solvers/conopt/conopttest.a4c

REQUIRE "atoms.a4l";

(*
	This example model comes from the CONOPT documentation, which is
	distributed with CONOPT.
*)
MODEL conopttest;
	Profit, Inp, Out IS_A solver_var;
	P, L IS_A solver_var;

	K IS_A real_constant;
	Al, Ak, Ainp, Rho IS_A solver_var;
	Pinp, P0, D IS_A real_constant;
	W, L0, K0 IS_A real_constant;

	cesfn: Out = ( Al*L^(-Rho) + Ak*K^(-Rho) + Ainp*Inp^(-Rho) )^(-1/Rho);

	demandfn: Out = ( P0 - P ) / D;

	W :== 1.0;
	L0 :== 0.1;
	Pinp :== 1.0;

	K0 :== 4.0;
	P0 :== 2.0;
	D :== 0.5;
	K :== K0;

	profitfn: Profit = P*Out - (L-L0)*W - Inp*Pinp;
	maxprofit: MAXIMIZE Profit;

METHODS

METHOD default_self;
	L := 0.5;
	Inp := 0.5;
END default_self;

METHOD specify;
	FIX Al, Ak, Ainp, Rho;
END specify;

METHOD values;
	Al := 0.16;
	Ak := 2.00;
	Ainp := 0.16;
	Rho := 1.0;

	L.lower_bound := L0;
	P.lower_bound := 0;
	Out.lower_bound := 0;
	Inp.lower_bound := -0.001;
END values;

METHOD on_load;
	RUN default_self;
	RUN specify;
	RUN values;
END on_load;

METHOD self_test;
	ASSERT abs(L - 0.295686) < 0.000001;
	ASSERT abs(Inp - 0.295686) < 0.000001;
	ASSERT abs(Out - 0.632019) < 0.000001;
	ASSERT abs(P - 1.683990) < 0.000001;	
END self_test;

END conopttest;
1	johnpye	786	REQUIRE "atoms.a4l";
2
3	jpye	1345	(*
4			This example model comes from the CONOPT documentation, which is
5			distributed with CONOPT.
6			*)
7	jpye	1491	MODEL conopttest;
8	johnpye	786	Profit, Inp, Out IS_A solver_var;
9	johnpye	788	P, L IS_A solver_var;
10	johnpye	786
11	johnpye	788	K IS_A real_constant;
12	johnpye	791	Al, Ak, Ainp, Rho IS_A solver_var;
13	johnpye	786	Pinp, P0, D IS_A real_constant;
14			W, L0, K0 IS_A real_constant;
15
16	johnpye	788	cesfn: Out = ( AlL^(-Rho) + AkK^(-Rho) + Ainp*Inp^(-Rho) )^(-1/Rho);
17	johnpye	786
18	johnpye	788	demandfn: Out = ( P0 - P ) / D;
19	johnpye	786
20			W :== 1.0;
21			L0 :== 0.1;
22			Pinp :== 1.0;
23	johnpye	791
24	johnpye	786	K0 :== 4.0;
25			P0 :== 2.0;
26			D :== 0.5;
27	johnpye	788	K :== K0;
28	johnpye	786
29	johnpye	788	profitfn: Profit = POut - (L-L0)W - Inp*Pinp;
30			maxprofit: MAXIMIZE Profit;
31	johnpye	786
32			METHODS
33
34			METHOD default_self;
35	johnpye	789	L := 0.5;
36			Inp := 0.5;
37	johnpye	786	END default_self;
38
39			METHOD specify;
40	johnpye	791	FIX Al, Ak, Ainp, Rho;
41	johnpye	786	END specify;
42
43			METHOD values;
44	johnpye	791	Al := 0.16;
45			Ak := 2.00;
46			Ainp := 0.16;
47			Rho := 1.0;
48
49	johnpye	788	L.lower_bound := L0;
50			P.lower_bound := 0;
51			Out.lower_bound := 0;
52	johnpye	789	Inp.lower_bound := -0.001;
53	johnpye	786	END values;
54
55			METHOD on_load;
56			RUN default_self;
57			RUN specify;
58			RUN values;
59			END on_load;
60
61			METHOD self_test;
62	johnpye	788	ASSERT abs(L - 0.295686) < 0.000001;
63			ASSERT abs(Inp - 0.295686) < 0.000001;
64			ASSERT abs(Out - 0.632019) < 0.000001;
65			ASSERT abs(P - 1.683990) < 0.000001;
66	johnpye	786	END self_test;
67
68	jpye	1491	END conopttest;