Environment - simulationEnvironment: startTime=0 stopTime=100 tolerance=1e-06 numberOfIntervals=2500 stepSize=0.04 Regular simulation: ./IDEAS_dev_IDEAS.Fluid.Actuators.Valves.Simplified.Examples.ThreeWayValveSwitch -abortSlowSimulation -alarm=480 -lv LOG_STATS WARNING: other : Warning: unrecognized command line options -abortSlowSimulation INFO : solver: SimManager: Start initialization 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] = ------------------------------------------------- < -0.000000 (per.pressure.V_flow[i+1]-per.pressure.V_flow[i]) is d[1]=0.000000 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. INFO : solver: SimManager: Start simulation at t = 0.000000 INFO : solver: SimManager: Simulation stop time: 100.000000 INFO : solver: Simulation info from solver: INFO : solver: DASSL: steps taken nst = 5407 INFO : solver: DASSL: residual evaluations nre = 5907 INFO : solver: DASSL: jacobian evaluations nje = 417 INFO : solver: DASSL: root evaluations nrt = 7008 INFO : solver: DASSL: error test failures netf = 114 INFO : solver: DASSL: nonlinear convergence failures ncfn = 0 INFO : solver: DASSL: nonlinear iterations nni = 5907 INFO : solver: DASSL: last evaluation time t = 100.009801 INFO : solver: DASSL: last step size h = 0.020000 INFO : solver: DASSL: last used order k = 5