print_request("New send", request);
mailbox = smpi_process_remote_mailbox(request->dst);
request->action = SIMIX_req_comm_isend(mailbox, request->size, -1.0,
print_request("New send", request);
mailbox = smpi_process_remote_mailbox(request->dst);
request->action = SIMIX_req_comm_isend(mailbox, request->size, -1.0,