[misc] solve booster hang by rename the variable

tests/test_moe/test_moe_ep_tp.py

@@ -3,14 +3,13 @@ from copy import deepcopy
 import pytest
 import torch
 import torch.distributed as dist
-from torch.nn.parallel import DistributedDataParallel as DDP
 from transformers.models.mixtral.configuration_mixtral import MixtralConfig
 from transformers.models.mixtral.modeling_mixtral import MixtralModel
 
 import colossalai
 from colossalai.booster.booster import Booster
-from colossalai.booster.plugin.moe_hybrid_parallel_plugin import MoeHybridParallelPlugin
 from colossalai.booster.plugin import HybridParallelPlugin
+from colossalai.booster.plugin.moe_hybrid_parallel_plugin import MoeHybridParallelPlugin
 from colossalai.testing import parameterize, rerun_if_address_is_in_use, spawn
 from colossalai.testing.random import seed_all
 from tests.test_moe.moe_utils import loose_close
@@ -18,7 +17,7 @@ from tests.test_moe.moe_utils import loose_close
 NUM_BATCH = 4
 NUM_TOK_PER_BATCH, NUM_EXPERTS = 7, 4
 HIDDEN_SIZE_PER_HEAD = 4
-NUM_HEADS=2
+NUM_HEADS = 4
 TOP_K = 2
 
 
@@ -56,19 +55,14 @@ def run_zero_with_original_model(stage: int, ep_size: int, tp_size: int=1):
 
     zero_model = deepcopy(torch_model).to(dtype)
     zero_optimizer = torch.optim.SGD(zero_model.parameters(), lr=1)
-    booster = Booster(
+    moe_booster = Booster(
         plugin=MoeHybridParallelPlugin(
-            tp_size=tp_size,
-            pp_size=1,
-            ep_size=ep_size,
-            zero_stage=stage,
-            overlap_communication=False,
-            initial_scale=1
+            tp_size=tp_size, pp_size=1, ep_size=ep_size, zero_stage=stage, overlap_communication=False, initial_scale=1
         )
     )
-    zero_model, zero_optimizer, _, _, _ = booster.boost(zero_model, zero_optimizer)
+    zero_model, zero_optimizer, _, _, _ = moe_booster.boost(zero_model, zero_optimizer)
 
-    booster = Booster(
+    hybird_booster = Booster(
         plugin=HybridParallelPlugin(
             tp_size=tp_size,
             pp_size=1,
@@ -77,8 +71,9 @@ def run_zero_with_original_model(stage: int, ep_size: int, tp_size: int=1):
             initial_scale=1,
         )
     )
-    hybrid_model, hybrid_optimizer, _, _, _ = booster.boost(torch_model, torch.optim.SGD(torch_model.parameters(), lr=1))
-
+    hybrid_model, hybrid_optimizer, _, _, _ = hybird_booster.boost(
+        torch_model, torch.optim.SGD(torch_model.parameters(), lr=1)
+    )
     # create different input
     seed_all(1453 + rank)
 
@@ -86,7 +81,9 @@ def run_zero_with_original_model(stage: int, ep_size: int, tp_size: int=1):
     zero_model.train()
     for _ in range(2):
         # zero-dp forward
-        input_data = torch.rand(NUM_BATCH, NUM_TOK_PER_BATCH, HIDDEN_SIZE_PER_HEAD * NUM_HEADS, requires_grad=True).cuda()
+        input_data = torch.rand(
+            NUM_BATCH, NUM_TOK_PER_BATCH, HIDDEN_SIZE_PER_HEAD * NUM_HEADS, requires_grad=True
+        ).cuda()
         zero_output = zero_model(inputs_embeds=input_data.to(dtype)).last_hidden_state.mean()
         # zero-dp backward
         zero_optimizer.backward(zero_output)