MAVIS RTC: a COSMIC-based real-time and low latency GPU accelerated system for adaptive optics

Julien Bernard; Florian Ferreira; Nicolas Doucet; Arnaud Sevin; Jesse Cranney; François Rigaut; Damien Gratadour; David Brodrick

doi:10.1117/12.3019054

26 July 2024 MAVIS RTC: a COSMIC-based real-time and low latency GPU accelerated system for adaptive optics

Julien Bernard, Florian Ferreira, Nicolas Doucet, Arnaud Sevin, Jesse Cranney, François Rigaut, Damien Gratadour, David Brodrick

Author Affiliations +

Proceedings Volume 13101, Software and Cyberinfrastructure for Astronomy VIII; 131011J (2024) https://doi.org/10.1117/12.3019054
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

MCAO Assisted Visible Imager and Spectrograph (MAVIS) is a new instrument for ESO’s VLT AOF. MAVIS embarks an Adaptive Optics (AO) system to cancel the image blurring induced by atmospheric turbulence. The latency and computational load induced by the system dimensioning led us to design a new software and hardware architecture for the Real Time Controller (RTC). Notably, the COSMIC framework harnesses GPUs for accelerated computation and is adept at scaling across multiple processes without overhead using shared memory. Employing a graph-based architecture where operations are intuitively represented as nodes. It aims at simplifying design, implementation, testing and integration by relying on robust concepts and useful tools. Recent updates have further enhanced its versatility, cementing its potential as a future-proof, extensible framework for AO advancements and their development process.

Conference Presentation

Citation Download Citation

Julien Bernard, Florian Ferreira, Nicolas Doucet, Arnaud Sevin, Jesse Cranney, François Rigaut, Damien Gratadour, and David Brodrick "MAVIS RTC: a COSMIC-based real-time and low latency GPU accelerated system for adaptive optics", Proc. SPIE 13101, Software and Cyberinfrastructure for Astronomy VIII, 131011J (26 July 2024); https://doi.org/10.1117/12.3019054

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