ANL-CEEESA
/
MIPLearn
mirror of https://github.com/ANL-CEEESA/MIPLearn.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Docs: Use single-thread example

Browse Source
dev
Alinson S. Xavier 1 year ago
parent 0534d50af3
commit 52ed34784d
1 changed files with 62 additions and 59 deletions
Show Stats Download Patch File Download Diff File

121
docs/tutorials/getting-started-gurobipy.ipynb
Unescape View File

@ -220,11 +220,12 @@
"name": "stdout", "name": "stdout",
"output_type": "stream", "output_type": "stream",
"text": [ "text": [
"Set parameter Threads to value 1\n",
"Restricted license - for non-production use only - expires 2024-10-28\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", "Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n", "\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\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", "\n",
"Optimize a model with 7 rows, 6 columns and 15 nonzeros\n", "Optimize a model with 7 rows, 6 columns and 15 nonzeros\n",
"Model fingerprint: 0x58dfdd53\n", "Model fingerprint: 0x58dfdd53\n",
@ -250,12 +251,14 @@
"* 0 0 0 1320.0000000 1320.00000 0.00% - 0s\n", "* 0 0 0 1320.0000000 1320.00000 0.00% - 0s\n",
"\n", "\n",
"Explored 1 nodes (5 simplex iterations) in 0.01 seconds (0.00 work units)\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", "\n",
"Solution count 2: 1320 1400 \n", "Solution count 2: 1320 1400 \n",
"\n", "\n",
"Optimal solution found (tolerance 1.00e-04)\n", "Optimal solution found (tolerance 1.00e-04)\n",
"Best objective 1.320000000000e+03, best bound 1.320000000000e+03, gap 0.0000%\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", "obj = 1320.0\n",
"x = [-0.0, 1.0, 1.0]\n", "x = [-0.0, 1.0, 1.0]\n",
"y = [0.0, 60.0, 40.0]\n" "y = [0.0, 60.0, 40.0]\n"
@ -401,7 +404,7 @@
"from miplearn.collectors.basic import BasicCollector\n", "from miplearn.collectors.basic import BasicCollector\n",
"\n", "\n",
"bc = BasicCollector()\n", "bc = BasicCollector()\n",
"bc.collect(train_data, build_uc_model, n_jobs=4)" "bc.collect(train_data, build_uc_model)"
] ]
}, },
{ {
@ -483,7 +486,7 @@
"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n", "Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n", "\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\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", "\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n", "Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0xa8b70287\n", "Model fingerprint: 0xa8b70287\n",
@ -493,22 +496,24 @@
" Bounds range [1e+00, 1e+00]\n", " Bounds range [1e+00, 1e+00]\n",
" RHS range [3e+08, 3e+08]\n", " RHS range [3e+08, 3e+08]\n",
"Presolve removed 1000 rows and 500 columns\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", "Presolved: 1 rows, 500 columns, 500 nonzeros\n",
"\n", "\n",
"Iteration Objective Primal Inf. Dual Inf. Time\n", "Iteration Objective Primal Inf. Dual Inf. Time\n",
" 0 6.6166537e+09 5.648803e+04 0.000000e+00 0s\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", " 1 8.2906219e+09 0.000000e+00 0.000000e+00 0s\n",
"\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", "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", "Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n", "\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\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", "\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\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", "Variable types: 500 continuous, 500 integer (500 binary)\n",
"Coefficient statistics:\n", "Coefficient statistics:\n",
" Matrix range [1e+00, 2e+06]\n", " Matrix range [1e+00, 2e+06]\n",
@ -538,19 +543,21 @@
" Gomory: 1\n", " Gomory: 1\n",
" Flow cover: 2\n", " Flow cover: 2\n",
"\n", "\n",
"Explored 1 nodes (565 simplex iterations) in 0.03 seconds (0.01 work units)\n", "Explored 1 nodes (565 simplex iterations) in 0.02 seconds (0.01 work units)\n",
"Thread count was 20 (of 20 available processors)\n", "Thread count was 1 (of 20 available processors)\n",
"\n", "\n",
"Solution count 1: 8.29153e+09 \n", "Solution count 1: 8.29153e+09 \n",
"\n", "\n",
"Optimal solution found (tolerance 1.00e-04)\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": { "data": {
"text/plain": [ "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, "execution_count": 8,
@ -592,7 +599,7 @@
"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n", "Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n", "\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\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", "\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n", "Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0xa8b70287\n", "Model fingerprint: 0xa8b70287\n",
@ -611,10 +618,12 @@
"\n", "\n",
"Solved in 1 iterations and 0.01 seconds (0.00 work units)\n", "Solved in 1 iterations and 0.01 seconds (0.00 work units)\n",
"Optimal objective 8.290621916e+09\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", "Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n", "\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\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", "\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n", "Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0x4cbbf7c7\n", "Model fingerprint: 0x4cbbf7c7\n",
@ -643,39 +652,36 @@
" 0 0 8.2907e+09 0 5 8.2940e+09 8.2907e+09 0.04% - 0s\n", " 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 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 8.2907e+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 8.2907e+09 0 2 8.2940e+09 8.2907e+09 0.04% - 0s\n",
" 0 0 8.2908e+09 0 4 8.2940e+09 8.2908e+09 0.04% - 0s\n", " 0 2 8.2908e+09 0 2 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 9 9 8.292131e+09 8.2908e+09 0.02% 1.0 0s\n",
"H 0 0 8.291465e+09 8.2908e+09 0.01% - 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", "\n",
"Cutting planes:\n", "Cutting planes:\n",
" Gomory: 2\n", " Gomory: 2\n",
" Cover: 1\n",
" MIR: 1\n", " MIR: 1\n",
" Inf proof: 3\n",
"\n", "\n",
"Explored 1 nodes (1031 simplex iterations) in 0.15 seconds (0.03 work units)\n", "Explored 233 nodes (1577 simplex iterations) in 0.09 seconds (0.06 work units)\n",
"Thread count was 20 (of 20 available processors)\n", "Thread count was 1 (of 20 available processors)\n",
"\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", "\n",
"Optimal solution found (tolerance 1.00e-04)\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": [ "source": [
"solver_baseline = LearningSolver(components=[])\n", "solver_baseline = LearningSolver(components=[])\n",
"solver_baseline.fit(train_data)\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);"
] ]
}, },
{ {
@ -716,7 +722,7 @@
"Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n", "Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n", "\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\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", "\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n", "Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\n",
"Model fingerprint: 0x19042f12\n", "Model fingerprint: 0x19042f12\n",
@ -735,13 +741,15 @@
"\n", "\n",
"Solved in 1 iterations and 0.01 seconds (0.00 work units)\n", "Solved in 1 iterations and 0.01 seconds (0.00 work units)\n",
"Optimal objective 8.253596777e+09\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", "Gurobi Optimizer version 10.0.3 build v10.0.3rc0 (linux64)\n",
"\n", "\n",
"CPU model: 13th Gen Intel(R) Core(TM) i7-13800H, instruction set [SSE2|AVX|AVX2]\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", "\n",
"Optimize a model with 1001 rows, 1000 columns and 2500 nonzeros\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", "Variable types: 500 continuous, 500 integer (500 binary)\n",
"Coefficient statistics:\n", "Coefficient statistics:\n",
" Matrix range [1e+00, 2e+06]\n", " Matrix range [1e+00, 2e+06]\n",
@ -749,14 +757,15 @@
" Bounds range [1e+00, 1e+00]\n", " Bounds range [1e+00, 1e+00]\n",
" RHS range [3e+08, 3e+08]\n", " RHS range [3e+08, 3e+08]\n",
"\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 8.25512e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25483e+09 (0.01s)\n", "User MIP start produced solution with objective 8.2551e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25483e+09 (0.01s)\n", "User MIP start produced solution with objective 8.25508e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25483e+09 (0.01s)\n", "User MIP start produced solution with objective 8.25508e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25459e+09 (0.01s)\n", "User MIP start produced solution with objective 8.25499e+09 (0.01s)\n",
"User MIP start produced solution with objective 8.25459e+09 (0.01s)\n", "User MIP start produced solution with objective 8.25448e+09 (0.02s)\n",
"Loaded user MIP start with objective 8.25459e+09\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", "\n",
"Presolve time: 0.00s\n", "Presolve time: 0.00s\n",
"Presolved: 1001 rows, 1000 columns, 2500 nonzeros\n", "Presolved: 1001 rows, 1000 columns, 2500 nonzeros\n",
@ -767,29 +776,23 @@
" Nodes | Current Node | Objective Bounds | Work\n", " Nodes | Current Node | Objective Bounds | Work\n",
" Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time\n", " Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time\n",
"\n", "\n",
" 0 0 8.2536e+09 0 1 8.2546e+09 8.2536e+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 8.2546e+09 8.2537e+09 0.01% - 0s\n", " 0 0 8.2537e+09 0 3 8.2545e+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",
"\n", "\n",
"Cutting planes:\n", "Cutting planes:\n",
" Cover: 1\n", " Cover: 1\n",
" MIR: 2\n", " Flow cover: 2\n",
" StrongCG: 1\n",
" Flow cover: 1\n",
"\n", "\n",
"Explored 1 nodes (575 simplex iterations) in 0.05 seconds (0.01 work units)\n", "Explored 1 nodes (515 simplex iterations) in 0.03 seconds (0.02 work units)\n",
"Thread count was 20 (of 20 available processors)\n", "Thread count was 1 (of 20 available processors)\n",
"\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", "\n",
"Optimal solution found (tolerance 1.00e-04)\n", "Optimal solution found (tolerance 1.00e-04)\n",
"Best objective 8.254590409970e+09, best bound 8.253768093811e+09, gap 0.0100%\n", "Best objective 8.254479145594e+09, best bound 8.253689731796e+09, gap 0.0096%\n",
"obj = 8254590409.969726\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", "x = [1.0, 1.0, 0.0]\n",
"y = [935662.0949262811, 1604270.0218116897, 0.0]\n" "y = [935662.0949262811, 1604270.0218116897, 0.0]\n"
] ]

Write Preview
Loading…
Cancel
Save