allGather 1974 ompi/mpi/java/java/Comm.java public final void allGather(Object sendbuf, int sendcount, Datatype sendtype, allGather 2013 ompi/mpi/java/java/Comm.java public final void allGather(Object buf, int count, Datatype type) allGather 2030 ompi/mpi/java/java/Comm.java private native void allGather(