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From: | Noli Sicad |
Subject: | Re: [Help-glpk] MIP Solvers (i.e CBC, CPLEX, GLPK, GUROBI, LPSOLVE, SCIPC, SCIPL, SCIPS and XPRESS) Benchmark |
Date: | Mon, 19 Nov 2012 10:55:29 +1100 |
> > LPSOLVE can read and solve mathprog. For the sake of LPSolve. Here is the log / result of running "my hard to solve MIP model" (below). You can download the MIP model here. https://gist.github.com/4108017 Noli ~~~~~~~~~ Nolis-MacBook-Pro:Case_Studies nsicad$ lp_solve -mps TimberHarvestModel_0025p_mps.mps -Bw -stat Constraints: 463 Variables : 255 Integers : 249 Semi-cont : 0 SOS : 0 Non-zeros : 1181 density=1.000296% Absolute Ranges: Minima Maxima Matrix Coeficients: A(R0000095, C0000250) = 0.97500000 A(R0000094, C0000201) = 10218.57600001 A(R0000005, C0000001) = 1.00000000 A(R0000093, C0000200) = 10161.64800001 A(R0000100, C0000250) = 1.02500000 A(R0000092, C0000199) = 10095.23200000 A(R0000089, C0000178) = 143.75200000 A(R0000091, C0000198) = 10009.84000001 A(R0000090, C0000179) = 179.69000000 A(R0000090, C0000197) = 9933.93600001 Obj. Vector: c(C0000097) = 8.88888889 c(C0000196) = 31110.00000000 c(C0000098) = 65.18518519 c(C0000190) = 28650.00000000 c(C0000099) = 165.92592593 c(C0000001) = 28320.00000000 c(C0000039) = 1370.86419750 c(C0000232) = 27030.00000000 c(C0000027) = 1532.83950620 c(C0000013) = 26430.00000000 RHS Vector: b(R0000002) = 1.00000000 b(R0000002) = 1.00000000 Value of objective function: 0 Actual values of the variables: C0000001 0 C0000002 0 C0000003 0 C0000004 0 C0000005 0 C0000006 0 C0000007 0 C0000008 0 C0000009 0 C0000010 0 C0000011 0 C0000012 0 C0000013 0 C0000014 0 C0000015 0 C0000016 0 C0000017 0 . . . C0000239 0 C0000240 0 C0000241 0 C0000242 0 C0000243 0 C0000244 0 C0000245 0 C0000246 0 C0000247 0 C0000248 0 C0000249 0 C0000250 0 C0000251 0 C0000252 0 C0000253 0 C0000254 0 C0000255 0 Nolis-MacBook-Pro:Case_Studies nsicad$
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