LBA Correlation

The DiFX software correlator

All disk-based recorded LBA data is now corrrelated on the DiFX software correlator developed at the Swinburne University of Technology. LBA data was correlated using DiFX on on the Swinburne supercomputer cluster, under a service agreement with the ATNF in 2007 and 2008. From 2009 until 2015, the correlator facility for the LBA National facility operations was run under contract by the Curtin University of Technology. Since October 2015, LBA data has been correlated at the Pawsey Supercomputer Centre. More details about LBA correlation are given on the LBA wiki pages.

The DiFX software correlator is described in "DiFX: A Software Correlator for Very Long Baseline Interferometry Using Multiprocessor Computing Environments," Deller, Tingay, Bailes and West 2007, PASP, 119, 318, and "DiFX-2: A More Flexible, Efficient, Robust, and Powerful Software Correlator," Deller et al. 2011, PASP, 123, 275.

The S2 correlator

Until the end of 2006, all S2 tape-based recordings on the LBA were correlated at the ATNF LBA hardware correlator. The S2 tape system was decommissioned in January 2007 and all recordings on the LBA are now on disks, using the LBADR recording system.

Details of the S2 correlator are included here for reference when examining archival LBA data.

Last update: 15-feb-2017 pge