted a new comment: Hi, Thanks for detailed explanation. I will not be able to compile this info right now personaly, but I have one comment. The change following your previous question [1

Re: [Yade-users] [Question #691009]: et for ViscElMat with Law2_ScGeom_ViscElPhys_Basic, bug or feature?

2020-05-28 Thread Bruno Chareyre
Question #691009 on Yade changed: https://answers.launchpad.net/yade/+question/691009 Status: Open => Answered Bruno Chareyre proposed the following answer: Like this? https://gitlab.com/yade- dev/trunk/-/merge_requests/493/diffs?commit_id=da5194f3169725e0d103f62dadc6ea51def0f854 --

Re: [Yade-users] [Question #691009]: et for ViscElMat with Law2_ScGeom_ViscElPhys_Basic, bug or feature?

2020-05-28 Thread Bruno Chareyre
Question #691009 on Yade changed: https://answers.launchpad.net/yade/+question/691009 Status: Open => Needs information Bruno Chareyre requested more information: > so why not just change line 263 to be: > } else if (isfinite(mat1->en) ) { I have no precise idea now (don't kn

Re: [Yade-users] [Question #690973]: running on a server is slower than on a PC

2020-05-28 Thread Bruno Chareyre
Question #690973 on Yade changed: https://answers.launchpad.net/yade/+question/690973 Bruno Chareyre proposed the following answer: > I understand you suggestion to get the optimal price of cores. But now for me, to get the fastest speed of the simulation is the aim. Yes. That's exactly my po

Re: [Yade-users] [Question #690973]: running on a server is slower than on a PC

2020-05-27 Thread Bruno Chareyre
Question #690973 on Yade changed: https://answers.launchpad.net/yade/+question/690973 Bruno Chareyre proposed the following answer: > Start the script by the 'start' button on the Controller(), without "3D" show [...] did 10 iteration test [...] Because I get the time by hand, so th

Re: [Yade-users] [Question #690973]: running on a server is slower than on a PC

2020-05-26 Thread Bruno Chareyre
Question #690973 on Yade changed: https://answers.launchpad.net/yade/+question/690973 Bruno Chareyre posted a new comment: > If the performance is just depend on a core, that is a very terrible message to me Not really. The message was: 1/ of course you don't automatically gain speedup by us

Re: [Yade-users] [Question #690973]: running on a server is slower than on a PC

2020-05-26 Thread Bruno Chareyre
Question #690973 on Yade changed: https://answers.launchpad.net/yade/+question/690973 Bruno Chareyre proposed the following answer: Ah: and it is absolutely critical that you keep GUI turned *off*. Else the comparisons are meaningless, you could be testing the GPU. You don't use GUI for long

Re: [Yade-users] [Question #690973]: running on a server is slower than on a PC

2020-05-26 Thread Bruno Chareyre
Question #690973 on Yade changed: https://answers.launchpad.net/yade/+question/690973 Bruno Chareyre proposed the following answer: > So I use 96 core. Maybe it is a bad idea. Or maybe it is ok but it doesn't give much more compared to, say, 48. OpenMP may have an optimum somewhere and ma

Re: [Yade-users] [Question #690973]: running on a server is slower than on a PC

2020-05-26 Thread Bruno Chareyre
Question #690973 on Yade changed: https://answers.launchpad.net/yade/+question/690973 Bruno Chareyre proposed the following answer: Hi, What you observe is actually expected: XEON 4, 3.2GH I7 3.6GH The I7 is faster. HPC rarely outperform personal computers in per-core performance. Arguably

Re: [Yade-users] [Question #690942]: Concrete cube dimension, aggregate particle and peri3dController

2020-05-25 Thread Bruno Chareyre
Question #690942 on Yade changed: https://answers.launchpad.net/yade/+question/690942 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, > there is an initial size = 1.2, but apparently, this is not the cube dimension Why not? > How to determine the va

Re: [Yade-users] [Question #690935]: makeVideo

2020-05-24 Thread Bruno Chareyre
Question #690935 on Yade changed: https://answers.launchpad.net/yade/+question/690935 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, > I'm wondering if it is possible to make snapshots and videos of a graph plotted with the command plot.addData Behind a

Re: [Yade-users] [Question #690815]: CPU random generator warning

2020-05-20 Thread Bruno Chareyre
Question #690815 on Yade changed: https://answers.launchpad.net/yade/+question/690815 Bruno Chareyre posted a new comment: > if it's ignored makeCloud should generate different set of particles with same seed? Yes but no. :) If you check line 52 [1] you'll see that seed was not fully igno

Re: [Yade-users] [Question #690803]: bndCondIsPressure

2020-05-18 Thread Bruno Chareyre
Question #690803 on Yade changed: https://answers.launchpad.net/yade/+question/690803 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, > should I set bndCondIsPressure as [0,0,0,0,0,0] when there is no flux? Yes. > And as [0,0,1,0,0,0] when there is f

Re: [Yade-users] [Question #690546]: How to quickly reduce unbalancedForce to approximate 0?

2020-05-18 Thread Bruno Chareyre
Question #690546 on Yade changed: https://answers.launchpad.net/yade/+question/690546 Bruno Chareyre posted a new comment: A short comment for future reference: in my experience tricks like "calm()" are needed only when there is another problem in parameters or boundary conditions

Re: [Yade-users] [Question #690691]: setPermF broken?

2020-05-15 Thread Bruno Chareyre
Question #690691 on Yade changed: https://answers.launchpad.net/yade/+question/690691 Bruno Chareyre proposed the following answer: A dumb mis-placement of that line 196 [1] in a parallel loop. The result was actually non-deterministic. That was nasty bug... thanks. The fix is in branch

Re: [Yade-users] [Question #690655]: Testing the implémentation of a new contact law

2020-05-13 Thread Bruno Chareyre
Question #690655 on Yade changed: https://answers.launchpad.net/yade/+question/690655 Bruno Chareyre proposed the following answer: Hi, Unless you are familiar with compiling your own c++ and sort include/lib issues I would really recommend to proceed as Jan suggests, possibly in an even

Re: [Yade-users] [Question #690234]: Using O.forces without Ip2 and Law2

2020-04-27 Thread Bruno Chareyre
Question #690234 on Yade changed: https://answers.launchpad.net/yade/+question/690234 Status: Needs information => Answered Bruno Chareyre proposed the following answer: Or without InteractionLoop (same effect)? B -- You received this question notification because your team yade-us

Re: [Yade-users] [Question #689741]: Implémentation of capillary force during mechanical contact

2020-04-10 Thread Bruno Chareyre
Question #689741 on Yade changed: https://answers.launchpad.net/yade/+question/689741 Bruno Chareyre posted a new comment: > So my point is that a value for the capillary force may be calculated in case of penetrating particles I fully agree. From a theoretical standpoint there is no n

Re: [Yade-users] [Question #689741]: Implémentation of capillary force during mechanical contact

2020-04-07 Thread Bruno Chareyre
Question #689741 on Yade changed: https://answers.launchpad.net/yade/+question/689741 Bruno Chareyre proposed the following answer: > the Capillary force in ViscElCapMat is only defined for delta_n > 0 I don't think it is the case, else it would be a mistake in the code. I think aut

Re: [Yade-users] [Question #689676]: coordinate system, local or global

2020-04-03 Thread Bruno Chareyre
Question #689676 on Yade changed: https://answers.launchpad.net/yade/+question/689676 Bruno Chareyre proposed the following answer: > can I know the principal directions is in the global or local system? Hi, I'm guessing you refer to the local principal axis of one particle as "local

Re: [Yade-users] [Question #689671]: Error caused by "from builtins import range"

2020-04-02 Thread Bruno Chareyre
Question #689671 on Yade changed: https://answers.launchpad.net/yade/+question/689671 Status: Open => Answered Bruno Chareyre proposed the following answer: I don't know. Are you using an example script coming with the same version of yade? B -- You received this question notificat

Re: [Yade-users] [Question #689000]: Yade simulation freezes

2020-03-18 Thread Bruno Chareyre
Question #689000 on Yade changed: https://answers.launchpad.net/yade/+question/689000 Bruno Chareyre posted a new comment: > Case was updated on github. It is now working fine also some instructions were added. YADE case without CFD was added. Any link to those things? > inefficient t

Re: [Yade-users] [Question #689000]: Yade simulation freezes

2020-03-18 Thread Bruno Chareyre
Question #689000 on Yade changed: https://answers.launchpad.net/yade/+question/689000 Bruno Chareyre posted a new comment: Next time if question is answered please mark it answered and provide link to actual solution if it doesn't appear here. That thread is cryptic. Cheers B -- You received

Re: [Yade-users] [Question #689000]: Yade simulation freezes

2020-03-18 Thread Bruno Chareyre
Question #689000 on Yade changed: https://answers.launchpad.net/yade/+question/689000 Bruno Chareyre posted a new comment: > I'm doing it using runYade.sh script which is represented in git repository after commenting fluid coupling engine in scriptYade.py; but it shows a lot of errors.

Re: [Yade-users] [Question #689131]: Basic Problem using parallel run in Yade

2020-03-10 Thread Bruno Chareyre
Question #689131 on Yade changed: https://answers.launchpad.net/yade/+question/689131 Bruno Chareyre proposed the following answer: > You have anyway to compress your initial cloud This is not my suggestion. Accelerating makeCloud is efficiently exemplified in #13, instead. I was expecting s

Re: [Yade-users] [Question #689196]: How to add all particles to a new pack.SpherePack()

2020-03-09 Thread Bruno Chareyre
Question #689196 on Yade changed: https://answers.launchpad.net/yade/+question/689196 Bruno Chareyre proposed the following answer: > I'd like to ask that how to add all particles to a new pack.SpherePack(). Read the documentation of pack.SpherePack? [1] https://yade-dem.org/doc/yade.pack.h

Re: [Yade-users] [Question #689186]: How to stop the current calculation and jump to the next one in the batch mode on the condition that the current calculation takes too much time?

2020-03-09 Thread Bruno Chareyre
Question #689186 on Yade changed: https://answers.launchpad.net/yade/+question/689186 Bruno Chareyre proposed the following answer: Hi, There is nothing batch-specific in the question. It is up to you to run iterations or not, based on a condition. Either "while condition: O.run(N

Re: [Yade-users] [Question #689131]: Basic Problem using parallel run in Yade

2020-03-05 Thread Bruno Chareyre
Question #689131 on Yade changed: https://answers.launchpad.net/yade/+question/689131 Bruno Chareyre posted a new comment: > plot.plot() Not a minimal script. https://www.yade-dem.org/wiki/Howtoask (3) Please. Bruno -- You received this question notification because your team yade-us

Re: [Yade-users] [Question #689103]: deprec flag

2020-03-03 Thread Bruno Chareyre
Question #689103 on Yade changed: https://answers.launchpad.net/yade/+question/689103 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi Vasileios, it is supposed to work. There must be a syntax problem on your side I guess. Those macros are awesome but it is e

Re: [Yade-users] [Question #689025]: Difference in unbalancedForce() between yade and yadedaily

2020-03-03 Thread Bruno Chareyre
Question #689025 on Yade changed: https://answers.launchpad.net/yade/+question/689025 Bruno Chareyre posted a new comment: Ah... I see. If you plot the evolution of the unbalanced force it looks weird, with huge values (~1e3) appearing at a fixed frequency. The issue is that when

Re: [Yade-users] [Question #689025]: Difference in unbalancedForce() between yade and yadedaily

2020-03-03 Thread Bruno Chareyre
Question #689025 on Yade changed: https://answers.launchpad.net/yade/+question/689025 Bruno Chareyre posted a new comment: So you both believe there is no issue?... Beside unbalanced force, are there differences in the trajectories of the clump between 2018.02b and now? Bruno -- You received

Re: [Yade-users] [Question #689052]: How to understand the meaning of CohesionMoment.shear_creep in CohesiveFrictionalMaterial?

2020-03-01 Thread Bruno Chareyre
Question #689052 on Yade changed: https://answers.launchpad.net/yade/+question/689052 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, Creep implements a force relaxation like this: d(fs)/dt=-fs/c where "c" is the creeping viscosity. It is _not_ the

Re: [Yade-users] [Question #689058]: How to achieve a twisting/bending-caused bond break in Yade?

2020-03-01 Thread Bruno Chareyre
Question #689058 on Yade changed: https://answers.launchpad.net/yade/+question/689058 Bruno Chareyre posted a new comment: @Luc Do you mean that JCFpm has upper bounds for torques at interactions? I thought rolling friction in the CohesiveFrictional law was the only concrete example

Re: [Yade-users] [Question #689058]: How to achieve a twisting/bending-caused bond break in Yade?

2020-02-29 Thread Bruno Chareyre
Question #689058 on Yade changed: https://answers.launchpad.net/yade/+question/689058 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, 1. I don't know 2. Implementing an upper-bound for twisting and bending moments is trivial. I would actually suggest to

Re: [Yade-users] [Question #688979]: period triaxial test under cyclic shear load

2020-02-29 Thread Bruno Chareyre
Question #688979 on Yade changed: https://answers.launchpad.net/yade/+question/688979 Status: Open => Answered Bruno Chareyre proposed the following answer: By this you simply set velgrad[0,0]=velgrad[1,1]=velgrad[2,2]=0, it is redundant with setting velGrad. For keeping constant vol

Re: [Yade-users] [Question #689026]: Trouble with makeCloud's parameter "seed" and yadedaily

2020-02-28 Thread Bruno Chareyre
Question #689026 on Yade changed: https://answers.launchpad.net/yade/+question/689026 Bruno Chareyre proposed the following answer: "seed" works as usual after [1] (merged). B [1] https://gitlab.com/yade-dev/trunk/-/merge_requests/428 -- You received this question notification be

Re: [Yade-users] [Question #688979]: period triaxial test under cyclic shear load

2020-02-28 Thread Bruno Chareyre
Question #688979 on Yade changed: https://answers.launchpad.net/yade/+question/688979 Status: Open => Answered Bruno Chareyre proposed the following answer: > Am I right? Yes indeed. If you prescribe the strain with rate no volume change the volume will not change. Here "undrai

Re: [Yade-users] [Question #689026]: Trouble with makeCloud's parameter "seed" and yadedaily

2020-02-27 Thread Bruno Chareyre
Question #689026 on Yade changed: https://answers.launchpad.net/yade/+question/689026 Status: Open => Answered Bruno Chareyre proposed the following answer: Hello, thanks for reporting this, it sounds like a serious issue. It shouldn't be too difficult to fix though. Bug report here: ht

Re: [Yade-users] [Question #688979]: period triaxial test under cyclic shear load

2020-02-26 Thread Bruno Chareyre
Question #688979 on Yade changed: https://answers.launchpad.net/yade/+question/688979 Bruno Chareyre proposed the following answer: > Under the action of cyclic shear load, the effective stress gradually decreases as the number of cycles increases. That statement is generally wrong in b

Re: [Yade-users] [Question #688994]: pore pressure in periodic triaxial test

2020-02-26 Thread Bruno Chareyre
Question #688994 on Yade changed: https://answers.launchpad.net/yade/+question/688994 Status: Open => Answered Bruno Chareyre proposed the following answer: I'm indeed only responding to the questions on pore pressure here, since that's the only thing which does not appear in the ot

Re: [Yade-users] [Question #688980]: Calling MATLAB from YADE

2020-02-25 Thread Bruno Chareyre
Question #688980 on Yade changed: https://answers.launchpad.net/yade/+question/688980 Bruno Chareyre posted a new comment: A missing ref./ [1] http://yade-dem.org/doc/FEMxDEM.html#work-on-the-yade-side -- You received this question notification because your team yade-users is an answer contact

Re: [Yade-users] [Question #688980]: Calling MATLAB from YADE

2020-02-25 Thread Bruno Chareyre
Question #688980 on Yade changed: https://answers.launchpad.net/yade/+question/688980 Bruno Chareyre proposed the following answer: Oh wait, what is this? > "python yade test.py" This is not a possible yade invocation. Choose between python and yade (as explained in point 4),

Re: [Yade-users] [Question #688980]: Calling MATLAB from YADE

2020-02-25 Thread Bruno Chareyre
Question #688980 on Yade changed: https://answers.launchpad.net/yade/+question/688980 Status: Open => Answered Bruno Chareyre proposed the following answer: Dear Poyan, There can be many reasons for such a segfault unfortunately. I have absolutely no experience with interfacing mat

Re: [Yade-users] [Question #688950]: period triaxial test and apply shear stress

2020-02-24 Thread Bruno Chareyre
Question #688950 on Yade changed: https://answers.launchpad.net/yade/+question/688950 Bruno Chareyre posted a new comment: Hopefully the solution will appear more clearly in the documentation of velGrad after [1]. Nevertheless it was already clearly indicated there that assigning a single

Re: [Yade-users] [Question #688968]: Problem in consolidation

2020-02-24 Thread Bruno Chareyre
Question #688968 on Yade changed: https://answers.launchpad.net/yade/+question/688968 Bruno Chareyre posted a new comment: Hi Xu, Please elaborate a question. It is clear that a rectangle is not always a square, but... what is that all about? Bruno -- You received this question notification

Re: [Yade-users] [Question #688906]: unexpected "exit" message when running a yade code on a cluster

2020-02-24 Thread Bruno Chareyre
Question #688906 on Yade changed: https://answers.launchpad.net/yade/+question/688906 Bruno Chareyre posted a new comment: The answers numbered #1 and #4 in this page, sorry. B -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #688965]: How to use multi-cores in yade-batch mode

2020-02-24 Thread Bruno Chareyre
Question #688965 on Yade changed: https://answers.launchpad.net/yade/+question/688965 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, I think it is answered in the batch section of documentation [1] and in the examples (examples/test/batch), else please tell

Re: [Yade-users] [Question #688906]: unexpected "exit" message when running a yade code on a cluster

2020-02-24 Thread Bruno Chareyre
Question #688906 on Yade changed: https://answers.launchpad.net/yade/+question/688906 Status: Open => Answered Bruno Chareyre proposed the following answer: Your script is for python2, I can't run it sorry. Did you read #1 (mostly unanswered still) and #4 by any chance? #4 would clea

Re: [Yade-users] [Question #688906]: unexpected "exit" message when running a yade code on a cluster

2020-02-24 Thread Bruno Chareyre
Question #688906 on Yade changed: https://answers.launchpad.net/yade/+question/688906 Status: Open => Answered Bruno Chareyre proposed the following answer: > How can I disable the qt interface in a script ?? Please read https://yade-dem.org/doc/introduction.html Bruno -- You re

Re: [Yade-users] [Question #688945]: Compiled Yade plot error in batch mode on Ubuntu 18.04

2020-02-24 Thread Bruno Chareyre
Question #688945 on Yade changed: https://answers.launchpad.net/yade/+question/688945 Bruno Chareyre proposed the following answer: > Could you lend me some instructions about the confirm by simple pyplot, please? The error says: "AttributeError: 'Line2D' object has no attribute '

Re: [Yade-users] [Question #688837]: calculate the mass of the particles

2020-02-21 Thread Bruno Chareyre
Question #688837 on Yade changed: https://answers.launchpad.net/yade/+question/688837 Bruno Chareyre posted a new comment: > TypeError: isBodyInCylinder () takes exactly 3 arguments (0 give) Dear Estefany, Please keep in mind point 5 in [1]. Although Jan may keep replying the questions beca

Re: [Yade-users] [Question #688906]: unexpected "exit" message when running a yade code on a cluster

2020-02-21 Thread Bruno Chareyre
Question #688906 on Yade changed: https://answers.launchpad.net/yade/+question/688906 Status: Open => Answered Bruno Chareyre proposed the following answer: Hello, [1] is simply  the message when you hit ctrl+d in a ipython shell. What's the precise meaning of "on line"? Did yo

Re: [Yade-users] [Question #688685]: permeability - PFV

2020-02-21 Thread Bruno Chareyre
Question #688685 on Yade changed: https://answers.launchpad.net/yade/+question/688685 Status: Open => Answered Bruno Chareyre proposed the following answer: You could filter out external elements and use local velocity to extract flux in the core. That's not straightforward but it co

Re: [Yade-users] [Question #688771]: run with Yadedaily

2020-02-20 Thread Bruno Chareyre
Question #688771 on Yade changed: https://answers.launchpad.net/yade/+question/688771 Bruno Chareyre posted a new comment: Hi, I checked you script. The problem is that the automatic verletDist is based on minimum particle size. As it turns out that it doesn't lead to a wise decision in your

Re: [Yade-users] [Question #688685]: permeability - PFV

2020-02-18 Thread Bruno Chareyre
Question #688685 on Yade changed: https://answers.launchpad.net/yade/+question/688685 Bruno Chareyre posted a new comment: Hi, Could you please post the script without walls which gives the crash? Bruno -- You received this question notification because your team yade-users is an answer contact

Re: [Yade-users] [Question #688771]: run with Yadedaily

2020-02-14 Thread Bruno Chareyre
Question #688771 on Yade changed: https://answers.launchpad.net/yade/+question/688771 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi, it depends on "test.py" a little (the content of it)... therefore I have no idea. Bruno -- You received

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