Exclusively use OAI_RNGSEED env variable everywhere

Hide normal table initialization of Ziggurat generator from outside to
force the usage of randominit() for RNG initialization. In this step,
remove the randominit() seed parameter and only rely on OAI_RNGSEED for
a consistent RNG initialization, as this parameter was used differently
("0" as fixed number or to force a random seed).

Now, only use OAI_RNGSEED env variable to force the usage of a fixed
seed.

openair1/SIMULATION/NR_PHY/dlschsim.c

@@ -141,7 +141,7 @@ int main(int argc, char **argv)
   }
 
   // logInit();
-  randominit(0);
+  randominit();
 
   int c;
   while ((c = getopt(argc, argv, "--:O:df:hpVg:i:j:n:l:m:r:s:S:y:z:M:N:F:R:P:L:X:")) != -1) {

openair1/SIMULATION/NR_PHY/dlsim.c

@@ -393,7 +393,7 @@ int main(int argc, char **argv)
     exit_fun("[NR_DLSIM] Error, configuration module init failed\n");
   }
 
-  randominit(0);
+  randominit();
 
   int print_perf = 0;
 

openair1/SIMULATION/NR_PHY/pbchsim.c

@@ -176,8 +176,6 @@ int main(int argc, char **argv)
 
   float target_error_rate = 0.01;
 
-  int seed = 0;
-
   cpuf = get_cpu_freq_GHz();
 
   if ((uniqCfg = load_configmodule(argc, argv, CONFIG_ENABLECMDLINEONLY)) == 0) {
@@ -185,8 +183,7 @@ int main(int argc, char **argv)
   }
 
   int c;
-  while ((c = getopt (argc, argv, "--:O:c:F:g:hIL:m:M:n:N:o:P:r:R:s:S:x:y:z:")) != -1) {
-
+  while ((c = getopt(argc, argv, "--:O:c:F:g:hIL:m:M:n:N:o:P:R:s:S:x:y:z:")) != -1) {
     /* ignore long options starting with '--', option '-O' and their arguments that are handled by configmodule */
     /* with this opstring getopt returns 1 for non-option arguments, refer to 'man 3 getopt' */
     if (c == 1 || c == '-' || c == 'O')
@@ -312,20 +309,6 @@ int main(int argc, char **argv)
         printf("Illegal PBCH phase (0-3) got %d\n",pbch_phase);
       break;
 
-    /*
-    case 'r':
-      ricean_factor = pow(10,-.1*atof(optarg));
-      if (ricean_factor>1) {
-        printf("Ricean factor must be between 0 and 1\n");
-        exit(-1);
-      }
-      break;
-    */
-
-    case 'r':
-      seed = atoi(optarg);
-      break;
-
     case 'R':
       N_RB_DL = atoi(optarg);
       break;
@@ -379,8 +362,10 @@ int main(int argc, char **argv)
 
     default:
     case 'h':
-      printf("%s -F input_filename -g channel_mod -h(elp) -I(nitial sync) -L log_lvl -n n_frames -M SSBs -n frames -N cell_id -o FO -P phase -r seed -R RBs -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant\n",
-             argv[0]);
+      printf(
+          "OAI_RNGSEED=xxx ./%s -F input_filename -g channel_mod -h(elp) -I(nitial sync) -L log_lvl -n n_frames -M SSBs -n frames "
+          "-N cell_id -o FO -P phase -R RBs -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant\n",
+          argv[0]);
       //printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n");
       printf("-c SSB subcarrier offset\n");
       //printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n");
@@ -401,7 +386,6 @@ int main(int argc, char **argv)
       //printf("-O oversampling factor (1,2,4,8,16)\n");
       //printf("-p Use extended prefix mode\n");
       printf("-P PBCH phase, allowed values 0-3\n");
-      printf("-r set the random number generator seed (default: 0 = current time)\n");
       printf("-R N_RB_DL\n");
       printf("-s Starting SNR, runs from SNR0 to SNR0 + 10 dB if not -S given. If -n 1, then just SNR is simulated\n");
       printf("-S Ending SNR, runs from SNR0 to SNR1\n");
@@ -414,7 +398,7 @@ int main(int argc, char **argv)
     }
   }
 
-  randominit(seed);
+  randominit();
 
   logInit();
   set_glog(loglvl);

openair1/SIMULATION/NR_PHY/prachsim.c

@@ -162,7 +162,7 @@ int main(int argc, char **argv){
     exit_fun("[SOFTMODEM] Error, configuration module init failed\n");
   }
 
-  randominit(0);
+  randominit();
 
   int c;
   while ((c = getopt (argc, argv, "--:O:hHaA:Cc:l:r:p:g:m:n:s:S:t:x:y:v:V:z:N:F:d:Z:L:R:E")) != -1) {

openair1/SIMULATION/NR_PHY/psbchsim.c

@@ -325,15 +325,13 @@ int main(int argc, char **argv)
   // int frame_length_complex_samples_no_prefix;
   NR_DL_FRAME_PARMS *frame_parms;
 
-  int seed = 0;
-
   cpuf = get_cpu_freq_GHz();
 
   if ((uniqCfg = load_configmodule(argc, argv, CONFIG_ENABLECMDLINEONLY)) == 0) {
     exit_fun("[NR_PSBCHSIM] Error, configuration module init failed\n");
   }
 
-  randominit(0);
+  randominit();
 
   int c;
   while ((c = getopt(argc, argv, "--:O:c:hn:o:s:FIL:N:R:S:T:")) != -1) {
@@ -456,7 +454,7 @@ int main(int argc, char **argv)
     }
   }
 
-  randominit(seed);
+  randominit();
 
   logInit();
   set_glog(loglvl);

openair1/SIMULATION/NR_PHY/pucchsim.c

@@ -151,7 +151,7 @@ int main(int argc, char **argv)
     exit_fun("[NR_PUCCHSIM] Error, configuration module init failed\n");
   }
 
-  randominit(0);
+  randominit();
   logInit();
 
   int c;

openair1/SIMULATION/NR_PHY/ulschsim.c

@@ -139,7 +139,7 @@ int main(int argc, char **argv)
   }
 
   //logInit();
-  randominit(0);
+  randominit();
 
   int c;
   while ((c = getopt(argc, argv, "--:O:hg:n:s:S:py:z:M:N:R:F:m:l:q:r:W:")) != -1) {

openair1/SIMULATION/NR_PHY/ulsim.c

@@ -348,7 +348,7 @@ int main(int argc, char *argv[])
   }
   int ul_proc_error = 0; // uplink processing checking status flag
   //logInit();
-  randominit(0);
+  randominit();
 
   /* initialize the sin-cos table */
   InitSinLUT();