diff --git a/tests/test_core/test_pipeline.py b/tests/test_core/test_pipeline.py
index 11f98e1..6857b35 100644
--- a/tests/test_core/test_pipeline.py
+++ b/tests/test_core/test_pipeline.py
@@ -47,7 +47,19 @@ class MlpModel(nn.Module):
         self.linear1 = nn.Linear(4, 8)
         self.linear2 = nn.Linear(8, 8)
         self.linear3 = nn.Linear(8, 8)
-        self.linear4 = nn.Linear(8, 4)
+        self.linear4 = nn.Linear(8, 8)
+        self.linear5 = nn.Linear(8, 8)
+        self.linear6 = nn.Linear(8, 8)
+        self.linear7 = nn.Linear(8, 8)
+        self.linear8 = nn.Linear(8, 8)
+        self.linear9 = nn.Linear(8, 8)
+        self.linear10 = nn.Linear(8, 8)
+        self.linear11 = nn.Linear(8, 8)
+        self.linear12 = nn.Linear(8, 8)
+        self.linear13 = nn.Linear(8, 8)
+        self.linear14 = nn.Linear(8, 8)
+        self.linear15 = nn.Linear(8, 8)
+        self.linear16 = nn.Linear(8, 4)
 
     def forward(self, hidden_states=None, cu_seqlens=None, input_ids=None, indexes=None, inference_params=None):
         print('MLP:', input_ids, input_ids.dtype, flush=True)
@@ -55,13 +67,26 @@ class MlpModel(nn.Module):
         input_ids = self.linear2(input_ids)
         input_ids = self.linear3(input_ids)
         input_ids = self.linear4(input_ids)
+        input_ids = self.linear5(input_ids)
+        input_ids = self.linear6(input_ids)
+        input_ids = self.linear7(input_ids)
+        input_ids = self.linear8(input_ids)
+        input_ids = self.linear9(input_ids)
+        input_ids = self.linear10(input_ids)
+        input_ids = self.linear11(input_ids)
+        input_ids = self.linear12(input_ids)
+        input_ids = self.linear13(input_ids)
+        input_ids = self.linear14(input_ids)
+        input_ids = self.linear15(input_ids)
+        input_ids = self.linear16(input_ids)
         return input_ids
     
 config = Config(
     dict(
-        parallel=dict(zero1=1, pipeline=dict(size=2, interleaved_overlap=False), sequence_parallel=False, tensor=1),
+        HIDDEN_SIZE=4,
+        parallel=dict(zero1=1, pipeline=dict(size=8, interleaved_overlap=False), sequence_parallel=False, tensor=1),
         model_type="INTERNLM",
-        data=dict(seq_len=2048, micro_num=1, micro_bsz=1, pack_sample_into_one=False, min_length=0, total_steps=9999),
+        data=dict(seq_len=4, micro_num=4, micro_bsz=1, pack_sample_into_one=False, min_length=0, total_steps=9999),
         model=dict(
             dtype=torch.bfloat16,
         ),
@@ -117,7 +142,7 @@ def build_environment(rank, world_size):
     os.environ["LOCAL_RANK"] = str(rank)
     os.environ["WORLD_SIZE"] = str(world_size)
     os.environ["MASTER_ADDR"] = "127.0.0.1"
-    os.environ["MASTER_PORT"] = "12345"
+    os.environ["MASTER_PORT"] = "44444"
     torch.cuda.empty_cache()
     # launcher="torch"
     internlm.launch_from_torch(config=config, seed=1024)
@@ -155,17 +180,28 @@ def seed_all(seed, cuda_deterministic=False):
 
 
 def exam_pipeline_parallel(args):
+    import os
     rank, world_size = args
-    dtype = torch.bfloat16
+    dtype = torch.float32
     
     build_environment(rank, world_size)
+    local_rank = int(os.environ["LOCAL_RANK"])
+    print('rank_com:', rank, local_rank)
+    device = torch.device(f"cuda:{local_rank}")
+    # print('device_id:', device)
+    # torch.cuda.set_device(device)
     seed_all(1024)
     
-    torch_model = MlpModel().cuda()
+    torch_model = MlpModel().to(device)
     pp_model = copy.deepcopy(torch_model).to(dtype)
     
     
     tensor_shape = get_tensor_shape()
+    tensor_shape = (
+                    4,
+                    4,
+                )
+    # print('tensor_shape:', tensor_shape)
     
     scatter_gather = gpc.is_initialized(ParallelMode.TENSOR)
     
@@ -179,7 +215,8 @@ def exam_pipeline_parallel(args):
             skip=False
         ),
     ]
-    
+
+    gpc.config.NUM_MICRO_BATCHES = gpc.config.data.micro_num
     scheduler = PipelineScheduler(
         data_process_func=None,
         num_microbatches=gpc.config.data.micro_num,
@@ -198,7 +235,7 @@ def exam_pipeline_parallel(args):
         lr_scheduler=lr_scheduler,
         beta2_scheduler=beta2_scheduler,
         criterion=criterion,
-        gradient_handlers=[],
+        gradient_handlers= [dict(type="PipelineSharedModuleGradientHandler")],
         clip_grad_norm=gpc.config.hybrid_zero_optimizer.get("clip_grad_norm", 0.0),
     )
     
@@ -206,10 +243,10 @@ def exam_pipeline_parallel(args):
     engine.train()
     engine.zero_grad()
     
-    input_list = [{'input_ids':torch.tensor([[0,1,2,3]]).cuda().to(dtype)},
-                  torch.tensor([[1]]).cuda().to(torch.int64)]
-    torch_input = torch.tensor([[0,1,2,3]]).cuda().to(torch.float32)
-    torch_label = torch.tensor([[1]]).cuda().to(torch.int64)
+    input_list = [{'input_ids':torch.tensor([[0,1,2,3],[0,1,2,3],[0,1,2,3],[0,1,2,3]]).to(device).to(dtype)},
+                  torch.tensor([[1],[1],[1],[1]]).to(device).to(torch.int64)]
+    torch_input = torch.tensor([[0,1,2,3]]).to(device).to(torch.float32)
+    torch_label = torch.tensor([[1]]).to(device).to(torch.int64)
     # print('label_shape:', input_list[1].shape)
     # input_list = [{'input_ids':torch.rand(1, 4).cuda()}, torch.rand(1, 4).cuda()]
     # input = input_list[0]