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111 lines
2.3 KiB

// kanban manufacturing example [CT96]
// dxp/gxn 3/2/00
ctmc
// number of tokens
const int t = 1;
// rates
const double in1 = 1.0;
const double out4 = 0.9;
const double synch123 = 0.4;
const double synch234 = 0.5;
const double back = 0.3;
const double redo1 = 0.36;
const double redo2 = 0.42;
const double redo3 = 0.39;
const double redo4 = 0.33;
const double ok1 = 0.84;
const double ok2 = 0.98;
const double ok3 = 0.91;
const double ok4 = 0.77;
module k1
w1 : [0..t];
x1 : [0..t];
y1 : [0..t];
z1 : [0..t];
[in] (w1<t) & (x1<t) -> in1 : (w1'=w1+1) & (x1'=x1+1);
[] (x1>0) & (y1<t) -> redo1 : (x1'=x1-1) & (y1'=y1+1);
[] (x1>0) & (z1<t) -> ok1 : (x1'=x1-1) & (z1'=z1+1);
[] (y1>0) & (x1<t) -> back : (y1'=y1-1) & (x1'=x1+1);
[s1] (z1>0) & (w1>0) -> synch123 : (z1'=z1-1) & (w1'=w1-1);
endmodule
module k2
w2 : [0..t];
x2 : [0..t];
y2 : [0..t];
z2 : [0..t];
[s1] (w2<t) & (x2<t) -> 1 : (w2'=w2+1) & (x2'=x2+1);
[] (x2>0) & (y2<t) -> redo2 : (x2'=x2-1) & (y2'=y2+1);
[] (x2>0) & (z2<t) -> ok2 : (x2'=x2-1) & (z2'=z2+1);
[] (y2>0) & (x2<t) -> back : (y2'=y2-1) & (x2'=x2+1);
[s2] (z2>0) & (w2>0) -> 1 : (z2'=z2-1) & (w2'=w2-1);
endmodule
module k3
w3 : [0..t];
x3 : [0..t];
y3 : [0..t];
z3 : [0..t];
[s1] (w3<t) & (x3<t) -> 1 : (w3'=w3+1) & (x3'=x3+1);
[] (x3>0) & (y3<t) -> redo3 : (x3'=x3-1) & (y3'=y3+1);
[] (x3>0) & (z3<t) -> ok3 : (x3'=x3-1) & (z3'=z3+1);
[] (y3>0) & (x3<t) -> back : (y3'=y3-1) & (x3'=x3+1);
[s2] (z3>0) & (w3>0) -> 1 : (z3'=z3-1) & (w3'=w3-1);
endmodule
module k4
w4 : [0..t];
x4 : [0..t];
y4 : [0..t];
z4 : [0..t];
[s2] (w4<t) & (x4<t) -> synch234 : (w4'=w4+1) & (x4'=x4+1);
[] (x4>0) & (y4<t) -> redo4 : (x4'=x4-1) & (y4'=y4+1);
[] (x4>0) & (z4<t) -> ok4 : (x4'=x4-1) & (z4'=z4+1);
[] (y4>0) & (x4<t) -> back : (y4'=y4-1) & (x4'=x4+1);
[] (z4>0) & (w4>0) -> out4 : (z4'=z4-1) & (w4'=w4-1);
endmodule
// reward structures
// tokens in cell1
rewards "tokens_cell1"
true : x1+y1+z1;
endrewards
// tokens in cell2
rewards "tokens_cell2"
true : x2+y2+z2;
endrewards
// tokens in cell3
rewards "tokens_cell3"
true : x3+y3+z3;
endrewards
// tokens in cell4
rewards "tokens_cell4"
true : x4+y4+z4;
endrewards
// throughput of the system
rewards "throughput"
[in] true : 1;
endrewards