Attending: Scott Daniel, Peter Yoachim, Michael Reuter, Darko Jevremovic, Cathy Petry, Kem Cook, Rahul Biswas, Simon Krughoff, Veljko Vujcic, Chris Walter, Brittan Fiore-Silvfast, Lynne Jones

This weeks phonecon will be run by Scott and will cover

  - demo of DDS (Michael)

        - how will it scale to running at 1000x times realtime

• DDS = how components of the control system will communicate with each other over ethernet.  Uses "publish/subscribe" formalism.
• Only runs on CentOS 7 right now
• Has very specific firewall requirements (not a problem if we just run it on Docker containers; but if people want to eups install it locally, they will have to change their firewall configuration)
• There seems to be a limitation on rate.  Can only push messages out every 30 milliseconds (or slower) if you want the subscriber to receive all of the messages
  • Kem thinks this could be a problem for passing data around inside of the scheduler.
  • Michael will talk to David Mills about this.  Maybe there is an easy way to fix it.
  • Kem thinks Srini has a fast control loop for guiding and seeing; maybe we can learn from his experience.
• Need another CentOS 7 machine to test machine-to-machine communication
  • David Mills is working on making DDS compatible with other OSs

  - discussion of new baseline cadence run (Kem, Lynne, Zeljko)–brief description of 3.61 & enigma_1189

        - can we sign off on the new baseline for Zeljko to present to the CCB

• new reference run more repeatable than old reference run
• proposals refactored to better enable deep drilling fields as compared to old version
• seem to have eliminated end-of-survey "panic" (rapidly changing filters and position during last year)
• Lynne thinks enigma_1189 is better than OpSim3_61: it has a more realistic down time distribution
• From Lynne:
  Tusken has some MAF analysis results from enigma_1189 :
  the "scheduler validation" metrics (on opsim field pointings, not healpix grid .. looks at distributions etc relevant for scheduler)
  http://tusken.astro.washington.edu:8080/multiColor?runId=15
  the "science performance" metrics (on healpix grids, looks at more specific science goals .. just things described in SRD so far)
  http://tusken.astro.washington.edu:8080/allMetricResults?runId=17

Other business

OpSim stand-ups will be 10am Pacific Time on Mondays and Thursdays