XBT_PUBLIC(smx_action_t) SIMIX_req_comm_isend(smx_rdv_t rdv, double task_size,
double rate, void *src_buff,
size_t src_buff_size,
XBT_PUBLIC(smx_action_t) SIMIX_req_comm_isend(smx_rdv_t rdv, double task_size,
double rate, void *src_buff,
size_t src_buff_size,