VEGAS Pulsar Project Meeting - Sprint Review: 2017 October 23rd 14:00 - 15:00pm ET

Present

  • Luke, Jason, Ray, Ryan, Joe, Laura

Sprint Story Overview

  • VE-323: Prepare for pulsar mode acceptance tests (COMPLETE)
  • VE-316: Plan for astronomical tests of spectral line modes (COMPLETE)
  • VE-332: Banks C and D not getting correct MAC addresses for 10-gigE (INCOMPLETE)
  • VE-325: Append delays to BOF file names (DISCONTINUED)
  • VE-331: Continue investigating c1500 packet loss (INCOMPLETE)
  • VE-310: High time resolution modes (IN PROGRESS)
  • VE-330: Configure Manager to support Matrix and Classic (COMPLETE)
  • VE-329: Continue work on LBW pulsar matrix (IN PROGRESS)
  • VE-322: Cannot validate scripts in offline mode (INCOMPLETE)
  • VE-333: Look into balancing issue in spectral line modes (COMPLETE)
  • Identify a source tree for VPM utilities
  • Install VPM utilities in new source tree

Story Details

VE-323: Prepare for pulsar mode acceptance tests

  • Ryan thinks this is ready to go once regression testing is done

VE-316: Plan for astronomical tests of spectral line modes

  • Ryan thinks this is ready to go once regression testing is done

VE-332: Banks C and D not getting correct MAC addresses for 10-gigE

  • This still needs to be investigated
  • Ray wants to make sure we test in both dual backend (VPM/GUPPI) and VPM-only mode
  • Need to also do A/B tests with and without the guppi_daq agent used for monitoring shared memory in coherent dedispersion modes

VE-325: Append delays to BOF file names

  • We decided not to do this
  • Luke is instead sending Ryan a complete list of all BOF file delays
  • Luke is mostly done. He is waiting for basic tests of 32-channel modes before proceeding with those. He is also trying to trouble shoot simulations of 64-channel coherent mode FFTs.
  • Luke is only counting latencies up to the packetizer

VE-331: Continue investigating c1500 packet loss

  • Waiting for MAC address issue to be resolved

VE-310: High time resolution modes

VE-330: Configure Manager to support Matrix and Classic

  • Complete and ready for testing

VE-329: Continue work on LBW pulsar matrix

  • Ryan sent Joe a more detailed description of coherent dedispersion algorithm
  • Ryan is nearly finished with a more detailed description of use-cases, requirements, and pulsar data processing details

VE-322: Cannot validate scripts in offline mode

  • Incomplete

VE-333: Look into balancing issue in spectral line modes

  • The symptom was that several banks were failing to balance properly on the regression candidate
  • Ryan tried extensively to recreate this failure but was not able to do so. Cause remains a mystery.

Identify a source tree for VPM utilities

  • SDD to supply a preferred installation directory and bash environment for testing

Install VPM utilities in new source tree

  • Ryan sent the software team a detailed description of VPM tools that need to be installed
  • Includes a Task Master task for vpm_auto_plot, automatic VPM bandpass monitor, and a DAQ server used to monitor processes on the VPM HPCs in coherent dedispersion modes.
    • Ryan to add try/accept to make sure bandpass monitor runs when not in pulsar mode

VEGAS Pulsar Project Meeting - Sprint Planning: 2017 October 23rd 2:00 - 3:00pm ET

Note: The team's "velocity" has been consistent at 11--13 points per sprint. We should aim for 12 points per sprint for planning purposes.

Backlog

  • High time resolution modes
  • Investigate packet loss in c1500 modes
  • Continue work on Matrix LBW pulsar modes

Critical Issues

  • Offline script validation
  • MAC addresses for 10-gig ethernet ports are wrong for Banks C and D in VPM coherent modes
  • Identify a source tree for VPM utilities
  • Install VPM utilities in new source tree
  • Add a Task Master task for vpm_auto_plot, automatic VPM bandpass monitor, and a DAQ server used to monitor processes on the VPM HPCs in coherent dedispersion modes.

New Stories

  • Find a machine where Jason can test new BOF file designs using bandpass monitor
    • Ryan can test this as long as a machine is available
    • Need to be careful about which guppi_daq_server is running
    • Ryan to use regtest/vegas-hpc10 on Wednesday afternoon to test this (October 25)
-- RyanLynch - 2017-10-23

This topic: CICADA > VegasPulsarModes > VegasPulsarProjectMeetings2017 > VegasPulsarProjectMeeting2017Oct23
Topic revision: 2017-10-23, RyanLynch
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