Skip to content

2019 05 08_meeting

Jump to bottom
Michael Wetter edited this page May 8, 2019 · 4 revisions

SOEP Coordination meeting

Date: May 8, 2019, 8:15am-9am Pacific Times

The purpose of this meeting is to coordinate the Modelica integration for SOEP.

Meeting information

Join from PC, Mac, Linux, iOS or Android: https://lbnl.zoom.us/my/mwetter

Or iPhone one-tap (US Toll): +14086380968,6614042296# or +16465588656,6614042296#

Or Telephone:
Dial: +1 408 638 0968 (US Toll) or +1 646 558 8656 (US Toll) Meeting ID: 661 404 2296 International numbers available: https://lbnl.zoom.us/zoomconference?m=_h5BuJ686mPy3rWEyKf4NROxLaeOV5J8

Agenda

  1. Previous action items.
  2. Kyle, Michael: Refactoring room air heat and mass balance.
  3. Michael: Specification for FMI-QSS.
  4. Stuart: FMI-QSS.
  5. Kyle, Michael: Optimica license protection.
  6. Jianjun: JSON representation for OS front-end to Modelica
  7. Other items

Participants

Brian Ball
Kyle Benne
Stuart Mentzer
Bo Shen
Michael Wetter

Minutes

Refactoring room air balance

Branch issue1129_energyPlus_zone now works for one building for JModelica, Dymola and OpenModelica.

Debugging is ongoing to correct synchronization of a JModelica generated FMU with two thermal zones.

Calling fmi2CompletedIntegratorStep in API did not help.

Make sure parameters are also outputs:
<ScalarVariable name="Core_ZN_AFlo" valueReference="2"

description="Floor area" causality="output" variability="fixed" initial="exact">

Next, work on

  • Kyle to provide a .so file and a idf file with 3 identical rooms.
  • have a permanent link to download the built binaries (once the other bug is fixed).
  • installer package for all three platforms.
  • then implement control I/O.

EnergyPlus I/O variables

No activity until room model is finished.

Modelon

Coordinate NREL subcontract. Next is Modelon to make proposal for license protection.

  • Add Python 3 support as Python 2.x is end of its lifetime.
  • Support NREL in compiling binaries from OpenStudio through Java API.
  • Ideally add binary from Modelon.
  • Mac to be added next year, and Ubuntu 18.04 LTS this year (and Windows).

Compliance testing

  • FFD and Python (wrong symbols)
  • Numerics
    • Buildings.Fluid.Examples.FlowSystem
    • Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.PumpParallel
    • Buildings.Examples.VAVCO2.VAVSystemCTControl
  • various timeouts

FMI-QSS

Next is Objexx and Modelon to implement new specification from https://lbl-srg.github.io/soep/softwareArchitecture.html#jmodelica-integration

Mostly done with connected FMUs and event handling.

Now works on robust handling of zero crossing.

For next gen branch, next is to update to actual API from Modelon.

CI testing (funnel)

Works on some corner cases on the cross comparison.

Next:

  • Test using funnel as the default diff tool in BuildingsPy.
  • Use funnel for cross comparison between dymola and jmodelica.
  • Work on experiment specification.

Optimica license protection

Potential paths: Check diff to frozen library. Allow n models to be changed. Upgrade path to full OCT version (with access to cloud version in an integrated way).

Need to define the different use cases and work flows.

Use of python API makes protection much easier, is sufficient unless interactive mode is needed. Java API would be needed for interactive mode.

JSON representation for OS front-end to Modelica

Jianjun to work on modelica-json parsing in Modelica rather than CDL mode.

Ongoing is dealing with replaceable models.

Other items

None.

New action items

None.

Previous action items

None.

Clone this wiki locally