【发布时间】：2019-08-24 01:36:58
【问题描述】：
我正在尝试在 GPU 上使用 tensorflow 训练网络。但是在训练过程中会抛出这个警告。
我检查了 gpu 的可用内存大小。好像没问题。
E tensorflow/core/common_runtime/executor.cc:623] 执行器未能 > 创建内核。无效参数：默认 AvgPoolingOp 仅支持 设备类型 CPU 上的 NHWC [[{{节点 vgg_src/pool1}} = AvgPool[T=DT_FLOAT, data_format="NCHW", ksize=[1, 1, 2, 2], padding="SAME", strides=[1, 1, 2, 2], _device="/job:localhost/replica:0/task:0/device:GPU:0"] (vgg_src/conv1_2/Relu)]]
虽然我可以正确地训练和运行网络，但我仍然想知道是什么导致了这个问题。我该如何解决这个问题？
--
更新
添加我的模型的代码，这是一个修改后的 vgg-16 网络。
import os
import tensorflow as tf
import numpy as np
import pdb
vgg_mean = [0.485, 0.456, 0.406]
vgg_std = [0.229, 0.224, 0.225]
data = None
dir_path = os.path.dirname(os.path.realpath(__file__))
# dir_path = os.path.normpath(os.path.join(dir_path, os.pardir))
weights_path = os.path.join(dir_path, 'models', 'vgg16_onnx.npy')
class Model():
def __init__(self, vgg16_npy_path=None):
global data
if vgg16_npy_path is None:
path = weights_path
print(path)
if os.path.exists(path):
vgg16_npy_path = path
else:
print("VGG16 weights were not found in the project directory!")
exit(0)
if data is None:
data = np.load(vgg16_npy_path, encoding='latin1')
self.data_dict = data.item()
print("VGG16 weights loaded")
else:
self.data_dict = data.item()
def build(self, bgr_input):
'''notice that opencv load image with bgr order, but the pretrained model is designed for rgb'''
blue, green, red = tf.split(axis=3, num_or_size_splits=3, value=bgr_input)
rgb = tf.concat(axis=3, values=[
(red - vgg_mean[0])/vgg_std[0],
(green - vgg_mean[1])/vgg_std[1],
(blue - vgg_mean[2])/vgg_std[2],
])
self.conv1_1 = self.conv_layer(rgb, "conv1_1")
self.conv1_2 = self.conv_layer(self.conv1_1, "conv1_2")
self.pool1 = self.avg_pool(self.conv1_2, 'pool1')
self.conv2_1 = self.conv_layer(self.pool1, "conv2_1")
self.conv2_2 = self.conv_layer(self.conv2_1, "conv2_2")
self.pool2 = self.avg_pool(self.conv2_2, 'pool2')
self.conv3_1 = self.conv_layer(self.pool2, "conv3_1")
self.conv3_2 = self.conv_layer(self.conv3_1, "conv3_2")
self.conv3_3 = self.conv_layer(self.conv3_2, "conv3_3")
self.pool3 = self.avg_pool(self.conv3_3, 'pool3')
self.conv4_1 = self.conv_layer(self.pool3, "conv4_1")
self.conv4_2 = self.conv_layer(self.conv4_1, "conv4_2")
self.conv4_3 = self.conv_layer(self.conv4_2, "conv4_3")
self.pool4 = self.avg_pool(self.conv4_3, 'pool4')
self.conv5_1 = self.conv_layer(self.pool4, "conv5_1")
self.conv5_2 = self.conv_layer(self.conv5_1, "conv5_2")
self.conv5_3 = self.conv_layer(self.conv5_2, "conv5_3")
self.pool5 = self.avg_pool(self.conv5_3, 'pool5')
self.fc6 = self.fc_layer(self.pool5, 'fc6')
self.fc7 = self.fc_layer(self.fc6, 'fc7')
self.fc8 = self.fc_layer(self.fc7, 'fc8')
self.data_dict = None
def avg_pool(self, bottom, name):
return tf.nn.avg_pool(bottom,
ksize=[1, 2, 2, 1], strides=[1, 2, 2, 1], padding='SAME', name=name)
def max_pool(self, bottom, name):
return tf.nn.max_pool(bottom,
ksize=[1, 2, 2, 1], strides=[1, 2, 2, 1], padding='SAME', name=name)
def conv_layer(self, bottom, name, stride = 1):
with tf.variable_scope(name):
filt = self.get_conv_filter(name)
conv = tf.nn.conv2d(bottom, filt, [1, stride, stride, 1], padding='SAME')
conv_biases = self.get_bias(name)
bias = tf.nn.bias_add(conv, conv_biases)
mean = self.get_mean(name)
variance = self.get_variance(name)
offset = self.get_beta(name)
scale = self.get_gamma(name)
norm = tf.nn.batch_normalization(bias, mean, variance, offset, scale, 1e-20 )
relu = tf.nn.relu(norm)
return relu
def fc_layer(self, bottom, name):
with tf.variable_scope(name):
shape = bottom.get_shape().as_list()
dim = 1
for d in shape[1:]:
dim *= d
x = tf.reshape(bottom, [-1, dim])
weights = self.get_fc_weight(name)
biases = self.get_bias(name)
# Fully connected layer. Note that the '+' operation automatically
# broadcasts the biases.
fc = tf.nn.bias_add(tf.matmul(x, weights), biases)
return fc
def get_mean(self, name):
return tf.constant(self.data_dict[name][4], name = "mean")
def get_variance(self, name):
return tf.constant(self.data_dict[name][5], name = "variance")
def get_gamma(self, name):
return tf.constant(self.data_dict[name][2], name = "gamma")
def get_beta(self, name):
return tf.constant(self.data_dict[name][3], name = "beta")
def get_conv_filter(self, name):
return tf.constant(np.rollaxis(np.rollaxis(np.rollaxis(self.data_dict[name][0], 1), 2), 3), name="filter")
def get_bias(self, name):
return tf.constant(self.data_dict[name][1], name="biases")
def get_fc_weight(self, name):
return tf.constant(np.rollaxis(self.data_dict[name][0], 1), name="weights")
【问题讨论】：
标签： tensorflow gpu