Hello Ruochun, 

Thank you for constantly following up and answering my posts. I have 
suppressed the tip of the cone and tried to run the simulation but I am 
still getting exactly the same error. 

Thank you so much, 

On Friday, July 8, 2022 at 12:53:40 AM UTC-7 Ruochun Zhang wrote:

> Hi Mohammad,
>
> Then it is quite surprising. This error means a sphere is touching 30 
> objects, mesh facets and other spheres included. What comes close to being 
> the cause is still in my opinion, the tip of the mesh. I'd suggest you 
> modify your script a bit so it represents a scenario where a cylinder is 
> dropped (i.e. the same part, but without the tip) onto the granular bed. 
> Run it and if it works you know the problem is the tip mesh, and I have a 
> few ideas on how to resolve that. If that still does not work, then in the 
> simulation at some point the physics must've gone wild somehow, and that'd 
> take a bit more effort to find.
>
> Also, make sure you *rebuild Chrono each time* you make change to the 
> source code, such as changing MAX_SPHERES_TOUCHED_BY_SPHERE. You can change 
> it back to 12 or something smaller like 20 when you are doing the testing.
>
> Thank you,
> Ruochun
>
> On Thursday, July 7, 2022 at 11:32:39 PM UTC-5 [email protected] wrote:
>
>> Hi Ruochun,
>>
>> I have tried the solution you told me about in your post. I have changed 
>> the *MAX_SPHERES_TOUCHED_BY_SPHERE to be 30. *However, now, I am getting 
>> the following error (*error file: *unspecified launch failure in 
>> ChGpu_SMC_trimesh.cu 754,     *Output file:* Sphere 16054 is touching 12 
>> spheres already and we just found another!!!). Also, I have tried to change 
>> the mesh to have less slender elements near the tip however I still got the 
>> same error. 
>>
>> Thank you so much, 
>> On Wednesday, July 6, 2022 at 11:21:00 AM UTC-7 Mohammad Wasfi wrote:
>>
>>> Hi Freya, 
>>>
>>> My coda version is 11.4. I have an intel GPU and it still works for me 
>>> so I am not sure how the compatibility of the GPU affects the animation. 
>>>
>>> This page should have everything you need about ParaView: 7. Animation 
>>> — ParaView Documentation 5.10.0 documentation 
>>> <https://docs.paraview.org/en/latest/UsersGuide/animation.html#:~:text=In%20ParaView%2C%20you%20can%20create%20animations%20by%20recording,the%20parameters%2C%20you%20can%20play%20through%20the%20animation.>
>>>
>>> In short, I do the following steps;
>>> 1- open my .csv files obtained from my Chrono simulation in ParaView ( 
>>> ParaView groups all files under the one.). 
>>> 2- right click on the files the .csv --> add filter --> 
>>> alphabetical-->Table to points.
>>> 3- assign the x,y, and z columns. 
>>> the window should have a visualization of your results ( you could 
>>> change the representation to what you think is best under the 
>>> representations menu).
>>> 4- file --> save animation. 
>>>
>>> Hope this helps,
>>> Mohammad
>>> On Tuesday, July 5, 2022 at 2:42:52 AM UTC-7 [email protected] wrote:
>>>
>>>> Hi Mohammad,
>>>>
>>>> can I ask how you create the Chrono video with Paraview? I want to 
>>>> create video of my Chrono example with Paraview too. Which CUDA version 
>>>> are 
>>>> you using ? I want to install chrono::gpu and I am trying CUDA 11.7 but it 
>>>> does not work correctly, maybe because my GPU is not CUDA compatible. 
>>>> Perhaps later on if I have better GPU.
>>>>
>>>> Thanks for sharing the video.
>>>>
>>>> Le mar. 5 juil. 2022 à 01:28, Mohammad Wasfi <[email protected]> a 
>>>> écrit :
>>>>
>>>>> Hi,
>>>>>
>>>>> Thank you so much for your help. I really appreciate it. I will 
>>>>> definitely rebuild Chrono again using the latest version and will let you 
>>>>> know if any changes occur. For the cone, I have implemented a motor that 
>>>>> ensures a constant velocity of the cone. My understanding is that the 
>>>>> motor 
>>>>> applies as much force as needed to maintain a constant velocity of the 
>>>>> cone 
>>>>> which is the reason why the cone does not stop in the bed. I have 
>>>>> generated 
>>>>> another video using ParaView (
>>>>> https://drive.google.com/file/d/1q-hgTcJY62kLblqr37sFoHX-4goOwbzR/view?usp=sharing)
>>>>>  
>>>>> and it shows that the cone pushes the particles away as it moves. Also, 
>>>>> non 
>>>>> of the particles get inside the cone. I have included the .cpp file 
>>>>> needed 
>>>>> to run this simulation to avoid any confusion.
>>>>>
>>>>> Forgive me I had to upload the video as a link due to size limitations 
>>>>> for the post. 
>>>>>
>>>>> Thank you so much for your help and please let me know if there is 
>>>>> anything else you want me to provide to you, 
>>>>>
>>>>> Mohammad, 
>>>>>
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>>>>>  
>>>>> <https://groups.google.com/d/msgid/projectchrono/6d42e6d0-d9f3-4612-b5ea-ad853ac2b082n%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>>> .
>>>>>
>>>>
>>>>
>>>> -- 
>>>> С наилучшими пожеланиями, Богиня Фрейя
>>>> Atenciosamente, Freya the Goddess
>>>> Meilleurs voeux, Freya the Goddess
>>>> Liebe Grüße, Freya the Goddess
>>>> Best wishes, Freya the Goddess
>>>> よろしくお願いします、Freya the Goddess
>>>> 最好的祝福,Freya the Goddess
>>>> Matakwa mema, Freya the Goddess
>>>> مع أطيب التمنيات ، فريا الإلهة
>>>>
>>>

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