329 – Modelica.Fluid.Examples.HeatingSystem

            The model has the same number of unknowns and equations: 538
Check of <a href="Modelica://Modelica.Fluid.Examples.HeatingSystem">Modelica.Fluid.Examples.HeatingSystem</a> successful.


        

             = true
Translation of Modelica.Fluid.Examples.HeatingSystem:
The DAE has 538 scalar unknowns and 538 scalar equations.
 
Statistics
 
Original Model
  Number of components: 71
  Variables: 866
  Constants: 8 (8 scalars)
  Parameters: 364 (366 scalars)
  Unknowns: 494 (544 scalars)
  Differentiated variables: 21 scalars
  Equations: 414
  Nontrivial: 331
Translated Model
  Constants: 296 scalars
  Free parameters: 72 scalars
  Parameter depending: 105 scalars
  Outputs: 4 scalars
  Continuous time states: 10 scalars
  Time-varying variables: 166 scalars
  Alias variables: 279 scalars
  Number of mixed real/discrete systems of equations: 2
  Sizes of linear systems of equations: {7, 3, 3, 3, 3}
  Sizes after manipulation of the linear systems: {2, 2, 2, 2, 2}
  Sizes of nonlinear systems of equations: {13, 6, 7, 1}
  Sizes after manipulation of the nonlinear systems: {2, 1, 1, 1}
  Number of numerical Jacobians: 1
  Initialization problem
    Number of mixed real/discrete systems of equations: 1
    Sizes of linear systems of equations: {2, 2, 2, 2, 2, 2}
    Sizes after manipulation of the linear systems: {0, 0, 0, 0, 0, 0}
    Sizes of nonlinear systems of equations: {91, 1}
    Sizes after manipulation of the nonlinear systems: {14, 1}
    Number of numerical Jacobians: 1
 
Settings
Advanced.StoreProtectedVariables = true
Selected continuous time states
Statically selected continuous time states
  heater.mediums[1].p
  heater.mediums[1].T
  pipe.mediums[1].p
  pipe.mediums[1].T
  pipe.mediums[2].p
  pipe.mediums[2].T
  radiator.mediums[1].p
  radiator.mediums[1].T
  tank.level
  tank.medium.T
 
Warning: Some variables are iteration variables of the initialization problem:
but they are not given any explicit start values. Zero will be used.
Iteration variables:
der(tank.V)
        

            
heater.mediums[1].p
heater.mediums[1].T
pipe.mediums[1].p
pipe.mediums[1].T
pipe.mediums[2].p
pipe.mediums[2].T
radiator.mediums[1].p
radiator.mediums[1].T
tank.level
tank.medium.T
        

            
2
1
1
1
        

            Log-file of program ./dymosim
(generated: Tue May  5 02:13:04 2020)

dymosim started
... "dsin.txt" loading (dymosim input file)
... "HeatingSystem.mat" creating (simulation result file)

Integration started at T = 0 using integration method DASSL
(DAE multi-step solver (dassl/dasslrt of Petzold modified by Dassault Systemes))
Integration terminated successfully at T = 6000
   CPU-time for integration                : 0.608 seconds
   CPU-time for one grid interval          : 0.122 milliseconds
   CPU-time for initialization             : 0.011 seconds
   Number of result points                 : 5004
   Number of grid points                   : 5001
   Number of accepted steps                : 170
   Number of f-evaluations (dynamics)      : 323
   Number of crossing function evaluations : 5171
   Number of Jacobian-evaluations          : 54
   Number of model time events             : 1
   Number of input time events             : 0
   Number of state events                  : 0
   Number of step events                   : 0
   Minimum integration stepsize            : 4.57e-09
   Maximum integration stepsize            : 742
   Maximum integration order               : 5
Calling terminal section
... "dsfinal.txt" creating (final states)