used for single-station science at LOFAR-UK, Nancay, Bonn + Onsala. Software: AMPP, the artemis modular pelican pipelines AMPP: prototype for streaming processing for the SKA and its pathﬁnders. 35 TB/day today. Tomorrow? Software: Pelican, a light and scalable framework for distributed streaming processing. Hardware: AMPP and Pelican have native CPU and GPU support AMPP is not a UDP packet recorder AMPP is not limited to LOFAR AMPP is documented and open to developers H5 data product that conforms to LOFAR standard
dipoles), high sensitivity. 9 international stations = superterp • Very fast sampling rate (5 ns), reduced to 5.12 µs for the station beams. • Large fields of view, 10 to 100s of square degrees. • Not used for all LOFAR KSPs.
• Working prototype for non-‐image processing • Real-‐Bme searches for Individual Radio Pulses using CPU/GPU • Dedispersion over 4000 DMs per beam in real Bme with GPUs • Pilot survey 1: 6-‐8 beams tracking circumpolar targets • Pilot survey 2: 6 beams ﬁxed on the meridian from 8o to 28o dec Pipeline diagnosBc plot from Pilot survey – daily summary from one of six beams Receive udp stream Polyphase ﬁlter Raw to Stokes RFI removal Dedispersion output S/N DM Time (s) Aris Karastergiou (email@example.com) Crab
and Lorimer burst as they happened. • Affordable and scalable hardware • Fastest ever dedispersion code on NVIDIA GPU • RFI rejection performing well in very contaminated environment Crab B1919+21 26 December 2011 drift scan with beam at Dec=+21º B1919+21 Crab time (s) ?? ? ?