/**
* Need a public setter for SMPI copy_callback function, so users can define
- * their own while still using default SIMIX_copy_callback for MSG copies.
+ * their own while still using default SIMIX_copy_callback for S4U copies.
*/
XBT_PUBLIC void smpi_comm_set_copy_data_callback(void (*callback)(smx_activity_t, void*, size_t));