tensorflow 獲取checkpoint中的變數列表例項
阿新 • • 發佈:2020-02-12
方式1:靜態獲取,通過直接解析checkpoint檔案獲取變數名及變數值
通過
reader = tf.train.NewCheckpointReader(model_path)
或者通過:
from tensorflow.python import pywrap_tensorflow reader = pywrap_tensorflow.NewCheckpointReader(model_path)
程式碼:
model_path = "./checkpoints/model.ckpt-75000" ## 下面兩個reader作用等價 #reader = pywrap_tensorflow.NewCheckpointReader(model_path) reader = tf.train.NewCheckpointReader(model_path) ## 用reader獲取變數字典,key是變數名,value是變數的shape var_to_shape_map = reader.get_variable_to_shape_map() for var_name in var_to_shape_map.keys(): #用reader獲取變數值 var_value = reader.get_tensor(var_name) print("var_name",var_name) print("var_value",var_value)
方式2:動態獲取,先載入checkpoint模型,然後用graph.get_tensor_by_name()獲取變數值
程式碼 (注意:要先在指令碼中構建model中對應的變數及scope):
model_path = "./checkpoints/model.ckpt-75000" config = tf.ConfigProto() config.gpu_options.allow_growth = True with tf.Session(config=config) as sess: ## 獲取待載入的變數列表 trainable_vars = tf.trainable_variables() g_vars = tf.get_collection(tf.GraphKeys.GLOBAL_VARIABLES,scope="generator") d_vars = tf.get_collection(tf.GraphKeys.GLOBAL_VARIABLES,scope='discriminator') flow_vars = tf.get_collection(tf.GraphKeys.GLOBAL_VARIABLES,scope='flow_net') var_restore = g_vars + d_vars ## 僅載入目標變數 loader = tf.train.Saver(var_restore) loader.restore(sess,model_path) ## 顯示載入的變數值 graph = tf.get_default_graph() for var in var_restore: tensor = graph.get_tensor_by_name(var.name) print("=======變數名=======",tensor) print("-------變數值-------",sess.run(tensor))
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