use 64 bit seed and RNG

acts-project · Nov 13, 2024 · c46202a · c46202a
1 parent 3185410
commit c46202a
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/Examples/Algorithms/Digitization/src/DigitizationAlgorithm.cpp b/Examples/Algorithms/Digitization/src/DigitizationAlgorithm.cpp
@@ -162,7 +162,7 @@ ActsExamples::ProcessCode ActsExamples::DigitizationAlgorithm::execute(
 
   // Count the number of hits per particle and module. Cleared before each
   // module.
-  std::map<SimBarcode, int> particleOnModuleHitCount;
+  std::map<SimBarcode, std::uint32_t> particleOnModuleHitCount;
 
   ACTS_DEBUG("Starting loop over modules ...");
   for (const auto& simHitsGroup : groupByModule(simHits)) {

diff --git a/Examples/Framework/include/ActsExamples/Framework/RandomNumbers.hpp b/Examples/Framework/include/ActsExamples/Framework/RandomNumbers.hpp
@@ -15,10 +15,10 @@ namespace ActsExamples {
 struct AlgorithmContext;
 
 /// The random number generator used in the framework.
-using RandomEngine = std::mt19937;  ///< Mersenne Twister
+using RandomEngine = std::mt19937_64;  ///< Mersenne Twister
 
 /// The seed type used in the framework.
-using RandomSeed = std::uint32_t;
+using RandomSeed = std::uint64_t;
 
 /// Provide event and algorithm specific random number generator.s
 ///