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Top-Level Architecture
MWAX comprises 26 24 new servers (+ 2 spares) and repurposes 10 of the existing servers on site at the MRO, occupying three racks. It makes use of the existing 100 Gbps fibre-optic link from site to the ten existing storage servers located in B206 on Curtin Campus. These ten servers will buffer MWA data pending transfer via a 100 Gbps fibre-optic link from B206 to the Pawsey Supercomputing Centre.
This configuration is capable of simultaneous fine channelisation, cross-correlation, frequency/time averaging, and buffer storage for up to 256 tiles. In addition to the support for twice the inputs / four times the output visibilities, the MWAX correlator offers a number of improvements over the legacy system. At the time of writing, MWA has 16 receivers, which process 128 tiles in total. This limits the input to MWAX, such that it only correlates 128 tiles, despite being capable of 256.
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