2019 04 24_meeting - lbl-srg/soep GitHub Wiki

Date: April 24, 2019, 8:15am-9am Pacific Times

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

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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

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.

Try calling fmi2CompletedIntegratorStep in API.

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

• have a permanent link to download the built binaries (once the other bug is fixed).
• replace custom C function calls with calls to proper fmi2 functions (ongoing on branch issue1129_energyPlus_zone_fmiSignature which is based on issue1129_energyPlus_zone)
• then implement control I/O.

End of months milestone: Disseminate installer package for all three platforms.

No activity until room model is finished.

LBNL subcontract is done.

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).

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.

For next gen branch, next is to update to actual API from Modelon. Need to work out on what to do with discrete inputs.

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.

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.

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

Ongoing is dealing with replaceable models.

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