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DiFX New Features. Disk based file specification. Improved specification of files to correlate Wild cards with time of scan name filtering? External reference Ie remove from .input file. Threads/machine files. Generate threads and machine files Could use generalized cluster setup file.
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Disk based file specification • Improved specification of files to correlate • Wild cards with time of scan name filtering? • External reference • Ie remove from .input file
Threads/machine files • Generate threads and machine files • Could use generalized cluster setup file DataStream cave01..05 Threads 7 Core cave06..08 Threads 5 Core cave09 cave10..13
FITS-IDI Pulsar binning • Pulsar binning support in FITS-IDI needed?
Monitoring and Diagnosis • What is needed….?
Tk-errmon? • GUI for multicast message/error distrobution • Tab per machine • Filter on type • etc
User Interface • Common GUI?
Geodesy Output • Route into HOPS
Space VLBI • Presently not feasible in difx (??) • Acceleration needed as well as rates • Radioastron scheduled to launch in spring ’10 • VSOP-2 to launch soon
DiFX Installation • What more is needed? • Distribution packages ? • E.g. Debian, Ubuntu
IF distribution • Allow parallelization via subband as well as timeslicing • Specifically for widebandwidth, with small number of telescopes • E.g 8 Gbps, single baseline • “Eliminate” DataStream • Allow eVLBI recorder to send data to core nodes
eVLBI disconnection • Allow telescopes to disconnect (& reconnect) in eVLBI mode • Need some method to determine time of other DataStreams and create fake (but invalid) data stream.
Unified DataStream Helper • eVLBI requires starting of remote Mark5/LBADR • startcorr.pl will start LBADR recorder – needs extra information which is not in .input file • Mark5? • Remote playback could be done the same way • Method to (optionally) invoke DataStream “helper” application
Realtime DiFX • Better support observing without predetermined schedule (e.g. connected element interferometry)
Remove IPP dependencies • Isolate all IPP code to a well contained set of routines • Develop non-IPP versions • Version for non-Intel maths libraries
libDiFX • Break ALL key components into individual modules • E.g. no mpi dependencies • Allow cutdown correlator to be assembled easily (e.g. nonDiFX) • Replace specific parts optimised for a particular setup (e.g. lots of telescopes, remove fringe rotation)
DiFX++ • When should we abandon DiFX and start a newer better faster…..