Spectral line cube formation. This is the simplest case, where independent spectral-line channels are sent to separate processors for imaging. Spectral line deconvolution. Independent spectral-line channels are sent to separate processors for deconvolution. If both imaging and deconvolution are requested by the user, the two functions should be pipelined together and sent to individual processors in one step.
Separate fields are independent and can be sent to different processors.
This problem can be separated into independent time slices and sent to individual processors. This is a very computationally intensive problem that can be separated in time for parallel processing. This can be divided into separate time ranges and sent to separate processors. This is the general case, which includes the wide field imaging, with clusters of fields. Fields could be constructed by shifting the phases of the visibility data then sent to individual processors.