What is the meaning of parameters in log ?
Answered
I just set the Method to 1, and change variable bounds and resolve it several times. And I found in the log:
```
Gurobi Optimizer version 12.0.2 build v12.0.2rc0 (linux64 - "Ubuntu 22.04.4 LTS")
CPU model: Intel(R) Xeon(R) Gold 5218R CPU @ 2.10GHz, instruction set [SSE2|AVX|AVX2|AVX512]
Thread count: 20 physical cores, 40 logical processors, using up to 20 threads
Non-default parameters:
Method 1
Optimize a model with 22151 rows, 1687826 columns and 3408842 nonzeros
Model fingerprint: 0x2c7746e5
Coefficient statistics:
Matrix range [1e+00, 2e+01]
Objective range [1e-02, 1e+03]
Bounds range [1e+00, 2e+01]
RHS range [1e+00, 1e+00]
Presolve removed 66 rows and 66 columns
Presolve time: 2.08s
Presolved: 22085 rows, 1687760 columns, 3409106 nonzeros
Iteration Objective Primal Inf. Dual Inf. Time
0 0.0000000e+00 1.695076e+00 0.000000e+00 3s
349 2.0002850e+04 0.000000e+00 0.000000e+00 3s
Use crossover to convert LP symmetric solution to basic solution...
Crossover log...
0 DPushes remaining with DInf 0.0000000e+00 4s
90646 PPushes remaining with PInf 0.0000000e+00 4s
43385 PPushes remaining with PInf 0.0000000e+00 5s
0 PPushes remaining with PInf 0.0000000e+00 9s
Push phase complete: Pinf 0.0000000e+00, Dinf 4.1079589e+06 9s
Iteration Objective Primal Inf. Dual Inf. Time
96402 2.0002850e+04 0.000000e+00 4.107959e+06 9s
96403 2.0002850e+04 0.000000e+00 0.000000e+00 9s
Solved in 96403 iterations and 9.16 seconds (6.63 work units)
Optimal objective 2.000285000e+04
```
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Gurobi Staff
Hi, We will open a ticket for you to discuss further. Please keep an eye on your emails and we will be in touch shortly.
Regards, Hamideh
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