fix cost

Laicheng0830 · Laicheng0830 · commit 2006b6ce0aec · 2021-06-25T15:38:22.000+08:00
diff --git a/tensorlayer/cost/mindspore_cost.py b/tensorlayer/cost/mindspore_cost.py
@@ -51,7 +51,7 @@ def softmax_cross_entropy_with_logits(output, target):
 
     """
 
-    outputs = nn.SoftmaxCrossEntropyWithLogits(sparse=True)(output, target)
+    outputs = nn.SoftmaxCrossEntropyWithLogits(sparse=True, reduction='mean')(output, target)
     return outputs
 
 
