Diffusion-PDE-based smoothing #1725
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As a small test, I use the original xsmooth_sem and the new version xsmooth_sem_pde to smooth a Gauss function shown in the following figure: |
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I keep getting errored Travis CI tests. Looks like all tests on ppc64le time out without receiving any output, not sure why ... |
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there might be some issues on travis server side... will merge and see with future PRs if this will be fixed. |
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An fast implementation of smoothing based on diffusion PDE, similar to laplacian_smoothing_sem in SPECFEM3D_Globe, but with a different implementation. It performs smoothing by solving diffusion PDE with explicit time stepping, without the need to solve linear system. It has identical command-line argument with smooth_sem, and is aimed to exactly replicate the result of smooth_sem.