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2021 09 07_meeting
Date: September 7, 2021, 8:15am-9am Pacific Times
The purpose of this meeting is to coordinate the Modelica integration for SOEP.
Join from PC, Mac, Linux, iOS or Android: https://lbnl.zoom.us/my/mwetter
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- 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
- Previous action items
- Communication structure with Modelon and Objexx
- Preparation for lab call
- Modelon
- Stuart: FMI-QSS
- Kyle, Michael: EnergyPlus-Modelica coupling.
- Other items
To be discussed next call.
Protection mechanism to be reviewed until end of September.
Modelon needs example models that are not in Buildings but uses Buildings and should work. To be shared with Christian and Hakan.
See tickets submitted today.
Python binding. Stuart working on it, going fine. Also works on regression testing.
QSS event handling. Update to event handling shared with Modelon for feedback.
No discussion.
Issues are at https://github.com/lbl-srg/modelica-buildings/issues?q=is%3Aissue+is%3Aopen+label%3Aspawn
Next, work on
- Spawn FMUs are not yet self contained, https://github.com/lbl-srg/modelica-buildings/issues/2054 Should spawn.exe call be replaced by a call to a library function, with spawn.exe a wrapper for debugging? Michael to write up a specification for the implementation.
- Buildings library to report last E+ fatal error, https://github.com/lbl-srg/modelica-buildings/issues/2521
- [For FY21, Q2] Kyle to fix schedule: https://github.com/lbl-srg/modelica-buildings/issues/2000
- (Kyle either fixes it, or proposes new wording for https://lbl-srg.github.io/soep/softwareArchitecture.html#sending-input-to-energyplus)
- [For FY21, Q2] Kyle to look into numerical instability (walls may be initialized to wrong temperature). See for example Experimental/EnergyPlus/Examples/VAVReheatRefBldgSmallOffice/FloorOpenLoop. The temperature in the attic should not raise in the first hour. (Pending since Nov. 2019)
- Remove warnings issued by EnergyPlus, https://github.com/lbl-srg/modelica-buildings/issues/2220
- Support negative start time in EnergyPlus, https://github.com/lbl-srg/modelica-buildings/issues/1938
Plan for Spawn 0.x release by end of September, with Buildings Library 8.0.1 release (that includes bug fix for QLat_flow as in https://github.com/lbl-srg/modelica-buildings/issues/2602).
1st block is Modelica IMPACT training. 2nd block is Buildings Library training.
Cloud registration will be through Modelon. Hubertus to ping Lena about registration process.
None.
Coordinate Modelica Buildings Library tutorial at Modelica Conference.
Prepare upcoming release of Spawn and Buildings 8.0.1.
Michael to write a specification for how to invoke spawn executable that allows multiple Modelica Buildings Libraries and associated Spawn versions. Posted at https://lbl-srg.github.io/soep/softwareArchitecture.html#distribution-of-spawn-and-the-modelica-buildings-library. - Done.