我想了解一个ILP模型的IBM ILOG CPLEX工作室的引擎日志。我也检查了他们的文档，但不能得到明确的想法。
引擎日志示例:
Version identifier: 22.1.0.0 | 2022-03-09 | 1a383f8ce
Legacy callback pi
Tried aggregator 2 times.
MIP Presolve eliminated 139 rows and 37 columns.
MIP Presolve modified 156 coefficients.
Aggregator did 11 substitutions.
Reduced MIP has 286 rows, 533 columns, and 3479 nonzeros.
Reduced MIP has 403 binaries, 0 generals, 0 SOSs, and 129 indicators.
Presolve time = 0.05 sec. (6.16 ticks)
Found incumbent of value 233.000000 after 0.07 sec. (9.40 ticks)
Probing time = 0.00 sec. (1.47 ticks)
Tried aggregator 2 times.
Detecting symmetries...
Aggregator did 2 substitutions.
Reduced MIP has 284 rows, 531 columns, and 3473 nonzeros.
Reduced MIP has 402 binaries, 129 generals, 0 SOSs, and 129 indicators.
Presolve time = 0.01 sec. (2.87 ticks)
Probing time = 0.00 sec. (1.45 ticks)
Clique table members: 69.
MIP emphasis: balance optimality and feasibility.
MIP search method: dynamic search.
Parallel mode: deterministic, using up to 8 threads.
Root relaxation solution time = 0.00 sec. (0.50 ticks)
Nodes Cuts/
Node Left Objective IInf Best Integer Best Bound ItCnt Gap
* 0+ 0 233.0000 18.0000 92.27%
* 0+ 0 178.0000 18.0000 89.89%
* 0+ 0 39.0000 18.0000 53.85%
0 0 22.3333 117 39.0000 22.3333 4 42.74%
0 0 28.6956 222 39.0000 Cuts: 171 153 26.42%
0 0 31.1543 218 39.0000 Cuts: 123 251 20.12%
0 0 32.1544 226 39.0000 Cuts: 104 360 17.55%
0 0 32.6832 212 39.0000 Cuts: 102 456 16.20%
0 0 33.1524 190 39.0000 Cuts: 65 521 14.99%
Detecting symmetries...
0 0 33.3350 188 39.0000 Cuts: 66 566 14.53%
0 0 33.4914 200 39.0000 Cuts: 55 614 14.12%
0 0 33.6315 197 39.0000 Cuts: 47 673 13.77%
0 0 33.6500 207 39.0000 Cuts: 61 787 13.72%
0 0 33.7989 206 39.0000 Cuts: 91 882 13.34%
* 0+ 0 38.0000 33.7989 11.06%
0 0 33.9781 209 38.0000 Cuts: 74 989 10.58%
0 0 34.0074 209 38.0000 Cuts: 65 1043 10.51%
0 0 34.2041 220 38.0000 Cuts: 63 1124 9.99%
0 0 34.2594 211 38.0000 Cuts: 96 1210 9.84%
0 0 34.3032 216 38.0000 Cuts: 86 1274 9.73%
0 0 34.3411 211 38.0000 Cuts: 114 1353 9.63%
0 0 34.3420 220 38.0000 Cuts: 82 1402 9.63%
0 0 34.3709 218 38.0000 Cuts: 80 1462 9.55%
0 0 34.4494 228 38.0000 Cuts: 87 1530 9.34%
0 0 34.4882 229 38.0000 Cuts: 97 1616 9.24%
0 0 34.5173 217 38.0000 Cuts: 72 1663 9.16%
0 0 34.5545 194 38.0000 Cuts: 67 1731 9.07%
0 0 34.5918 194 38.0000 Cuts: 76 1786 8.97%
0 0 34.6094 199 38.0000 Cuts: 73 1840 8.92%
0 0 34.6226 206 38.0000 Cuts: 77 1883 8.89%
0 0 34.6421 206 38.0000 Cuts: 53 1928 8.84%
0 0 34.6427 213 38.0000 Cuts: 84 1982 8.83%
Detecting symmetries...
0 2 34.6427 213 38.0000 34.6478 1982 8.82%
Elapsed time = 0.44 sec. (235.86 ticks, tree = 0.02 MB, solutions = 4)
GUB cover cuts applied: 32
Cover cuts applied: 328
Implied bound cuts applied: 205
Flow cuts applied: 11
Mixed integer rounding cuts applied: 17
Zero-half cuts applied: 35
Gomory fractional cuts applied: 1
Root node processing (before b&c):
Real time = 0.43 sec. (235.61 ticks)
Parallel b&c, 8 threads:
Real time = 0.27 sec. (234.23 ticks)
Sync time (average) = 0.11 sec.
Wait time (average) = 0.00 sec.
------------
Total (root+branch&cut) = 0.71 sec. (469.84 ticks)
我主要想了解什么是节点，左，间隙，根节点处理，并行b&c.
我希望你们中的任何一个人都能提供一个资源或清楚地解释它，以便在将来有人开始使用IBM ILOG CPLEX studio时对它有帮助
Thanks much in advance
我期待有人来填补关于ibm ILOG CPLEX studio的引擎日志的知识空白
我推荐
进度报告:解释节点日志
https://www.ibm.com/docs/en/icos/12.8.0.0?topic=mip-progress-reports-interpreting-node-log