Environment - simulationEnvironment: startTime=0 stopTime=10000 tolerance=1e-06 numberOfIntervals=2500 stepSize=4 Regular simulation: ./IDEAS_dev_IDEAS.Fluid.HeatExchangers.Examples.EmbeddedPipeDp -abortSlowSimulation -alarm=480 -s gbode -lv LOG_STATS LOG_STDOUT | warning | Numerical Jacobians without coloring are currently not supported by GBODE. Colored numerical Jacobian will be used. LOG_STDOUT | info | | | | | Warning: | | | | ======== | | | | It is recommended that the volume flow rate versus pressure relation | | | | of the fan or pump satisfies the minimum decrease condition | | | | | | | | (per.pressure.dp[i+1]-per.pressure.dp[i]) | | | | d[i] = ------------------------------------------------- < -0 | | | | (per.pressure.V_flow[i+1]-per.pressure.V_flow[i]) | | | | | | | | is | | | | d[1]=0 | | | | | | | | Otherwise, a solution to the equations may not exist if the fan or pump speed is reduced. | | | | In this situation, the solver will fail due to non-convergence and | | | | the simulation stops. LOG_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/Fluid/Movers/BaseClasses/PartialFlowMachine.mo:348:3-357:39:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((pump.nominalValuesDefineDefaultPressureCurve)) --> "*** Warning: You are using a flow or pressure controlled mover with the | | | | default pressure curve. | | | | This leads to approximate calculations of the electrical power | | | | consumption. Add the correct pressure curve in the record per | | | | to obtain an accurate computation. | | | | Setting nominalValuesDefineDefaultPressureCurve=true will suppress this warning." LOG_SUCCESS | info | The initialization finished successfully without homotopy method. LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Blocks/Interfaces.mo:329:5-330:56:writable] | | | | The following assertion has been violated at time 5638.000000 | | | | ((pump.filter.y >= 0.0 and pump.filter.y <= 1e5)) --> "Variable violating min/max constraint: 0.0 <= pump.filter.y <= 1e5, has value: -5.58633e-13" LOG_STATS | info | gbode (single-rate integration): esdirk4 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.00900672s reading init.xml | | | | | | 0.000719349s reading info.xml | | | | | | 0.000159109s [ 0.5%] pre-initialization | | | | | | 0.000167784s [ 0.6%] initialization | | | | | | 1.037e-05s [ 0.0%] steps | | | | | | 0s [ 0.0%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 7.8152e-21s [ 0.0%] event-handling | | | | | | 0.00494014s [ 16.4%] overhead | | | | | | 0.0248423s [ 82.5%] simulation | | | | | | 0.0301198s [100.0%] total | | | | | events | | | | | | 2 state events | | | | | | 0 time events | | | | | solver: gbode | | | | | | 253 steps taken | | | | | | 6838 calls of functionODE | | | | | | 75 evaluations of jacobian | | | | | | 0 error test failures | | | | | | 0 convergence test failures | | | | | | 0s time of jacobian evaluation LOG_SUCCESS | info | The simulation finished successfully.