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Gurobi Thread count mismatch

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Jan 18th, 2022
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  1.  
  2. Gurobi 9.1.2 (linux64, C++) logging started Tue Jan 18 09:29:34 2022
  3.  
  4. Gurobi Optimizer version 9.1.2 build v9.1.2rc0 (linux64)
  5. Thread count: 4 physical cores, 4 logical processors, using up to 2 threads
  6. Optimize a model with 4009 rows, 4179 columns and 16026 nonzeros
  7. Model fingerprint: 0xb7a658cf
  8. Model has 1265 general constraints
  9. Variable types: 2915 continuous, 1264 integer (1208 binary)
  10. Coefficient statistics:
  11. Matrix range [1e+00, 6e+05]
  12. Objective range [1e+00, 1e+00]
  13. Bounds range [1e+00, 1e+05]
  14. RHS range [2e+03, 6e+05]
  15.  
  16. ---------------------------------------------------------------------------
  17. Multi-objectives: starting optimization with 2 objectives ...
  18. ---------------------------------------------------------------------------
  19.  
  20. Multi-objectives: applying initial presolve ...
  21. ---------------------------------------------------------------------------
  22.  
  23. Presolve added 2357 rows and 4888 columns
  24. Presolve time: 0.14s
  25. Presolved: 6366 rows and 9067 columns
  26. ---------------------------------------------------------------------------
  27.  
  28. Multi-objectives: optimize objective 1 (min-disabled-flows) ...
  29. ---------------------------------------------------------------------------
  30.  
  31. Presolve removed 404 rows and 845 columns
  32. Presolve time: 0.14s
  33. Presolved: 5962 rows, 8222 columns, 25210 nonzeros
  34. Presolved model has 3297 SOS constraint(s)
  35. Variable types: 3403 continuous, 4819 integer (4467 binary)
  36.  
  37. Root relaxation: objective 0.000000e+00, 5125 iterations, 0.32 seconds
  38.  
  39. Nodes | Current Node | Objective Bounds | Work
  40. Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
  41.  
  42. 0 0 0.00000 0 925 - 0.00000 - - 1s
  43. 0 0 0.00000 0 1208 - 0.00000 - - 1s
  44. 0 0 0.00000 0 1068 - 0.00000 - - 1s
  45. 0 0 0.00000 0 910 - 0.00000 - - 1s
  46. 0 0 0.00000 0 910 - 0.00000 - - 1s
  47. 0 0 0.00000 0 883 - 0.00000 - - 1s
  48. 0 0 0.00000 0 979 - 0.00000 - - 2s
  49. 0 0 0.00000 0 927 - 0.00000 - - 2s
  50. H 0 0 46.0000000 0.00000 100% - 2s
  51. 0 0 0.00000 0 930 46.00000 0.00000 100% - 2s
  52. 0 0 0.00000 0 859 46.00000 0.00000 100% - 2s
  53. 0 0 0.00000 0 859 46.00000 0.00000 100% - 2s
  54. 0 0 0.00000 0 779 46.00000 0.00000 100% - 3s
  55. H 0 0 3.0000000 0.00000 100% - 3s
  56. 0 0 0.00000 0 1097 3.00000 0.00000 100% - 3s
  57. 0 0 0.00000 0 1077 3.00000 0.00000 100% - 3s
  58. 0 0 0.00000 0 834 3.00000 0.00000 100% - 4s
  59. 0 0 0.00000 0 1097 3.00000 0.00000 100% - 4s
  60. 0 0 0.00000 0 851 3.00000 0.00000 100% - 5s
  61. 0 0 0.00000 0 912 3.00000 0.00000 100% - 5s
  62. 0 0 0.00000 0 803 3.00000 0.00000 100% - 6s
  63. H 0 0 1.0000000 0.00000 100% - 6s
  64. 0 0 0.00000 0 865 1.00000 0.00000 100% - 6s
  65. 0 0 0.00000 0 886 1.00000 0.00000 100% - 7s
  66. 0 0 0.00000 0 754 1.00000 0.00000 100% - 7s
  67. 0 2 0.00000 0 754 1.00000 0.00000 100% - 8s
  68. 4 4 0.00000 0 106 1.00000 0.00000 100% 0.5 10s
  69. 11 9 0.00000 0 60 1.00000 0.00000 100% 0.2 17s
  70. 13 10 0.00000 0 99 1.00000 0.00000 100% 0.2 21s
  71. 18 19 0.00000 17 792 1.00000 0.00000 100% 3206 25s
  72. H 83 79 0.0000000 0.00000 0.00% 843 29s
  73.  
  74. Cutting planes:
  75. Cover: 25
  76. Implied bound: 218
  77. Clique: 95
  78. MIR: 12
  79. StrongCG: 2
  80. Flow cover: 204
  81. Zero half: 2
  82. RLT: 2
  83. Relax-and-lift: 82
  84.  
  85. Explored 93 nodes (97122 simplex iterations) in 29.41 seconds
  86. Thread count was 4 (of 4 available processors)
  87.  
  88. Solution count 5: 0 1 3 ... 46
  89.  
  90. Optimal solution found (tolerance 1.00e-04)
  91. Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0000%
  92. ---------------------------------------------------------------------------
  93.  
  94. Multi-objectives: optimize objective 2 (max-min-dist-on-li) ...
  95. ---------------------------------------------------------------------------
  96.  
  97.  
  98. Loaded user MIP start with objective -2.0412e+06
  99.  
  100. Presolve removed 2389 rows and 3324 columns
  101. Presolve time: 0.66s
  102. Presolved: 3978 rows, 5743 columns, 14408 nonzeros
  103. Presolved model has 3052 SOS constraint(s)
  104. Variable types: 3213 continuous, 2530 integer (2176 binary)
  105.  
  106. Root simplex log...
  107.  
  108. Iteration Objective Primal Inf. Dual Inf. Time
  109. 0 -5.0598000e+06 3.792365e+06 0.000000e+00 30s
  110. 1802 -4.5820000e+06 0.000000e+00 0.000000e+00 30s
  111.  
  112. Root relaxation: objective -4.582000e+06, 1802 iterations, 0.14 seconds
  113.  
  114. Nodes | Current Node | Objective Bounds | Work
  115. Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
  116.  
  117. 0 0 -4582000.0 0 1026 -2041200.0 -4582000.0 124% - 30s
  118. 0 0 -4463077.6 0 1387 -2041200.0 -4463077.6 119% - 31s
  119. 0 0 -4461850.5 0 1424 -2041200.0 -4461850.5 119% - 31s
  120. 0 0 -4461850.5 0 1398 -2041200.0 -4461850.5 119% - 31s
  121. 0 0 -4271669.9 0 1905 -2041200.0 -4271669.9 109% - 31s
  122. 0 0 -4252023.9 0 1816 -2041200.0 -4252023.9 108% - 31s
  123. 0 0 -4250655.7 0 1822 -2041200.0 -4250655.7 108% - 31s
  124. 0 0 -4250554.8 0 1822 -2041200.0 -4250554.8 108% - 31s
  125. 0 0 -4250527.3 0 1825 -2041200.0 -4250527.3 108% - 31s
  126. 0 0 -4173960.6 0 2042 -2041200.0 -4173960.6 104% - 32s
  127. 0 0 -4157693.6 0 2031 -2041200.0 -4157693.6 104% - 32s
  128. 0 0 -4149336.8 0 2041 -2041200.0 -4149336.8 103% - 32s
  129. 0 0 -4149164.6 0 2052 -2041200.0 -4149164.6 103% - 32s
  130. 0 0 -4148646.0 0 2082 -2041200.0 -4148646.0 103% - 33s
  131. 0 0 -4148646.0 0 2082 -2041200.0 -4148646.0 103% - 33s
  132. 0 0 -4105999.9 0 2106 -2041200.0 -4105999.9 101% - 33s
  133. 0 0 -4093182.9 0 2160 -2041200.0 -4093182.9 101% - 33s
  134. 0 0 -4084048.9 0 2195 -2041200.0 -4084048.9 100% - 33s
  135. 0 0 -4079358.0 0 2187 -2041200.0 -4079358.0 100% - 33s
  136. 0 0 -4079066.2 0 2233 -2041200.0 -4079066.2 100% - 33s
  137. 0 0 -4079035.9 0 2219 -2041200.0 -4079035.9 100% - 33s
  138. 0 0 -4061911.6 0 2300 -2041200.0 -4061911.6 99.0% - 33s
  139. 0 0 -4057763.1 0 2295 -2041200.0 -4057763.1 98.8% - 34s
  140. 0 0 -4056080.3 0 2331 -2041200.0 -4056080.3 98.7% - 34s
  141. 0 0 -4056002.3 0 2323 -2041200.0 -4056002.3 98.7% - 34s
  142. 0 0 -4044546.1 0 2257 -2041200.0 -4044546.1 98.1% - 34s
  143. 0 0 -4030902.2 0 2350 -2041200.0 -4030902.2 97.5% - 34s
  144. 0 0 -4027795.5 0 2388 -2041200.0 -4027795.5 97.3% - 34s
  145. 0 0 -4027453.3 0 2398 -2041200.0 -4027453.3 97.3% - 34s
  146. 0 0 -4027434.7 0 2397 -2041200.0 -4027434.7 97.3% - 34s
  147. 0 0 -4013242.4 0 2309 -2041200.0 -4013242.4 96.6% - 34s
  148. 0 0 -4011442.1 0 2279 -2041200.0 -4011442.1 96.5% - 34s
  149. 0 0 -4010501.4 0 2396 -2041200.0 -4010501.4 96.5% - 34s
  150. 0 0 -4010062.8 0 2370 -2041200.0 -4010062.8 96.5% - 34s
  151. 0 0 -4009282.7 0 2414 -2041200.0 -4009282.7 96.4% - 34s
  152. 0 0 -4009003.2 0 2432 -2041200.0 -4009003.2 96.4% - 34s
  153. 0 0 -4005235.4 0 2364 -2041200.0 -4005235.4 96.2% - 35s
  154. 0 0 -4004756.8 0 2376 -2041200.0 -4004756.8 96.2% - 35s
  155. 0 0 -4004377.4 0 2427 -2041200.0 -4004377.4 96.2% - 35s
  156. 0 0 -4004098.8 0 2428 -2041200.0 -4004098.8 96.2% - 35s
  157. 0 0 -4003470.1 0 2428 -2041200.0 -4003470.1 96.1% - 35s
  158. 0 0 -4003470.1 0 2072 -2041200.0 -4003470.1 96.1% - 36s
  159. 0 2 -4003470.1 0 1984 -2041200.0 -4003470.1 96.1% - 37s
  160. 36 41 -3889452.0 6 2137 -2041200.0 -3939346.2 93.0% 547 40s
  161. H 560 496 -2064200.000 -3939346.2 90.8% 158 44s
  162. 659 558 -3771380.1 9 2215 -2064200.0 -3939346.2 90.8% 153 45s
  163. H 685 585 -2076200.000 -3939346.2 89.7% 162 45s
  164. H 712 611 -2103000.000 -3939346.2 87.3% 168 45s
  165. H 897 749 -2140800.000 -3934685.2 83.8% 171 46s
  166. H 1027 852 -2143850.000 -3934685.2 83.5% 170 47s
  167.  
  168. Cutting planes:
  169. Gomory: 18
  170. Cover: 17
  171. Implied bound: 392
  172. Clique: 54
  173. MIR: 186
  174. StrongCG: 4
  175. Flow cover: 436
  176. Zero half: 5
  177. RLT: 4
  178. Relax-and-lift: 76
  179.  
  180. Explored 1030 nodes (196949 simplex iterations) in 49.42 seconds
  181. Thread count was 4 (of 4 available processors)
  182.  
  183. Solution count 7: -2.14385e+06 -2.14385e+06 -2.1408e+06 ... -2.0412e+06
  184.  
  185. Time limit reached
  186. Best objective -2.143850000000e+06, best bound -3.934685220847e+06, gap 83.5336%
  187.  
  188. ---------------------------------------------------------------------------
  189. Multi-objectives: stopped in 49.43 seconds, solution count 10
  190. Sub-optimal termination for some objective, not solved to optimality
  191.  
  192.  
  193. User-callback calls 25586, time in user-callback 0.01 sec
  194.  
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