CUDA FD Orders

Source directory:

• examples/wavefields/cuda_fd_orders/

These scripts compare PropCUDA wavefields under different spatial orders on a uniform 2D model.

Scripts

• acoustic_fd_orders.py: acoustic wavefield comparison for orders 2, 6, 10, 14
• elastic_fd_orders.py: elastic vx and vz comparison for orders 2, 6, 10, 14

The source is placed at the center of the model and outputs are written to the local outputs/ directory.

How to Run

Step 1. Run the acoustic comparison.

python acoustic_fd_orders.py

Step 2. Run the elastic comparison.

python elastic_fd_orders.py

Example Figures

acoustic_fd_orders.png: the acoustic wavefield snapshot comparison across different finite-difference spatial orders on the same uniform model.

elastic_fd_orders_vz.png: the elastic vz wavefield snapshot comparison across the same set of spatial orders, useful for checking how elastic propagation changes as stencil order increases.