diff --git a/scripts/simulate_multi_node_diloco.sh b/scripts/simulate_multi_node_diloco.sh
index a8917302..4a69912a 100755
--- a/scripts/simulate_multi_node_diloco.sh
+++ b/scripts/simulate_multi_node_diloco.sh
@@ -53,17 +53,18 @@ trap cleanup SIGINT
 mkdir -p logs
 
 export GLOBAL_ADDR=localhost
-export GLOBAL_PORT=1234
+export GLOBAL_PORT=${GLOBAL_PORT:-1234}
 export GLOBAL_WORLD_SIZE=$N
+export BASE_PORT=${BASE_PORT:-10001}
 
 for i in $(seq 0 $(($N - 1 )))
 do
     > logs/log$i
-    GLOBAL_UNIQUE_ID=$i GLOBAL_RANK=$i CUDA_VISIBLE_DEVICES=$(get_cuda_devices $NUM_GPU $i) uv run torchrun --nproc_per_node=$NUM_GPU --node-rank 0 --rdzv-endpoint localhost:$((10001 + $i)) --nnodes=1  $@  > logs/log$i.log 2>&1 &
+    GLOBAL_UNIQUE_ID=$i GLOBAL_RANK=$i CUDA_VISIBLE_DEVICES=$(get_cuda_devices $NUM_GPU $i) uv run torchrun --nproc_per_node=$NUM_GPU --node-rank 0 --rdzv-endpoint localhost:$((BASE_PORT + $i)) --nnodes=1  $@  > logs/log$i.log 2>&1 &
     child_pids+=($!)
 done
 
 tail -f logs/log0.log &
 child_pids+=($!)
- 
+
 wait