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syntax = "proto3";
package tensorflow;
option cc_enable_arenas = true;
option java_outer_classname = "GraphProtos";
option java_multiple_files = true;
option java_package = "org.tensorflow.framework";
option go_package = "github.com/tensorflow/tensorflow/tensorflow/go/core/framework";
import "tensorflow/core/framework/node_def.proto";
import "tensorflow/core/framework/function.proto";
import "tensorflow/core/framework/versions.proto";
// Represents the graph of operations
message GraphDef {
repeated NodeDef node = 1;
// Compatibility versions of the graph. See core/public/version.h for version
// history. The GraphDef version is distinct from the TensorFlow version, and
// each release of TensorFlow will support a range of GraphDef versions.
VersionDef versions = 4;
// Deprecated single version field; use versions above instead. Since all
// GraphDef changes before "versions" was introduced were forward
// compatible, this field is entirely ignored.
int32 version = 3 [deprecated = true];
// EXPERIMENTAL. DO NOT USE OR DEPEND ON THIS YET.
//
// "library" provides user-defined functions.
//
// Naming:
// * library.function.name are in a flat namespace.
// NOTE: We may need to change it to be hierarchical to support
// different orgs. E.g.,
// { "/google/nn", { ... }},
// { "/google/vision", { ... }}
// { "/org_foo/module_bar", { ... }}
// map<string, FunctionDefLib> named_lib;
// * If node[i].op is the name of one function in "library",
// node[i] is deemed as a function call. Otherwise, node[i].op
// must be a primitive operation supported by the runtime.
//
//
// Function call semantics:
//
// * The callee may start execution as soon as some of its inputs
// are ready. The caller may want to use Tuple() mechanism to
// ensure all inputs are ready in the same time.
//
// * The consumer of return values may start executing as soon as
// the return values the consumer depends on are ready. The
// consumer may want to use Tuple() mechanism to ensure the
// consumer does not start until all return values of the callee
// function are ready.
FunctionDefLibrary library = 2;
};