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Table of Contents

DiFX 2.0.2 Wish List

This list assumes DiFX 2.0.2 is to be released relative soon (a few months) after DiFX 2.0.1

  • Bug: when nfftchan is more than xmacstridelength in pulsar mode, only the first xmacstridelength channels appear properly populated
  • Bug: FATAL Mk5DataStream::calculateControlParams: bufferindex>=bufferbytes: bufferindex=170311680 >= bufferbytes=170311680 atsegment = 7
  • vex2difx (or other) support for creating .machines and .threads (from the eVLBI perspective)
  • Chase up and eliminate the cause of occasional тАЬSomehow Visibility X ended up with Y+1 subintegrations - was expecting only YтАЭ errors

Longer term wishes

These are probably beyond the horizon of DiFX 2.0.2 unless a champion comes in to make them reality

  • vex2 support (relies on vex2 finalization and some support from field systems)
  • Generalized GUI with unified database backend (Work progressing at MPIfR and USNO)
  • Amplitude correction for primary beam effects for off-center correlation (To be addressed at 2011 meeting at Haystack)
  • Move to a binary format for pcal files and name by datastream not by antenna name (To be addressed at 2011 meeting at Haystack)

Bug Fixes

  • LBA format data now scaled roughly correctly (removing the need for large ACCOR corrections)
  • There was a bug when xmaclength was > nfftchan for pulsar processing - this has been corrected
  • guardns was incorrectly (overzealously) calculated in mpifxcorr
  • тАЬMk5DataStream::calculateControlParams: bufferindex>=bufferbytesтАЭ bug fixed
  • Low weight reads could result in uninitialized memory
  • Streamstor XLRRead() bug work-around installed several places (read at position 0 before reading at position > 0)
  • Fix to pulse calibration data ordering for LSB or reordered channels
  • Pulse Cal amplitude now divided by pulse cal averaging time in seconds

New Features

  • Mark5-based correlation: easy access to SMART data (can be viewed with getsmart)
  • Mark5-based correlation: emit multicast message containing drive statistics after each scan
  • VSIS interface added to mk5daemon
  • Experimental support for non power-of-2 FFT lengths
  • New utilities: mk5map, fileto5c, record5c
  • New features added to existing utilities:
    • mk5cp: copy without reference to a directory, send data over ssh
    • vsn: get SMART data
difx/d202wishes.txt ۤ Last modified: 2015/10/21 10:08 (external edit)

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