OpenModelica cvode from 2026-07-12 18:03:54 to 2026-07-16 05:08:33

Summary

OMC Commits17
Libraries Changed3
Number of Improvements15
Number of Regressions5
Number of Performance Improvements4
Number of Performance Regressions12

OpenModelica Changes

CommitDateAuthorSummary
0a341291012026-07-15 23:01:50 +0200Martin Sjölundwasm sim: fast param resim + enum dropdowns (#16056)
ef27003d482026-07-15 21:20:45 +0200Martin Sjölundwasm-jit: fix param override + editable starts (#16055)
d6401a1d232026-07-15 15:21:49 +0200AndreasFMI: pass func name through internal getters for logging (#16048)
25992360072026-07-15 14:13:55 +0200AndreasAdd Enterprise Linux and Fedora Jenkins stages (#16016)
20526b91be2026-07-15 13:55:09 +0200arun3688update OMSimulator with cli support (#16050)
fa840c508e2026-07-15 11:06:10 +0200kabdelhak[NB] Fix Buildings ConstantSpeedPumpStage regression from #15045 (#16047)
7b3b89d8b22026-07-14 21:22:39 +0200Julien SchuellerOMCompiler: Add --export-fmu cli option (#16029)
fd7f55d9b42026-07-14 20:34:23 +0200Julien SchuellerOMCompiler: Reformat old scripts (#15983)
81eb463ea32026-07-14 18:13:29 +0200Julien SchuellerOMCompiler: Reinitialize solver after fmi2SetFMUstate (#16027)
b7c5ebc8a52026-07-14 12:45:51 +0200AndreasReduce Jenkinsfile CPS-compiled method size (#16044)
5f470624f42026-07-13 21:58:53 +0200Martin SjölundReplace anyhow errors with static strings (#16046)
676ebe780b2026-07-13 20:44:47 +0200Martin SjölundAdd optional mimalloc/jemalloc global allocators (#16045)
7ce6f298932026-07-13 14:27:11 +0200Julien SchuellerSimulationRuntime: consistent output values in FMI ME GetReal calls (#16019)
a1842a78b72026-07-13 13:54:13 +0200Martin Sjölundmmtorust: borrow arrays once per function (#16043)
a751d31b1b2026-07-13 10:31:12 +0200Martin Sjölundwasm-jit: DASSL fidelity (#16040)
dffc9f239c2026-07-13 00:07:24 +0200kabdelhak[NB] Fix SteadyState init regression from #15045: restore addInitialStartOccurrences (#16041)
22697edefa2026-07-12 20:54:13 +0200Martin SjölundRust: Fix execstime semantics (#16042)

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
6697fc02026-07-06 18:25:17 +0200linuslangenkamp[GBODE] set Radau IIA 3-stage, remove embedded error estimate (#288)
d357aff2026-06-12 13:26:07 +0200AndreasFix OMSimulator submodule update when directory layout changes (#287)

Library Changes

LibraryChange
Buildings_latestFrom version 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/0192839096eb88d9d260b9390bff8efa3bca02b5.zip) to 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/36854481a51c26c04c6333ab07d75880d24fa097.zip)
ThermofluidStreamConfiguration hash (OMC settings or the testing script changed)
ThermofluidStream_devFrom version 1.3.0-main (6115f1350febbe082f25084b41740aa97660be82) to 1.3.0-main (7b20040b4907ae9cd0eb645e56be0c867e6afe8f)

Models Affected

Buildings_12Buildings.DHC.Examples.Combined.SeriesConstantFlow (sim)Compile → Simulate
Buildings_latestBuildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.GFunction_100boreholes (sim)Simulate → Verify
DynawoDynawo.Examples.RVS.TestCases.TestB.TestBNoSvcLoadReset (sim)Simulate performance 43.97 → 21.75
Modelica_DeviceDriversModelica_DeviceDrivers.Blocks.Examples.TestSerialPackager_UDP (sim)Compile → Simulate
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_8_M_4 (sim)Simulate → FrontEnd
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_6_M_4 (sim)Simulate performance 19.62 → 10.68
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinear_N_20_M_20 (sim)BackEnd performance 6.09 → 12.46
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinear_N_40_M_40 (sim)FrontEnd performance 6.58 → 12.37
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_56_M_56 (sim)Templates performance 8.03 → 15.10
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)SimCode performance 7.55 → 14.20 Templates performance 12.55 → 21.76
ScalableTestSuiteScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_25600 (sim)BackEnd performance 19.49 → 34.59
ScalableTestSuiteScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEventsManyConditions_N_1000_M_1000 (sim)Simulate performance 14.03 → 25.13
ScalableTestSuiteScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEventsManyConditions_N_2000_M_10 (sim)Simulate performance 9.20 → 17.84
ScalableTestSuiteScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEventsManyConditions_N_8000_M_10 (sim)Verify → Templates
ScalableTestSuiteScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEvents_N_1000_M_1000 (sim)Simulate performance 8.42 → 17.27
ScalableTestSuiteScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEvents_N_8000_M_10 (sim)Compile → Verify
ScalableTestSuiteScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_1600 (sim)Simulate performance 24.52 → 12.37
ScalableTestSuiteScalableTestSuite.Thermal.HeatExchanger.ScaledExperiments.CocurrentHeatExchangerEquations_N_320 (sim)Simulate performance 10.96 → 5.61
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_56_M_56 (sim)Simulate performance 5.89 → 18.96
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_80_M_80 (sim)Verify → Failed
ScalableTestSuite_nooptScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_1600 (sim)Simulate performance 4.95 → 12.49
ScalableTestSuite_nooptScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEventsManyConditions_N_1000_M_1000 (sim)Simulate performance 11.05 → 19.70
ScalableTestSuite_nooptScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEvents_N_2000_M_10 (sim)Simulate performance 17.73 → 32.24
ThermofluidStreamThermofluidStream.Media.Tests.TestXRGMedia (sim)Verify → Simulate
ThermofluidStream_devThermofluidStream.Examples.HeatPump (sim)Failed → Compile
ThermofluidStream_devThermofluidStream.Examples.VaporCycle (sim)Failed → Verify
ThermofluidStream_devThermofluidStream.FlowControl.Tests.PCV (sim)Verify → Simulate
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Condenser (sim)Failed → Simulate
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Evaporator (sim)Failed → Simulate
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.FlowRes (sim)Failed → Simulate
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Recuperator (sim)Failed → Verify
ThermofluidStream_devThermofluidStream.Media.Tests.TestXRGMedia (sim)Failed → Simulate
ThermofluidStream_devThermofluidStream.Media.additionalMedia.Incompressible.Tests.TestLiqLoopDowcal100 (sim)Failed → Simulate
ThermofluidStream_devThermofluidStream.Media.additionalMedia.Incompressible.Tests.TestLiqLoopJP8 (sim)Failed → Simulate
ThermofluidStream_devThermofluidStream.Media.additionalMedia.SingleGasAndIncompressible.Tests.TestLiqLoopJP8DryAir (sim)Failed → Simulate
ThermofluidStream_devThermofluidStream.Undirected.HeatExchangers.Tests.TestDiscretizedHEXvsDir (sim)Failed → Verify