Reconstruction proxy

The reconstruction computer’s service: it receives each series from the scanner’s reconstruction client, enriches it from the sequence that played it, and runs it on a reconstruction worker.

The proxy listens on a TCP port and is started with

pulserver proxy --store DIR --port N --plugins DIR [--intake-port N] [--slots N] [--spares 1] [--save-data DIR] [--idle-timeout S]
pulserver proxy --store DIR --port N --forward HOST:PORT [--forward-config NAME] [--dicom]

the second forwarding every enriched series to the reconstruction server at HOST:PORT, which is started with

pulserver recon --plugins DIR --port N [--slots N] [--spares 1] [--save-data DIR] [--idle-timeout S]

The MRD header of a series names the design it was played from; the proxy reads that design’s sequence chain and fills in the header and every acquisition. The readouts arrive demodulated to the prescribed field-of-view centre by the playout, and are passed on as received. Routing, slots and the queue are described in Raw-data enrichment and routing, and the messages and fields of a series in Reconstruction clients.

Reconstruction of a series

Object	Description
ReconProxy	TCP MRD server enriching each series and routing it to a reconstruction worker or server.
ReconServer	TCP MRD server reconstructing each series with the plugin its config names.
LocalReconstruction	Each series checked, enriched and reconstructed in the calling process, as the proxy’s workers do, for a host that starts no processes.

Designs

Object	Description
DesignCache	The designs of a store, the most recently read kept tabulated.
Design	A stored design as the reconstruction side reads it.
DESIGN_PARAMETER	Header user parameter naming the design a series was played from.
DesignIntake	HTTP endpoint receiving pushed designs into the store the proxy reads.

Enrichment

Object	Description
SequenceTable	The readouts of a sequence chain as MRD describes them, in play order.
TableSpace	One encoding space of a sequence table.
enrich_header	Describe the table’s encoding spaces and sequence parameters in an MRD header.
enrich_acquisition	Apply one row of the table to an acquisition, in place.