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Runner: update the seed_options dictionary #448

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finozzifa wants to merge 2 commits into from
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Runner: update the seed_options dictionary #448

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c5797cf
code: update the seed_options
finozzifa Feb 24, 2026
c5c7cc9
Merge branch 'main' into knitro_remove_seed
finozzifa Feb 25, 2026
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12 changes: 9 additions & 3 deletions runner/run_solver.py
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,7 @@ def get_solver(solver_name):
seed_options = {
"highs": {"random_seed": 0, "mip_rel_gap": mip_gap},
"glpk": {"seed": 0, "mipgap": mip_gap},
"gurobi": {"seed": 0, "MIPGap": mip_gap},
"gurobi": {"seed": 0, "MIPGap": mip_gap, "Crossover": 0},
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"scip": {"randomization/randomseedshift": 0, "limits/gap": mip_gap},
"cbc": {
"randomCbcSeed": 1, # 0 indicates time of day
Expand All @@ -75,11 +75,17 @@ def get_solver(solver_name):
"cplex": {
"randomseed": 0,
"mip.tolerances.mipgap": mip_gap,
"solutiontype": 2,
},
"knitro": {
"KN_PARAM_MS_SEED": 1066,
"ms_seed": 1066,
"bar_maxcrossit": 0,
},
"xpress": {
"miprelgapnotify": mip_gap,
"randomseed": 0,
"crossover": 0,
},
"xpress": {"miprelgapnotify": mip_gap, "randomseed": 0},
}

return solver_class(**seed_options.get(solver_name, {}))
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