Exemple #1
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 public static Session Session(Graph graph)
 {
     return(new Session(graph));
 }
Exemple #2
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        public static void _run_using_default_session(Operation operation, FeedItem[] feed_dict, Graph graph, Session session)
        {
            if (session == null)
            {
                session = get_default_session();
                if (session == null)
                {
                    throw new ValueError("Cannot execute operation using `run()`: No default " +
                                         "session is registered. Use `with " +
                                         "sess.as_default():` or pass an explicit session to " +
                                         "`run(session=sess)`");
                }
            }

            if (session.graph != graph)
            {
                throw new ValueError("Cannot use the default session to execute operation: " +
                                     "the operation's graph is different from the " +
                                     "session's graph. Pass an explicit session to " +
                                     "run(session=sess).");
            }

            session.run(operation, feed_dict);
        }
Exemple #3
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        /// <summary>
        /// Uses the default session to evaluate one or more tensors.
        /// </summary>
        /// <param name="tensors">A single Tensor, or a list of Tensor objects.</param>
        /// <param name="feed_dict">
        /// A dictionary that maps Tensor objects (or tensor names) to lists,
        /// numpy ndarrays, TensorProtos, or strings.
        /// </param>
        /// <param name="graph">The graph in which the tensors are defined.</param>
        /// <param name="session">A different session to use to evaluate "tensors".</param>
        /// <returns>
        /// Either a single numpy ndarray if "tensors" is a single tensor; or a list
        /// of numpy ndarrays that each correspond to the respective element in
        /// "tensors".
        /// </returns>
        public static NDArray _eval_using_default_session(Tensor tensor, FeedItem[] feed_dict, Graph graph, Session session = null)
        {
            if (session == null)
            {
                session = get_default_session();

                if (session == null)
                {
                    throw new ValueError("Cannot evaluate tensor using `eval()`: No default " +
                                         "session is registered. Use `with " +
                                         "sess.as_default()` or pass an explicit session to " +
                                         "`eval(session=sess)`");
                }

                if (session.graph != graph)
                {
                    throw new ValueError("Cannot use the default session to evaluate tensor: " +
                                         "the tensor's graph is different from the session's " +
                                         "graph. Pass an explicit session to " +
                                         "`eval(session=sess)`.");
                }
            }
            else
            {
                if (session.graph != graph)
                {
                    throw new ValueError("Cannot use the default session to evaluate tensor: " +
                                         "the tensor's graph is different from the session's " +
                                         "graph. Pass an explicit session to " +
                                         "`eval(session=sess)`.");
                }
            }

            return(session.run(tensor, feed_dict));
        }
Exemple #4
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 public static OpDef _get_op_def(Graph graph, string type)
 {
     return(graph.GetOpDef(type));
 }
Exemple #5
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 public static Graph set_default_graph(Graph graph)
 {
     //TODO: original source does not have a 'set_default_graph' and indicates there should be a _default_graph_stack!
     default_graph_stack.set_controller(graph);
     return(default_graph_stack.get_controller());
 }
Exemple #6
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 public string write_graph(Graph graph, string logdir, string name, bool as_text = true)
 => graph_io.write_graph(graph, logdir, name, as_text);