diff --git a/dags/test-train-pytorch.py b/dags/test-train-pytorch.py
index e388d1c..7429a20 100644
--- a/dags/test-train-pytorch.py
+++ b/dags/test-train-pytorch.py
@@ -44,7 +44,7 @@ def run_training_node_func(rank, world_size):
   os.dup2(sys.stdout.fileno(), sys.stderr.fileno())
 
   # CRITICAL: Set NCCL environment variables BEFORE importing torch
-  os.environ['NCCL_DEBUG'] = 'INFO'
+  os.environ['NCCL_DEBUG'] = 'TRACE'
   os.environ['NCCL_TIMEOUT'] = str(NCCL_TIMEOUT)
   os.environ['TORCH_NCCL_BLOCKING_WAIT'] = '1'
   os.environ['NCCL_IB_DISABLE'] = '0'  # Enable InfiniBand