fast-resolve and resolve reconstructions of the 2052 MHz Cygnus A data at different stages of the reconstruction. The left column shows fast-resolve the right column resolve. The rows display snapshots of the reconstruction after different amounts of wall time indicated in the lower left of each panel. The fast-resolve reconstruction was performed on two cores of an Intel Xeon CPU. The resolve reconstruction used eight cores of the same CPU. The fast-resolve reconstructions in the last two rows are at identical time snapshots, since the fast-resolve reconstruction is considered to be converged after 600 min. The resolve reconstruction is not fully converged even after 1416 min.