Function starpu_data_unpack_node 

pub unsafe extern "C" fn starpu_data_unpack_node(
    handle: starpu_data_handle_t,
    node: c_uint,
    ptr: *mut c_void,
    count: usize,
) -> c_int

Unpack in handle the data located at \p ptr of size \p count allocated on node \p node as described by the interface of the data. The interface registered at \p handle must define an unpacking operation (see starpu_data_interface_ops). See \ref DataHandlesHelpers for more details.