SDP

The SKA Science Data Processor (SDP) is the final stage of the SKA processing chain, before handing over the data to the astronomers. The purpose of the SDP is to take the data streams from the SKA Central Signal Processor (CSP) and turn them into science-ready data products. This is done for both imaging applications as well as for non-imaging, i.e. pulsar, applications.

In order to handle the vast amounts of incoming data (currently several Tbit / sec per instrument are foreseen), the SDP will be based on a data-driven architecture that heavily exploits data parallelism. Scalability is a prime driver for this architecture, both for the hardware and the software. Moreover, the SDP should be able to deal with component failures and missing data while still maintaining availability.

There will be two instantiations of the SDP: one in Cape Town, South Africa, for the SKA-MID and one in Perth, Australia, for the SKA-LOW. Data may be accessed through the Archive Facilities on these sites or through Regional Science Centers which are to be located all over the globe.

Logo of the SKA Science Data Processor Consortium

Logo of the SKA Science Data Processor Consortium

 

 

 

Example of processing exploiting data parallelism

Example of processing exploiting data parallelism

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