Supercomputer "Bura" as a software processing centre for Rubin-related science

Large long-term surveys such as LSST at Vera C. Rubin Observatory will obtain 

a huge, petabyte-scale of data that would need substantial computer resources in order to be processed, analysed and visualised. Therefore, supercomputers and high- 

performing computing (HPC) facilities play an important role in Rubin/LSST. With the start of Rubin/LSST observations, and the current availability of terabyte-size DP1, as well as of DP2 in the next year, real observations can be used for scientific analysis and final preparation for the huge amount of data expected in Data Release 1.  

As a part of LSST Vera Rubin Observatory in-kind contribution of Croatian participation group (CPG), HPC supercomputer ’Bura’ at University of Rijeka acts as as a software processing centre. In this talk, the main features of HPC ’Bura’ will be presented, as well as the recent updates, training opportunities and possibilities of its use by Rubin/LSST scientific community, mainly (but not exclusively) in the areas covered by Transients and Variable Stars (TVS), Solar System and Stars, Milky Way & Local Volume (SMWLV) scientific collaborations. Various possible scientific cases, running or planned, such as periodicity determination in variable sources, Solar systes survey simulations, hydrodynamic pulsation models of LPVs, determination of stellar distances by photo-D, where ’Bura’ could be or has been used, and interesting for wider scientific community, will be described and discussed. These examples highlight the value of HPC infrastructure for a broad range of LSST science cases and the astrophysical community.