1 files changed, 49 insertions, 0 deletions
diff --git a/src/boost/libs/compute/perf/perf_thrust_count.cu b/src/boost/libs/compute/perf/perf_thrust_count.cu
new file mode 100644
index 00000000..d69df901
--- /dev/null
+++ b/src/boost/libs/compute/perf/perf_thrust_count.cu
@@ -0,0 +1,49 @@
+//---------------------------------------------------------------------------//
+// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
+//
+// Distributed under the Boost Software License, Version 1.0
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+// See http://boostorg.github.com/compute for more information.
+//---------------------------------------------------------------------------//
+
+#include <algorithm>
+#include <iostream>
+#include <vector>
+
+#include <thrust/count.h>
+#include <thrust/host_vector.h>
+#include <thrust/device_vector.h>
+
+#include "perf.hpp"
+
+int rand_int()
+{
+    return static_cast<int>((rand() / double(RAND_MAX)) * 25.0);
+}
+
+int main(int argc, char *argv[])
+{
+    perf_parse_args(argc, argv);
+    std::cout << "size: " << PERF_N << std::endl;
+
+    // create vector of random numbers on the host
+    thrust::host_vector<int> host_vector(PERF_N);
+    thrust::generate(host_vector.begin(), host_vector.end(), rand_int);
+
+    thrust::device_vector<int> v = host_vector;
+
+    size_t count = 0;
+    perf_timer t;
+    for(size_t trial = 0; trial < PERF_TRIALS; trial++){
+        t.start();
+        count = thrust::count(v.begin(), v.end(), 4);
+        cudaDeviceSynchronize();
+        t.stop();
+    }
+    std::cout << "time: " << t.min_time() / 1e6 << " ms" << std::endl;
+    std::cout << "count: " << count << std::endl;
+
+    return 0;
+}