GPU CUDA Known Issues and Limitations

The EDEM 2022.3 GPU CUDA Solver Engine contains the following known issues.

Data Saving

All data saved to the EDEM .h5 files is carried out using the CPU. The OpenCL and CUDA solver engines have different ways of handling timesteps that require data saves. Any timesteps that require a data save when the OpenCL solver is the selected engine will be run fully on the CPU. There is no passing simulation data from the GPU to the CPU (unless specified within a GPU-API plugin). The is not the same for the CUDA solver. With the CUDA solver as the selected engine, all timesteps are performed on the GPU and the data is passed back to the CPU for saving the data.

Contact Models

For a full list of compatible models see GPU compatibility section.

Track Collisions

Track collisions is not supported in EDEM GPU CUDA.

Time Integration

Position Verlet and Velocity Verlet time integration methods are not supported in EDEM GPU CUDA. Only Euler time integration is supported.

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