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Features
- Regular grid only (I will had the curviliear grid support in the future)
- 1 sediment class
- 1 sediment layer
- Structures file (i.e. non erodible layer)
- Separate bottom friction (i.e. cf and fW) for bedrock and sediment layer
XBeach_GPU is a lightweight GPU version of XBeach. This model was never developed to compete with the multitude of features of the latest feature of XBeach but instead was developed to include the most essential features and runs really fast. Because the model runs on the graphic card there is are restrictions on the model. For example the model operates on float decimal number which provide an error of at least 10-7. In the algorithm of the model this error is often accumulated leading to difference in wave heights of the order of millimeter. The model also has no restriction on the size of the grid that you can run but is optimized for grid size that is a factor of 16 in both x and y direction. This allow for a maximum occupancy of the GPU memory bandwidth. If you have an existing grid that doesn't fit this optimum condition the model will run.