mirror of
https://github.com/ANL-CEEESA/MIPLearn.git
synced 2025-12-10 11:28:51 -06:00
Make lazy constr component compatible with Pyomo+Gurobi
This commit is contained in:
@@ -108,11 +108,11 @@
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"execution_count": 1,
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"id": "f14e560c-ef9f-4c48-8467-72d6acce5f9f",
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"metadata": {
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"tags": [],
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"ExecuteTime": {
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"end_time": "2023-11-07T16:29:48.409419720Z",
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"start_time": "2023-11-07T16:29:47.824353556Z"
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}
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},
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"tags": []
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},
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"outputs": [
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{
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@@ -131,10 +131,10 @@
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"9 [ 8.57 22.77 17.06 16.25 4.14 4. 1.56 22.97 14.09 19.09] 100.79\n",
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"\n",
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"Restricted license - for non-production use only - expires 2024-10-28\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 20 rows, 110 columns and 210 nonzeros\n",
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"Model fingerprint: 0x1ff9913f\n",
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@@ -159,8 +159,8 @@
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"H 0 0 2.0000000 1.27484 36.3% - 0s\n",
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" 0 0 1.27484 0 4 2.00000 1.27484 36.3% - 0s\n",
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"\n",
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"Explored 1 nodes (38 simplex iterations) in 0.02 seconds (0.00 work units)\n",
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"Thread count was 12 (of 12 available processors)\n",
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"Explored 1 nodes (38 simplex iterations) in 0.01 seconds (0.00 work units)\n",
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"Thread count was 20 (of 20 available processors)\n",
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"\n",
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"Solution count 3: 2 4 5 \n",
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"\n",
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@@ -323,10 +323,10 @@
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"capacities\n",
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" [1310. 988. 1004. 1269. 1007.]\n",
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"\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 5 rows, 10 columns and 50 nonzeros\n",
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"Model fingerprint: 0xaf3ac15e\n",
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@@ -354,7 +354,7 @@
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" Cover: 1\n",
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"\n",
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"Explored 1 nodes (4 simplex iterations) in 0.01 seconds (0.00 work units)\n",
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"Thread count was 12 (of 12 available processors)\n",
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"Thread count was 20 (of 20 available processors)\n",
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"\n",
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"Solution count 2: -1279 -804 \n",
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"No other solutions better than -1279\n",
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@@ -498,10 +498,10 @@
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"demands = [6.12 1.39 2.92 3.66 4.56 7.85 2. 5.14 5.92 0.46]\n",
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"capacities = [151.89 42.63 16.26 237.22 241.41 202.1 76.15 24.42 171.06 110.04]\n",
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"\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 21 rows, 110 columns and 220 nonzeros\n",
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"Model fingerprint: 0x8d8d9346\n",
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@@ -535,8 +535,8 @@
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" 0 0 86.06884 0 15 93.92000 86.06884 8.36% - 0s\n",
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"* 0 0 0 91.2300000 91.23000 0.00% - 0s\n",
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"\n",
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"Explored 1 nodes (70 simplex iterations) in 0.02 seconds (0.00 work units)\n",
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"Thread count was 12 (of 12 available processors)\n",
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"Explored 1 nodes (70 simplex iterations) in 0.07 seconds (0.00 work units)\n",
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"Thread count was 20 (of 20 available processors)\n",
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"\n",
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"Solution count 10: 91.23 93.92 93.98 ... 368.79\n",
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"\n",
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@@ -670,10 +670,10 @@
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"costs [1044.58 850.13 1014.5 944.83 697.9 971.87 213.49 220.98 70.23\n",
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" 425.33]\n",
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"\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 5 rows, 10 columns and 28 nonzeros\n",
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"Model fingerprint: 0xe5c2d4fa\n",
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@@ -688,8 +688,8 @@
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"Presolve time: 0.00s\n",
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"Presolve: All rows and columns removed\n",
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"\n",
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"Explored 0 nodes (0 simplex iterations) in 0.01 seconds (0.00 work units)\n",
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"Thread count was 1 (of 12 available processors)\n",
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"Explored 0 nodes (0 simplex iterations) in 0.00 seconds (0.00 work units)\n",
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"Thread count was 1 (of 20 available processors)\n",
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"\n",
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"Solution count 1: 213.49 \n",
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"\n",
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@@ -786,10 +786,13 @@
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"execution_count": 5,
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"id": "cc797da7",
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"metadata": {
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"collapsed": false,
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"ExecuteTime": {
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"end_time": "2023-11-07T16:29:48.806917868Z",
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"start_time": "2023-11-07T16:29:48.781619530Z"
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},
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"collapsed": false,
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"jupyter": {
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"outputs_hidden": false
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}
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},
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"outputs": [
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@@ -806,10 +809,10 @@
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"costs [1044.58 850.13 1014.5 944.83 697.9 971.87 213.49 220.98 70.23\n",
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" 425.33]\n",
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"\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 5 rows, 10 columns and 28 nonzeros\n",
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"Model fingerprint: 0x4ee91388\n",
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@@ -824,8 +827,9 @@
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"Presolve time: 0.00s\n",
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"Presolve: All rows and columns removed\n",
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"\n",
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"Explored 0 nodes (0 simplex iterations) in 0.01 seconds (0.00 work units)\n",
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"Thread count was 1 (of 12 available processors)\n",
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"Explored 0 nodes (0 simplex iterations) in 0.00 seconds (0.00 work units)\n",
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"Thread count was 1 (of 20 available processors)\n",
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"\n",
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"Solution count 2: -1986.37 -1265.56 \n",
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"No other solutions better than -1986.37\n",
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"\n",
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@@ -930,10 +934,10 @@
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"weights[1] [ 2.06 96.99 83.24 21.23 18.18 18.34 30.42 52.48 43.19 29.12]\n",
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"\n",
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"Set parameter PreCrush to value 1\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 15 rows, 10 columns and 30 nonzeros\n",
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"Model fingerprint: 0x3240ea4a\n",
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@@ -957,7 +961,7 @@
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" 0 0 infeasible 0 -219.14000 -219.14000 0.00% - 0s\n",
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"\n",
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"Explored 1 nodes (5 simplex iterations) in 0.01 seconds (0.00 work units)\n",
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"Thread count was 12 (of 12 available processors)\n",
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"Thread count was 20 (of 20 available processors)\n",
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"\n",
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"Solution count 1: -219.14 \n",
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"No other solutions better than -219.14\n",
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@@ -965,7 +969,7 @@
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"Optimal solution found (tolerance 1.00e-04)\n",
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"Best objective -2.191400000000e+02, best bound -2.191400000000e+02, gap 0.0000%\n",
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"\n",
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"User-callback calls 300, time in user-callback 0.00 sec\n"
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"User-callback calls 299, time in user-callback 0.00 sec\n"
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]
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}
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],
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@@ -975,7 +979,7 @@
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"from scipy.stats import uniform, randint\n",
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"from miplearn.problems.stab import (\n",
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" MaxWeightStableSetGenerator,\n",
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" build_stab_model,\n",
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" build_stab_model_gurobipy,\n",
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")\n",
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"\n",
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"# Set random seed to make example reproducible\n",
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@@ -998,7 +1002,7 @@
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"print()\n",
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"\n",
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"# Load and optimize the first instance\n",
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"model = build_stab_model(data[0])\n",
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"model = build_stab_model_gurobipy(data[0])\n",
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"model.optimize()"
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]
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},
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@@ -1071,10 +1075,13 @@
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"execution_count": 7,
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"id": "9d0c56c6",
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"metadata": {
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"collapsed": false,
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"ExecuteTime": {
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"end_time": "2023-11-07T16:29:48.958833448Z",
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"start_time": "2023-11-07T16:29:48.898121017Z"
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},
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"collapsed": false,
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"jupyter": {
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"outputs_hidden": false
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}
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},
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"outputs": [
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@@ -1107,10 +1114,10 @@
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"\n",
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"Set parameter PreCrush to value 1\n",
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"Set parameter LazyConstraints to value 1\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 10 rows, 45 columns and 90 nonzeros\n",
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"Model fingerprint: 0x719675e5\n",
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@@ -1135,7 +1142,7 @@
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" Lazy constraints: 3\n",
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"\n",
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"Explored 1 nodes (17 simplex iterations) in 0.01 seconds (0.00 work units)\n",
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"Thread count was 12 (of 12 available processors)\n",
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"Thread count was 20 (of 20 available processors)\n",
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"\n",
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"Solution count 1: 2921 \n",
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"\n",
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@@ -1150,7 +1157,10 @@
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"import random\n",
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"import numpy as np\n",
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"from scipy.stats import uniform, randint\n",
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"from miplearn.problems.tsp import TravelingSalesmanGenerator, build_tsp_model\n",
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"from miplearn.problems.tsp import (\n",
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" TravelingSalesmanGenerator,\n",
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" build_tsp_model_gurobipy,\n",
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")\n",
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"\n",
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"# Set random seed to make example reproducible\n",
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"random.seed(42)\n",
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@@ -1173,7 +1183,7 @@
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"print()\n",
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"\n",
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"# Load and optimize the first instance\n",
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"model = build_tsp_model(data[0])\n",
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"model = build_tsp_model_gurobipy(data[0])\n",
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"model.optimize()"
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]
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},
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@@ -1283,10 +1293,13 @@
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"execution_count": 8,
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"id": "6217da7c",
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"metadata": {
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"collapsed": false,
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"ExecuteTime": {
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"end_time": "2023-11-07T16:29:49.061613905Z",
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"start_time": "2023-11-07T16:29:48.941857719Z"
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},
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"collapsed": false,
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"jupyter": {
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"outputs_hidden": false
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}
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},
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"outputs": [
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@@ -1320,10 +1333,10 @@
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" 828.28 775.18 834.99 959.76 865.72 1193.52 1058.92 985.19 893.92\n",
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" 962.16 781.88 723.15 639.04 602.4 787.02]\n",
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"\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 578 rows, 360 columns and 2128 nonzeros\n",
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"Model fingerprint: 0x4dc1c661\n",
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@@ -1361,8 +1374,8 @@
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" RLT: 1\n",
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" Relax-and-lift: 7\n",
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"\n",
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"Explored 1 nodes (234 simplex iterations) in 0.04 seconds (0.02 work units)\n",
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"Thread count was 12 (of 12 available processors)\n",
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"Explored 1 nodes (234 simplex iterations) in 0.03 seconds (0.02 work units)\n",
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"Thread count was 20 (of 20 available processors)\n",
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"\n",
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"Solution count 5: 364722 368600 374044 ... 440662\n",
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"\n",
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@@ -1487,10 +1500,10 @@
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"weights[0] [37.45 95.07 73.2 59.87 15.6 15.6 5.81 86.62 60.11 70.81]\n",
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"weights[1] [ 2.06 96.99 83.24 21.23 18.18 18.34 30.42 52.48 43.19 29.12]\n",
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"\n",
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"Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (linux64)\n",
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
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"\n",
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"CPU model: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 6 physical cores, 12 logical processors, using up to 12 threads\n",
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"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
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"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
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"\n",
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"Optimize a model with 15 rows, 10 columns and 30 nonzeros\n",
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"Model fingerprint: 0x2d2d1390\n",
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@@ -1514,7 +1527,7 @@
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" 0 0 infeasible 0 301.00000 301.00000 0.00% - 0s\n",
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"\n",
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"Explored 1 nodes (8 simplex iterations) in 0.01 seconds (0.00 work units)\n",
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"Thread count was 12 (of 12 available processors)\n",
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"Thread count was 20 (of 20 available processors)\n",
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"\n",
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"Solution count 1: 301 \n",
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"\n",
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@@ -1558,13 +1571,16 @@
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},
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{
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"cell_type": "code",
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"execution_count": 9,
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"execution_count": null,
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"id": "9f12e91f",
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"metadata": {
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"collapsed": false,
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"ExecuteTime": {
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"end_time": "2023-11-07T16:29:49.075852252Z",
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"start_time": "2023-11-07T16:29:49.050243601Z"
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},
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"collapsed": false,
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"jupyter": {
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"outputs_hidden": false
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}
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},
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"outputs": [],
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@@ -1587,7 +1603,7 @@
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.9.16"
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"version": "3.11.7"
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}
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},
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"nbformat": 4,
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Reference in New Issue
Block a user