OpenModelica cpp from 2026-05-01 01:33:16 to 2026-05-01 20:58:15

Summary

OMC Commits3
Libraries Changed1
Number of Improvements2
Number of Regressions5
Number of Performance Improvements3
Number of Performance Regressions1

OpenModelica Changes

CommitDateAuthorSummary
1a2e6fa1422026-05-01 20:21:03 +0200Martin SjölundChange equations to algorithms in MetaModelica (#15475)
c3f29970a42026-05-01 10:58:46 +0200Martin SjölundChange equations to algorithms in MetaModelica (#15473)
72eccb9bf02026-05-01 01:58:15 +0200Adrian Popmore tries on git describe not showing tag (#15470)

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
1dd4db72026-04-19 14:25:16 +0200Adrian Popforce fetch of tags to handle the floating tag 'nightly' (#285)
e83c3f42026-04-14 08:15:53 +0200Adrian Popcannot run python -m fmpy via check_output_log (#284)

Library Changes

LibraryChange
Buildings_latestFrom version 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/26325fe82c9eaf2048e850c70f117b6e46404a58.zip) to 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/0d7cf53f81085ebd20a71b8cc29e366c236c6808.zip)

Models Affected

AixLibAixLib.Systems.ModularAHU.Examples.DemandControlledAHU (sim)BackEnd performance 16.54 → 7.57 Templates performance 0:01:02 → 35.60
Buildings_11Buildings.DHC.Plants.Combined.Examples.AllElectricCWStorage (sim)Compile → Templates
Buildings_11Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)Simulate → Compile
Buildings_latestBuildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithoutDHW (sim)Simulate performance 54.23 → 0.62
Buildings_latestBuildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)Compile → Simulate
Buildings_latestBuildings.Fluid.HeatExchangers.CoolingTowers.Examples.Merkel (sim)Verify → Simulate
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents2 (sim)
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents3 (sim)
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Original_Systems.Nordic44_Original_Case_Bus_Fault (sim)
OpenIPSL_devOpenIPSL.Examples.N44.Base_Case.Nordic44_Base_Case (sim)
OpenIPSL_devOpenIPSL.Examples.N44.Original.Nordic44_Original_Case (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_8_M_4 (sim)SimCode → Failed
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_320_M_5 (sim)Templates → Verify
ScalableTestSuiteScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_16 (sim)Simulate performance 5.71 → 10.07
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_56_M_56 (sim)Verify → Templates
ScalableTestSuite_nooptScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEvents_N_4000_M_10 (sim)SimCode performance 29.93 → 15.41