Massively parallel algorithms for real-time wavefront control of a dense adaptive optics system

Amir Fijany; Mark H. Milman; David C. Redding

doi:10.1117/12.174174

1 May 1994 Massively parallel algorithms for real-time wavefront control of a dense adaptive optics system

Amir Fijany, Mark H. Milman, David C. Redding

Proceedings Volume 2121, Laser Power Beaming; (1994) https://doi.org/10.1117/12.174174
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Massively parallel algorithms and architectures for real-time wavefront control of a dense adaptive optic system (SELENE) are presented. We have already shown that the computation of a near optimal control algorithm for SELENE can be reduced to the solution of a discrete Poisson equation on a regular domain. Although this represents an optimal computation, due to the large size of the system and the high sampling rate requirement, the implementation of this control algorithm poses a computationally challenging problem since it demands a sustained computational throughput of the order of 10 GFlops. We develop a novel algorithm, designated as Fast Invariant Imbedding algorithm, which offers a massive degree of parallelism with simple communication and synchronization requirements. We also discuss two massively parallel, algorithmically specialized, architectures for low-cost and optimal implementation of the Fast Invariant Imbedding algorithm.

Citation Download Citation

Amir Fijany, Mark H. Milman, and David C. Redding "Massively parallel algorithms for real-time wavefront control of a dense adaptive optics system", Proc. SPIE 2121, Laser Power Beaming, (1 May 1994); https://doi.org/10.1117/12.174174

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