GPU CUDA Solver ERROR

Javier De La Cruz_22434
Javier De La Cruz_22434 New Altair Community Member
edited December 2023 in Community Q&A

I have this error trying to do a Simulation with CUDA. ERROR   : GPU CUDA Solver : The last timestep was not downloaded from GPU to CPU correctly and the simulation data may be corrupted. It is recommended to revert to an earlier saved timestep and save the simulation at that point.

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Answers

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited December 2023

    Hi Javier,


    It maybe that the GPU ran out of memory?  The simulator predicts the amount of memory required but the addition of more particles during the simulation can increase the memory used.

     

    If you rewind one save point and continue does this run OK?  You could change the precision in the simulator settings, mixed precision uses less memory than double precision and may help in this instance.


    Regards

    Stephen

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