An IVS Pilot Study for Distributed Correlation in the VGOS era
Alessandra Bertarini, Gino Tuccari, Rüdiger Haas, Jamie McCallum, Stuart Weston · Chalmers Publication Library (Chalmers University of Technology) · 2017
In this study we explore the feasibility of distributed correlation as a potential VGOS correlation architecture.Specific challenges are that the amount of data to be transferred to the correlator is going to increase enormously, hence also the correlation time and the capacity of the RAIDs at the correlators to store the data will increase.This study will identify whether distributing the correlation of one experiment among more correlators will help to keep the latency from observation to analysis within a reasonable time; now the guideline set by the IVS from observation to analysis should not be more than two weeks.