reduceScatter    3071 ompi/mpi/java/java/Comm.java 	public final void reduceScatter(Object sendbuf, Object recvbuf,
reduceScatter    3112 ompi/mpi/java/java/Comm.java 	public final void reduceScatter(Object buf, int[] counts, Datatype type, Op op)
reduceScatter    3130 ompi/mpi/java/java/Comm.java 	private native void reduceScatter(