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mpdofy onnx.proto

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changzherui 2021-07-03 00:26:49 +08:00
parent 6b902f7a3b
commit 2ff0e2af5f
1 changed files with 19 additions and 268 deletions
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third_party/proto/onnx/onnx.proto vendored
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@ -3,8 +3,8 @@
// //
// SPDX-License-Identifier: Apache-2.0 // Copyright (c) ONNX Project Contributors.
// Licensed under the MIT license.
syntax = "proto2"; syntax = "proto2";
@ -27,6 +27,13 @@ package onnx;
// Notes // Notes
// //
// Release
//
// We are still in the very early stage of defining ONNX. The current
// version of ONNX is a starting point. While we are actively working
// towards a complete spec, we would like to get the community involved
// by sharing our working version of ONNX.
//
// Protobuf compatibility // Protobuf compatibility
// //
// To simplify framework compatibility, ONNX is defined using the subset of protobuf // To simplify framework compatibility, ONNX is defined using the subset of protobuf
@ -54,7 +61,7 @@ enum Version {
// The version field is always serialized and we will use it to store the // The version field is always serialized and we will use it to store the
// version that the graph is generated from. This helps us set up version // version that the graph is generated from. This helps us set up version
// control. // control.
// For the IR, we are using simple numbers starting with 0x00000001, // For the IR, we are using simple numbers starting with with 0x00000001,
// which was the version we published on Oct 10, 2017. // which was the version we published on Oct 10, 2017.
IR_VERSION_2017_10_10 = 0x0000000000000001; IR_VERSION_2017_10_10 = 0x0000000000000001;
@ -83,26 +90,7 @@ enum Version {
// - Add support for sparse tensor constants stored in model. // - Add support for sparse tensor constants stored in model.
// - Add message SparseTensorProto // - Add message SparseTensorProto
// - Add sparse initializers // - Add sparse initializers
IR_VERSION_2019_9_19 = 0x0000000000000006; IR_VERSION = 0x0000000000000006;
// IR VERSION 7 published on May 8, 2020
// - Add support to allow function body graph to rely on multiple external opreator sets.
// - Add a list to promote inference graph's initializers to global and
// mutable variables. Global variables are visible in all graphs of the
// stored models.
// - Add message TrainingInfoProto to store initialization
// method and training algorithm. The execution of TrainingInfoProto
// can modify the values of mutable variables.
// - Implicitly add inference graph into each TrainingInfoProto's algorithm.
IR_VERSION_2020_5_8 = 0x0000000000000007;
// IR VERSION 8 published on <TBD>
// Introduce TypeProto.SparseTensor
// Introduce TypeProto.Optional
// Added a list of FunctionProtos local to the model
// Deprecated since_version and operator status from FunctionProto
IR_VERSION = 0x0000000000000008;
} }
// Attributes // Attributes
@ -123,7 +111,6 @@ message AttributeProto {
TENSOR = 4; TENSOR = 4;
GRAPH = 5; GRAPH = 5;
SPARSE_TENSOR = 11; SPARSE_TENSOR = 11;
TYPE_PROTO = 13;
FLOATS = 6; FLOATS = 6;
INTS = 7; INTS = 7;
@ -131,7 +118,6 @@ message AttributeProto {
TENSORS = 9; TENSORS = 9;
GRAPHS = 10; GRAPHS = 10;
SPARSE_TENSORS = 12; SPARSE_TENSORS = 12;
TYPE_PROTOS = 14;
} }
// The name field MUST be present for this version of the IR. // The name field MUST be present for this version of the IR.
@ -148,10 +134,10 @@ message AttributeProto {
// The type field MUST be present for this version of the IR. // The type field MUST be present for this version of the IR.
// For 0.0.1 versions of the IR, this field was not defined, and // For 0.0.1 versions of the IR, this field was not defined, and
// implementations needed to use has_field heuristics to determine // implementations needed to use has_field hueristics to determine
// which value field was in use. For IR_VERSION 0.0.2 or later, this // which value field was in use. For IR_VERSION 0.0.2 or later, this
// field MUST be set and match the f|i|s|t|... field in use. This // field MUST be set and match the f|i|s|t|... field in use. This
// change was made to accommodate proto3 implementations. // change was made to accomodate proto3 implementations.
optional AttributeType type = 20; // discriminator that indicates which field below is in use optional AttributeType type = 20; // discriminator that indicates which field below is in use
// Exactly ONE of the following fields must be present for this version of the IR // Exactly ONE of the following fields must be present for this version of the IR
@ -163,7 +149,6 @@ message AttributeProto {
optional SparseTensorProto sparse_tensor = 22; // sparse tensor value optional SparseTensorProto sparse_tensor = 22; // sparse tensor value
// Do not use field below, it's deprecated. // Do not use field below, it's deprecated.
// optional ValueProto v = 12; // value - subsumes everything but graph // optional ValueProto v = 12; // value - subsumes everything but graph
optional TypeProto tp = 14; // type proto
repeated float floats = 7; // list of floats repeated float floats = 7; // list of floats
repeated int64 ints = 8; // list of ints repeated int64 ints = 8; // list of ints
@ -171,7 +156,6 @@ message AttributeProto {
repeated TensorProto tensors = 10; // list of tensors repeated TensorProto tensors = 10; // list of tensors
repeated GraphProto graphs = 11; // list of graph repeated GraphProto graphs = 11; // list of graph
repeated SparseTensorProto sparse_tensors = 23; // list of sparse tensors repeated SparseTensorProto sparse_tensors = 23; // list of sparse tensors
repeated TypeProto type_protos = 15;// list of type protos
} }
// Defines information on value, including the name, the type, and // Defines information on value, including the name, the type, and
@ -213,130 +197,12 @@ message NodeProto {
optional string doc_string = 6; optional string doc_string = 6;
} }
// Training information
// TrainingInfoProto stores information for training a model.
// In particular, this defines two functionalities: an initialization-step
// and a training-algorithm-step. Initialization resets the model
// back to its original state as if no training has been performed.
// Training algorithm improves the model based on input data.
//
// The semantics of the initialization-step is that the initializers
// in ModelProto.graph and in TrainingInfoProto.algorithm are first
// initialized as specified by the initializers in the graph, and then
// updated by the "initialization_binding" in every instance in
// ModelProto.training_info.
//
// The field "algorithm" defines a computation graph which represents a
// training algorithm's step. After the execution of a
// TrainingInfoProto.algorithm, the initializers specified by "update_binding"
// may be immediately updated. If the targeted training algorithm contains
// consecutive update steps (such as block coordinate descent methods),
// the user needs to create a TrainingInfoProto for each step.
message TrainingInfoProto {
// This field describes a graph to compute the initial tensors
// upon starting the training process. Initialization graph has no input
// and can have multiple outputs. Usually, trainable tensors in neural
// networks are randomly initialized. To achieve that, for each tensor,
// the user can put a random number operator such as RandomNormal or
// RandomUniform in TrainingInfoProto.initialization.node and assign its
// random output to the specific tensor using "initialization_binding".
// This graph can also set the initializers in "algorithm" in the same
// TrainingInfoProto; a use case is resetting the number of training
// iteration to zero.
//
// By default, this field is an empty graph and its evaluation does not
// produce any output. Thus, no initializer would be changed by default.
optional GraphProto initialization = 1;
// This field represents a training algorithm step. Given required inputs,
// it computes outputs to update initializers in its own or inference graph's
// initializer lists. In general, this field contains loss node, gradient node,
// optimizer node, increment of iteration count.
//
// An execution of the training algorithm step is performed by executing the
// graph obtained by combining the inference graph (namely "ModelProto.graph")
// and the "algorithm" graph. That is, the actual the actual
// input/initializer/output/node/value_info/sparse_initializer list of
// the training graph is the concatenation of
// "ModelProto.graph.input/initializer/output/node/value_info/sparse_initializer"
// and "algorithm.input/initializer/output/node/value_info/sparse_initializer"
// in that order. This combined graph must satisfy the normal ONNX conditions.
// Now, let's provide a visualization of graph combination for clarity.
// Let the inference graph (i.e., "ModelProto.graph") be
// tensor_a, tensor_b -> MatMul -> tensor_c -> Sigmoid -> tensor_d
// and the "algorithm" graph be
// tensor_d -> Add -> tensor_e
// The combination process results
// tensor_a, tensor_b -> MatMul -> tensor_c -> Sigmoid -> tensor_d -> Add -> tensor_e
//
// Notice that an input of a node in the "algorithm" graph may reference the
// output of a node in the inference graph (but not the other way round). Also, inference
// node cannot reference inputs of "algorithm". With these restrictions, inference graph
// can always be run independently without training information.
//
// By default, this field is an empty graph and its evaluation does not
// produce any output. Evaluating the default training step never
// update any initializers.
optional GraphProto algorithm = 2;
// This field specifies the bindings from the outputs of "initialization" to
// some initializers in "ModelProto.graph.initializer" and
// the "algorithm.initializer" in the same TrainingInfoProto.
// See "update_binding" below for details.
//
// By default, this field is empty and no initializer would be changed
// by the execution of "initialization".
repeated StringStringEntryProto initialization_binding = 3;
// Gradient-based training is usually an iterative procedure. In one gradient
// descent iteration, we apply
//
// x = x - r * g
//
// where "x" is the optimized tensor, "r" stands for learning rate, and "g" is
// gradient of "x" with respect to a chosen loss. To avoid adding assignments
// into the training graph, we split the update equation into
//
// y = x - r * g
// x = y
//
// The user needs to save "y = x - r * g" into TrainingInfoProto.algorithm. To
// tell that "y" should be assigned to "x", the field "update_binding" may
// contain a key-value pair of strings, "x" (key of StringStringEntryProto)
// and "y" (value of StringStringEntryProto).
// For a neural network with multiple trainable (mutable) tensors, there can
// be multiple key-value pairs in "update_binding".
//
// The initializers appears as keys in "update_binding" are considered
// mutable variables. This implies some behaviors
// as described below.
//
// 1. We have only unique keys in all "update_binding"s so that two
// variables may not have the same name. This ensures that one
// variable is assigned up to once.
// 2. The keys must appear in names of "ModelProto.graph.initializer" or
// "TrainingInfoProto.algorithm.initializer".
// 3. The values must be output names of "algorithm" or "ModelProto.graph.output".
// 4. Mutable variables are initialized to the value specified by the
// corresponding initializer, and then potentially updated by
// "initializer_binding"s and "update_binding"s in "TrainingInfoProto"s.
//
// This field usually contains names of trainable tensors
// (in ModelProto.graph), optimizer states such as momentums in advanced
// stochastic gradient methods (in TrainingInfoProto.graph),
// and number of training iterations (in TrainingInfoProto.graph).
//
// By default, this field is empty and no initializer would be changed
// by the execution of "algorithm".
repeated StringStringEntryProto update_binding = 4;
}
// Models // Models
// //
// ModelProto is a top-level file/container format for bundling a ML model and // ModelProto is a top-level file/container format for bundling a ML model and
// associating its computation graph with metadata. // associating its computation graph with metadata.
// //
// The semantics of the model are described by the associated GraphProto's. // The semantics of the model are described by the associated GraphProto.
message ModelProto { message ModelProto {
// The version of the IR this model targets. See Version enum above. // The version of the IR this model targets. See Version enum above.
// This field MUST be present. // This field MUST be present.
@ -381,35 +247,6 @@ message ModelProto {
// Named metadata values; keys should be distinct. // Named metadata values; keys should be distinct.
repeated StringStringEntryProto metadata_props = 14; repeated StringStringEntryProto metadata_props = 14;
// Training-specific information. Sequentially executing all stored
// `TrainingInfoProto.algorithm`s and assigning their outputs following
// the corresponding `TrainingInfoProto.update_binding`s is one training
// iteration. Similarly, to initialize the model
// (as if training hasn't happened), the user should sequentially execute
// all stored `TrainingInfoProto.initialization`s and assigns their outputs
// using `TrainingInfoProto.initialization_binding`s.
//
// If this field is empty, the training behavior of the model is undefined.
repeated TrainingInfoProto training_info = 20;
// A list of function protos local to the model.
//
// Model local functions override standard operator sets. Meaning,
// if a model local function exists for op_type + domain combination
// then it will be preferred over the operator or function present in
// standard defined or cutom operator sets.
//
// The operator sets imported by FunctionProto should be compatible with the ones
// imported by ModelProto and other model local FunctionProtos.
// Example, if same operator set say 'A' is imported by a FunctionProto and ModelProto
// or by 2 FunctionProtos then versions for the operator set may be different but,
// the operator schema returned for op_type, domain, version combination
// for both the versions should be same for every node in the function body.
// One FunctionProto can reference other FunctionProto in the model, however, recursive reference
// is not allowed.
repeated FunctionProto functions = 25;
}; };
// StringStringEntryProto follows the pattern for cross-proto-version maps. // StringStringEntryProto follows the pattern for cross-proto-version maps.
@ -444,9 +281,8 @@ message GraphProto {
optional string name = 2; // namespace Graph optional string name = 2; // namespace Graph
// A list of named tensor values, used to specify constant inputs of the graph. // A list of named tensor values, used to specify constant inputs of the graph.
// Each initializer (both TensorProto as well SparseTensorProto) MUST have a name. // Each TensorProto entry must have a distinct name (within the list) that
// The name MUST be unique across both initializer and sparse_initializer, // MAY also appear in the input list.
// but the name MAY also appear in the input list.
repeated TensorProto initializer = 5; repeated TensorProto initializer = 5;
// Initializers (see above) stored in sparse format. // Initializers (see above) stored in sparse format.
@ -537,7 +373,7 @@ message TensorProto {
// For float and complex64 values // For float and complex64 values
// Complex64 tensors are encoded as a single array of floats, // Complex64 tensors are encoded as a single array of floats,
// with the real components appearing in odd numbered positions, // with the real components appearing in odd numbered positions,
// and the corresponding imaginary component appearing in the // and the corresponding imaginary component apparing in the
// subsequent even numbered position. (e.g., [1.0 + 2.0i, 3.0 + 4.0i] // subsequent even numbered position. (e.g., [1.0 + 2.0i, 3.0 + 4.0i]
// is encoded as [1.0, 2.0 ,3.0 ,4.0] // is encoded as [1.0, 2.0 ,3.0 ,4.0]
// When this field is present, the data_type field MUST be FLOAT or COMPLEX64. // When this field is present, the data_type field MUST be FLOAT or COMPLEX64.
@ -609,7 +445,7 @@ message TensorProto {
// For double // For double
// Complex128 tensors are encoded as a single array of doubles, // Complex128 tensors are encoded as a single array of doubles,
// with the real components appearing in odd numbered positions, // with the real components appearing in odd numbered positions,
// and the corresponding imaginary component appearing in the // and the corresponding imaginary component apparing in the
// subsequent even numbered position. (e.g., [1.0 + 2.0i, 3.0 + 4.0i] // subsequent even numbered position. (e.g., [1.0 + 2.0i, 3.0 + 4.0i]
// is encoded as [1.0, 2.0 ,3.0 ,4.0] // is encoded as [1.0, 2.0 ,3.0 ,4.0]
// When this field is present, the data_type field MUST be DOUBLE or COMPLEX128 // When this field is present, the data_type field MUST be DOUBLE or COMPLEX128
@ -625,8 +461,6 @@ message TensorProto {
message SparseTensorProto { message SparseTensorProto {
// The sequence of non-default values are encoded as a tensor of shape [NNZ]. // The sequence of non-default values are encoded as a tensor of shape [NNZ].
// The default-value is zero for numeric tensors, and empty-string for string tensors. // The default-value is zero for numeric tensors, and empty-string for string tensors.
// values must have a non-empty name present which serves as a name for SparseTensorProto
// when used in sparse_initializer list.
optional TensorProto values = 1; optional TensorProto values = 1;
// The indices of the non-default values, which may be stored in one of two formats. // The indices of the non-default values, which may be stored in one of two formats.
@ -694,23 +528,6 @@ message TypeProto {
optional TypeProto value_type = 2; optional TypeProto value_type = 2;
}; };
// wrapper for Tensor, Sequence, or Map
message Optional {
// The type and optional shape of the element wrapped.
// This field MUST be present for this version of the IR.
// Possible values correspond to OptionalProto.DataType enum
optional TypeProto elem_type = 1;
};
message SparseTensor {
// This field MUST NOT have the value of UNDEFINED
// This field MUST have a valid TensorProto.DataType value
// This field MUST be present for this version of the IR.
optional int32 elem_type = 1;
optional TensorShapeProto shape = 2;
}
oneof value { oneof value {
// The type of a tensor. // The type of a tensor.
@ -727,13 +544,6 @@ message TypeProto {
// The type of a map. // The type of a map.
Map map_type = 5; Map map_type = 5;
// The type of an optional.
Optional optional_type = 9;
// Type of the sparse tensor
SparseTensor sparse_tensor_type = 8;
} }
// An optional denotation can be used to denote the whole // An optional denotation can be used to denote the whole
@ -757,62 +567,3 @@ message OperatorSetIdProto {
// This field MUST be present in this version of the IR. // This field MUST be present in this version of the IR.
optional int64 version = 2; optional int64 version = 2;
} }
// Operator/function status.
enum OperatorStatus {
EXPERIMENTAL = 0;
STABLE = 1;
}
message FunctionProto {
// The name of the function, similar usage of op_type in OperatorProto.
// Combined with FunctionProto.domain, this forms the unique identity of
// the FunctionProto.
optional string name = 1;
// Deprecated since IR Version 8
// optional int64 since_version = 2;
reserved 2;
reserved "since_version";
// Deprecated since IR Version 8
// optional OperatorStatus status = 3;
reserved 3;
reserved "status";
// The inputs and outputs of the function.
repeated string input = 4;
repeated string output = 5;
// The attributes of the function.
repeated string attribute = 6;
// The nodes in the function.
repeated NodeProto node = 7;
// A human-readable documentation for this function. Markdown is allowed.
optional string doc_string = 8;
// The OperatorSets this function body (graph) relies on.
// All FunctionProtos implicitly import the operator set which the function operator is part of.
//
// All nodes in the function body (graph) will bind against the operator
// with the same-domain/same-op_type operator with the HIGHEST version
// in the referenced operator sets. This means at most one version can be relied
// for one domain.
//
// The operator sets imported by FunctionProto should be compatible with the ones
// imported by ModelProto. Example, if same operator set say 'A' is imported by FunctionProto
// and ModelProto then versions for the operator set may be different but,
// the operator schema returned for op_type, domain, version combination
// for both the versions should be same.
repeated OperatorSetIdProto opset_import = 9;
// The domain which this function belongs to. Combined with FunctionProto.name, this forms the unique identity of
// the FunctionProto.
optional string domain = 10;
}
// For using protobuf-lite
option optimize_for = LITE_RUNTIME;