OpenModelica cpp from 2026-09-11 22:50:55 to 2026-09-13 00:06:02

Summary

OMC Commits1
Libraries Changed2
Number of Improvements5
Number of Regressions6
Number of Performance Improvements13
Number of Performance Regressions9

OpenModelica Changes

CommitDateAuthorSummary
v1.28.0-dev.719+gce5414c5d8.cmake..v1.28.0-dev.727+gebda597bb0.cmake

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
5b24b0b2026-09-12 09:47:08 +0200Martin SjölundGive each runner a working directory of its own (#360)
ef783c42026-09-12 07:53:22 +0200Martin SjölundAdd netcdf to the docker image

Library Changes

LibraryChange
Buildings_11From version 11.1.2-maint.11.x (27fee964af593be6026d2de4d6975be02d810490) to 11.1.2-maint.11.x (54efcd7546501f1a2d86e42eb827548a06f4713f)
Buildings_latestFrom version 14.0.0-master (8b1f8a1c6437f56745cfa40bb00fb065aa45ac2f) to 14.0.0-master (4736a77498afdaaa9356f0fe3bc768b24a510020)

Models Affected

AixLibAixLib.Obsolete.Year2022.Examples.NcDataReader (sim)Templates → Simulate
AixLibAixLib.Systems.ModularAHU.Examples.EONERC_AHU2 (sim)Templates performance 49.35 → 22.42
BuildSysProBuildSysPro.Building.Examples.TestZoneNWalls (sim)Templates performance 7.55 → 13.29
BuildingSystemsBuildingSystems.Utilities.NetCDF_DataReader.ExampleNcDataReader (sim)Templates → Simulate
Buildings_11Buildings.DHC.ETS.Combined.Validation.ChillerBorefield (sim)Templates performance 32.86 → 19.16
Buildings_11Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SmallOffice.ASHRAE2006Spring (sim)Templates performance 18.00 → 7.82
Buildings_12Buildings.DHC.Plants.Combined.Examples.AllElectricCWStorage (sim)Templates performance 45.31 → 20.59
Buildings_12Buildings.Fluid.Geothermal.ZonedBorefields.Validation.FEFLOW.MassFlowRatePulse50 (sim)Verify → Compile
Buildings_latestBuildings.Air.Systems.SingleZone.VAV.Examples.ChillerDXHeatingEconomizer (sim)Templates performance 12.24 → 6.51
Buildings_latestBuildings.Air.Systems.SingleZone.VAV.Examples.Guideline36 (sim)Templates performance 12.76 → 6.95
Buildings_latestBuildings.DHC.ETS.Combined.Examples.HeatRecoveryHeatPump (sim)Templates performance 5.43 → 10.46
Buildings_latestBuildings.DHC.Loads.Combined.Examples.BuildingTimeSeriesWithETSDHWTank (sim)Templates performance 6.42 → 15.40
Buildings_latestBuildings.Fluid.Geothermal.ZonedBorefields.Validation.FEFLOW.MassFlowRateStep100 (sim)Compile → Verify
DynawoDynawo.Examples.RVS.TestCases.TestA.TestAAlphaBetaLoadNoRestorative (sim)
ModelicaTest_trunkModelicaTest.Blocks.FilterTests.AllOptions (sim)Simulate performance 11.15 → 20.38
OpenIMDML_mainOpenIMDML.Examples.MultiDomainExamples.MultiDomainThreePhaseInductionMotors.MultiDomainThreePhaseMotorValidation.MultiDomainCIM (sim)Compile → Failed
OpenIMDML_mainOpenIMDML.Examples.MultiDomainExamples.MultiDomainThreePhaseInductionMotors.MultiDomainThreePhaseMotorValidation.MultiDomainTypeI (sim)Simulate → Failed
OpenIMDML_mainOpenIMDML.Examples.MultiDomainExamples.MultiDomainThreePhaseInductionMotors.MultiDomainThreePhaseMotorValidation.MultiDomainTypeIII (sim)Compile → Failed
OpenIMDML_mainOpenIMDML.Examples.MultiDomainExamples.MultiDomainThreePhaseInductionMotors.MultiDomainThreePhaseMotorValidation.MultiDomainTypeV (sim)Compile → Failed
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinear_N_56_M_56 (sim)Failed → Compile
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineEquations_N_640 (sim)Simulate performance 16.47 → 7.32
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_640 (sim)Simulate performance 35.19 → 8.62
ScalableTestSuiteScalableTestSuite.Elementary.Tables.ScaledExperiments.TimeTable_N_16000 (sim)Failed → Verify
ScalableTestSuiteScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEvents_N_4000_M_10 (sim)Simulate performance 20.61 → 9.48
ScalableTestSuiteScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_1600 (sim)Simulate performance 13.23 → 36.81
ScalableTestSuiteScalableTestSuite.Thermal.HeatExchanger.ScaledExperiments.CounterCurrentHeatExchangerEquations_N_1280 (sim)Verify → Compile
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_40_M_40 (sim)BackEnd performance 41.71 → 0:01:24
ScalableTestSuite_nooptScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_12800 (sim)Templates performance 0:01:02 → 35.01
ScalableTestSuite_nooptScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_25600 (sim)BackEnd performance 13.88 → 6.59
ScalableTestSuite_nooptScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_3200 (sim)Simulate performance 52.19 → 13.64
ScalableTestSuite_nooptScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_6400 (sim)Templates performance 14.07 → 7.92 Simulate performance 0:03:54 → 0:02:12
ScalableTestSuite_nooptScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_16 (sim)Simulate performance 7.92 → 17.49
ScalableTestSuite_nooptScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_1600 (sim)Simulate performance 8.90 → 21.36
ScalableTestSuite_nooptScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_1600 (sim)Simulate performance 6.31 → 15.31