build_oai flag to turn off AVX512 generation on machines that have it. Needed for caracal at EURECOM because of CUDA compiler which doesn't like the flag. Added creation of threadpool in nr_ulsim to test channel decoding parallelization on different high CPU count machines

openair1/SIMULATION/NR_PHY/ulsim.c

@@ -319,6 +319,7 @@ int main(int argc, char **argv)
   int ibwps=24;
   int ibwp_rboffset=41;
   int params_from_file = 0;
+  int threadCnt=1;
   if ( load_configmodule(argc,argv,CONFIG_ENABLECMDLINEONLY) == 0 ) {
     exit_fun("[NR_ULSIM] Error, configuration module init failed\n");
   }
@@ -329,7 +330,7 @@ int main(int argc, char **argv)
   /* initialize the sin-cos table */
    InitSinLUT();
 
-  while ((c = getopt(argc, argv, "a:b:c:d:ef:g:h:ikl:m:n:p:r:s:u:w:y:z:F:G:H:M:N:PR:S:T:U:L:Z")) != -1) {
+  while ((c = getopt(argc, argv, "a:b:c:d:ef:g:h:ikl:m:n:p:r:s:t:u:w:y:z:F:G:H:M:N:PR:S:T:U:L:Z")) != -1) {
     printf("handling optarg %c\n",c);
     switch (c) {
 
@@ -454,7 +455,9 @@ int main(int argc, char **argv)
       snr0 = atof(optarg);
       printf("Setting SNR0 to %f\n", snr0);
       break;
-
+    case 't':
+      threadCnt = atoi(optarg);
+      break;
     case 'u':
       mu = atoi(optarg);
       break;
@@ -662,7 +665,14 @@ int main(int argc, char **argv)
   gNB->ofdm_offset_divisor = UINT_MAX;
   gNB->threadPool = (tpool_t*)malloc(sizeof(tpool_t));
   gNB->respDecode = (notifiedFIFO_t*) malloc(sizeof(notifiedFIFO_t));
-  char tp_param[] = "n";
+  char tp_param[80];
+  sprintf(tp_param,"-1");
+  int s_offset = 0;
+  for (int icpu=1; icpu<threadCnt; icpu++) {
+    sprintf(tp_param+2+s_offset,",-1");
+    s_offset += 3;
+  }
+
   initTpool(tp_param, gNB->threadPool, false);
   initNotifiedFIFO(gNB->respDecode);
   gNB->resp_L1_tx = (notifiedFIFO_t*) malloc(sizeof(notifiedFIFO_t));