Results

This page provides tables with the current best-known feasible solution for each CPIT and PCPSP instance of each mine. Additionally, we provide the objective value of the optimal LP relaxation of each instance, which is a valid upper bound.

Click on mine name for further details about the solution.


UPIT & CPIT Results

Name UPIT value
CPIT LP
 upper bound
CPIT Best known
 feas. sol.
CPIT
Gap (%)
newman1
26,086,899
24,486,184
23,483,671
4.1%
zuck_small
1,422,726,898
854,182,396
788,652,600
7.7%
kd
652,195,037
409,498,555
396,858,193
3.1%
zuck_medium
1,075,124,490
710,641,410
615,411,415
13.4%
p4hd
293,373,256
247,415,730
246,138,696
0.5%
marvin
1,415,655,436
863,916,131
820,726,048
5.0%
w23
510,973,998
400,653,199
392,226,063
2.1%
zuck_large
122,220,280
57,389,094
56,777,190
1.1%
sm2
2,743,603,730
1,648,051,083
1,645,242,774
0.2%
mclaughlin_limit
1,495,726,474
1,078,979,501
1,073,327,197
0.5%
mclaughlin
1,495,886,962
1,079,024,268
1,073,327,197
0.5%


PCPSP Results

Name PCPSP LP
 upper bound
PCPSP
 Best known
 feas. sol.
PCPSP
 Gap (%)
newman1
24,486,549
23,658,230
3.4%
zuck_small
905,878,172
872,372,967
3.7%
kd
410,891,003
406,871,207
1.0%
zuck_medium
750,519,109
675,931,038
9.9%
marvin
911,704,665
885,968,070
2.8%
w23
387,693,394
0
100%
zuck_large
57,938,790
57,334,014
1.0%
sm2
1,652,394,327
1,650,439,213
0.1%
mclaughlin_limit
1,324,829,727
1,321,662,551
0.2%
mclaughlin
1,512,971,680
1,510,126,435
0.2%

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