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Select on read for MWA correlator fits #1386
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I think there are potential options, but it depends a bit on what axes. Some axes, like time, frequency and polarization, are easier than e.g. baseline. |
It’s baseline that we need… |
Somewhat tangential, but there may be some low-hanging fruit in terms of file read speed-ups:
This looks a lot like some old code that used to be in the UVH5 reader, which you can get a reasonable speedup with using |
Do you want to select a large or small number of baselines? |
Small, in the sense of less than half of the baselines. Maybe a quarter tops? |
We've got a project that is hitting a bottleneck due to the lack of select on read for MWA correlator fits files. We should discuss the feasibility of implementing it (and if there is even a potential speedup given the nature of the file format).
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