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feat(nr_dlsch): option to provide the number of symbols per thread

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* Add option `--L1s.L1_num_tx_sym_per_thread` for the softmodems and `-Y` for `nr_dlsim`
  to provide the number of symbols processed per thread.
  It defaults to 0 which makes that every symbols are processed in one thread.
* The last symbol processing task is processed in the L1 TX thread.
This commit is contained in:
Romain Beurdouche
2026-04-08 13:18:54 +00:00
parent f6693d41e3
commit 87402f4959
5 changed files with 35 additions and 12 deletions
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openair1/SIMULATION/NR_PHY/dlsim.c
+8 -1
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@@ -382,6 +382,8 @@ int main(int argc, char **argv)
uint8_t dlsch_threads = 0;
int chest_type[2] = {0};
uint8_t max_ldpc_iterations = 5;
// number of PDSCH symbols per thread = 0 means do not use thread pool
int num_pdsch_symbols_per_thread = 0;
if ((uniqCfg = load_configmodule(argc, argv, CONFIG_ENABLECMDLINEONLY)) == 0) {
exit_fun("[NR_DLSIM] Error, configuration module init failed\n");
}
@@ -583,6 +585,10 @@ int main(int argc, char **argv)
gNBthreads[sizeof(gNBthreads)-1]=0;
break;
case 'Y':
num_pdsch_symbols_per_thread = atoi(optarg);
break;
case 'Z' :
filename_csv = strdup(optarg);
AssertFatal(filename_csv != NULL, "strdup() error: errno %d\n", errno);
@@ -657,6 +663,7 @@ int main(int argc, char **argv)
printf("-T Enable PTRS, arguments list L_PTRS{0,1,2} K_PTRS{2,4}, e.g. -T 2 0 2 \n");
printf("-U Change DMRS Config, arguments list DMRS TYPE{0=A,1=B} DMRS AddPos{0:2} DMRS ConfType{1:2}, e.g. -U 3 0 2 1 \n");
printf("-X gNB thread pool configuration, n => no threads\n");
printf("-Y Number of symbols processed per PDSCH generation thread\n");
printf("-Z Output filename (.csv format) for stats\n");
exit (-1);
break;
@@ -715,7 +722,7 @@ int main(int argc, char **argv)
AssertFatal((gNB->if_inst = NR_IF_Module_init(0)) != NULL, "Cannot register interface");
gNB->if_inst->NR_PHY_config_req = nr_phy_config_request;
gNB->num_pdsch_symbols_per_thread = 1;
gNB->num_pdsch_symbols_per_thread = num_pdsch_symbols_per_thread;
NR_ServingCellConfigCommon_t *scc = calloc(1,sizeof(*scc));;
prepare_scc(scc);