diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3495f2f..52949de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 - Default branch renamed from `master` to `main`.
+- Driver now delays allocating large checking vectors until after computation has finished.
 - Use cl::sycl::id parameters instead of cl::sycl::item.
 - Update local copy of OpenCL C++ header file.
 - Ensure correct SYCL queue constructor with explicit async_handler.
diff --git a/main.cpp b/main.cpp
index d1031cf..6d2f679 100644
--- a/main.cpp
+++ b/main.cpp
@@ -130,14 +130,6 @@ void run()
 
   }
 
-  // Create host vectors
-  std::vector<T> a(ARRAY_SIZE);
-  std::vector<T> b(ARRAY_SIZE);
-  std::vector<T> c(ARRAY_SIZE);
-
-  // Result of the Dot kernel
-  T sum;
-
   Stream<T> *stream;
 
 #if defined(CUDA)
@@ -184,6 +176,9 @@ void run()
 
   stream->init_arrays(startA, startB, startC);
 
+  // Result of the Dot kernel
+  T sum;
+
   // List of times
   std::vector<std::vector<double>> timings(5);
 
@@ -226,6 +221,11 @@ void run()
   }
 
   // Check solutions
+  // Create host vectors
+  std::vector<T> a(ARRAY_SIZE);
+  std::vector<T> b(ARRAY_SIZE);
+  std::vector<T> c(ARRAY_SIZE);
+
   stream->read_arrays(a, b, c);
   check_solution<T>(num_times, a, b, c, sum);
 
@@ -338,11 +338,6 @@ void run_triad()
     std::cout.precision(ss);
   }
 
-  // Create host vectors
-  std::vector<T> a(ARRAY_SIZE);
-  std::vector<T> b(ARRAY_SIZE);
-  std::vector<T> c(ARRAY_SIZE);
-
   Stream<T> *stream;
 
 #if defined(CUDA)
@@ -399,7 +394,13 @@ void run_triad()
   double runtime = std::chrono::duration_cast<std::chrono::duration<double> >(t2 - t1).count();
 
   // Check solutions
+  // Create host vectors
+  std::vector<T> a(ARRAY_SIZE);
+  std::vector<T> b(ARRAY_SIZE);
+  std::vector<T> c(ARRAY_SIZE);
+
   T sum = 0.0;
+
   stream->read_arrays(a, b, c);
   check_solution<T>(num_times, a, b, c, sum);