Adapting Matrix-Vector-Multiply Wavefront Reconstruction to SMP

In adaptive optics systems, the process time of wave front controller is a critical parameter. For a fixed frame rate, decreasing the process time results in higher control bandwidth. Among the process steps of a wave front controller, wave front reconstruction is a time consuming task. In this paper, we parallelized wave front reconstruction algorithm on a cutting edge shared-memory eight-core DSP to reduce process time. The conducted experiment shows that even using the most computation and memory intensive matrix-vector-multiply (MVM) reconstruction algorithm, performance requirements can be met with reconstruction latency around 130us in a 913 actuators AO system. With parallelization of the reconstruction algorithm, it´s possible. to apply high frame rate in the system and easy to scale up to larger systems with more actuators.