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iSoron committed May 8, 2024
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123 changes: 63 additions & 60 deletions 0.4/_sources/tutorials/getting-started-gurobipy.ipynb.txt
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"In this tutorial, we will demonstrate how to use and install the Python/Gurobipy version of the package. The first step is to install Python 3.8+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
"\n",
"```\n",
"$ pip install MIPLearn==0.3\n",
"$ pip install MIPLearn==0.4\n",
"```\n",
"\n",
"In addition to MIPLearn itself, we will also install Gurobi 10.0, a state-of-the-art commercial MILP solver. This step also install a demo license for Gurobi, which should able to solve the small optimization problems in this tutorial. A license is required for solving larger-scale problems.\n",
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"name": "stdout",
"output_type": "stream",
"text": [
"Set parameter Threads to value 1\n",
"Restricted license - for non-production use only - expires 2024-10-28\n",
"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 1 threads\n",
"\n",
"Optimize a model with 7 rows, 6 columns and 15 nonzeros\n",
"Model fingerprint: 0x58dfdd53\n",
Expand All @@ -250,12 +251,14 @@
"* 0 0 0 1320.0000000 1320.00000 0.00% - 0s\n",
"\n",
"Explored 1 nodes (5 simplex iterations) in 0.01 seconds (0.00 work units)\n",
"Thread count was 20 (of 20 available processors)\n",
"Thread count was 1 (of 20 available processors)\n",
"\n",
"Solution count 2: 1320 1400 \n",
"\n",
"Optimal solution found (tolerance 1.00e-04)\n",
"Best objective 1.320000000000e+03, best bound 1.320000000000e+03, gap 0.0000%\n",
"\n",
"User-callback calls 371, time in user-callback 0.00 sec\n",
"obj = 1320.0\n",
"x = [-0.0, 1.0, 1.0]\n",
"y = [0.0, 60.0, 40.0]\n"
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"from miplearn.collectors.basic import BasicCollector\n",
"\n",
"bc = BasicCollector()\n",
"bc.collect(train_data, build_uc_model, n_jobs=4)"
"bc.collect(train_data, build_uc_model)"
]
},
{
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 1 threads\n",
"\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0xa8b70287\n",
Expand All @@ -493,22 +496,24 @@
" Bounds range [1e+00, 1e+00]\n",
" RHS range [3e+08, 3e+08]\n",
"Presolve removed 1000 rows and 500 columns\n",
"Presolve time: 0.01s\n",
"Presolve time: 0.00s\n",
"Presolved: 1 rows, 500 columns, 500 nonzeros\n",
"\n",
"Iteration Objective Primal Inf. Dual Inf. Time\n",
" 0 6.6166537e+09 5.648803e+04 0.000000e+00 0s\n",
" 1 8.2906219e+09 0.000000e+00 0.000000e+00 0s\n",
"\n",
"Solved in 1 iterations and 0.01 seconds (0.00 work units)\n",
"Solved in 1 iterations and 0.00 seconds (0.00 work units)\n",
"Optimal objective 8.290621916e+09\n",
"\n",
"User-callback calls 56, time in user-callback 0.00 sec\n",
"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 1 threads\n",
"\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0xcf27855a\n",
"Model fingerprint: 0x892e56b2\n",
"Variable types: 500 continuous, 500 integer (500 binary)\n",
"Coefficient statistics:\n",
" Matrix range [1e+00, 2e+06]\n",
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" Gomory: 1\n",
" Flow cover: 2\n",
"\n",
"Explored 1 nodes (565 simplex iterations) in 0.03 seconds (0.01 work units)\n",
"Thread count was 20 (of 20 available processors)\n",
"Explored 1 nodes (565 simplex iterations) in 0.02 seconds (0.01 work units)\n",
"Thread count was 1 (of 20 available processors)\n",
"\n",
"Solution count 1: 8.29153e+09 \n",
"\n",
"Optimal solution found (tolerance 1.00e-04)\n",
"Best objective 8.291528276179e+09, best bound 8.290733258025e+09, gap 0.0096%\n"
"Best objective 8.291528276179e+09, best bound 8.290733258025e+09, gap 0.0096%\n",
"\n",
"User-callback calls 193, time in user-callback 0.00 sec\n"
]
},
{
"data": {
"text/plain": [
"{'WS: Count': 1, 'WS: Number of variables set': 482.0}"
"{'WS: Count': 1, 'WS: Number of variables set': 477.0}"
]
},
"execution_count": 8,
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 1 threads\n",
"\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0xa8b70287\n",
Expand All @@ -611,10 +618,12 @@
"\n",
"Solved in 1 iterations and 0.01 seconds (0.00 work units)\n",
"Optimal objective 8.290621916e+09\n",
"\n",
"User-callback calls 56, time in user-callback 0.00 sec\n",
"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 1 threads\n",
"\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0x4cbbf7c7\n",
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" 0 0 8.2907e+09 0 5 8.2940e+09 8.2907e+09 0.04% - 0s\n",
" 0 0 8.2907e+09 0 1 8.2940e+09 8.2907e+09 0.04% - 0s\n",
" 0 0 8.2907e+09 0 2 8.2940e+09 8.2907e+09 0.04% - 0s\n",
" 0 0 8.2908e+09 0 1 8.2940e+09 8.2908e+09 0.04% - 0s\n",
" 0 0 8.2908e+09 0 4 8.2940e+09 8.2908e+09 0.04% - 0s\n",
" 0 0 8.2908e+09 0 4 8.2940e+09 8.2908e+09 0.04% - 0s\n",
"H 0 0 8.291465e+09 8.2908e+09 0.01% - 0s\n",
" 0 0 8.2907e+09 0 2 8.2940e+09 8.2907e+09 0.04% - 0s\n",
" 0 2 8.2908e+09 0 2 8.2940e+09 8.2908e+09 0.04% - 0s\n",
"H 9 9 8.292131e+09 8.2908e+09 0.02% 1.0 0s\n",
"H 132 88 8.292121e+09 8.2908e+09 0.02% 2.0 0s\n",
"* 133 88 28 8.292121e+09 8.2908e+09 0.02% 2.2 0s\n",
"H 216 136 8.291918e+09 8.2909e+09 0.01% 2.4 0s\n",
"* 232 136 28 8.291664e+09 8.2909e+09 0.01% 2.4 0s\n",
"\n",
"Cutting planes:\n",
" Gomory: 2\n",
" Cover: 1\n",
" MIR: 1\n",
" Inf proof: 3\n",
"\n",
"Explored 1 nodes (1031 simplex iterations) in 0.15 seconds (0.03 work units)\n",
"Thread count was 20 (of 20 available processors)\n",
"Explored 233 nodes (1577 simplex iterations) in 0.09 seconds (0.06 work units)\n",
"Thread count was 1 (of 20 available processors)\n",
"\n",
"Solution count 4: 8.29147e+09 8.29398e+09 8.29827e+09 9.75713e+09 \n",
"Solution count 7: 8.29166e+09 8.29192e+09 8.29212e+09 ... 9.75713e+09\n",
"\n",
"Optimal solution found (tolerance 1.00e-04)\n",
"Best objective 8.291465302389e+09, best bound 8.290781665333e+09, gap 0.0082%\n"
"Best objective 8.291663722826e+09, best bound 8.290885027548e+09, gap 0.0094%\n",
"\n",
"User-callback calls 708, time in user-callback 0.00 sec\n"
]
},
{
"data": {
"text/plain": [
"{}"
]
},
"execution_count": 9,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"solver_baseline = LearningSolver(components=[])\n",
"solver_baseline.fit(train_data)\n",
"solver_baseline.optimize(test_data[0], build_uc_model)"
"solver_baseline.optimize(test_data[0], build_uc_model);"
]
},
{
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"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 1 threads\n",
"\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0x19042f12\n",
Expand All @@ -735,28 +741,31 @@
"\n",
"Solved in 1 iterations and 0.01 seconds (0.00 work units)\n",
"Optimal objective 8.253596777e+09\n",
"\n",
"User-callback calls 56, time in user-callback 0.00 sec\n",
"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 20 threads\n",
"Thread count: 10 physical cores, 20 logical processors, using up to 1 threads\n",
"\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0xf97cde91\n",
"Model fingerprint: 0x6926c32f\n",
"Variable types: 500 continuous, 500 integer (500 binary)\n",
"Coefficient statistics:\n",
" Matrix range [1e+00, 2e+06]\n",
" Objective range [1e+00, 6e+07]\n",
" Bounds range [1e+00, 1e+00]\n",
" RHS range [3e+08, 3e+08]\n",
"\n",
"User MIP start produced solution with objective 8.25814e+09 (0.00s)\n",
"User MIP start produced solution with objective 8.25814e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25512e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25483e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25483e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25483e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25459e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25459e+09 (0.01s)\n",
"Loaded user MIP start with objective 8.25459e+09\n",
"User MIP start produced solution with objective 8.2551e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25508e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25508e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25499e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25448e+09 (0.02s)\n",
"User MIP start produced solution with objective 8.25448e+09 (0.02s)\n",
"Loaded user MIP start with objective 8.25448e+09\n",
"\n",
"Presolve time: 0.00s\n",
"Presolved: 1001 rows, 1000 columns, 2500 nonzeros\n",
Expand All @@ -767,29 +776,23 @@
" Nodes | Current Node | Objective Bounds | Work\n",
" Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time\n",
"\n",
" 0 0 8.2536e+09 0 1 8.2546e+09 8.2536e+09 0.01% - 0s\n",
" 0 0 8.2537e+09 0 3 8.2546e+09 8.2537e+09 0.01% - 0s\n",
" 0 0 8.2537e+09 0 1 8.2546e+09 8.2537e+09 0.01% - 0s\n",
" 0 0 8.2537e+09 0 4 8.2546e+09 8.2537e+09 0.01% - 0s\n",
" 0 0 8.2537e+09 0 4 8.2546e+09 8.2537e+09 0.01% - 0s\n",
" 0 0 8.2538e+09 0 4 8.2546e+09 8.2538e+09 0.01% - 0s\n",
" 0 0 8.2538e+09 0 5 8.2546e+09 8.2538e+09 0.01% - 0s\n",
" 0 0 8.2538e+09 0 6 8.2546e+09 8.2538e+09 0.01% - 0s\n",
" 0 0 8.2536e+09 0 1 8.2545e+09 8.2536e+09 0.01% - 0s\n",
" 0 0 8.2537e+09 0 3 8.2545e+09 8.2537e+09 0.01% - 0s\n",
"\n",
"Cutting planes:\n",
" Cover: 1\n",
" MIR: 2\n",
" StrongCG: 1\n",
" Flow cover: 1\n",
" Flow cover: 2\n",
"\n",
"Explored 1 nodes (575 simplex iterations) in 0.05 seconds (0.01 work units)\n",
"Thread count was 20 (of 20 available processors)\n",
"Explored 1 nodes (515 simplex iterations) in 0.03 seconds (0.02 work units)\n",
"Thread count was 1 (of 20 available processors)\n",
"\n",
"Solution count 4: 8.25459e+09 8.25483e+09 8.25512e+09 8.25814e+09 \n",
"Solution count 6: 8.25448e+09 8.25499e+09 8.25508e+09 ... 8.25814e+09\n",
"\n",
"Optimal solution found (tolerance 1.00e-04)\n",
"Best objective 8.254590409970e+09, best bound 8.253768093811e+09, gap 0.0100%\n",
"obj = 8254590409.969726\n",
"Best objective 8.254479145594e+09, best bound 8.253689731796e+09, gap 0.0096%\n",
"\n",
"User-callback calls 203, time in user-callback 0.00 sec\n",
"obj = 8254479145.594168\n",
"x = [1.0, 1.0, 0.0]\n",
"y = [935662.0949262811, 1604270.0218116897, 0.0]\n"
]
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2 changes: 1 addition & 1 deletion 0.4/searchindex.js
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