From 036f81fce9d4f732f62ec270101c87fea9882ad0 Mon Sep 17 00:00:00 2001
From: JZ-LIANG <38102074+JZ-LIANG@users.noreply.github.com>
Date: Tue, 15 Jun 2021 18:13:47 +0800
Subject: [PATCH] bugfix: param init with fill constant str_value (#33381)
 (#33472)

---
 python/paddle/fluid/initializer.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/python/paddle/fluid/initializer.py b/python/paddle/fluid/initializer.py
index 5b2010f3409..54ba5f22e53 100644
--- a/python/paddle/fluid/initializer.py
+++ b/python/paddle/fluid/initializer.py
@@ -152,6 +152,7 @@ class ConstantInitializer(Initializer):
             out_dtype = var.dtype
             out_var = var
 
+        # fill constant should set the "str_value" to preserve precision
         op = block.append_op(
             type="fill_constant",
             outputs={"Out": out_var},
@@ -159,6 +160,7 @@ class ConstantInitializer(Initializer):
                 "shape": var.shape,
                 "dtype": int(out_dtype),
                 "value": float(self._value),
+                'str_value': str(float(self._value)),
                 'force_cpu': self._force_cpu
             },
             stop_gradient=True)
-- 
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