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Activity
    Anders Damsgaard
    @anders-dc
    test
    This message was deleted
    Anders Damsgaard
    @anders-dc
    test
    test
    this is a test from gitter-irc f(x)=x
    Anders Damsgaard
    @anders-dc
    hlep
    s/help/help/
    Anders Damsgaard
    @anders-dc
    test
    Anders Damsgaard
    @anders-dc
    5/15
    Anshuman Goswami
    @anshumang
    ping
    Anders Damsgaard
    @anders-dc
    @anshumang pong
    @anshumang I'll get back to you by mail later this weekend
    Anshuman Goswami
    @anshumang
    great !
    thanks for looking into this
    Anshuman Goswami
    @anshumang
    @anders-dc just checking back...did you get a chance to look?
    Anders Damsgaard
    @anders-dc
    anshumang: please try the file python shear-test.py. You can increase the number of particles if you want (line 14).
    anshumang: the script first spawns particles randomly in a large space and then lets them fall to the bottom. Afterwards, they are consolidated in a biaxial setup with periodic boundaries under a given normal stress. Finally, they are sheared at the same normal stress at a given shear velocity.
    anshumang: also, apologies for the late reply
    Anshuman Goswami
    @anshumang
    Hi Anders, thanks a lot for following up...I am trying out what you suggested...
    Getting the following error when running shear-test.py -
    NameError: name 'Spherebin' is not defined
    Anders Damsgaard
    @anders-dc
    anshumang: alright, that script was a bit old so it needed a couple of fixes. Please run git pull and try it again
    Anders Damsgaard
    @anders-dc
    anshumang: I can unfortunately not test it on my own system. The GPU's are busy finishing simulations for my thesis
    Anshuman Goswami
    @anshumang
    :+1: works, let you know once I run a CUPTI profile on it to get the kernel running times....
    Anshuman Goswami
    @anshumang
    I see 5 kernels besides the thrust sorting kernels in the CUPTI trace....namely, reorderArrays, topology, interact, integrate, calcParticleCellID...is that what you expect?
    None of these have 3D grids...and all of their running times are less than 1ms...actually, those are two things which I need..
    Any thoughts?....if you are busy with your thesis now, never mind...
    Anders Damsgaard
    @anders-dc
    anshumang: thanks for the feed back! The first part of the model run is going to involve very little grain-interaction, since the particles aren't initially touching. As the granular packing becomes denser and there are more contacts per particle, the topology and interact kernels should become heavier
    anshumang: the particles are handled on a 1d grid. The optional fluid computations are done on a 3d grid
    Anshuman Goswami
    @anshumang
    Got it, how do I enable the optional fluid computations?
    Anders Damsgaard
    @anders-dc
    anshumang: if you just want to test it out, you can add init.initFluid(cfd_solver=1) to line 43 in shear-test.py
    Zhang HaoLong
    @zhanghlHUST
    Dear Anders, I'm working on a program coupling LBM(d3Q19) and DEM(JKR model) together, with MPI. I meet a problem when test it , And I think the tangential friction cause error. And I read your code ( the contactmodels.cuh ), I wonder if I can have a further communication with you through email ?
    your code help a lot, but I still confused about the detail. And I am working on describe the detail of my implementation
    Zhang HaoLong
    @zhanghlHUST
    @anders-dc
    I wrote you a email, have you checked it?
    Anders Damsgaard
    @anders-dc
    Sorry for the slow reply, I hope you found the email response useful. My new email is andersd@princeton.edu. The UCSD address is no longer active.
    Anders Damsgaard
    @anders-dc
    hi all, feel free to let me know if you are interested in doing DEM modeling, or have any questions specific to sphere that you would like to ask.
    Anders Damsgaard
    @anders-dc
    Hi all, the git repository has moved to git://src.adamsgaard.dk/sphere. There's a web interface at https://src.adamsgaard.dk/sphere. Let me know if this causes any issues
    A Dinesh
    @dineshadepu

    Hi Anders,

    I am unable to clone the repository through git clone. Can you provide an option like `download as zip'?

    Anders Damsgaard
    @anders-dc
    dineshadepu: Hi! Could you please double check the command? git clone git://src.adamsgaard.dk/sphere should work. Otherwise, I am happy to make a zip
    A Dinesh
    @dineshadepu
    It is probably waiting from the opposite side.
    
     ----DESKTOP DESKTOP DESKTOP----------------------------------
     dinesh@desktop /home/dinesh/phd/code/cpp $  
    |  DESKTOP DESKTOP=> git clone git://src.adamsgaard.dk/sphere
    Cloning into 'sphere'...
    I am inside an institute, so probably that might be a reason
    Anders Damsgaard
    @anders-dc
    what if you try git clone -v git://src.adamsgaard.dk/sphere ?
    The git port could be blocked by firewall
    A Dinesh
    @dineshadepu
    ----DESKTOP DESKTOP DESKTOP----------------------------------
    dinesh@desktop /home/dinesh/phd/code/cpp $
    | DESKTOP DESKTOP=> git clone -v git://src.adamsgaard.dk/sphere
    Cloning into 'sphere'...
    Looking up src.adamsgaard.dk ... done.
    Connecting to src.adamsgaard.dk (port 9418) ...
    Anders Damsgaard
    @anders-dc
    ok, as an immediate remedy, let me make a zip. I will think about adding git over https for a long-term solution
    A Dinesh
    @dineshadepu
    Thank you.
    Anders Damsgaard
    @anders-dc