fixup: fixed seed for consistent results across MPI ranks

ORNL · Jan 23, 2025 · 75fa8cd · 75fa8cd
1 parent 4a7d464
commit 75fa8cd
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/examples/mechanics/random_cracks.cpp b/examples/mechanics/random_cracks.cpp
@@ -64,9 +64,10 @@ void randomCracksExample( const std::string filename )
     Kokkos::Array<Kokkos::Array<double, 3>, Npn> notch_v1;
     Kokkos::Array<Kokkos::Array<double, 3>, Npn> notch_v2;
 
-    // Set random number generator
-    std::random_device rd;
-    std::mt19937 gen( rd() );
+    // Changing this seed will re-randomize the cracks.
+    std::size_t seed = 44758454;
+    // Random number generator
+    std::mt19937 gen( seed );
     std::uniform_real_distribution<> dis( 0.0, 1.0 );
 
     // Loop over pre-notches