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haifeng.ji at lanxing.ai haifeng.ji at lanxing.ai
Fri Feb 5 04:15:40 CET 2021


Hi Ambros,

Thank you for your response.
It takes very long time to wait for all solvers to reach the limit regardless one of the solvers reach the limit early on. I have tried adjusting various parameters under concurrent/sync none of them works. Which parameter should I look for? Below is my terminal output. The first solver reach the gap limit at around 200-300 seconds.

Presolving Time: 15.97
initializing seeds to 1963210296 in concurrent solver 'scip-2'
initializing seeds to 1332858414 in concurrent solver 'scip-3'
initializing seeds to 1541326760 in concurrent solver 'scip-4'
starting solve in concurrent solver 'scip-3'
starting solve in concurrent solver 'scip-1'
starting solve in concurrent solver 'scip-4'
starting solve in concurrent solver 'scip-2'
concurrent solver 'scip-2' stopped with status gap limit reached
concurrent solver 'scip-1' stopped with status gap limit reached
concurrent solver 'scip-4' stopped with status gap limit reached
concurrent solver 'scip-3' stopped with status gap limit reached
 time | mem |  dualbound   | primalbound  |  gap
 1021s|1147M| 4.295504e+09 | 4.298366e+09 |   0.07%
 1021s|1147M| 4.295504e+09 | 4.298366e+09 |   0.07%

SCIP Status        : solving was interrupted [gap limit reached]
Solving Time (sec) : 1020.61
Solving Nodes      : 1
Primal Bound       : +4.30157026376577e+09 (5 solutions)
Dual Bound         : +4.29446745061193e+09
Gap                : 0.17 %


Thank you,
Jerry Ji
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