tensorflow-core-framework-graph_def_util.h 2019-06-19 344 tensorflow-core-framework ```cpp #ifndef TENSORFLOW_CORE_FRAMEWORK_GRAPH_DEF_UTIL_H_ #define TENSORFLOW_CORE_FRAMEWORK_GRAPH_DEF_UTIL_H_ #include #include "tensorflow/core/framework/op.h" #include "tensorflow/core/lib/core/status.h" namespace tensorflow { // Forward declare proto so that it's symbols can be removed from .so exports class GraphDef; // Produce a human-readable version of a GraphDef that is more concise // than a text-format proto. string SummarizeGraphDef(const GraphDef& graph_def); // Validates the syntax of a GraphDef provided externally. // // The following is an EBNF-style syntax for GraphDef objects. Note that // Node objects are actually specified as tensorflow::NodeDef protocol buffers, // which contain many other fields that are not (currently) validated. // // Graph = Node * // Node = NodeName, Inputs // Inputs = ( DataInput * ), ( ControlInput * ) // DataInput = NodeName, ( ":", [1-9], [0-9] * ) ? // ControlInput = "^", NodeName // NodeName = [A-Za-z0-9.], [A-Za-z0-9_./] * Status ValidateExternalGraphDefSyntax(const GraphDef& graph_def); // Adds default attributes to NodeDefs in 'graph_def' starting // from the 'node_offset' node in 'graph_def'. // // Default attributes are defined by 'op_registry'. // // Returns OK on success, an error if 'graph_def' has a NodeDef // that cannot be found in 'op_registry'. // // REQUIRES: 'graph_def' and 'op_registry' are not nullptr. Status AddDefaultAttrsToGraphDef(GraphDef* graph_def, const OpRegistryInterface& op_registry, int node_offset); // Same as above, except for the fact that it skips nodes that aren't found in // op_registry if skip_unknown_ops is true. Status AddDefaultAttrsToGraphDef(GraphDef* graph_def, const OpRegistryInterface& op_registry, int node_offset, bool skip_unknown_ops); // Remove attrs from 'graph_def' that have the default value according // to 'producer_op_registry', but don't exist according to // 'consumer_op_registry'. This can allow 'graph_def' to run on the // consumer even if consumer was built at an earlier CL (before an // attr with a default was added). Note that this will not affect // attrs with non-default values, so you must run a // ValidateGraphDef...() function to see if the result is in fact // compatible. If not nullptr, the op/attr pairs that were removed // are added to '*op_attr_removed'. // // Expected usage, for a producer that wants to prepare a graph for // a consumer: // // For each consumer, update 'graph_def': // OpListOpRegistry consumer_op_registry(consumer_server_op_list); // std::unordered_set> op_attr_removed; // TF_RETURN_IF_ERROR(RemoveNewDefaultAttrsFromGraphDef( // &graph_def, consumer_op_registry, *OpRegistry::Global(), // &op_attr_removed)); // // Validate that each consumer can understand the resulting 'graph_def' // TF_RETURN_IF_ERROR(graph::ValidateGraphDefAgainstOpRegistry( // graph_def, consumer_op_registry)); // // Consumer can use 'graph_def', and 'op_attr_removed' summarizes // // what changes had to be made to 'graph_def' for it to work. // // Expected usage, for a consumer that has a graph and a // (optionally-stripped) op_list from a producer (say from a call to // StrippedOpListForGraph(), or in the MetaGraphDef): // OpListOpRegistry producer_op_registry(producer_stripped_op_list); // TF_RETURN_IF_ERROR(RemoveNewDefaultAttrsFromGraphDef( // &graph_def, *OpRegistry::Global(), producer_op_registry, nullptr)); Status RemoveNewDefaultAttrsFromGraphDef( GraphDef* graph_def, const OpRegistryInterface& consumer_op_registry, const OpRegistryInterface& producer_op_registry, std::set>* op_attr_removed); // Two functions that collect the ops used by a graph. // // This returns the ops used as a set of strings. void OpsUsedByGraph(const GraphDef& graph_def, std::set* ops_used_in_graph); // This function computes the stripped_op_list field of MetaGraphDef // and similar protos. The op_registry should contain the ops used to // produce graph_def. The resulting stripped_op_list can be // communicated from the producer to the consumer, which can use // RemoveNewDefaultAttrsFromGraphDef() to improve forwards compatibility // (using an OpListOpRegistry as indicated in the example above). // // Most users will pass *OpRegistry::Global() for op_registry to strip against // the list of ops registered in this process. Status StrippedOpListForGraph(const GraphDef& graph_def, const OpRegistryInterface& op_registry, OpList* stripped_op_list); } // namespace tensorflow #endif // TENSORFLOW_CORE_FRAMEWORK_GRAPH_DEF_UTIL_H_ ``` 本文链接: http://codeeyes.net/archives/tensorflow-core-framework-graph_def_util_h.html