OpenModelica v1.26-fmi from 2026-10-17 06:43:43 to 2026-10-24 06:45:16

Summary

OMC Commits	0
Libraries Changed	10
Number of Improvements	17
Number of Regressions	28
Number of Performance Improvements	4
Number of Performance Regressions	3

OpenModelica Changes

Commit	Date	Author	Summary

OpenModelicaLibraryTesting Changes

Commit	Date	Author	Summary
a135e0b	2026-10-24 00:05:01 +0200	Francesco Casella	Increased timeout for LargeTestSuite.Thermal.Advection.SimpleAdvection_N_409600
02a40ec	2026-10-23 22:19:16 +0200	Francesco Casella	Reinstate -O3 in LargeTestSuite_NB for improved runtime performance

Library Changes

Library	Change
Buildings_12	From version 12.1.3-maint.12.x (5173c8be1a143096f36e4191613eb532f703b54c) OMSimulator v3.0.0.post200-g82c99d7-linux to 12.1.3-maint.12.x (fb087bf2d443c9a5537d6afbf4d79df0da13faf3) OMSimulator v3.0.0.post206-g9c3984b-linux
Buildings_latest	From version 14.1.0-master (11e34d2187abaac63d5b63b269a7e16543403441) OMSimulator v3.0.0.post200-g82c99d7-linux to 15.0.0-master (68530a94345fee4f0eb700d547a9f11520c11b0c) OMSimulator v3.0.0.post206-g9c3984b-linux
Dynawo_dev	From version 2.0.0-master (11ddaccf7b9869a3f1bbd4d11bb6f2db749b069b) OMSimulator v3.0.0.post200-g82c99d7-linux to 2.0.0-master (6e26b2b06f8dc04fa7b41b6aed3bfad9d10ece02) OMSimulator v3.0.0.post206-g9c3984b-linux
ModelicaTest_trunk	From version trunk (b6eaa45738b32a5d777b0ce16ec8ebe1ab1ad5b8) OMSimulator v3.0.0.post200-g82c99d7-linux to trunk (c34afb3f63ec0e5f732b94f0356736f61c1ac8c2) OMSimulator v3.0.0.post206-g9c3984b-linux
OpenIPSL_2.0.0	From version 2.0.0 (052ec37cdfd40e6e5506ec146d98afd40fe2792f) OMSimulator v3.0.0.post200-g82c99d7-linux to 2.0.0 (052ec37cdfd40e6e5506ec146d98afd40fe2792f) OMSimulator v3.0.0.post206-g9c3984b-linux
ScalableTestGrids_noopt	From version 1.2.0 (f18d08e87f948a85992343913e1adfd7d24cad95) OMSimulator v3.0.0.post200-g82c99d7-linux to 1.2.0 (f18d08e87f948a85992343913e1adfd7d24cad95) OMSimulator v3.0.0.post206-g9c3984b-linux
ScalableTestSuite	From version 2.2.0-master (2e288e71eb0a7834310827144462726180d10500) OMSimulator v3.0.0.post200-g82c99d7-linux to 2.2.0-master (2e288e71eb0a7834310827144462726180d10500) OMSimulator v3.0.0.post206-g9c3984b-linux
ScalableTestSuite_noopt	From version 2.2.0-master (2e288e71eb0a7834310827144462726180d10500) OMSimulator v3.0.0.post200-g82c99d7-linux to 2.2.0-master (2e288e71eb0a7834310827144462726180d10500) OMSimulator v3.0.0.post206-g9c3984b-linux
ThermofluidStream	From version 1.4.1 (04ed5dcf7f8c6974b90c2e6c57eea7c0680ab773) OMSimulator v3.0.0.post200-g82c99d7-linux to 1.4.1 (a2faa411bc7ac7de9b46c5c30b6850505cc05dac) OMSimulator v3.0.0.post206-g9c3984b-linux
ThermofluidStream_dev	From version 1.4.1-main (04ed5dcf7f8c6974b90c2e6c57eea7c0680ab773) OMSimulator v3.0.0.post200-g82c99d7-linux to 1.4.1-main (a2faa411bc7ac7de9b46c5c30b6850505cc05dac) OMSimulator v3.0.0.post206-g9c3984b-linux

Models Affected

Buildings_12	Buildings.Fluid.Boilers.Examples.BoilerPolynomial (sim)	Verify → Simulate
Buildings_12	Buildings.Fluid.Boilers.Examples.BoilerTable (sim)	Verify → Simulate
Buildings_12	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case920 (sim)	Compile → Simulate
Buildings_latest	Buildings.Airflow.Multizone.Examples.ChimneyShaftWithVolume (sim)	Verify → Simulate
Buildings_latest	Buildings.Airflow.Multizone.Examples.PressurizationData (sim)	Verify → Simulate
Buildings_latest	Buildings.Airflow.Multizone.Examples.ReverseBuoyancy (sim)	Verify → Simulate
Buildings_latest	Buildings.Airflow.Multizone.Validation.ThreeRoomsContamDiscretizedDoor (sim)	Simulate → Verify
Buildings_latest	Buildings.Applications.DataCenters.DXCooled.Examples.DXCooledAirsideEconomizer (sim)	Compile → Verify
Buildings_latest	Buildings.Controls.Predictors.Examples.BESTEST (sim)	Verify → Compile
Buildings_latest	Buildings.Examples.VAVCO2.VAVSystemCTControl (sim)	Verify → Simulate
Buildings_latest	Buildings.Examples.VAVReheat.Validation.TraceSubstance (sim)	Compile → Failed
Buildings_latest	Buildings.Fluid.Boilers.Examples.BoilerPolynomial (sim)	Verify → Simulate
Buildings_latest	Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop (sim)	Verify → Compile
Buildings_latest	Buildings.Fluid.Boilers.Examples.BoilerTable (sim)	Verify → Simulate
Buildings_latest	Buildings.Fluid.HeatExchangers.Examples.WetCoilCounterFlowPIControlAutoTuningFailure (sim)	Simulate → Verify
Buildings_latest	Buildings.Fluid.HydronicConfigurations.ActiveNetworks.Examples.InjectionThreeWay (sim)	Verify → Simulate
Buildings_latest	Buildings.Fluid.Interfaces.Examples.Humidifier_u (sim)	Verify → Simulate
Buildings_latest	Buildings.Fluid.Movers.Validation.ControlledFlowMachineDynamic (sim)	Verify → Simulate
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case640 (sim)	Simulate → Compile
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case660 (sim)	Compile → Simulate
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case680 (sim)	Compile → Simulate
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case695 (sim)	Simulate → Compile
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case910 (sim)	Compile → Simulate
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case920 (sim)	Simulate performance 13.95 → 39.28
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case930 (sim)	Compile → Simulate
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950 (sim)	Compile → Simulate
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case980 (sim)	Simulate performance 54.51 → 19.56
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case985 (sim)	Compile → Simulate
Dynawo_dev	Dynawo.Examples.GridCodeSimulations.RunSimulations (sim)	Simulate → FrontEnd
Dynawo_dev	Dynawo.Examples.GridCodeSimulations.SheetSimulations.SheetI5 (sim)	Verify → FrontEnd
Dynawo_dev	Dynawo.Examples.HVDC.HVDC (sim)	Simulate → Verify
ModelicaTest_trunk	ModelicaTest.MultiBody.Parts.FreeBodiesEnforceStatesFalse (sim)	BackEnd → Compile
OpenIPSL_2.0.0	OpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents (sim)	Failed → Compile
OpenIPSL_2.0.0	OpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents2 (sim)	Failed → Compile
OpenIPSL_2.0.0	OpenIPSL.Examples.DAEMode.N44_Original_Systems.Nordic44_Original_Case_Bus_Fault (sim)	SimCode performance 0:03:01 → 0:01:25
ScalableTestGrids_noopt	ScalableTestGrids.Models.Type1.Type1_N_4_M_4 (sim)
ScalableTestGrids_noopt	ScalableTestGrids.Models.Type2.Type2_tapEv___N_6_M_4 (sim)
ScalableTestSuite	ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillator_N_800 (sim)	Simulate performance 13.71 → 6.98
ScalableTestSuite	ScalableTestSuite.Mechanical.Strings.ScaledExperiments.StringModelica_N_32 (sim)	Verify → Compile
ScalableTestSuite	ScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_4 (sim)	Verify → Failed
ScalableTestSuite_noopt	ScalableTestSuite.Electrical.BreakerCircuits.ScaledExperiments.BreakerNetwork_N_1280_M_10 (sim)	Compile → Failed
ScalableTestSuite_noopt	ScalableTestSuite.Mechanical.FlexibleBeam.ScaledExperiments.FlexibleBeamModelica_N_64 (sim)	Compile → Failed
ScalableTestSuite_noopt	ScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_16 (sim)	Failed → Verify
ScalableTestSuite_noopt	ScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_4 (sim)	Failed → Verify
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_1600 (sim)	Simulate → Compile
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_1600 (sim)	Simulate performance 18.12 → 35.28
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_1280 (sim)	Simulate performance 13.64 → 6.41
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.HeatExchanger.ScaledExperiments.CocurrentHeatExchangerEquations_N_640 (sim)	Verify → Compile
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.HeatExchanger.ScaledExperiments.CounterCurrentHeatExchangerEquations_N_640 (sim)	Verify → Compile
ThermofluidStream	ThermofluidStream.Examples.HeatPump (sim)	Simulate performance 26.81 → 48.32
ThermofluidStream	ThermofluidStream.HeatExchangers.Tests.FlowRes (sim)	Compile → Simulate
ThermofluidStream	ThermofluidStream.Media.additionalMedia.SingleGasAndIncompressible.Tests.TestLiqLoopJP8DryAir (sim)	Simulate → Compile
ThermofluidStream_dev	ThermofluidStream.HeatExchangers.Tests.FlowRes (sim)	Simulate → Compile
ThermofluidStream_dev	ThermofluidStream.Media.additionalMedia.SingleGasAndIncompressible.Tests.TestLiqLoopJP8DryAir (sim)	Simulate → Compile