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Comment: Updated matrix with results from further testing

Table of Contents

MWAX 128T

The following are all the modes possible with MWAX configured aswith:

  • 128T (16 RRI receivers)
  • 24 x 1.28 MHz non-oversampled coarse channels
  • No fringe-stopping enabled

Voltage Capture (VCS)

ModesGB/sTB/hr
Voltage Capture (VCS) @ 0.781 μs critically sampled15.957.24

Correlator

Legend:

The value in each cell is the total of all data from all coarse channels, in gigabytes, generated in 1 second (GB/s). Multiply by the duration of your observation to get total size of your observation in the mode chosen.

Blue cellsSupportedModes identical to the legacy correlator
Green cellsSupportedModes which are new to MWA and which are supported
Orange cellsUnsupportedModes which take much more than 8 seconds to process 8 seconds of input data, or which generate more than 100 Gbp/s (thus not sustainable), and thus not selectable normally
Yellow cellsMay be supportedLimited supportModes pending more testing (for throughput and also if the mode has a fine chan width which is not an integer), but which may end up being supportedwhich take more than 8 seconds to process 8 seconds of input data but can be sustained for a limited duration


Info

Note: when in extended / long baseline configuration, most science cases will require the 10 kHz, 0.5 sec mode at a minimum until the fringe stopping feature is enabled


Modes:
cell values = Total data size (GB/s)Time Resolution (s)


fscrunch

fine chans

per coarse

fine chan

width kHz


0.25


0.5


1.0


2.0


4.0


8.0

164000.2161.6980.8540.4220.2110.115.05
232000.480.8540.4220.2110.115.052.53
416000.840.4220.2110.115.052.531.26
512801.032.3416.178.084.042.021.01
88001.620.2110.115.052.531.260.63
106402.016.178.084.042.021.010.51
164003.210.115.052.531.260.630.32
203204.08.084.042.021.010.510.25
252565.06.473.231.620.810.400.20
322006.45.052.531.260.630.320.16
401608.04.042.021.010.510.250.13
5012810.03.231.620.810.400.200.10
6410012.82.531.260.630.320.160.08
808016.02.021.010.510.250.130.06
1006420.01.620.810.400.200.100.05
1285025.61.260.630.320.160.080.04
1604032.01.010.510.250.130.060.03
2003240.00.810.400.200.100.050.03
2562551.20.630.320.160.080.040.02
3202064.00.510.250.130.060.030.02
4001680.00.400.200.100.050.030.01
64010128.00.250.130.060.030.020.01
8008160.00.200.100.050.030.010.01
12805256.00.130.060.030.020.010.01
16004320.00.100.050.030.010.010.01
32002640.00.050.030.010.010.010.01
640011,280.00.030.010.010.010.010.01

...