Adaptive Optics Simulation for the World's Largest Telescope on Multicore Architectures with Multiple GPUs

Hatem Ltaief, Damien Gratadour, Ali Charara, Eric Gendron

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

We present a high performance comprehensive implementation of a multi-object adaptive optics (MOAO) simulation on multicore architectures with hardware accelerators in the context of computational astronomy. This implementation will be used as an operational testbed for simulating the de- sign of new instruments for the European Extremely Large Telescope project (E-ELT), the world's biggest eye and one of Europe's highest priorities in ground-based astronomy. The simulation corresponds to a multi-step multi-stage pro- cedure, which is fed, near real-time, by system and turbulence data coming from the telescope environment. Based on the PLASMA library powered by the OmpSs dynamic runtime system, our implementation relies on a task-based programming model to permit an asynchronous out-of-order execution. Using modern multicore architectures associated with the enormous computing power of GPUS, the resulting data-driven compute-intensive simulation of the entire MOAO application, composed of the tomographic reconstructor and the observing sequence, is capable of coping with the aforementioned real-time challenge and stands as a reference implementation for the computational astronomy community.
Original languageEnglish (US)
Title of host publicationProceedings of the Platform for Advanced Scientific Computing Conference on ZZZ - PASC '16
PublisherAssociation for Computing Machinery (ACM)
ISBN (Print)9781450341264
DOIs
StatePublished - Jun 2 2016

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