public void setWorkGroupSizeToNull() {
        workGroupSize.set(1, 0, 0, 0);
    }
Tells the driver to figure out the work group size on their own.
Use this if you do not rely on specific work group layouts, i.e.
because shared memory is not used.
{@link #Run1(com.jme3.opencl.CommandQueue, com.jme3.opencl.Kernel.WorkSize, java.lang.Object...) }
implicitly calls this method.
jme3-core/src/main/java/com/jme3/opencl/Kernel.java