fix split_var=False

python/paddle/fluid/transpiler/distribute_transpiler.py

@@ -31,6 +31,7 @@ Steps to transpile pserver:
 from __future__ import print_function
 
 import math
+import random
 import numpy as np
 
 from ps_dispatcher import RoundRobin, HashName, PSDispatcher
@@ -196,6 +197,9 @@ class DistributeTranspiler(object):
         #       fc_b@GRAD_trainer_0, fc_b@GRAD_trainer_1 --> pserver2
         # shuffle the map will avoid the uneven distribution above
         grad_var_mapping_items = self.grad_var_mapping.items()
+        if not slice_var_up:
+            random.seed(self.trainer_num)
+            random.shuffle(grad_var_mapping_items)
 
         for orig_varname, splited_vars in grad_var_mapping_items:
             eplist = ps_dispatcher.dispatch(splited_vars)