Create Standard Reports is not checked in the Report page of the Model Settings Notebook.Chapter 11 - Standard Reports
GPSS World provides for extensive statistics reporting that often gets you the results you need with no additional effort. The final states of all traditional GPSS Entities are reported in a Standard Report that is created automatically when each simulation terminates.
If you have additional reporting needs, you should consult the discussion of Data Streams in Chapter 4.
11.1. Report Management
Normally, GPSS World creates a detailed Standard Report of each simulation. Each Report Object is automatically created unless you specify NP as operand B of the START Command. You can also suppress the creation of Standard Reports using Settings. To do so, be sure
The REPORT and START Commands are discussed in Chapter 6.
\You can cause a Report Object to be opened for each newly created Standard Report. To do so, check
Create Standard Reports and In Windows in the Report page of the Model Settings Notebook.You can select the contents of a model’s Standard Reports using a set of checkboxes in the Report page of the Model Settings Notebook. This is opened when you select
Edit / Settings from the Main Menu. This is discussed in Chapter 2.Report Windows have full text editing, font, color, and printing capabilities. This is discussed in Chapter 2, under the section entitled, Text Windows.
The Model File that follows was used to generate the sample report output in the next section. When this Model File, named SAMPLE9.GPS, is Translated and run, it produces the automatic report named SAMPLE9.001. The model’s only purpose is to display all the various graphics and text windows in the Tutorial Manual in Chapter 1, Lesson 11 and to demonstrate the layout of the report and meanings of the various parts of the report in this chapter.
; GPSS World Sample File - SAMPLE9.GPS Model to demo graphics windows
Pool STORAGE 400 ;Define Storage
Matrix1 MATRIX ,5,5 ;Define Matrix
Transit TABLE M1,200,200,20 ;Transit time in wait ; and process
GENERATE (Exponential(1,0,100))
JOIN Maingrp
;Xact joins grp called ; Maingrp
JOIN Numgrp,9999
;Add 9999 to Numeric
SAVEVALUE Addup+,1
;Total of Transactions
ASSIGN Param_1,232
;Assign Xact parameter
JOIN Numgrp,P$Param_1 ;Put value in Param1
LOGIC S Switch_1
;Turn on a logic switch
MSAVEVALUE Matrix1,2,2,QA$Tot_Process
QUEUE Tot_Process
;Queue for process time
SEIZE Facility1
;Own first Facility
LINK Chain1,FIFO,Nxtblk ;Put on Userchain if
busy
Nxtblk SEIZE Facility2 ;Own a second Facility
SEIZE Facility3
;Own a third Facility
QUEUE Process_Time
;Keep track of process
ADVANCE 100,(Exponential(1,0,100))
DEPART Process_Time ;Record length
TABULATE Transit
;Add wait + process
RELEASE Facility1
;Give up 1st Facility
ADVANCE 20
;Delay time for Fac 2&3
RELEASE Facility2
;Give up 2nd Facility
ADVANCE 10
;Extra delay time-Fac 3
RELEASE Facility3
;Give up 3rd Facility
DEPART Tot_Process
;Leave Queue
UNLINK Chain1,Nxtblk ;Take
off waiting Xacts
ENTER Pool,100
;Place 100 units in the Storage
LOGIC R Switch_1
;Turn off logic switch
LEAVE Pool,50
;Take 50 units from Storage
SAVEVALUE Collect-,1
;Show negative Savevalue
REMOVE Maingrp
;Remove Xact from group
ADVANCE 50,1
;Wait 50(+/-1) time units
LEAVE Pool,50
;Take 50 units from Storage
Finis TERMINATE 1
;Destroy Xact
This section contains a standard report generated by the program listed in Section 11.2.1. Each item is explained individually in Section 11.3.
Let’s now examine the items included in a standard GPSS World Report. This section includes the complete report resulting from the simulation in Section 11.2.1. The individual items are considered separately in Section 11.3.
GPSS World Simulation Report - SAMPLE9.1.1
Tuesday June 6, 2000 14:00:59
START TIME END TIME BLOCKS
FACILITIES STORAGES
0.000 5187.692
32 3
1
NAME
VALUE
ADDUP
10007.000
CHAIN1
10012.000
COLLECT
10017.000
FACILITY1
10011.000
FACILITY2
10014.000
FACILITY3
10015.000
FINIS
32.000
MAINGRP
10005.000
MATRIX1
10003.000
NUMGRP
10006.000
NXTBLK
12.000
PARAM_1
10008.000
POOL
10002.000
PROCESS_TIME
10016.000
SWITCH_1
10009.000
TOT_PROCESS
10010.000
TRANSIT
10004.000
LABEL LOC BLOCK TYPE ENTRY COUNT CURRENT COUNT
RETRY
1 GENERATE
61
1 0
2 JOIN
60
0 0
3 JOIN
60
0 0
4 SAVEVALUE
60
0 0
5 ASSIGN
60
0 0
6 JOIN
60
0 0
7 LOGIC
60
0 0
8 MSAVEVALUE
60
0 0
9 QUEUE
60
9 0
10 SEIZE
51
0 0
11 LINK
51
0 0
NXTBLK 12 SEIZE
51
0 0
13 SEIZE
51
0 0
14 QUEUE
51
0 0
15 ADVANCE
51
1 0
16 DEPART
50
0 0
17 TABULATE
50
0 0
18 RELEASE
50
0 0
19 ADVANCE
50
0 0
20 RELEASE
50
0 0
21 ADVANCE
50
0 0
22 RELEASE
50
0 0
23 DEPART
50
0 0
24 UNLINK
50
0 0
25 ENTER
50
0 0
26 LOGIC
50
0 0
27 LEAVE
50
0 0
28 SAVEVALUE
50
0 0
29 REMOVE
50
0 0
30 ADVANCE
50
0 0
31 LEAVE
50
0 0
FINIS 32 TERMINATE
50
0 0
FACILITY ENTRIES UTIL. AVE. TIME AVAIL. OWNER PEND INTER RETRY DELAY
FACILITY1 51 0.937 95.278
1 51 0 0
0 9
FACILITY2 51 0.853 86.719
1 51 0 0
0 0
FACILITY3 51 0.949 96.523
1 51 0 0
0 0
QUEUE MAX CONT. ENTRY ENTRY(0) AVE.CONT. AVE.TIME AVE.(-0) RETRY
TOT_PROCESS 11 10 60 0
6.439 556.700 556.700 0
PROCESS_TIME 1 1 51 0
0.660 67.112 67.112 0
STORAGE CAP. REM. MIN. MAX. ENTRIES AVL. AVE.C. UTIL. RETRY DELAY
POOL 400 400 0 150
5000 1 23.628 0.059 0
0
TABLE MEAN
STD.DEV. RANGE RETRY FREQUENCY CUM.%
TRANSIT 553.184 307.992
0- 200.000 8 16.00
200.000 - 400.000 10 36.00
400.000 - 600.000 7 50.00
600.000 - 800.000 12 74.00
800.000 - 1000.000 11 96.00
1000.000 - 1200.000 2 100.00
USER CHAIN SIZE RETRY
AVE.CONT ENTRIES MAX AVE.TIME
CHAIN1 0
0 0.277
48 1 29.927
XACT GROUP GROUP SIZE
RETRY
MAINGRP 10 0
NUMERIC GROUP GROUP SIZE
RETRY
NUMGRP 2
0
LOGICSWITCH VALUE RETRY
SWITCH_1 1 0
SAVEVALUE RETRY VALUE
ADDUP 0 60.000
COLLECT 0 -50.000
MATRIX RETRY INDICES NUMERIC VALUE
MATRIX1 0
Intermediate Values are Zero.
(2,2) 6.413
Intermediate Values are Zero.
CEC XN PRI M1 ASSEM CURRENT NEXT PARAMETER VALUE
61 0 5187.692 61 1
2
FEC XN PRI BDT ASSEM CURRENT NEXT PARAMETER VALUE
51 0 5389.554 51 15
16
PARAM_1 232.000
62 0 5523.253 62 0
1
This section explains the items in the standard GPSS World report.
Title
GPSS World Simulation Report - SAMPLE9.1.1
Tuesday June 6, 2000 14:00:59
The title line of the standard report is taken from the name of the Model File that produced the report. The Date and Time of the running of the model is also included.
General Information
START TIME END TIME BLOCKS FACILITIES STORAGES
0.000 5187.692 32 3 1·
START TIME. The absolute system clock at the beginning of the measurement period. Utilizations and space-time products are based on the START TIME. The START TIME is set equal to the absolute system clock by a RESET or CLEAR statement.·
END TIME. The absolute clock time that the termination count became 0.·
BLOCKS. The number of Block entities in the simulation at the end of the simulation.·
FACILITIES. The number of Facility entities in the simulation at the end of the simulation.·
STORAGES. The number of Storage entities in the simulation at the end of the simulation.
Names
NAME VALUE
ADDUP 10007.000
CHAIN1 10012.000
COLLECT 10017.000
FACILITY1 10011.000
·
NAME. User assigned names used in your GPSS World model since the last Translation.·
VALUE. The numeric value assigned to the name. System assigned numbers start at 10000.
Blocks
LABEL LOC BLOCK TYPE ENTRY COUNT CURRENT COUNT RETRY
1 GENERATE 61 1 0
2 JOIN 60 0 0
3 JOIN 60 0 0
4 SAVEVALUE 60 0 0
5 ASSIGN 60 0 0
·
LABEL. Alphanumeric name of this Block if given one.·
LOC. Numerical position of this Block in the model. "Location".·
BLOCK TYPE. The GPSS Block name.·
ENTRY COUNT. The number of Transactions to enter this Block since the last RESET or CLEAR statement or since the last Translation.·
CURRENT COUNT. The number of Transactions in this Block at the end of the simulation.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Block entity.
Facilities
FACILITY ENTRIES UTIL. AVE. TIME AVAIL. OWNER PEND INTER RETRY DELAY
FACILITY1 51 0.937 95.278 1 51 0 0 0 9
FACILITY2 51 0.853 86.719 1 51 0 0 0 0
FACILITY3 51 0.949 96.523 1 51 0 0 0 0· FACILITY. Name or number of the Facility entity.
·
ENTRIES. The number of times the Facility was seized or preempted since last RESET or CLEAR command or since the last Translation of the model.·
UTIL. The fraction of simulated time in the last measurement period that the Facility was owned. A measurement period begins with the Translation of a model or the issuing of a RESET or CLEAR command.·
AVE. TIME. The average time of ownership by individual Transactions during the measurement period. A measurement period begins with a Translation of the model, or when a RESET or CLEAR command is issued.·
AVAIL. The availability state of the Facility entity at the end of the simulation. 1 means available, 0 means unavailable.·
OWNER. The number of the Transaction which owns the Facility entity. 0 means the Facility is not owned.·
PEND. The number of Transactions waiting to preempt this Facility by entering "Interrupt Mode" PREEMPT blocks.·
INTER. The number of Transactions currently preempted at this Facility. The count of Transactions on the interrupt chain.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Facility entity.·
DELAY. The number of Transactions waiting to SEIZE the Facility. This chain also contains Transactions waiting to preempt the Facility in "Priority Mode" PREEMPT blocks.
Queues
QUEUE MAX CONT. ENTRY ENTRY(0) AVE.CONT. AVE.TIME AVE.(-0) RETRY
TOT_PROCESS 11 10 60 0 6.439 556.700 556.700 0
PROCESS_TIME 1 1 51 0 0.660 67.112 67.112 0
·
QUEUE. Name or number of the Queue entity.·
MAX. The maximum content of the Queue entity during the measurement period. A measurement period begins with the Translation of a model or the issuing of a RESET or CLEAR command.·
CONT. The current content of the Queue entity at the end of the simulation period.·
ENTRY. Entry count. The total count of Queue entries during the measurement period.·
ENTRY(0). "Zero entry" count. The total count of Queue entries with a 0 residence time.·
AVE.CONT. The time weighted average of the Queue entity content during the measurement period. The space-time product divided by the time duration of the measurement period.·
AVE.TIME. The average time per unit of Queue content utilized during the measurement period. The space-time product divided by the total entry count.·
AVE.(-0). The average time per unit of Queue content utilized during the measurement period, adjusted for "zero entries". The space-time product divided by (the total entry count less the zero entry count).·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Queue entity.
Storages
STORAGE CAP. REM. MIN. MAX. ENTRIES AVL. AVE.C. UTIL. RETRY DELAY
POOL 400 400 0 150 5000 1 23.628 0.059 0 0·
STORAGE. Name or number of the Storage entity.·
CAP. The Storage capacity of the Storage entity defined in the STORAGE statement.·
REM. The number of unused Storage units at the end of the simulation.·
MIN. The minimum number of Storage units in use during the measurement period. A measurement period begins with the Translation of a model or the issuing of a RESET or CLEAR command.·
MAX. The maximum number of Storage units in use during the measurement period.·
ENTRIES. The number of "entries" into the Storage entity during the measurement period. The total accumulation of operand B of ENTER statements.·
AVL. The availability state of the Storage entity at the end of the simulation. 1 means available, 0 means unavailable.·
AVE.C. The time weighted average of the Storage content during the measurement period. The space-time product divided by the time duration of the measurement period.·
UTIL. The fraction of the total space-time product of the Storage entity utilized during the measurement period.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Storage entity.·
DELAY. The number of Transactions waiting to enter ENTER blocks on behalf of this Storage entity.
Tables and Qtables
TABLE MEAN STD.DEV. RANGE RETRY FREQUENCY CUM.%
TRANSIT 553.184 307.992
0 - 200.000 8 16.00
200.000 - 400.000 10 36.00
400.000 - 600.000 7 50.00
600.000 - 800.000 12 74.00
800.000 - 1000.000 11 96.00
1000.000 - 1200.000 2 100.00·
TABLE. Name or number of the Table or Qtable entity.·
MEAN. The weighted arithmetic average of tabulated values.·
STD.DEV. The weighted sample standard deviation of tabulated values.S.D.= SQR( (SOS/(COUNT-1)) - (SUM
2/(COUNT)(COUNT-1)) )Where SOS is the accumulated sum-of-squares.
·
RANGE. The lower and upper limits of the frequency class being reported. Values of the Table argument which are greater than the lower limit and less than or equal to the upper limit cause this frequency class to be updated. The B operand of the TABULATE statement can be used to provide a weighting factor. Frequency classes with accumulations of 0 are not reported.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Table entity.·
FREQUENCY. The total weighted count of tabulated items to fall within this range. The total of all TABULATE B operands.·
CUM.% The cumulative frequency count expressed as percent of total count.
Userchains
USER CHAIN SIZE RETRY AVE.CONT ENTRIES MAX AVE.TIME
CHAIN1 0 0 0.277 48 1 29.927·
USER CHAIN. Name or number of the Userchain entity.·
SIZE. The number of Transactions on the User Chain at the end of the measurement period.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Userchain entity.· AVE.CONT. The time weighted average of the User Chain occupancy count during the measurement period. The space-time product divided by the time duration of the measurement period.
·
ENTRIES. The total number of Transactions placed on the User Chain during the measurement period.·
MAX. The maximum number of Transactions on the User Chain during the measurement period.·
AVE.TIME. The average time per Transaction on the User Chain during the measurement period. The space-time product divided by the total entry count.
Transaction Groups
XACT GROUP GROUP SIZE RETRY
MAINGRP 10 0·
XACT GROUP. Name or number of the Transaction Group entity.·
GROUP SIZE. The number of Transactions which are members of the group at the end of the simulation.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Transaction Group entity.
Numeric Groups
NUMERIC GROUP GROUP SIZE RETRY
NUMGRP 2 0
·
NUMERIC GROUP. Name or number of the Numeric Group entity.·
GROUP SIZE. The number of numeric values which are members of the group at the end of the simulation.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Numeric Group entity.
Logicswitches
LOGICSWITCH VALUE RETRY
SWITCH_1 1 0
· LOGICSWITCH. Name or number of the Logicswitch entity.·
VALUE. The value of the Logicswitch entity at the end of the simulation. 1 denotes "set" or "true", 0 denotes "reset" or "false".·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Logicswitch entity.
Savevalues
SAVEVALUE RETRY VALUE
ADDUP 0 60.000
COLLECT 0 -50.000·
SAVEVALUE. Name or number of the Savevalue entity.·
VALUE. The value of the Savevalue entity at the end of the simulation.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Savevalue entity.
Matrix Entities
MATRIX RETRY INDICES NUMERIC VALUE
MATRIX1 0
Intermediate Values are Zero.
(2,2) 6.413
Intermediate Values are Zero.·
MATRIX. Name or number of the Matrix entity.·
RETRY. The number of Transactions waiting for a specific condition depending on the state of this Matrix entity.·
INDICES. Up to 6 integers that specify the element of the Matrix.·
NUMERIC VALUE. The value of this Matrix entity element at the end of the simulation. Elements with 0 values are reported in groups.
The Current Events Chain
CEC XN PRI M1 ASSEM CURRENT NEXT PARAMETER VALUE
61 0 5187.692 61 1 2XN. Transaction number of each Transaction on the Current Events Chain
··
PRI. Scheduling priority of the Transaction.·
M1. Mark time. The time the Transaction, or its earliest ancestor, was GENERATEd, or the time the Transaction entered a MARK Block with no operands.·
ASSEM. The Assembly Set number of the Transaction.·
CURRENT. The number of the Block where the Transaction existed at the end of the simulation or at the time of this report.·
NEXT. The number of the next Block scheduled to be entered by the Transaction.·
PARAMETER. The names or numbers of parameters of the Transaction.·
VALUE. The value of the parameter.
The Future Events Chain
FEC XN PRI BDT ASSEM CURRENT NEXT PARAMETER VALUE
51 0 5389.554 51 15 16
PARAM_1 232.000
62 0 5523.253 62 0 1
·
XN. Transaction number of each Transaction on the Future Events Chain.·
PRI. Scheduling priority of the Transaction.·
BDT. Block departure time. The time of the absolute system clock when the Transaction is scheduled to leave the Future Events Chain.·
ASSEM. The Assembly Set number of the Transaction.·
CURRENT. The number of the Block where the Transaction existed at the end of the simulation or at the time of this report.·
NEXT. The number of the next Block scheduled to be entered by the Transaction.·
PARAMETER. The names or numbers of parameters of the Transaction.·
VALUE. The value of the parameter.