OpenModelica master-fmi-fmpy from 2026-01-27 14:38:20 to 2026-01-29 12:10:29

Summary

OMC Commits1
Libraries Changed1
Number of Improvements30
Number of Regressions42
Number of Performance Improvements8
Number of Performance Regressions6

OpenModelica Changes

CommitDateAuthorSummary
c1ce8a87ba2026-01-28 13:18:00 +0100fbrandt[NB] support for adjoint derivatives (#14589)

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
f2691882025-12-11 11:52:34 +0100Adrian Popadd extra simflags gbode (#262)
a8b7fb32025-12-04 12:35:20 +0100Adrian Popupdate HelmholtzMedia (#261)

Library Changes

LibraryChange
Buildings_latestFrom version 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/ef1ad979e95241e5744999dba8c743b7d43e0355.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit to 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/bd2bf4bcfe0d623a1194399067ff6ebdaac5b091.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit

Models Affected

AdvancedNoiseAdvancedNoise.Examples.TimeBasedCorrelations (sim)Simulate → Compile
BuildingSystemsBuildingSystems.Applications.ClimateAnalyses.FreeFloatingTemperature (sim)Compile performance 0:08:46 → 0:04:48
BuildingSystemsBuildingSystems.Applications.HeatingSystems.SolarHeatingSystem (sim)Compile performance 0:05:24 → 0:03:00
BuildingSystemsBuildingSystems.Applications.PhotovoltaicSystems.PhotovoltaicSystem (sim)Compile performance 0:06:37 → 0:02:31
BuildingSystemsBuildingSystems.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)Failed → Compile
Buildings_11Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimarySecondaryEconomizer (sim)Failed → Compile
Buildings_11Buildings.DHC.ETS.Combined.Validation.ChillerOnly (sim)Failed → Verify
Buildings_11Buildings.DHC.Loads.Combined.Examples.BuildingTimeSeriesWithETS (sim)Compile → Failed
Buildings_11Buildings.DHC.Plants.Cooling.Examples.StoragePlantDualSource (sim)Compile → Verify
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940 (sim)Failed → Compile
Buildings_11Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindow (sim)Compile performance 0:02:01 → 0:04:34
Buildings_11Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowExteriorShade (sim)Failed → Verify
Buildings_12Buildings.Applications.DataCenters.ChillerCooled.Examples.NonIntegratedPrimarySecondaryEconomizer (sim)Failed → Compile
Buildings_12Buildings.DHC.ETS.Combined.Validation.ChillerOnly (sim)Failed → Verify
Buildings_12Buildings.DHC.Loads.Cooling.Examples.BuildingTimeSeriesWithETS (sim)Compile → Verify
Buildings_12Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 0.36 → 0:07:02
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case660 (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950FF (sim)Verify → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindow (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowExteriorShade (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindow (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowExteriorShade (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Spring (sim)Failed → Compile
Buildings_latestBuildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimarySecondary (sim)Compile performance 0:01:23 → 0:02:23
Buildings_latestBuildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimarySecondaryEconomizer (sim)Compile → Failed
Buildings_latestBuildings.Applications.DataCenters.ChillerCooled.Examples.NonIntegratedPrimarySecondaryEconomizer (sim)Failed → Compile
Buildings_latestBuildings.DHC.Loads.BaseClasses.Examples.CouplingSpawnZ6 (sim)Compile → Failed
Buildings_latestBuildings.DHC.Loads.Combined.Examples.BuildingTimeSeriesWithETS (sim)Failed → Compile
Buildings_latestBuildings.Fluid.HydronicConfigurations.ActiveNetworks.Examples.DecouplingMixing (sim)Simulate performance 0.49 → 17.63
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600 (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)Verify → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case670 (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case695 (sim)Failed → Verify
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF (sim)Verify → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindow (sim)Verify → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowExteriorShade (sim)Verify → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)Compile performance 0:04:30 → 0:02:11
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowExteriorShade (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowInteriorShade (sim)Failed → Compile
GreenhousesGreenhouses.Examples.GlobalSystem_2 (sim)Failed → Compile
LEPSE_mainLEPSE.Examples.KKT_1 (sim)Verify → Simulate
MEVMEV.Test.TestStandardPatient (sim)Compile → Simulate
Modelica_3.2.3Modelica.Blocks.Examples.Rectifier12pulseFFT (sim)Compile performance 0:04:14 → 0:02:26
Modelica_3.2.3Modelica.Electrical.Analog.Examples.ControlledSwitchWithArc (sim)Compile → Simulate
Modelica_3.2.3Modelica.Electrical.Analog.Examples.OpAmps.Multivibrator (sim)Simulate → Compile
Modelica_3.2.3Modelica.Mechanics.MultiBody.Examples.Loops.EngineV6 (sim)Failed → Simulate
Modelica_4.0.0Modelica.Electrical.Analog.Examples.OpAmps.Multivibrator (sim)Compile → Simulate
Modelica_4.0.0Modelica.Electrical.PowerConverters.Examples.ACDC.RectifierCenterTap2mPulse.ThyristorCenterTap2mPulse_RL (sim)Compile → Simulate
Modelica_4.1.0Modelica.Electrical.Analog.Examples.ControlledSwitchWithArc (sim)Compile → Simulate
Modelica_4.1.0Modelica.Electrical.Analog.Examples.OpAmps.Multivibrator (sim)Simulate → Compile
Modelica_4.1.0Modelica.Electrical.PowerConverters.Examples.ACAC.Dimmer_RL (sim)Compile → Simulate
Modelica_4.1.0Modelica.Electrical.PowerConverters.Examples.ACDC.RectifierCenterTap2mPulse.ThyristorCenterTap2mPulse_RL (sim)Compile → Simulate
Modelica_4.1.0Modelica.Mechanics.MultiBody.Examples.Loops.EngineV6 (sim)Simulate → Failed
Modelica_trunkModelica.Electrical.Analog.Examples.ControlledSwitchWithArc (sim)Compile → Simulate
OpenIPSLOpenIPSL.Examples.IEEE14.IEEE_14_Buses (sim)Simulate performance 24.10 → 13.81
OpenIPSLOpenIPSL.Examples.TwoAreas.Two_Areas_PSAT (sim)Simulate performance 15.42 → 5.69
OpenIPSLOpenIPSL.Tests.Machines.PSAT.Order3test2 (sim)Simulate performance 0.50 → 13.59
OpenIPSLOpenIPSL.Tests.Machines.PSAT.Order3test2_AVR (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Examples.TwoAreas.Two_Areas_PSAT (sim)Simulate performance 14.30 → 6.57
PowerGrids_symb_jacPowerGrids.Electrical.Test.SynchronousMachine4WindingsPowerSwing (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.ENTSOE.SteadyState (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.ENTSOE.TestCase1 (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.ENTSOE.TestCase2 (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.ENTSOE.TestCase3 (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.IEEE14bus.IEEE14busPowerFlow (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Controlled.ControlledGridParametersChange (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Controlled.ControlledGridWithControlledGen (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Controlled.ControlledGridWithPSS (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Controlled.ControlledGridWithReferenceCalculation (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Controlled.ControlledGridWithReferenceCalculationSat (sim)Compile → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Controlled.ControlledGridWithoutPSS (sim)Simulate → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.LoadChange.LoadChangeByInputSignals (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.LoadChange.LoadChangeByModifier (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.LoadChange.LoadChangeByModifierUsingExtends (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Static.PowerFlow (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Static.StaticGrid (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Static.StaticGridComputedParameters (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Static.StaticGridDifferentGeneratorParam (sim)Verify → Templates
PowerGrids_symb_jacPowerGrids.Examples.Tutorial.GridOperation.Static.StaticGridDifferentNominals (sim)Verify → Templates
PowerSystems_latestPowerSystems.Examples.AC1ph_DC.Inverters.InverterToGrid (sim)Verify → Compile
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_4_M_4 (sim)
ScalableTestSuiteScalableTestSuite.Electrical.BreakerCircuits.ScaledExperiments.BreakerNetwork_N_640_M_10 (sim)Verify → Failed
ScalableTestSuiteScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_3200 (sim)Verify → Failed
ScalableTestSuiteScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillator_N_1600 (sim)Failed → Verify
ScalableTestSuiteScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_640 (sim)Compile → Failed
ThermofluidStreamThermofluidStream.Examples.ReverseHeatPump (sim)Verify → Compile
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.FlowRes (sim)FrontEnd performance 5.64 → 10.00