Schrittfolge zur Simulation der Aufgabe Lagerhaltung 1

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1 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 1 1. Schritt: Definition der benötigten Klassen mit ihren Attributen (ohne Methoden) und der Pointer für Objekte dieser Klassen ***************************************************************************** Warehouse ***************************************************************************** Global_variables... Class Definitions... int produced; number of produced units int capacity_r, R capacity_r, r current; current content int total_taken, total number of taken units total number of not delievered uinits

2 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 2 2. Schritt: Erzeugen der Objekte in der und Definition der Länge des Simulationslaufes ***************************************************************************** Warehouse ***************************************************************************** Global_variables... Class Definitions... int produced; number of produced units int capacity_r, R capacity_r, r current; current content int total_taken, total number of taken units total number of not delievered uinits /* Creation of needed objects */ production = new cl_production; WH = new cl_wh; customer = new cl_customer; /* Simulation control */ advance 60*24*100;

3 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 3 3. Schritt: Bereitstellen von Zufallszahlengeneratoren und theoretischen Verteilungsfunktionen ***************************************************************************** Warehouse ***************************************************************************** Import from other modules import <stats> Global_variables... rn_stream rd_production, rd_customer; random number streams Class Definitions... int produced; number of produced units int capacity_r, R capacity_r, r current; current content int total_taken, total number of taken units total number of not delievered uinits /* Creation of needed objects */ production = new cl_production; WH = new cl_wh; customer = new cl_customer; /* Simulation control */ advance 60*24*100;

4 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 4 4. Schritt: Definition der initial-property für die Klasse cl_wh ***************************************************************************** Warehouse ***************************************************************************** Import from other modules import <stats> Global_variables... rn_stream rd_production, rd_customer; random number streams Class Definitions... int produced; number of produced units int capacity_r, R capacity_r, r current; current content initial capacity_r = 500; capacity_r = 150; int total_taken, total number of taken units total number of not delievered uinits /* Creation of needed objects */ production = new cl_production; WH = new cl_wh; customer = new cl_customer;

5 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 5 /* Simulation control */ advance 60*24*100;

6 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 6 5. Schritt: Definition der actions-property für die Klasse cl_production und Aktivierung des entsprechenden Prozesses Beachte, das Attribut current der Klasse cl_wh erhält den Präfix control, damit das waituntil-statement in der actions-property geschrieben werden kann. ***************************************************************************** Warehouse ***************************************************************************** Import from other modules import <stats> Global_variables... rn_stream rd_production, rd_customer; random number streams Class Definitions... int produced; number of produced units actions forever while ( WH->current < WH->capacity_R) Production Production time advance rv_uniform ( rd_production,10,20 ) ; WH->current =WH->current + 5; produced = produced + 5 ; Wait until production resumes wait until ( WH->current < WH->capacity_r); int capacity_r, R capacity_r; r control int current; current content initial

7 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 7 capacity_r = 500; capacity_r = 150; int total_taken, total number of taken units total number of not delievered uinits /* Creation of needed objects */ production = new cl_production; WH = new cl_wh; customer = new cl_customer; /* Activation of active objects */ activate production; /* Simulation control */ advance 60*24*100;

8 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 8 6. Schritt: Definition der actions-propoerty für die Klasse cl_customer und Aktivierung des entsprechenden Prozesses ***************************************************************************** Warehouse ***************************************************************************** Import from other modules import <stats> Global_variables... rn_stream rd_production, rd_customer; random number streams Class Definitions... int produced; number of produced units actions forever while ( WH->current < WH->capacity_R) Production Production time advance rv_uniform ( rd_production,10,20 ) ; WH->current =WH->current + 5; produced = produced + 5 ; Wait until production resumes wait until ( WH->current < WH->capacity_r); int capacity_r, R capacity_r; r control int current; current content initial capacity_r = 500;

9 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 9 capacity_r = 150; int total_taken, total number of taken units total number of not delivered uinits actions int current_losts; forever Wait for the next customer advance rv_uniform( rd_customer, 3*60, 7*60); order demand = rv_uniform ( rd_customer,50, 150 ); if ( demand <= WH->current) WH->current = WH->current - total_taken = total_taken + else current_losts = demand - WH->current; total_taken = total_taken + WH->current; WH->current = 0; losts = losts + current_losts; /* Creation of needed objects */ production = new cl_production; WH = new cl_wh; customer = new cl_customer; /* Activation of active objects */ activate production; activate customer; /* Simulation control */ advance 60*24*100;

10 Schrittfolge zur Simulation der Aufgabe Lagerhaltung Schritt: Resultatausgabe mit Definition von report-properties für die entsprechenden Klassen, Aufruf dieser Properties nach der Simulation und Definition von Plausibilitätskontrollen. ***************************************************************************** Warehouse ***************************************************************************** Import from other modules import <stats> Global_variables... rn_stream rd_production, rd_customer; random number streams Class Definitions... int produced; number of produced units actions forever while ( WH->current < WH->capacity_R) Production Production time advance rv_uniform ( rd_production,10,20 ) ; WH->current =WH->current + 5; produced = produced + 5 ; Wait until production resumes wait until ( WH->current < WH->capacity_r); report print options=bold "\n\nproducer\n"; print ( produced ) "Number of produced units : _ \n"; int capacity_r, R capacity_r; r

11 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 11 control int current; current content initial capacity_r = 500; capacity_r = 150; report print options=bold "\n\nwarehouse\n"; print ( capacity_r) "Capacity R : _ \n"; print ( capacity_r) "Capacity r : _ \n"; print ( current) "Current content : _ \n"; int total_taken, total number of taken units total number of not delivered uinits actions int current_losts; forever Wait for the next customer advance rv_uniform( rd_customer, 3*60, 7*60); order demand = rv_uniform ( rd_customer,50, 150 ); if ( demand <= WH->current) WH->current = WH->current - total_taken = total_taken + else current_losts = demand - WH->current; total_taken = total_taken + WH->current; WH->current = 0; losts = losts + current_losts; report print options=bold "\n\ncustomer\n"; print ( total_taken) "Total number of delivered units : _ \n"; print ( losts) "Total number of not delivered units : _ \n";

12 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 12 /* Creation of needed objects */ production = new cl_production; WH = new cl_wh; customer = new cl_customer; /* Activation of active objects */ activate production; activate customer; /* Simulation control */ advance 60*24*100; /* Results */ report system; report *production; report *WH; report *customer; print options=bold "\n\nchecks \n"; print "produced equal in Warehouse and delivered is "; if ( production->produced!= (WH->current + customer->total_taken) ) print options=bold " NOT "; print " OK \n"; System Status at Time Sample Initial Current Antithetic Chi-Square Random Stream Count Position Position Variates Uniformity rd_customer OFF 0.58 rd_production OFF 0.84 Producer Number of produced units : Warehouse Capacity R : 500 Capacity r : 150

13 Schrittfolge zur Simulation der Aufgabe Lagerhaltung 13 Current content : 351 Customer Total number of delivered units : Total number of not delivered units : 923 Checks produced equal in Warehouse and delivered is OK Execution complete Objects created: 14 passive, 3 active Pucks created: 4 Memory: 1,088,112 Time: 0.64 seconds