Hi Sarina, If you are sure that the same script runs differently on V100 and A100, then it could be related to the CUDA version. Did you compile the code with CUDA 11 or above?
Other than this, I don't have a clear idea. If the script can be shared, we might understand it better. Thank you, Ruochun On Tuesday, October 17, 2023 at 7:16:30 PM UTC-5 [email protected] wrote: > Correction: > BallCosim.cpp, not the balldrop.cpp > > On Tuesday, October 17, 2023 at 5:13:16 PM UTC-7 sarina shahhosseini wrote: > >> Hi all, >> I've been working on a simulation project involving a system of connected >> rigid bodies in ::GPU (using ChLinkMotorRotation and ChLinkMotorLinear). >> The code structure is similar to the balldrop.cpp demo, with the difference >> being that it involves a connected system of rigid bodies controlled by >> motors. >> I've recently encountered the following error during the simulation: >> >> *ERROR! Sphere 440770 has invalid SD 4294967295, max is 139920.* >> >> This error occurs approximately 1 second into the simulation when the >> robot is already in contact with particles ( So the particle initialization >> went smoothly, and the rendered output seems reasonable). So, I am unsure >> why the particle is in an invalid subdomain. I've tried reducing the time >> step to a significantly smaller value (1e-7) and simplifying the mesh, but >> the issue persists. >> I previously used a V100 GPU without encountering this issue, but now >> I've switched to an A100 GPU. Could this somehow be related? >> >> I would appreciate your comments! >> > -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/1b6c7c19-23f9-43c9-b99f-9201c3372afan%40googlegroups.com.
