diff --git a/auto-test.py b/auto-test.py
index 00af77d..81e3cb9 100644
--- a/auto-test.py
+++ b/auto-test.py
@@ -374,8 +374,13 @@ def run_gnb_test(args):
     parser.add_argument('--timing_advance',
                         type=int,
                         help='Timing advance. Only used at UE-side. Overrides timing advance of base configuration')
+    parser.add_argument('--cores',
+                        default='',
+                        type=str,
+                        help='Cores to force OAI gNB on, e.g., 0-45')
     parser.add_argument('--tqsample', default=True, action='store_true', help='use 3/4 of sampling rate in USRP')
     parser.add_argument('--flash', '-f', default=False, action='store_true')
+    parser.add_argument('--oai_extra_args', type=str, default='', help='Extra args to pass to OAI')
     args = parser.parse_args()
     args.f1_remote_node = '0.0.0.0'
     args.if_freq = 0
diff --git a/radio_api/common.sh b/radio_api/common.sh
index 7e821d6..84fc9c1 100755
--- a/radio_api/common.sh
+++ b/radio_api/common.sh
@@ -30,6 +30,7 @@ while IFS='=' read -r key value || [[ -n "$line" ]]; do
             "timing_advance") timing_advance="$value" ;;
             "start_dapp") start_dapp="$value" ;;
             "dapp_args") dapp_args="$value" ;;
+            "oai_extra_args") oai_extra_args="$value" ;;
             # Add more cases for other keys as needed
         esac
     fi
@@ -37,12 +38,11 @@ done < "$config_file"
 
 script_cmd=""
 if [ "$mode_type" == "gnb" ]; then
-    script_cmd="auto-test.py -T gnb"
+    script_cmd="auto-test.py -T gnb --cores 0-45"
+    if [ -z ${oai_extra_args+x} ]; then :; else script_cmd+=" --oai_extra_args="${oai_extra_args}; fi
 elif [ "$mode_type" == "ue" ]; then
     script_cmd="auto-test.py -T ue -t ${iperf_duration} --iperf_protocol ${iperf_protocol} -D ${dl_iperf_rate} -U ${ul_iperf_rate}"
     if [ -z ${timing_advance+x} ]; then :; else script_cmd=${script_cmd}" --timing_advance ${timing_advance}"; fi
-    echo ${script_cmd}
-    # script_cmd="auto-test.py -T ue -t ${iperf_duration}"
 elif [ "$mode_type" == "core" ]; then
     script_cmd="auto-test.py -T core-nw"
 else
@@ -50,3 +50,5 @@ else
     exit 1
 fi
 
+echo ${script_cmd}
+
diff --git a/radio_api/start.sh b/radio_api/start.sh
index c95ea86..0c9691f 100755
--- a/radio_api/start.sh
+++ b/radio_api/start.sh
@@ -37,7 +37,7 @@ else
   echo "[`date`] Command line ${script_cmd}" >> /logs/run.log
 
   cd ${APP_DIR}
-  python3 ${APP_DIR}/${script_cmd}
+  eval "python3 ${APP_DIR}/${script_cmd}" 2> /logs/python_error.log
 fi
 
 exit 0
diff --git a/radio_api/stop.sh b/radio_api/stop.sh
index 3998ba8..bf075bd 100755
--- a/radio_api/stop.sh
+++ b/radio_api/stop.sh
@@ -26,6 +26,7 @@ if [ "$mode_type" == "ue" ]; then
 elif [ "$mode_type" == "gnb" ]; then
   systemctl stop oai_ran.service
   cp /root/last_log /logs/nr-gnb.log
+  cp /root/openairinterface5g/cmake_targets/ran_build/build/*.log /logs/ 2> /dev/null
 elif [ "$mode_type" == "core" ]; then
   systemctl stop oai_5gc.service
   cp /root/iperf-core-server-ue-* /logs/
diff --git a/ran.py b/ran.py
index 556c635..e482663 100644
--- a/ran.py
+++ b/ran.py
@@ -77,6 +77,11 @@ def __init__(self, args):
         if args.timing_advance is not None:
             self.conf["timing_advance"] = args.timing_advance
 
+        # get extra args
+        self.oai_extra_args = []
+        if self.args.oai_extra_args:
+            self.oai_extra_args = self.args.oai_extra_args.split(' ')
+
         self.set_ips()
         try:
             os.remove('/root/last_log')
@@ -194,6 +199,8 @@ def run_gnb(self, type):
         if self.args.gdb > 0:
             # gdb override numa
             pre_path += ['gdb', '--args']
+        if self.args.cores:
+            pre_path += ['taskset', '-ca', self.args.cores]
         executable = [f'{OAI_PATH}cmake_targets/ran_build/build/nr-softmodem']
         oai_args = ['-O', f'{self.config_file}', '--usrp-tx-thread-config', '1']
         if self.prb >= 106 and self.numerology == 1:
@@ -229,8 +236,13 @@ def run_gnb(self, type):
         oai_args += ['--T_stdout', '2',
                      '--gNBs.[0].do_SRS', '0']
 
+        # Add any additional extra args passed
+        if self.oai_extra_args:
+            oai_args += self.oai_extra_args
+
         # Set F1 parameters
         oai_args += f1_cmd_args
+
         self.cmd_stored = pre_path + executable + oai_args
         if self.execute:
             command_to_run = f"""{' '.join(self.cmd_stored)}  2>&1 | tee ~/mylogs/gNB-$(date +"%m%d%H%M").log | tee ~/last_log"""