AMANDA online data processing Overview

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AMANDA online data processing - Overview

• I The goals of online data processing (ODP)
• II Parts of the online filtering system
• Monitoring
• TWR µ-DAQ merging
• L1 filtering
• III Changes in season 2003/2004
• IV Selections, cuts fits in L1 filtering
• V Format of the L1 file
• VI Sample L2
• VII Summary
• Markus Ackermann
• ackerman_at_ifh.de

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AMANDA online data processing Goals

• Reduction of raw data to rates which can be
  transmitted by TDRSS satellite link.
• Fast availability of data.
• Crucial for detector monitoring.
• Convenient for muon and TWR data

Approximate data rates
Raw µ-DAQ 6 GB/day
Raw TWR 60 GB/day
Monitoring 0.01 GB/day
HE stream 1 GB/day
L1 filtered 0.6 GB/day
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AMANDA online data processing System parts

Datahandler Control of the online processing.
Monitoring Monitoring package from Jens New
omscanner
L1 filtering Sieglinde based minimal filtering
TWR / µ-data merging Jens Wavereader
Wavemerger software
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AMANDA online data processing Changes 2003/2004

• Datahandler
• New ODP administration tool utilizing MySQL DB
  PBS batch system
• Monitoring
• Omscanner (Root tree generator for bad
  run/file/OM selection) introduced.
• TWR / µ-data merging
• Cut is now on the number of WFs ( was NHits ) for
  HE sample.
• Datahandler is used to find corresponding files.
• ? Dramatically reduced CPU / Disk / Networking
  resources.
• L1 Filtering
• Software change ofip ? sieglinde Redesign of
  L1 filter steps.
• Reduced number of necessary calibration constants
  (only T0, Amps).
• ? Higher flexibility, speed and more chances to
  have filtering running at the beginning of winter

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AMANDA online data processing Selections FG
fits
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AMANDA online data processing Cuts, Fits
Output
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AMANDA online data processing L1 file format
TRIG 1..8 Amanda HW trigger TRIG 9 Hitsel0
(TOT range selection) TRIG 10 Hitsel1 (Time
window selection) TRIG 11 Hitsel2 (Low
ampl./Isolated hits rejection) TRIG
12 Retrig (L1 Retrigger) TRIG 13 DW70 (upgoing
muons) TRIG 14 CascTr (cascades) TRIG
15 SpaseTr (spase/A2 coinc.) TRIG 16 HEsel (high
energy ev.) TRIG 17 PreScl (minimum bias) TRIG
18 Wimp70 (upgoing WIMPs) FIT 0 Direct Walk
FIT 1 Direct WIMP FIT 2 CFirst FIT 3 LogLH
UPandel-Lllh (Ndirect) FIT 4 LogLH PointPandel
SPE FIT 5 LogLH PointPandel MPE FIT 6 JAMS
Hit Selections
Event Selections
Reconstructions
ALL HITS IN L1 F2K FILE ARE UNCALIBRATED
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AMANDA online data processing L2 sample

• f2kIn0 f2kIn verbose 50 \
  Nskip 0 \ Nevent 1000000
• AMABTrig Soff -v -e 000000000000000100
• CascTrig Soff -v -e 000010000000000000
• CascEv EventSelect verbose \
• AND \
• Select CascTrig \
• Select AMABTrig
• MuonCal0 Calibrate -S f2kIn0 R muon_DAQ
• OMSelL2 OMSel verbose \
• use_OMData CMD_LINE.BADOM
• .

• L2 tasks
• Calibration
• OM selection
• Retriggering
• X-talk cleaning
• High-Level Reco

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AMANDA online data processing Summary

• L1 data sample is now produced at pole and ready
  to be used for analysis
• Maintenance by the WOs (hopefully) significantly
  reduced
• TWR merging optimized
• new L1 f2k file is compatible to L1 files
  currently produced in the Zeuthen re-filtering
  2000-2003
• Minimization of calibration necessary for L1, so
  filtering can start right after the winter.