Function mpi_sys::PMPI_Accumulate

pub unsafe extern "C" fn PMPI_Accumulate(
    origin_addr: *const c_void, 
    origin_count: c_int, 
    origin_datatype: MPI_Datatype, 
    target_rank: c_int, 
    target_disp: MPI_Aint, 
    target_count: c_int, 
    target_datatype: MPI_Datatype, 
    op: MPI_Op, 
    win: MPI_Win
) -> c_int