From cda6cc5da34217768d00a598a5fb62ad9d0b52b3 Mon Sep 17 00:00:00 2001
From: Mizux Seiha <mizux.dev@gmail.com>
Date: Wed, 15 Jul 2020 15:51:56 +0200
Subject: [PATCH] Fix uncapacited_facility_location example

note: calling setNumThreads() when SCIP is compiled without
parallel support make the solver returning error.
---
 examples/cpp/uncapacitated_facility_location.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/cpp/uncapacitated_facility_location.cc b/examples/cpp/uncapacitated_facility_location.cc
index 10899376a9..7bb3dbe09c 100644
--- a/examples/cpp/uncapacitated_facility_location.cc
+++ b/examples/cpp/uncapacitated_facility_location.cc
@@ -139,7 +139,8 @@ static void UncapacitatedFacilityLocation(int32 facilities,
     std::cout << "LP-Model:\n" << lp_string << std::endl;
   }
   // Set options and solve
-  solver.SetNumThreads(8);
+  if (optimization_problem_type != MPSolver::SCIP_MIXED_INTEGER_PROGRAMMING)
+    solver.SetNumThreads(8);
   solver.EnableOutput();
   const MPSolver::ResultStatus result_status = solver.Solve();
   // Check that the problem has an optimal solution.