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Next: Discussion Up: Yang et al.: GPU Previous: Marmousi model

Conclusion

We have implemented GPU-based FWI using the wavefield reconstruction strategy, which averts the issue of CPU-GPU data transfer. The Clayton-Enquist absorbing boundary was utilized to maintain the efficiency of GPU computation. A hybrid nonlinear conjugate gradient method combined with parallel reduction technique was adopted in the FWI optimization. The validity of our implementation for GPU-based FWI was demonstrated using a numerical test.




2021-08-31