if (count_requests > 0) {
TRACE_smpi_comm_in(my_proc_id, __func__, new simgrid::instr::Pt2PtTIData("waitAll", -1, count_requests, ""));
std::vector<std::pair</*sender*/int,/*recv*/int>> sender_receiver;
if (count_requests > 0) {
TRACE_smpi_comm_in(my_proc_id, __func__, new simgrid::instr::Pt2PtTIData("waitAll", -1, count_requests, ""));
std::vector<std::pair</*sender*/int,/*recv*/int>> sender_receiver;