From c5797cfc2e76f05b53f3eea4dad1cfb7019b4b20 Mon Sep 17 00:00:00 2001
From: Fabrizio Finozzi <fabrizio.finozzi.business@gmail.com>
Date: Tue, 24 Feb 2026 21:26:20 +0100
Subject: [PATCH] code: update the seed_options

---
 runner/run_solver.py | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/runner/run_solver.py b/runner/run_solver.py
index ef3281b5..6be25e1b 100644
--- a/runner/run_solver.py
+++ b/runner/run_solver.py
@@ -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},
         "scip": {"randomization/randomseedshift": 0, "limits/gap": mip_gap},
         "cbc": {
             "randomCbcSeed": 1,  # 0 indicates time of day
@@ -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, {}))