Tensorflow Initialize Variable Error

As you all know there are various ways to initialize your variables in tensorflow. I tried some stuff in combination with a graph definition. See the code below. def Graph1a():

Solution 1:

The problem is that the global_variables_initializer needs to be associated with the same graph as the session. In Graph1c this happens because the global_variables_initializer is inside the scope of the with statement of the session. To get Graph1a to work it needs to be rewritten like this

def Graph1a():
    g1 = tf.Graph()
    with g1.as_default() as g:
        matrix1 = tf.constant([[3., 3.]])
        matrix2 = tf.constant([[2.],[2.]])
        product = tf.matmul( matrix1, matrix2, name = "product")
        init_op = tf.global_variables_initializer()

    sess = tf.Session( graph = g )
    sess.run(init_op)
    return product