diff --git a/examples/v1/config/rl_dapo_math.py b/examples/v1/config/rl_dapo_math.py
index 85fc22283..7c4369b1b 100644
--- a/examples/v1/config/rl_dapo_math.py
+++ b/examples/v1/config/rl_dapo_math.py
@@ -28,7 +28,7 @@
 # basic settings
 experimental_name = "dapo_math"
 total_epochs = 1
-train_batch_size = 512
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 512))
 prompt_repeat_k = 16
 rollout_tp_size = 1
 rollout_ep_size = 1
diff --git a/examples/v1/config/rl_dapo_math_async.py b/examples/v1/config/rl_dapo_math_async.py
index f62b3712f..129763ef7 100644
--- a/examples/v1/config/rl_dapo_math_async.py
+++ b/examples/v1/config/rl_dapo_math_async.py
@@ -28,7 +28,7 @@
 # basic settings
 experimental_name = "dapo_math"
 total_epochs = 1
-train_batch_size = 512
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 512))
 prompt_repeat_k = 16
 rollout_tp_size = 1
 rollout_ep_size = 1
diff --git a/examples/v1/config/rl_dapo_math_async_filter.py b/examples/v1/config/rl_dapo_math_async_filter.py
index d43ee9e6a..6b99b9a1b 100644
--- a/examples/v1/config/rl_dapo_math_async_filter.py
+++ b/examples/v1/config/rl_dapo_math_async_filter.py
@@ -28,7 +28,7 @@
 # basic settings
 experimental_name = "dapo_math"
 total_epochs = 1
-train_batch_size = 512
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 512))
 prompt_repeat_k = 16
 rollout_tp_size = 1
 rollout_ep_size = 1
diff --git a/examples/v1/config/rl_grpo_geo3k_judge.py b/examples/v1/config/rl_grpo_geo3k_judge.py
index 5f37d6d93..9c01d901a 100644
--- a/examples/v1/config/rl_grpo_geo3k_judge.py
+++ b/examples/v1/config/rl_grpo_geo3k_judge.py
@@ -37,7 +37,7 @@
 total_train_steps = 45  # TODO: total_epoch
 evaluate_step = 45
 train_optimizer_steps = 4
-train_batch_size = 1024
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 1024))
 prompt_repeat_k = 5
 rollout_tp_size = 1
 rollout_ep_size = 1
diff --git a/examples/v1/config/rl_grpo_gsm8k_async.py b/examples/v1/config/rl_grpo_gsm8k_async.py
index b804932c3..37f76ad9b 100644
--- a/examples/v1/config/rl_grpo_gsm8k_async.py
+++ b/examples/v1/config/rl_grpo_gsm8k_async.py
@@ -37,7 +37,7 @@
 total_train_steps = 45
 evaluate_step = 45
 train_optimizer_steps = 1
-train_batch_size = 64 * train_optimizer_steps
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 64 * train_optimizer_steps))
 prompt_repeat_k = 5
 rollout_tp_size = 1
 rollout_ep_size = 1
diff --git a/examples/v1/config/rl_grpo_gsm8k_judge.py b/examples/v1/config/rl_grpo_gsm8k_judge.py
index 021344f6b..c7c3255f5 100644
--- a/examples/v1/config/rl_grpo_gsm8k_judge.py
+++ b/examples/v1/config/rl_grpo_gsm8k_judge.py
@@ -37,7 +37,7 @@
 total_train_steps = 45
 evaluate_step = 45
 train_optimizer_steps = 1
-train_batch_size = 64 * train_optimizer_steps
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 64 * train_optimizer_steps))
 prompt_repeat_k = 5
 rollout_tp_size = 1
 rollout_ep_size = 1
diff --git a/examples/v1/config/rl_grpo_gsm8k_with_tool.py b/examples/v1/config/rl_grpo_gsm8k_with_tool.py
index 779716442..f535a76a4 100644
--- a/examples/v1/config/rl_grpo_gsm8k_with_tool.py
+++ b/examples/v1/config/rl_grpo_gsm8k_with_tool.py
@@ -37,7 +37,7 @@
 total_train_steps = 45
 evaluate_step = 45
 train_optimizer_steps = 1
-train_batch_size = 64 * train_optimizer_steps
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 64 * train_optimizer_steps))
 prompt_repeat_k = 5
 rollout_tp_size = 1
 rollout_ep_size = 1
diff --git a/examples/v1/config/rl_multi_task_gsm8k_dapo_math.py b/examples/v1/config/rl_multi_task_gsm8k_dapo_math.py
index dc4eee36d..70fc2d183 100644
--- a/examples/v1/config/rl_multi_task_gsm8k_dapo_math.py
+++ b/examples/v1/config/rl_multi_task_gsm8k_dapo_math.py
@@ -58,7 +58,7 @@
 total_train_steps = 50
 evaluate_step = 5
 train_optimizer_steps = 8
-train_batch_size = 128
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 128))
 gsm8k_task_weight = float(os.environ.get("GSM8K_TASK_WEIGHT", "1.0"))
 dapo_task_weight = float(os.environ.get("DAPO_TASK_WEIGHT", "1.0"))
 rollout_tp_size = 1
diff --git a/examples/v1/config/rl_qwen3p5_vl_35B_grpo_mixdata.py b/examples/v1/config/rl_qwen3p5_vl_35B_grpo_mixdata.py
index 1ed66bbb2..a55596218 100644
--- a/examples/v1/config/rl_qwen3p5_vl_35B_grpo_mixdata.py
+++ b/examples/v1/config/rl_qwen3p5_vl_35B_grpo_mixdata.py
@@ -40,7 +40,7 @@ def _as_list(value):
 # basic settings
 experimental_name = "grpo_mix_data"
 total_epochs = 15
-global_batch_size = 256
+train_batch_size = int(os.environ.get("TRAIN_BATCH_SIZE", 256))
 prompt_repeat_k = 8
 rollout_tp_size = 2
 rollout_ep_size = 1
@@ -253,7 +253,7 @@ def _as_list(value):
     evaluator_config=EvaluatorConfig(compute_metric_func=None),
     load_from=model_path,
     total_epochs=total_epochs,
-    train_batch_size=global_batch_size,
+    train_batch_size=train_batch_size,
     advantage_estimator_config=GRPOAdvantageConfig(eps=1e-8),
     enable_evaluate=enable_evaluate,
     enable_initial_evaluate=False,
diff --git a/examples/v1/scripts/run_rl.sh b/examples/v1/scripts/run_rl.sh
index 53219cbe9..1df15d578 100644
--- a/examples/v1/scripts/run_rl.sh
+++ b/examples/v1/scripts/run_rl.sh
@@ -18,9 +18,19 @@ if [ $ACCELERATOR != "GPU" ] && [ $ACCELERATOR != "NPU" ]; then
   exit 1
 fi
 if [ "$ACCELERATOR" = "NPU" ]; then
-  ACCELERATOR_PER_NODE=${7:-16}
+  accelerator_per_node=${7:-16}
 else
-  ACCELERATOR_PER_NODE=${7:-8}
+  if [ -n "${CUDA_VISIBLE_DEVICES:-}" ]; then
+    IFS=',' read -ra visible_devices <<< "${CUDA_VISIBLE_DEVICES}"
+    accelerator_per_node=${#visible_devices[@]}
+  else
+    accelerator_per_node=${7:-8}
+  fi
+fi
+export ACCELERATOR
+RAY_ACCELERATOR_ARGS=()
+if [ "$ACCELERATOR" = "GPU" ]; then
+  RAY_ACCELERATOR_ARGS=(--num-gpus="$accelerator_per_node")
 fi
 
 ulimit -n 65536  # OSError: [Errno 24] Too many open files
@@ -87,6 +97,8 @@ fi
 # 2. Launch Ray cluster
 # 根据 NODE_COUNT 分配 num_cpus, 防止内存OOM
 node_count=${NODE_COUNT:-1}
+expected_accelerator_count=$((node_count * accelerator_per_node))
+export XTUNER_RL_NUM_WORKERS=${XTUNER_RL_NUM_WORKERS:-$expected_accelerator_count}
 
 WORK_DIR=$(realpath "$WORK_DIR")
 if [ "$RAY_RANK" -eq 0 ]; then
@@ -101,6 +113,7 @@ if [ "$RAY_RANK" -eq 0 ]; then
     --dashboard-port=$RAY_DASHBOARD_PORT \
     --include-dashboard=true \
     --disable-usage-stats \
+    "${RAY_ACCELERATOR_ARGS[@]}" \
     --temp-dir="/tmp/ray_log/"
 else
   while true; do
@@ -112,12 +125,11 @@ else
       sleep 2
     fi
   done
-  ray start --address="$RAY_MASTER_ADDR:$RAY_HEAD_PORT" --block --disable-usage-stats
+  ray start --address="$RAY_MASTER_ADDR:$RAY_HEAD_PORT" --block --disable-usage-stats "${RAY_ACCELERATOR_ARGS[@]}"
 fi
 
 while true; do
   result=$(ray status | grep ${ACCELERATOR} | cut -d ' ' -f2 | cut -d '/' -f2)
-  expected_accelerator_count=$((node_count * ${ACCELERATOR_PER_NODE}))
   if [ "$result" = "$expected_accelerator_count.0" ]; then
     break
   else
@@ -133,4 +145,5 @@ LOG_FILE="${WORK_DIR}/training_log_${current_time}.txt"
 
 python xtuner/v1/train/cli/rl.py \
     --config $CONFIG_PATH \
+    --num-workers $XTUNER_RL_NUM_WORKERS \
     2>&1 | tee -a "${WORK_DIR}/training_log_${current_time}.txt"
diff --git a/xtuner/v1/rl/trainer/worker.py b/xtuner/v1/rl/trainer/worker.py
index bbfbd2a8c..c073610a3 100644
--- a/xtuner/v1/rl/trainer/worker.py
+++ b/xtuner/v1/rl/trainer/worker.py
@@ -642,6 +642,10 @@ def fit(self, data_batches: list[WorkerInputItem], rollout_idx: int) -> WorkerLo
         if self.rank == 0:
             self.logger.info(logger_msg)
 
+        only_calc_mismatch_ratio = os.environ.get("ONLY_CALC_MISMATCH_RATIO", "0") == "1"
+        if only_calc_mismatch_ratio:
+            return worker_log_item
+
         # compute reference logprobs
         ref_logprobs_list: list[torch.Tensor] | None = None
         if self._has_ref:
diff --git a/xtuner/v1/rl/utils/ray_accelerator_worker.py b/xtuner/v1/rl/utils/ray_accelerator_worker.py
index 2bfd9e9e5..a7d52d981 100644
--- a/xtuner/v1/rl/utils/ray_accelerator_worker.py
+++ b/xtuner/v1/rl/utils/ray_accelerator_worker.py
@@ -91,6 +91,11 @@ def model_post_init(self, __context: Any) -> None:
             # NOTE: Ascend 910 has 16 NPUs per node
             self.num_accelerators_per_node = 16
 
+    def validate_available_resources(self) -> None:
+        """Validate resources against the current Ray cluster.
+
+        Keep this out of model_post_init so CLI overrides can adjust loaded config objects before resource checks run.
+        """
         assert ray.is_initialized(), "Ray must be initialized before creating AcceleratorResourcesConfig."
 
         available_resources = ray.available_resources()
@@ -283,6 +288,7 @@ def build_placement_group(resources_config: AcceleratorResourcesConfig, name="tr
         Returns:
             PlacementGroup: The created Ray PlacementGroup.
         """
+        resources_config.validate_available_resources()
         bundles = [
             {
                 "CPU": resources_config.num_cpus_per_worker,
diff --git a/xtuner/v1/train/cli/rl.py b/xtuner/v1/train/cli/rl.py
index 9b7dfdfd8..5fd57843e 100644
--- a/xtuner/v1/train/cli/rl.py
+++ b/xtuner/v1/train/cli/rl.py
@@ -46,7 +46,7 @@ def main(
     cfg = Config.fromfile(config)
     if work_dir is not None:
         cfg.trainer.work_dir = work_dir
-    if num_workers is not None:
+    if num_workers is not None and hasattr(cfg.trainer, "resources"):
         cfg.trainer.resources.num_workers = num_workers
     trainer = cfg.trainer.build()
     trainer.fit()
diff --git a/xtuner/v1/utils/track_rl_mem.py b/xtuner/v1/utils/track_rl_mem.py
index 230a906fb..d09edb83a 100644
--- a/xtuner/v1/utils/track_rl_mem.py
+++ b/xtuner/v1/utils/track_rl_mem.py
@@ -24,6 +24,16 @@ def _get_current_node_id() -> str:
     return str(node_id)
 
 
+def _get_current_node_ray_gpu_resources(current_node_id: str) -> float | None:
+    for node in ray.nodes():
+        node_id = _get_actor_value(node, "NodeID", "node_id", "NodeId")
+        if str(node_id) != current_node_id:
+            continue
+        resources = node.get("Resources") or node.get("resources") or {}
+        return float(resources.get("GPU", 0))
+    return None
+
+
 def _get_actor_value(actor_info, *keys):
     for key in keys:
         value = actor_info.get(key)
@@ -174,7 +184,10 @@ def monitor_actor_memory(work_dir: str, interval: int = 60):
     finally:
         pynvml.nvmlShutdown()
 
-    print(f"当前节点 GPU 数量: {local_gpus}")
+    local_ray_gpus = _get_current_node_ray_gpu_resources(current_node_id)
+    print(f"当前节点物理 GPU 数量(NVML): {local_gpus}")
+    if local_ray_gpus is not None:
+        print(f"当前节点 Ray 配置 GPU resource 数量: {local_ray_gpus:g}")
     tb_writer_list = [TensorboardWriter(log_dir=f"{work_dir}/tb/{rank}") for rank in range(max(local_gpus, 1))]
 
     count = 0