BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:America/New_York
X-LIC-LOCATION:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20210402T160546Z
LOCATION:Track 10
DTSTART;TZID=America/New_York:20201113T152500
DTEND;TZID=America/New_York:20201113T155000
UID:submissions.supercomputing.org_SC20_sess232_ws_urgent101@linklings.com
SUMMARY:Rapid Processing of Astronomical Data for the Dark Energy Spectros
 copic Instrument
DESCRIPTION:Workshop\n\nRapid Processing of Astronomical Data for the Dark
  Energy Spectroscopic Instrument\n\nKremin, Bailey\n\nDark energy remains 
 one of the least understood areas of modern cosmology and physics. The Dar
 k Energy Spectroscopic Instrument (DESI) was built to improve our understa
 nding through the acquisition of data from over thirty million galaxies. D
 ESI is a highly multiplexed instrument capable of acquiring astronomical s
 pectra for 5000 objects simultaneously. This multiplexing, which is larger
  than any multi-object spectrograph to date, is made more ambitious with a
 n observing strategy that requires up-to-date information of data quality 
 and completeness on a daily basis to inform the scheduling of future obser
 vations. With an order of magnitude larger data volume than its predecesso
 rs and more stringent survey demands, novel methods have been developed to
  rapidly process the data in near-real-time and make inferences based on t
 he results. The data acquired from thirty highly sensitive cameras are tra
 nsferred from local storage on the mountaintop to the National Energy Rese
 arch Scientific Computing Center (NERSC). Using an urgent queue operating 
 at NERSC, a parallelized set of routines processes the images and extracts
  astronomically relevant information within minutes to hours of acquisitio
 n, enabling daytime analysis by the operations manager to make observing p
 rogram decisions for the following night. The implementation has been run 
 at scale and tested in the spring of 2020 during commissioning of the inst
 rument and proven successful at giving critical feedback to the observing 
 team about the previous night's data quality. Quantitative and qualitative
  results will be discussed, along with planned improvements to the workflo
 w before the survey begins full operation in 2021.\n\nTag: Applications, S
 cientific Computing, Simulation, State of the Practice, Technology Challen
 ge\n\nRegistration Category: Workshop Reg Pass
END:VEVENT
END:VCALENDAR