optimize attr default value

paddle/fluid/framework/attribute.h

@@ -208,22 +208,35 @@ Attribute GetAttrValue(const proto::OpDesc::Attr& attr_desc);
 
 class AttrReader {
  public:
-  explicit AttrReader(const AttributeMap& attrs) : attrs_(attrs) {}
+  explicit AttrReader(const AttributeMap& attrs)
+      : attrs_(attrs), attrs_default_(nullptr) {}
+
+  AttrReader(const AttributeMap& attrs, const AttributeMap& attrs_default)
+      : attrs_(attrs), attrs_default_(&attrs_default) {}
 
   template <typename T>
   inline const T& Get(const std::string& name) const {
-    PADDLE_ENFORCE_NE(attrs_.count(name), 0,
+    auto it = attrs_.find(name);
+    bool found = it != attrs_.end();
+    if (it == attrs_.end()) {
+      if (attrs_default_ != nullptr) {
+        it = attrs_default_->find(name);
+        found = it != attrs_default_->end();
+      }
+    }
+    PADDLE_ENFORCE_EQ(found, true,
                       platform::errors::NotFound(
                           "Attribute (%s) should be in AttributeMap.", name));
 
-    Attribute& attr = const_cast<Attribute&>(attrs_.at(name));
+    Attribute& attr = const_cast<Attribute&>(it->second);
     ExtractAttribute<T> extract_attr(name);
     T* attr_value = extract_attr(attr);
     return *attr_value;
   }
 
  private:
   const AttributeMap& attrs_;
+  const AttributeMap* attrs_default_;
 };
 
 // check whether a value(attribute) fit a certain limit
@@ -234,8 +247,8 @@ class GreaterThanChecker {
   void operator()(const T& value) const {
     PADDLE_ENFORCE_GT(
         value, lower_bound_,
-        platform::errors::OutOfRange(
-            "Check for attribute value greater than a certain value failed."));
+        platform::errors::OutOfRange("Check for attribute value greater than "
+                                     "a certain value failed."));
   }
 
  private:
@@ -332,9 +345,9 @@ class TypedAttrChecker {
   TypedAttrChecker& SetDefault(const T& default_value) {
     PADDLE_ENFORCE_EQ(
         default_value_setter_.empty(), true,
-        platform::errors::AlreadyExists(
-            "Attribute (%s) has a default value and cannot be set repeatedly.",
-            attr_name_));
+        platform::errors::AlreadyExists("Attribute (%s) has a default value "
+                                        "and cannot be set repeatedly.",
+                                        attr_name_));
     default_value_setter_.push_back(DefaultValueSetter<T>(default_value));
     return *this;
   }
@@ -345,30 +358,41 @@ class TypedAttrChecker {
     return *this;
   }
 
-  void operator()(AttributeMap* attr_map,
-                  bool get_default_value_only = false) const {
+  void operator()(AttributeMap* attr_map, bool get_default_value_only = false,
+                  bool without_default_value = false) const {
     if (get_default_value_only) {
       if (!default_value_setter_.empty()) {
         attr_map->emplace(attr_name_, default_value_setter_[0]());
       }
       return;
     }
 
-    auto it = attr_map->find(attr_name_);
-    if (it == attr_map->end()) {
-      // user do not set this attr
-      PADDLE_ENFORCE_EQ(
-          default_value_setter_.empty(), false,
-          platform::errors::InvalidArgument(
-              "Attribute (%s) is not set correctly.", attr_name_));
-      // default_value_setter_ has no more than one element
-      attr_map->emplace(attr_name_, default_value_setter_[0]());
-    }
-    it = attr_map->find(attr_name_);
-    ExtractAttribute<T> extract_attr(attr_name_);
-    T* attr_value = extract_attr(it->second);
-    for (const auto& checker : value_checkers_) {
-      checker(*attr_value);
+    if (without_default_value) {
+      auto it = attr_map->find(attr_name_);
+      if (it != attr_map->end()) {
+        ExtractAttribute<T> extract_attr(attr_name_);
+        T* attr_value = extract_attr(it->second);
+        for (const auto& checker : value_checkers_) {
+          checker(*attr_value);
+        }
+      }
+    } else {
+      auto it = attr_map->find(attr_name_);
+      if (it == attr_map->end()) {
+        // user do not set this attr
+        PADDLE_ENFORCE_EQ(
+            default_value_setter_.empty(), false,
+            platform::errors::InvalidArgument(
+                "Attribute (%s) is not set correctly.", attr_name_));
+        // default_value_setter_ has no more than one element
+        auto tmp = attr_map->emplace(attr_name_, default_value_setter_[0]());
+        it = tmp.first;
+      }
+      ExtractAttribute<T> extract_attr(attr_name_);
+      T* attr_value = extract_attr(it->second);
+      for (const auto& checker : value_checkers_) {
+        checker(*attr_value);
+      }
     }
   }
 
@@ -380,7 +404,7 @@ class TypedAttrChecker {
 
 // check whether op's all attributes fit their own limits
 class OpAttrChecker {
-  typedef std::function<void(AttributeMap*, bool)> AttrChecker;
+  typedef std::function<void(AttributeMap*, bool, bool)> AttrChecker;
 
  public:
   template <typename T>
@@ -390,18 +414,19 @@ class OpAttrChecker {
     return *(checker.target<TypedAttrChecker<T>>());
   }
 
-  void Check(AttributeMap* attr_map, bool explicit_only = false) const {
+  void Check(AttributeMap* attr_map, bool explicit_only = false,
+             bool without_default_value = false) const {
     auto checker_num = attr_checkers_.size();
     if (explicit_only) checker_num = explicit_checker_num_;
     for (size_t i = 0; i < checker_num; ++i) {
-      attr_checkers_[i](attr_map, false);
+      attr_checkers_[i](attr_map, false, without_default_value);
     }
   }
 
   AttributeMap GetAttrsDefaultValuesMap() const {
     AttributeMap default_values_map;
     for (const auto& checker : attr_checkers_) {
-      checker(&default_values_map, true);
+      checker(&default_values_map, true, false);
     }
     return default_values_map;
   }
@@ -410,15 +435,26 @@ class OpAttrChecker {
     explicit_checker_num_ = attr_checkers_.size();
   }
 
+  void InitDefaultMap() {
+    for (const auto& checker : attr_checkers_) {
+      checker(&attrs_default_, true, false);
+    }
+  }
+
+  const AttributeMap& GetAttrDefaultMap() const { return attrs_default_; }
+
  private:
   std::vector<AttrChecker> attr_checkers_;
 
+  AttributeMap attrs_default_;
+
   // in order to improve the efficiency of dynamic graph mode,
   // we divede the attribute into explicit type and implicit type.
   // for explicit attribute, we mean the attribute added in the customized
   // op makers, usually it's defined in the overloaded Make method.
   // for implicit attribute, we mean the attribute added outside of the Make
-  // method like "op_role", "op_role_var", and they are useless in dynamic graph
+  // method like "op_role", "op_role_var", and they are useless in dynamic
+  // graph
   // mode
   size_t explicit_checker_num_;
 };

paddle/fluid/framework/custom_operator.cc

@@ -781,10 +781,12 @@ void RegisterOperatorWithMetaInfo(
         const imperative::NameVarBaseMap& var_base_map_in,
         const imperative::NameVarBaseMap& var_base_map_out,
         const framework::AttributeMap& attrs,
+        const framework::AttributeMap& attrs_default,
         const std::map<std::string, std::string>& inplace_map) {
       CustomGradOpMaker<paddle::imperative::OpBase> maker(
           type, var_base_map_in, var_base_map_out, attrs, inplace_map,
           grad_op_name, grad_op_inputs, grad_op_outputs);
+      maker.SetDygraphAttrsDefaultMap(attrs_default);
       return maker();
     };
 

paddle/fluid/framework/details/op_registry.h

@@ -249,8 +249,10 @@ struct OpInfoFiller<T, kGradOpBaseMaker> {
         const imperative::NameVarBaseMap& var_base_map_in,
         const imperative::NameVarBaseMap& var_base_map_out,
         const framework::AttributeMap& attrs,
+        const framework::AttributeMap& attrs_default,
         const std::map<std::string, std::string>& inplace_map) {
       T maker(type, var_base_map_in, var_base_map_out, attrs, inplace_map);
+      maker.SetDygraphAttrsDefaultMap(attrs_default);
       return maker();
     };
   }

paddle/fluid/framework/grad_op_desc_maker.h

@@ -219,6 +219,19 @@ class SingleGradOpMaker<imperative::OpBase>
  public:
   using GradOpBaseMakerBase::GradOpBaseMakerBase;
 
+  virtual const framework::Attribute& GetAttr(const std::string& name) const {
+    auto it = Attrs().find(name);
+    if (it == Attrs().end()) {
+      it = this->AttrsDefault().find(name);
+      PADDLE_ENFORCE_EQ(it != this->AttrsDefault().end(), true,
+                        platform::errors::NotFound(
+                            "Cannot find attribute [%s] in operator [%s]", name,
+                            this->ForwardOpType()));
+    }
+
+    return it->second;
+  }
+
   std::shared_ptr<imperative::GradOpNode> operator()() const final {
     auto node = this->NewGradNode();
     auto& inplace_map = this->GetInplaceMap();
@@ -228,6 +241,7 @@ class SingleGradOpMaker<imperative::OpBase>
     {
       imperative::TracedGradOp traced_grad_op(node);
       try {
+        traced_grad_op.SetAttrDefaultMap(this->AttrsDefault());
         this->Apply(&traced_grad_op);
       } catch (platform::EnforceNotMet& exception) {
         framework::AppendErrorOpHint(traced_grad_op.Type(), &exception);

paddle/fluid/framework/op_proto_maker.cc

@@ -66,6 +66,7 @@ void OpProtoAndCheckerMaker::operator()(proto::OpProto* proto,
   op_checker_ = attr_checker;
   Make();
   op_checker_->RecordExplicitCheckerNum();
+  op_checker_->InitDefaultMap();
 
   AddAttr<int>(OpRoleAttrName(), "The role of this operator")
       .InEnum(

paddle/fluid/framework/type_defs.h

@@ -71,6 +71,7 @@ using DygraphGradOpMakerFN =
         const imperative::NameVarBaseMap& /*var_base_map_in*/,
         const imperative::NameVarBaseMap& /*var_base_map_out*/,
         const framework::AttributeMap& /*attributes*/,
+        const framework::AttributeMap& /*attributes default*/,
         const std::map<std::string, std::string>& /*inplace_map*/)>;
 
 using InferVarTypeFN =

paddle/fluid/imperative/basic_engine.cc

@@ -474,10 +474,10 @@ void BasicEngine::Execute() {
         try {
           if (tmp_ins_ptr == nullptr) {
             OpBase::Run(cur_op.InnerOp(), bwd_ins, tmp_outs, cur_op.Attrs(),
-                        cur_op.place());
+                        cur_op.AttrsDefault(), cur_op.place());
           } else {
             OpBase::Run(cur_op.InnerOp(), *tmp_ins_ptr, tmp_outs,
-                        cur_op.Attrs(), cur_op.place());
+                        cur_op.Attrs(), cur_op.AttrsDefault(), cur_op.place());
           }
         } catch (platform::EnforceNotMet& exception) {
           Clear();

paddle/fluid/imperative/dygraph_grad_maker.h

@@ -113,9 +113,18 @@ class GradOpBaseMakerBase {
     return vec_temp;
   }
 
+  // Only for dygraph
+  void SetDygraphAttrsDefaultMap(const framework::AttributeMap& attrs_default) {
+    attrs_default_ = &attrs_default;
+  }
+
+  const framework::AttributeMap& AttrsDefault() const {
+    return *attrs_default_;
+  }
+
   const framework::AttributeMap& Attrs() const { return attrs_; }
 
-  const framework::Attribute& GetAttr(const std::string& name) const {
+  virtual const framework::Attribute& GetAttr(const std::string& name) const {
     auto it = attrs_.find(name);
     PADDLE_ENFORCE_EQ(
         it != attrs_.end(), true,
@@ -199,6 +208,7 @@ class GradOpBaseMakerBase {
   const NameVarBaseMap& var_base_map_in_;
   const NameVarBaseMap& var_base_map_out_;
   const framework::AttributeMap& attrs_;
+  const framework::AttributeMap* attrs_default_;
   const std::map<std::string, std::string>& inplace_map_;
 };
 
@@ -285,6 +295,10 @@ class TracedGradOp {
     return op_->SetAttrMap(attrs);
   }
 
+  void SetAttrDefaultMap(const framework::AttributeMap& attrs) {
+    return op_->SetAttrDefaultMap(attrs);
+  }
+
   void SetAttr(const std::string& name, const framework::Attribute& v) {
     op_->SetAttr(name, v);
   }

paddle/fluid/imperative/execution_context.h

@@ -35,11 +35,13 @@ class DygraphExecutionContext : public framework::ExecutionContext {
                           const framework::RuntimeContext& ctx,
                           const NameVarMap<VarType>& var_base_map_in,
                           const NameVarMap<VarType>& var_base_map_out,
-                          const framework::AttributeMap& attrs)
+                          const framework::AttributeMap& attrs,
+                          const framework::AttributeMap& attrs_default)
       : ExecutionContext(op, scope, device_context, ctx),
         var_base_map_in_(var_base_map_in),
         var_base_map_out_(var_base_map_out),
-        attrs_(attrs) {}
+        attrs_(attrs),
+        attrs_default_(attrs_default) {}
 
   std::string InputName(const std::string& name) const override {
     auto it = var_base_map_in_.find(name);
@@ -92,17 +94,21 @@ class DygraphExecutionContext : public framework::ExecutionContext {
   }
 
   bool HasAttr(const std::string& name) const override {
-    return attrs_.count(name) != 0;
+    return attrs_.count(name) != 0 || attrs_default_.count(name) != 0;
   }
 
   const framework::AttributeMap& Attrs() const override { return attrs_; }
 
   const framework::Attribute& GetAttr(const std::string& name) const override {
     auto it = attrs_.find(name);
 
-    PADDLE_ENFORCE_NE(
-        it, attrs_.end(),
-        platform::errors::NotFound("can not find [%s] in attrs", name));
+    if (it == attrs_.end()) {
+      it = attrs_default_.find(name);
+      if (it == attrs_default_.end()) {
+        PADDLE_THROW(
+            platform::errors::NotFound("Can not find [%s] in attrs", name));
+      }
+    }
 
     return it->second;
   }
@@ -192,6 +198,7 @@ class DygraphExecutionContext : public framework::ExecutionContext {
   const NameVarMap<VarType>& var_base_map_in_;
   const NameVarMap<VarType>& var_base_map_out_;
   const framework::AttributeMap& attrs_;
+  const framework::AttributeMap& attrs_default_;
 };
 
 }  // namespace imperative

paddle/fluid/imperative/infer_shape_context.h

@@ -35,10 +35,12 @@ class DygraphInferShapeContext : public framework::InferShapeContext {
   DygraphInferShapeContext(const NameVarMap<VarType>* in,
                            const NameVarMap<VarType>* out,
                            const framework::AttributeMap* attr,
+                           const framework::AttributeMap* attr_default,
                            const std::string op_type)
       : var_base_map_in_(in),
         var_base_map_out_(out),
         attrs_(attr),
+        attrs_default_(attr_default),
         op_type_(op_type) {}
 
   bool HasInput(const std::string& name) const override {
@@ -101,7 +103,7 @@ class DygraphInferShapeContext : public framework::InferShapeContext {
   }
 
   framework::AttrReader Attrs() const override {
-    return framework::AttrReader(*attrs_);
+    return framework::AttrReader(*attrs_, *attrs_default_);
   }
 
   std::vector<std::string> Inputs(const std::string& name) const override {
@@ -395,6 +397,7 @@ class DygraphInferShapeContext : public framework::InferShapeContext {
   const NameVarMap<VarType>* var_base_map_in_;
   const NameVarMap<VarType>* var_base_map_out_;
   const framework::AttributeMap* attrs_;
+  const framework::AttributeMap* attrs_default_;
   const std::string op_type_;
 };