Created by: shuoyin

hi 我下边这个程序，定义了两个Program，分别在两个Program里定义了一个FC层，名字相同但是输出不同。我理解这两个program里的变量应该是互相不影响的，所以两个program的输出应该也是不同的（虽然他们名字一样），但是实际输出并不是。

import paddle.fluid as fluid
import numpy as np 

prog1 = fluid.Program()
start_prog1 = fluid.Program()
with fluid.program_guard(prog1, start_prog1):
    with fluid.unique_name.guard():
        x = fluid.layers.data(name='x', shape=[-1, 4], dtype='float32')
        y1 = fluid.layers.fc(x, size=1) 

prog2 = fluid.Program()
start_prog2 = fluid.Program()
with fluid.program_guard(prog2, start_prog2):
    with fluid.unique_name.guard():
        x = fluid.layers.data(name='x', shape=[-1, 4], dtype='float32')
        y2 = fluid.layers.fc(x, size=2) 

place = fluid.CPUPlace()
exe = fluid.Executor(place)
exe.run(start_prog1)
exe.run(start_prog2)

feed_x = np.random.rand(3,4).astype('float32')
print feed_x
print exe.run(prog1, feed={'x':feed_x}, fetch_list=[y1])[0]
print exe.run(prog2, feed={'x':feed_x}, fetch_list=[y2])[0]

输出如下：

[[0.15301736 0.47217232 0.43869737 0.00271489]
 [0.4223052  0.5610767  0.5118477  0.180553  ]
 [0.0171026  0.61575365 0.324812   0.45415097]]
[[-0.45586294  0.14294818]
 [-0.71337724  0.3381655 ]
 [-0.23540677  0.6197809 ]]
[[-0.45586294  0.14294818]
 [-0.71337724  0.3381655 ]
 [-0.23540677  0.6197809 ]]

看起来prog2把prog1覆盖了。请问这是什么情况，要怎么解决使得两个program各自分别输出互不影响啊 谢谢