1 files changed, 9 insertions, 3 deletions
diff --git a/silx/resources/opencl/addition.cl b/silx/resources/opencl/addition.cl
index 8ecfd4e..35d7996 100644
--- a/silx/resources/opencl/addition.cl
+++ b/silx/resources/opencl/addition.cl
@@ -27,10 +27,16 @@
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  */
-__kernel void addition(__global float* a, __global float* b, __global float* res, int N)
+
+
+// "Hello_world" kernel to test if OpenCL is actually working
+kernel void addition(global float* a,
+                     global float* b,
+                     global float* res,
+                     int N)
 {
-    unsigned int i = get_global_id(0);
+    int i = get_global_id(0);
     if( i<N ){
         res[i] = a[i] + b[i];
     }
-}
-\ No newline at end of file
+}