diff --git a/VadereUtils/resources/BitonicSort.cl b/VadereUtils/resources/BitonicSort.cl
index 722ebfc8a0881adf1520030b324df62a725da6c7..f7c00dec36dbcdf34377650c209ae18691a76664 100644
--- a/VadereUtils/resources/BitonicSort.cl
+++ b/VadereUtils/resources/BitonicSort.cl
@@ -9,7 +9,7 @@
  *
  */
 
-#define LOCAL_SIZE_LIMIT 256U
+#define LOCAL_SIZE_LIMIT 16U
 
 inline void ComparatorPrivate(
     uint *keyA,
diff --git a/VadereUtils/src/org/vadere/util/opencl/CLBitonicSort.java b/VadereUtils/src/org/vadere/util/opencl/CLBitonicSort.java
index b8ac32a08cebf98494abb03145f662b996183a73..422382e2aa126afbed9681ca3af97a2190d0fc54 100644
--- a/VadereUtils/src/org/vadere/util/opencl/CLBitonicSort.java
+++ b/VadereUtils/src/org/vadere/util/opencl/CLBitonicSort.java
@@ -93,7 +93,7 @@ public class CLBitonicSort {
     private int[] resultKeys;
 
 	//Note: logically shared with BitonicSort.cl!
-    private static final int LOCAL_SIZE_LIMIT = 256;
+    private static final int LOCAL_SIZE_LIMIT = 16;
 
     private boolean debug = false;