remove no_grad for visualize_func

HydrogenSulfate · HydrogenSulfate · commit 55b5091a5b80 · 2023-05-22T11:57:24.000Z
diff --git a/ppsci/solver/visu.py b/ppsci/solver/visu.py
@@ -21,7 +21,6 @@
 from ppsci.utils import misc
 
 
-@paddle.no_grad()
 def visualize_func(solver, epoch_id: int):
     """Visualization program
 
