OpenModelica master-fmi-fmpy from 2026-08-08 11:58:18 to 2026-08-11 08:50:54

Summary

OMC Commits	9
Libraries Changed	1
Number of Improvements	92
Number of Regressions	6
Number of Performance Improvements	7
Number of Performance Regressions	10

OpenModelica Changes

Commit	Date	Author	Summary
73fdd5fbb9	2026-08-11 07:44:39 +0200	Martin Sjölund	Native platforms for the wasm FMU export (#16225)
226ede3e89	2026-08-10 15:08:52 +0200	Adeel Asghar	Handle typename expressions with a name instead of parts array in Cref (#16215)
d30a8b58f2	2026-08-10 14:20:39 +0200	Martin Sjölund	Reset the progress phase when an op finishes (#16226)
227e8ad8d6	2026-08-10 14:10:38 +0200	Julien Schueller	SimulationRuntime/c: Add pool save/restore in nonlinear solver wrappers (#16082)
9c633b9037	2026-08-09 21:38:16 +0200	linuslangenkamp	[GBODE] add Laguerre SIRK collocation method of order 4 (#16224)
6c722548a3	2026-08-09 19:14:28 +0200	Martin Sjölund	external "C" for the wasm-jit target (#16223)
dbf4de16a8	2026-08-09 10:42:40 +0200	Martin Sjölund	wasm-jit: event logging and event-driver defects (#16221)
d47329f531	2026-08-08 19:18:00 +0200	Martin Sjölund	Decide tearing and matrix format in the backend (#16220)
1573ffdc71	2026-08-08 16:15:47 +0200	Martin Sjölund	Fix three ScalableTestSuite solver defects (#16219)

OpenModelicaLibraryTesting Changes

Commit	Date	Author	Summary
cbd3912	2026-08-11 17:27:41 +0200	Adrian Pop	FMI build once simulate many (#297)
f052940	2026-08-07 08:03:04 +0200	Martin Sjölund	Apply __OpenModelica_simulationFlags to wasm-jit

Library Changes

Library	Change
Buildings_latest	From version 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/280e075c0b1ca8d7004c3823c5a8835cb7f3e459.zip) FMPy version 0.3.29 to 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/e2e34db8e537c893cbecd33f295b85d55d3004e1.zip) FMPy version 0.3.29

Models Affected

AixLib	AixLib.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)	SimCode performance 7.22 → 16.63
AixLib	AixLib.Fluid.Movers.Compressors.Examples.RotaryCompressorPressureHeatLosses (sim)	Simulate performance 31.97 → 18.61
AixLib	AixLib.Systems.ModularAHU.Validation.AHU2_Preheater (sim)	Failed → Simulate
AixLib	AixLib.ThermalZones.HighOrder.Examples.OFDHeatLoad (sim)	SimCode performance 0:01:36 → 32.71
BuildSysPro	BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)
BuildingSystems	BuildingSystems.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)	SimCode performance 25.70 → 9.81
Buildings_11	Buildings.Air.Systems.SingleZone.VAV.Examples.ChillerDXHeatingEconomizer (sim)	SimCode performance 18.62 → 5.74
Buildings_11	Buildings.Air.Systems.SingleZone.VAV.Examples.Guideline36 (sim)	SimCode performance 12.86 → 6.15
Buildings_11	Buildings.DHC.ETS.Combined.Validation.ChillerBorefield (sim)	SimCode performance 15.34 → 29.02
Buildings_11	Buildings.DHC.Loads.BaseClasses.Examples.CouplingRCZ6 (sim)	Verify → Failed
Buildings_11	Buildings.DHC.Plants.Combined.Validation.AllElectricCWStorage (sim)	Failed → Compile
Buildings_11	Buildings.Fluid.DXSystems.Cooling.WaterSource.Validation.VariableSpeedEnergyPlus (sim)	Compile → Verify
Buildings_12	Buildings.DHC.Loads.BaseClasses.Examples.CouplingRCZ6 (sim)	Failed → Verify
Buildings_12	Buildings.Fluid.DXSystems.Cooling.WaterSource.Validation.VariableSpeedEnergyPlus (sim)	Compile → Verify
Buildings_12	Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)	Simulate performance 1.22 → 0:07:02
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Economizers.Subsequences.Validation.BypassValve (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Economizers.Subsequences.Validation.HeatExchangerPump (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Economizers.Subsequences.Validation.PredictedOutletTemperature (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Economizers.Subsequences.Validation.Tuning_uEcoSta_uTowFanSpeMax (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Generic.PlantEnable.Validation.DisableChillers (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Generic.PlantEnable.Validation.Enable (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Generic.PlantEnable.Validation.EnableDevices (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Generic.Validation.ChillerLifts (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Generic.Validation.IdentifyStage (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Generic.Validation.TimerWithReset (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.HeadPressure.Subsequences.Validation.ControlLoop (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.HeadPressure.Subsequences.Validation.MappingWithWSE (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.HeadPressure.Subsequences.Validation.MappingWithoutWSE (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.HeadPressure.Validation.Controller (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.MinimumFlowBypass.Validation.Controller (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.MinimumFlowBypass.Validation.FlowSetpoint (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.ChilledWater.Subsequences.Validation.EnableLag_primary_dP (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.ChilledWater.Subsequences.Validation.EnableLead_headered (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.ChilledWater.Subsequences.Validation.LocalDp_setpoint (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.ChilledWater.Subsequences.Validation.Speed_primary_localDp (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.ChilledWater.Subsequences.Validation.Speed_primary_remoteDp (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.ChilledWater.Validation.Controller (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.CondenserWater.Subsequences.Validation.Speed (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.CondenserWater.Validation.Controller (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.SetPoints.Validation.ChilledWaterPlantReset (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.SetPoints.Validation.ChilledWaterSupply (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.CHWIsoVal (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.DisableChiller (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.DownStartWithOn (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.DownStartWithoutOn (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.EnableCWPump (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.EnableChiller (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.HeadControl (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.NextChiller (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.ReduceDemand (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.ResetMinBypass (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.UpEndWithOff (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Subsequences.Validation.UpEndWithoutOff (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Validation.DownWithOnOff (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Validation.DownWithoutOnOff (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Validation.UpWithOnOff (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.Processes.Validation.UpWithoutOnOff (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.Capacities_u (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.Capacities_uLow_uHig (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.CapacityRequirement (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.Change (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.ChillerIndices_u (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.Configurator_uChiAva (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.Down (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.FailsafeCondition (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.Initial_WSE (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.Initial_noWSE (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.PartLoadRatios_u_uTyp (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Subsequences.Validation.Up (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Validation.SetpointController_WSE (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Staging.SetPoints.Validation.SetpointController_noWSE (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.FanSpeed.EnabledWSE.Subsequences.Validation.IntegratedOperation (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.FanSpeed.EnabledWSE.Subsequences.Validation.WSEOperation (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.FanSpeed.ReturnWaterTemperature.Subsequences.Validation.Coupled (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.FanSpeed.ReturnWaterTemperature.Subsequences.Validation.Enable (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.FanSpeed.ReturnWaterTemperature.Subsequences.Validation.LessCoupled (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.FanSpeed.ReturnWaterTemperature.Subsequences.Validation.Setpoint (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.Staging.Subsequences.Validation.CellsNumber (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.Staging.Subsequences.Validation.ChangeCells (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.Staging.Subsequences.Validation.StageProcesses (sim)	Simulate → Verify
Buildings_latest	Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Towers.Staging.Validation.Controller (sim)	Simulate → Verify
Buildings_latest	Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.BatteryControl (sim)	Simulate → Verify
Buildings_latest	Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.ChillerSetPointControl (sim)	Simulate → Verify
Buildings_latest	Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.ChillerSwitch (sim)	Simulate → Verify
Buildings_latest	Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.KMinusU (sim)	Simulate → Verify
Buildings_latest	Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.LinearPiecewiseTwo (sim)	Simulate → Verify
Buildings_latest	Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.RequestCounter (sim)	Simulate → Verify
Buildings_latest	Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.TrimAndRespond (sim)	Simulate → Verify
Buildings_latest	Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl (sim)	Simulate → Verify
Buildings_latest	Buildings.Fluid.Geothermal.Borefields.Examples.Borefields (sim)	Verify → Failed
IDEAS_dev	IDEAS.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)	SimCode performance 7.56 → 17.65
Modelica_3.2.3	Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_YD (sim)	Verify → Compile
Modelica_4.0.0	Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_YD (sim)	Compile → Verify
Modelica_4.1.0	Modelica.Electrical.PowerConverters.Examples.ACAC.SoftStarter (sim)	Compile → Simulate
Modelica_4.1.0	Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_YD (sim)	Compile → Verify
Modelica_trunk	Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_YD (sim)	Compile → Verify
Physiolibrary	Physiolibrary.Organs.Lungs.Examples.MeanLungsTest (sim)	Compile → Failed
SOFCPoliMi	SOFCPoliMi.Tests.BenchmarkCammarataIndex1 (sim)	Failed → Compile
SOFCPoliMi	SOFCPoliMi.Tests.BenchmarkLinConcLosses (sim)	Failed → Compile
SOFCPoliMi	SOFCPoliMi.Tests.BenchmarkLinConcLossesHigherCurrent (sim)	SimCode performance 16.52 → 31.97
SOFCPoliMi	SOFCPoliMi.Tests.BenchmarkNonLinConcLosses (sim)	SimCode performance 25.41 → 0:01:00
ScalableTestSuite	ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_28_M_28 (sim)	Verify → Failed
ScalableTestSuite	ScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_12800 (sim)	Verify → Compile
ScalableTestSuite	ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_160 (sim)	Simulate → Verify
ScalableTestSuite	ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_40 (sim)	Simulate → Verify
ScalableTestSuite	ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_80 (sim)	Simulate → Verify
ScalableTestSuite	ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_1600 (sim)	Simulate performance 34.38 → 58.69
ScalableTestSuite	ScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_3200 (sim)	Compile performance 0:02:59 → 0:01:44
ScalableTestSuite_noopt	ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_160 (sim)	Compile → Verify
ScalableTestSuite_noopt	ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_40 (sim)	Compile → Verify
ScalableTestSuite_noopt	ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_80 (sim)	Compile → Verify
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_12800 (sim)	Simulate performance 7.00 → 17.72
StewartPlatform	StewartPlatform.Scenarios.StewartPlatform_InverseDynamic2 (sim)	Compile performance 0:03:22 → 0:06:00
StewartPlatform	StewartPlatform.Scenarios.StewartPlatform_InverseDynamic3 (sim)	Compile performance 0:03:16 → 0:06:02
ThermoPower	ThermoPower.Test.DistributedParameterComponents.TestRefrigerantEvaporator (sim)	Compile → Simulate
ThermofluidStream_dev	ThermofluidStream.Examples.HeatPump (sim)	Simulate performance 0:21:02 → 48.23