upgrade hccl_buffer size

Signed-off-by: wangli <wangli858794774@gmail.com>

Author: Potabk

tests/e2e/multicard/test_data_parallel.py

@@ -27,6 +27,8 @@
 
 import pytest
 
+os.environ["HCCL_BUFFSIZE"] = 500
+
 MODELS = ["Qwen/Qwen3-0.6B", "Qwen/Qwen3-30B-A3B"]
 
 

tests/e2e/multicard/test_external_launcher.py

@@ -29,6 +29,8 @@
 import pytest
 import torch_npu
 
+os.environ["HCCL_BUFFSIZE"] = 500
+
 MODELS = ["Qwen/Qwen3-0.6B"]
 MOE_MODELS = ["Qwen/Qwen3-30B-A3B"]
 DEVICE_NAME = torch_npu.npu.get_device_name(0)[:10]