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- W3048582808 abstract "Calculations of X-ray wave propagation in large objects are needed for modeling diffractive X-ray optics and for optimization-based approaches to image reconstruction for objects that extend beyond the depth of focus. We describe three methods for calculating wave propagation with large arrays on parallel computing systems with distributed memory: (1) a full-array Fresnel multislice approach, (2) a tiling-based short-distance Fresnel multislice approach, and (3) a finite difference approach. We find that the first approach suffers from internode communication delays when the transverse array size becomes large, while the second and third approaches have similar scaling to large array size problems (with the second approach offering about three times the compute speed)." @default.
- W3048582808 created "2020-08-18" @default.
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- W3048582808 date "2020-09-21" @default.
- W3048582808 modified "2023-09-26" @default.
- W3048582808 title "Comparison of distributed memory algorithms for X-ray wave propagation in inhomogeneous media" @default.
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- W3048582808 doi "https://doi.org/10.1364/oe.400240" @default.
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