我正在研究 CBC MILP Solver,版本:2.9.9。
我尝试加快我的最小化问题并设置opt.options['cutoff'] = 1000
而不是默认值 1e+50。
但日志仍然显示:
...
Cbc0010I After 42400 nodes, 24757 on tree, 1e+50 best solution, best possible -6.6278793e-16 (7972.68 seconds)
Cbc0010I After 42500 nodes, 24816 on tree, 1e+50 best solution, best possible -6.6278793e-16 (7987.70 seconds)
Cbc0010I After 42600 nodes, 24866 on tree, 1e+50 best solution, best possible -6.6278793e-16 (8000.12 seconds)
Cbc0010I After 42700 nodes, 24924 on tree, 1e+50 best solution, best possible -6.6278793e-16 (8021.60 seconds)
...
所以它没有效果。如何正确使用此选项?