OpenModelica wasm-jit-cs from 2026-09-04 15:19:25 to 2026-09-06 08:55:08

Summary

OMC Commits28
Libraries Changed2
Number of Improvements41
Number of Regressions8
Number of Performance Improvements42
Number of Performance Regressions13

OpenModelica Changes

CommitDateAuthorSummary
d04e9e9f2b2026-09-06 07:49:56 +0200Martin Sjölundwasm-jit: a model throw in ida_jac is recoverable (#16594)
989bb321a92026-09-05 23:32:06 +0200Martin Sjölundwasm-jit: take the math builtins from the host (#16593)
40152c0fb12026-09-05 21:09:15 +0200Martin SjölundUpdate fmi-ls-dae to its 1.0.0-alpha.1 draft (#16592)
93920a23e12026-09-05 20:10:08 +0200Martin Sjölundwasm FMU DAE mode, and the gaps it exposed (#16590)
02a30e519f2026-09-05 18:38:31 +0200Martin SjölundKey the runtime's per-system tables by system (#16589)
555e40ee772026-09-05 17:23:35 +0200Martin SjölundNB: cut SimCode allocations, dedupe upgrade rows (#16588)
09324d0e382026-09-05 08:20:41 +0200Martin SjölundBound resizable Jacobian columns from below too
3b0041ba992026-09-04 11:49:55 +0200Martin SjölundArrow result files, shared readers and writers
044242ca4a2026-09-05 02:12:13 +0200Martin SjölundRust: add the two new Vector functions
75c2c2663c2026-09-05 01:27:32 +0200Martin SjölundNB: skip the negated pass of a transpose
11dffd2a0a2026-09-05 00:46:20 +0200Martin SjölundNB: convert a SimVar's name only once
6181a42fa12026-09-05 00:23:19 +0200Martin SjölundNB: do not build a closure per SimVar attribute
f9cd379b0f2026-09-04 23:46:58 +0200Martin SjölundNF: cache the partial DAE type of a class
1d7027d04a2026-09-04 22:36:20 +0200Martin SjölundNB: store the adjacency matrix flat
1ac9e85c0b2026-09-05 01:09:38 +0200Martin SjölundIndex the per-system statistics table
94a4a664f92026-09-04 23:42:36 +0200Martin SjölundClock functionZeroCrossings in LOG_STATS_V
4d6977f68d2026-09-04 23:37:23 +0200Martin SjölundRestart hybrd from nlsxOld, not the slots
773cee0b822026-09-04 22:46:07 +0200Martin SjölundKeep hybrd's x-scaling flag across NLS solves
4b216aceb72026-09-04 23:26:52 +0200Martin SjölundNB: halve the allocations of Causalize (#16585)
634ee575632026-09-04 19:33:48 +0200Martin Sjölundwasm-jit: homotopy arithmetic and extern protos
73a0170fc32026-09-04 17:36:41 +0200Per ÖstlundHandle noEvent with calls with multiple outputs (#16583)
0a252baa622026-09-04 15:21:55 +0200Martin SjölundClose the OMSimulator log explicitly
99cc2af0f32026-09-04 13:42:50 +0200Martin SjölundRecord OMSimulator's log-file notice
43d11076692026-09-04 11:58:40 +0200Martin SjölundKeep OMSimulator step counts out of the tests
de5758d71e2026-09-04 10:43:48 +0200Martin SjölundUpdate DualMassOscillator solver statistics
89d4536bd82026-09-04 09:29:04 +0200Martin Sjölundwasm FMU ME: start DASKR from the FMU's derivatives
115121e8572026-09-04 09:28:44 +0200Martin SjölundFMU export: report the states' nominal values
9534cedcf52026-09-04 09:28:31 +0200Martin Sjölundwasm FMU ME: the Jacobian over array states

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
283f2312026-09-04 21:05:10 +0200Martin SjölundPublish the libraries a few at a time (#351)
cd9e3962026-09-04 18:33:25 +0200Martin SjölundRun C+Rust on 9950x

Library Changes

LibraryChange
Buildings_latestFrom version 14.0.0-master (5b2c8f97eac0b935ec869a457b488fc6655fb165) to 14.0.0-master (ec22b31260bb07185fe3e5196a7a64bca1d4c739)
Dynawo_devFrom version 1.8.0-master (1ce06cddbe6c1db689e60f06a1db099551ece32c) to 1.8.0-master (62d451ac55da8dd6c0331d1a44afa67cb0ac79ed)

Models Affected

BuildSysProBuildSysPro.Building.Examples.OneZone (sim)Simulate performance 43.14 → 20.07
BuildingSystemsBuildingSystems.Fluid.Examples.FlowSystem.Simplified2 (sim)Simulate performance 0:03:40 → 0.00
BuildingSystemsBuildingSystems.HAM.HeatConduction.Examples.HeatConduction1DArray (sim)Simulate performance 20.88 → 8.30
Buildings_11Buildings.DHC.Loads.BaseClasses.Validation.BenchmarkFlowDistribution2 (sim)Simulate performance 12.00 → 25.00
Buildings_12Buildings.Examples.VAVReheat.Validation.TraceSubstance (sim)Simulate performance 0:01:39 → 53.72
Buildings_12Buildings.Fluid.Geothermal.ZonedBorefields.Validation.FEFLOW.InletTemperaturePulse (sim)Compile → Verify
Buildings_latestBuildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithDHW (sim)Compile → Simulate
Buildings_latestBuildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithoutDHW (sim)Simulate → Compile
Buildings_latestBuildings.DHC.Examples.Combined.SeriesVariableFlowAgentControl (sim)Simulate performance 0:01:44 → 0.00
Buildings_latestBuildings.DHC.Loads.BaseClasses.Validation.BenchmarkFlowDistribution2 (sim)Simulate performance 12.01 → 23.00
Buildings_latestBuildings.Examples.FanCoils.FourPipe (sim)Simulate performance 17.48 → 50.19
Buildings_latestBuildings.Fluid.Geothermal.ZonedBorefields.Validation.FEFLOW.InletTemperaturePulse (sim)Compile → Verify
ClaRaClaRa.Components.FlueGasCleaning.Desulfurization.Check.Test_FlueGasCleaning (sim)Compile → Verify
ClaRaClaRa.Components.FlueGasCleaning.E_Filter.Check.test_E_Filter (sim)Compile → Simulate
ClaRaClaRa.Components.Mills.PhysicalMills.Check.TestMillBox_1 (sim)Compile → Simulate
ClaRaClaRa.Components.Mills.PhysicalMills.Check.TestMillBox_2 (sim)Simulate performance 28.90 → 0:01:27
ClaRaClaRa.Components.Mills.PhysicalMills.Volumes.Check.TestAerosolVolume (sim)Compile → Simulate
ClaRaClaRa.Components.TurboMachines.Compressors.Check.Test_CompressorGas_L1_stageStacked (sim)Compile → Verify
ClaRaClaRa.Components.TurboMachines.Turbines.Check.testStackedTurbineStages (sim)Compile → Verify
ClaRa_devClaRa.Components.FlueGasCleaning.Desulfurization.Check.Test_FlueGasCleaning (sim)Compile → Verify
ClaRa_devClaRa.Components.FlueGasCleaning.E_Filter.Check.test_E_Filter (sim)Compile → Simulate
ClaRa_devClaRa.Components.Mills.PhysicalMills.Check.TestMillBox_1 (sim)Compile → Simulate
ClaRa_devClaRa.Components.Mills.PhysicalMills.Check.TestMillBox_2 (sim)Simulate performance 28.62 → 0:01:24
ClaRa_devClaRa.Components.Mills.PhysicalMills.Volumes.Check.TestAerosolVolume (sim)Compile → Simulate
ClaRa_devClaRa.Components.TurboMachines.Compressors.Check.Test_CompressorGas_L1_stageStacked (sim)Compile → Verify
ClaRa_devClaRa.Components.TurboMachines.Turbines.Check.testStackedTurbineStages (sim)Compile → Verify
DynawoDynawo.Examples.RVS.TestCases.TestA.TestAAlphaBetaLoadNoRestorative (sim)Compile → Simulate
DynawoDynawo.Examples.RVS.TestCases.TestA.TestAAlphaBetaLoadRestorative (sim)Compile → Simulate
DynawoDynawo.Examples.RVS.TestCases.TestA.TestAShuntNoRestorative (sim)Compile → Simulate
DynawoDynawo.Examples.RVS.TestCases.TestB.TestBNoSvcLoadReset (sim)Compile → Simulate
DynawoDynawo.Examples.RVS.TestCases.TestB.TestBNoSvcNoLoadReset (sim)Compile → Simulate
DynawoDynawo.Examples.RVS.TestCases.TestB.TestBSvcLoadReset (sim)Compile → Simulate
DynawoDynawo.Examples.RVS.TestCases.TestB.TestBSvcNoLoadReset (sim)Compile → Simulate
DynawoDynawo.Examples.Wind.IEC.Neplan.WPP4ACurrentSource2020 (sim)Simulate performance 20.60 → 8.11
DynawoDynawo.Examples.Wind.IEC.Neplan.WPP4ACurrentSource2020FOCB (sim)Simulate performance 12.45 → 4.90
DynawoDynawo.Examples.Wind.IEC.Neplan.WPP4BCurrentSource2020 (sim)Simulate performance 22.26 → 8.65
DynawoDynawo.Examples.Wind.IEC.Neplan.WPP4BCurrentSource2020FOCB (sim)Simulate performance 14.52 → 5.74
DynawoDynawo.Examples.Wind.IEC.Neplan.WT4ACurrentSource2020 (sim)Simulate performance 10.30 → 5.33
DynawoDynawo.Examples.Wind.IEC.Neplan.WT4BCurrentSource2020 (sim)Simulate performance 11.51 → 5.52
Dynawo_devDynawo.Examples.IEEE14.TestCases.IEEE14CLA (sim)FrontEnd → SimCode
Dynawo_devDynawo.Examples.Nordic.TestCases.TestCase (sim)Simulate performance 0:04:00 → 0.00
Dynawo_devDynawo.Examples.RVS.TestCases.TestA.TestAAlphaBetaLoadNoRestorative (sim)Simulate performance 0:04:00 → 0.00
Dynawo_devDynawo.Examples.RVS.TestCases.TestA.TestAAlphaBetaLoadRestorative (sim)Simulate performance 0:04:00 → 0.00
Dynawo_devDynawo.Examples.RVS.TestCases.TestA.TestAShuntNoRestorative (sim)Compile → Simulate
Dynawo_devDynawo.Examples.RVS.TestCases.TestB.TestBNoSvcLoadReset (sim)Simulate performance 0:04:00 → 0.00
Dynawo_devDynawo.Examples.RVS.TestCases.TestB.TestBNoSvcNoLoadReset (sim)Simulate performance 0:04:00 → 0.00
Dynawo_devDynawo.Examples.RVS.TestCases.TestB.TestBSvcLoadReset (sim)Simulate performance 0:04:00 → 0.00
Dynawo_devDynawo.Examples.RVS.TestCases.TestB.TestBSvcNoLoadReset (sim)Simulate performance 0:04:00 → 0.00
Dynawo_devDynawo.Examples.Wind.IEC.Neplan.WPP4ACurrentSource2015 (sim)Simulate performance 18.22 → 8.63
Dynawo_devDynawo.Examples.Wind.IEC.Neplan.WPP4ACurrentSource2020 (sim)Simulate performance 17.92 → 9.61
Dynawo_devDynawo.Examples.Wind.IEC.Neplan.WPP4ACurrentSource2020UDip (sim)Simulate performance 0.00 → 0:04:08
Dynawo_devDynawo.Examples.Wind.IEC.Neplan.WPP4BCurrentSource2020 (sim)Simulate performance 17.99 → 10.42
Dynawo_devDynawo.Examples.Wind.IEC.Neplan.WPP4BCurrentSource2020FOCB (sim)Simulate performance 10.79 → 5.72
HanserModelicaHanserModelica.SynchronousMachines.SMEE_Rectifier (sim)Compile → Simulate
Modelica_3.2.3Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SMEE_Rectifier (sim)Compile → Verify
Modelica_4.0.0Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.SMEE_Rectifier (sim)Compile → Verify
Modelica_4.0.0Modelica.Media.Examples.SolveOneNonlinearEquation.InverseIncompressible_sh_T (sim)Compile → Verify
Modelica_4.1.0Modelica.Fluid.Examples.BranchingDynamicPipes (sim)Verify → Compile
Modelica_4.1.0Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.SMEE_Rectifier (sim)Compile → Verify
Modelica_DeviceDriversModelica_DeviceDrivers.Blocks.Examples.TestSerialPackager_UDP (sim)Simulate → Compile
Modelica_DeviceDriversModelica_DeviceDrivers.Blocks.Examples.TestSerialPackager_UDPAutoBufferSize (sim)Simulate → Compile
Modelica_DeviceDriversModelica_DeviceDrivers.Blocks.Examples.TestSerialPackager_UDPExternalTrigger (sim)Compile → Simulate
Modelica_trunkModelica.Fluid.Examples.BranchingDynamicPipes (sim)Verify → Compile
Modelica_trunkModelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.SMEE_Rectifier (sim)Compile → Verify
OpenIMDML_mainOpenIMDML.Examples.MultiDomainExamples.MultiDomainThreePhaseInductionMotors.MultiDomainThreePhaseMotorValidation.MultiDomainMotor (sim)Simulate performance 18.11 → 41.53
PhotoVoltaics_TGMPhotoVoltaics_TGM.TGM_Comax_Analytical_2016 (sim)Simulate performance 0:03:47 → 0.00
PhotoVoltaics_TGMPhotoVoltaics_TGM.TGM_Comax_WeatherData_OneYear (sim)Simulate → Compile
PhotoVoltaics_TGMPhotoVoltaics_TGM.TGM_Trina_Analytical_2016 (sim)Simulate performance 0:03:51 → 0.00
PhotoVoltaics_TGMPhotoVoltaics_TGM.TGM_Trina_WeatherData_OneYear (sim)Simulate → Compile
PhysiolibraryPhysiolibrary.Organs.Lungs.Examples.MeanLungsTest (sim)Simulate performance 0.00 → 0:04:25
PowerSystemsPowerSystems.Examples.AC3ph.Generation.TieLine (sim)Simulate performance 0:01:08 → 34.36
PowerSystems_latestPowerSystems.Examples.AC3ph.Generation.TieLine (sim)Simulate performance 0:01:10 → 32.83
ScalableTestGrids_nooptScalableTestGrids.GridModelBuilders.Type1Sample_N_2_M_2 (sim)Simulate performance 28.96 → 4.04
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_2_M_2 (sim)Simulate performance 24.34 → 4.01
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_2_M_4 (sim)Simulate performance 42.07 → 4.94
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_3_M_4 (sim)Compile → Simulate
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_4_M_4 (sim)Simulate performance 0:04:02 → 0.00
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_8_M_4 (sim)Failed → Compile
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_reduced_N_2_M_4 (sim)Simulate performance 40.50 → 3.87
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_reduced_N_3_M_4 (sim)Compile → Simulate
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_reduced_N_4_M_4 (sim)Compile → Simulate
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_noTap___N_2_M_2 (sim)Simulate performance 29.65 → 4.18
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_noTap___N_2_M_4 (sim)Simulate performance 0:01:00 → 5.43
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_noTap___N_3_M_4 (sim)Compile → Simulate
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapEv___N_2_M_2 (sim)Simulate performance 25.26 → 4.61
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapEv___N_2_M_4 (sim)Simulate performance 52.26 → 5.99
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapEv___N_3_M_4 (sim)Compile → Simulate
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapEv___N_4_M_4 (sim)Templates performance 34.85 → 17.37 Simulate performance 0:04:00 → 0.00
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_2_M_2 (sim)Simulate performance 25.15 → 4.24
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_2_M_4 (sim)Simulate performance 0:01:00 → 5.37
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_3_M_4 (sim)Compile → Simulate
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_4_M_4 (sim)Templates performance 35.22 → 17.71
ScalableTestSuiteScalableTestSuite.Electrical.BreakerCircuits.ScaledExperiments.BreakerNetworkDelayed_N_1280_M_10 (sim)Simulate performance 11.88 → 31.07
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_56_M_56 (sim)Simulate performance 0.00 → 13.00
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinear_N_56_M_56 (sim)Compile → SimCode
ScalableTestSuiteScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEventsManyConditions_N_8000_M_10 (sim)Simulate performance 9.25 → 18.36
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_56_M_56 (sim)Simulate performance 0.00 → 10.68
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinear_N_56_M_56 (sim)Simulate performance 15.79 → 0.00
ThermoPower_4.0.0-devThermoPower.Examples.CISE.Simulators.CISESim180504 (sim)Compile → Simulate
ThermoPower_4.0.0-devThermoPower.Test.GasComponents.TestGasValve (sim)Compile → Simulate
ThermoSysProThermoSysPro.Examples.Book.PowerPlants.CombinedCyclePowerPlant.LoadVariation (sim)Simulate performance 0.00 → 0:04:01
ThermoSysProThermoSysPro.Fluid.Examples.Book.PowerPlants.CombinedCyclePowerPlant.GasTurbineTrip (sim)Simulate performance 0:04:24 → 0.00
ThermoSysProThermoSysPro.Fluid.Examples.SimpleExamples.TestDynamicWaterHeatingOnePipe (sim)Compile → Simulate
ThermoSysProThermoSysPro.Properties.WaterSteamSimple.Validation.Bench.Test1_IF97 (sim)Simulate performance 40.65 → 6.92