The Gaia AVU-GSR parallel solver: preliminary studies of a LSQR-based application in perspective of exascale systems

Valentina Cesare, Ugo Becciani, Alberto Vecchiato +6

The Gaia Astrometric Verification Unit-Global Sphere Reconstruction (AVU-GSR) Parallel Solver aims to find the astrometric parameters for $\sim$10${}^8$ stars in the Milky Way, the a…