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Showing content from https://www.gams.com/latest/docs/apis/examples_dotnet/Transport6_8cs_source.html below:

Transport6/Transport6.cs Source File

2using

System.Collections.Generic;

21 GAMSJob

t6 = ws.

AddJobFromString

(

"bmult="

+ b +

"; solve transport min z use lp; ms=transport.modelstat; ss=transport.solvestat;"

, cp);

26

Console.WriteLine(

"Scenario bmult="

+ b +

":"

);

32 static void

Main(

string

[] args)

35 if

(Environment.GetCommandLineArgs().Length > 1)

36

ws =

new GAMSWorkspace

(systemDirectory: Environment.GetCommandLineArgs()[1]);

44 double

[] bmultlist =

new double

[] { 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3 };

47

Object ioMutex =

new

Object();

48

System.Threading.Tasks.Parallel.ForEach(bmultlist, delegate(

double

b) { RunScenario(ws, cp, ioMutex, b); });

51 static

String GetModelText()

55 i canning plants / seattle, san-diego / 56 j markets / new-york, chicago, topeka / ; 60 a(i) capacity of plant i in cases 64 b(j) demand at market j in cases 69 Table d(i,j) distance in thousands of miles 70 new-york chicago topeka 72 san-diego 2.5 1.8 1.4 ; 74 Scalar f freight in dollars per case per thousand miles /90/ ; 75 Scalar bmult demand multiplier /1/; 77 Parameter c(i,j) transport cost in thousands of dollars per case ; 79 c(i,j) = f * d(i,j) / 1000 ; 82 x(i,j) shipment quantities in cases 83 z total transportation costs in thousands of dollars ; 88 cost define objective function 89 supply(i) observe supply limit at plant i 90 demand(j) satisfy demand at market j ; 92 cost .. z =e= sum((i,j), c(i,j)*x(i,j)) ; 94 supply(i) .. sum(j, x(i,j)) =l= a(i) ; 96 demand(j) .. sum(i, x(i,j)) =g= bmult*b(j) ; 98 Model transport /all/ ; 99 Scalar ms 'model status', ss 'solve status';

GAMSVariable GetVariable(string variableIdentifier)

GAMSParameter GetParameter(string parameterIdentifier)

void Run(GAMSOptions gamsOptions=null, GAMSCheckpoint checkpoint=null, TextWriter output=null, Boolean createOutDB=true)

new GAMSParameterRecord FindRecord(params string[] keys)

new GAMSVariableRecord FindRecord(params string[] keys)

GAMSJob AddJobFromString(string gamsSource, GAMSCheckpoint checkpoint=null, string jobName=null)

GAMSCheckpoint AddCheckpoint(string checkpointName=null)

This is the 6th model in a series of tutorial examples. Here we show: How to run multiple GAMSJobs in...

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