Found bugs and problems with beta version 4.3?

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  • Hi all,

    I've been playing with the coupling with project Chrono. I've had a problem.
    I'm simulating a gate closing on its on weigth to prevent water from gonig back.
    My problem is that when there is no water to move the gate, it tends to "stick" or " fuse" with the opening the gate is closing and then when water comes back it doesn't move anymore.
    I've tried to add more layers to both the gate and the openning but I had no luck...

    I'm using a hinge to articulate the gate, is there any way to restrict the range of possible rotations other than putting object to collide (and fuse) with ?

    The situation when everything is OK


    Now the gate stick with the opening...


    Otherwise the coupling is really great !

    Thanks for your help.
  • Hi all,

    I've been testing the new open boundary implementation on a simple case before to move on much more complicated cases connected to my researches.
    I've noticed that if the last row of particles in the buffer region is exactly coincident with the last row of boundary particles the simulation suddenly crashes using GPU computing, while it proceeds smoothly with CPU computing.

    Here attached the output displayed on the terminal and my simulation setup.

    -----------------------------------------------------------------------------------------------------------------------------
    GPU computing
    -----------------------------------------------------------------------------------------------------------------------------

    **JSphGpu: Requesting gpu memory for 60299 particles: 12.4 MB.
    **CellDiv: Requested gpu memory for 64875 particles: 0.5 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    Allocated memory in CPU: 5426910 (5.18 MB)
    Allocated memory in GPU: 13664400 (13.03 MB)
    Part_0000 55699 particles successfully stored
    Particles new: 3582 (total: 3582)

    [Initialising simulation (q9x50yg2) 09-11-2018 13:18:36]
    PART PartTime TotalSteps Steps Time/Sec Finish time
    ========= ============ ============ ======= ========= ===================
    **JSphGpu: Requesting gpu memory for 62737 particles: 12.9 MB.
    **CellDiv: Requested gpu memory for 70655 particles: 0.5 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 66319 particles: 13.7 MB.
    **CellDiv: Requested gpu memory for 77629 particles: 0.6 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 71095 particles: 14.6 MB.
    **CellDiv: Requested gpu memory for 86991 particles: 0.7 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 76180 particles: 15.7 MB.
    **CellDiv: Requested gpu memory for 87001 particles: 0.7 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 79453 particles: 16.4 MB.
    **CellDiv: Requested gpu memory for 99945 particles: 0.8 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 87463 particles: 18.0 MB.
    **CellDiv: Requested gpu memory for 99955 particles: 0.8 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 92587 particles: 19.1 MB.
    **CellDiv: Requested gpu memory for 118869 particles: 0.9 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 106268 particles: 21.9 MB.
    **CellDiv: Requested gpu memory for 118879 particles: 0.9 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 114079 particles: 23.5 MB.
    **CellDiv: Requested gpu memory for 147345 particles: 1.1 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 136357 particles: 28.1 MB.
    **CellDiv: Requested gpu memory for 147355 particles: 1.1 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 148705 particles: 30.6 MB.
    **CellDiv: Requested gpu memory for 191343 particles: 1.5 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 185252 particles: 38.2 MB.
    **CellDiv: Requested gpu memory for 191353 particles: 1.5 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 204823 particles: 42.2 MB.
    **CellDiv: Requested gpu memory for 280631 particles: 2.2 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 264235 particles: 54.4 MB.
    **CellDiv: Requested gpu memory for 280641 particles: 2.2 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 295567 particles: 60.9 MB.
    **CellDiv: Requested gpu memory for 416508 particles: 3.2 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 392112 particles: 80.8 MB.
    **CellDiv: Requested gpu memory for 416518 particles: 3.2 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 442429 particles: 91.1 MB.
    **CellDiv: Requested gpu memory for 636384 particles: 4.9 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 598973 particles: 123.4 MB.
    **CellDiv: Requested gpu memory for 636394 particles: 4.9 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 680035 particles: 140.1 MB.
    **CellDiv: Requested gpu memory for 992136 particles: 7.7 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.

    *** WARNING: 1 DTs adjusted to DtMin (t:0.00128132, nstep:11)

    **JSphGpu: Requesting gpu memory for 933710 particles: 192.3 MB.
    **CellDiv: Requested gpu memory for 992146 particles: 7.7 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 1064503 particles: 219.3 MB.
    **CellDiv: Requested gpu memory for 1567763 particles: 12.1 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 1475309 particles: 303.9 MB.
    **CellDiv: Requested gpu memory for 1567773 particles: 12.1 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 1686577 particles: 347.4 MB.
    **CellDiv: Requested gpu memory for 2499143 particles: 19.3 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 2351645 particles: 484.4 MB.
    **CellDiv: Requested gpu memory for 2499153 particles: 19.3 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    **JSphGpu: Requesting gpu memory for 2693119 particles: 554.8 MB.
    **CellDiv: Requested gpu memory for 4006150 particles: 30.9 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    Progress 0.01% in 103.9s. Estimated finish time: 18-11-2018 11:08:37
    **JSphGpu: Requesting gpu memory for 3769580 particles: 776.5 MB.
    **CellDiv: Requested gpu memory for 4006160 particles: 30.9 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.

    **JSphGpu: Requesting gpu memory for 4321735 particles: 890.2 MB.
    **CellDiv: Requested gpu memory for 6444537 particles: 49.7 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.
    Progress 0.01% in 265.6s. Estimated finish time: 01-12-2018 22:56:10
    **JSphGpu: Requesting gpu memory for 6063851 particles: 1249.1 MB.
    **CellDiv: Requested gpu memory for 6444547 particles: 49.7 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.

    *** WARNING: 10 DTs adjusted to DtMin (t:0.00137212, nstep:15)

    **JSphGpu: Requesting gpu memory for 6956893 particles: 1433.1 MB.
    **CellDiv: Requested gpu memory for 10368154 particles: 80.0 MB.
    **CellDiv: Requested gpu memory for 7102 cells (CellMode=2H): 0.1 MB.

    *** std::bad_alloc: temporary_buffer::allocate: get_temporary_buffer failed

    Execution aborted
  • -----------------------------------------------------------------------------------------------------------------------------
    CPU computing
    -----------------------------------------------------------------------------------------------------------------------------

    **JSphCpu: Requesting cpu memory for 60299 particles: 10.6 MB.
    **CellDiv: Requested cpu memory for 64875 particles: 2.0 MB.
    Allocated memory in CPU: 13284692 (12.67 MB)
    Part_0000 55699 particles successfully stored
    Particles new: 3582 (total: 3582)

    [Initialising simulation (kdm2y5cb) 09-11-2018 14:28:28]
    PART PartTime TotalSteps Steps Time/Sec Finish time
    ========= ============ ============ ======= ========= ===================
    **JSphCpu: Requesting cpu memory for 62737 particles: 11.0 MB.
    Part_0001 0.020008 218 218 854.98 09-11-2018 16:50:57
    Part_0002 0.040013 440 222 852.23 09-11-2018 16:50:43
    Particles new: 186 (total: 3768)
    Part_0003 0.060011 662 222 877.23 09-11-2018 16:52:02
    Particles new: 199 (total: 3967)


    Thanks in advance for the help
  • Dear TPouzol,

    Can you please annex a minimal working example with the problem? I can't seem to understand/reproduce it.

    Regards,
    Ricardo
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