[Runtime] Introduce runtime module property

include/tvm/runtime/module.h

@@ -41,6 +41,31 @@
 namespace tvm {
 namespace runtime {
 
+/*!
+ * \brief Property of runtime module
+ * We classify the property of runtime module into the following categories.
+ * - kBinarySerializable: we can serialize the module to the stream of bytes. CUDA/OpenCL/JSON
+ * runtime are representative examples. A binary exportable module can be integrated into final
+ * runtime artifact by being serialized as data into the artifact, then deserialzied at runtime.
+ * This class of modules must implement SaveToBinary, and have a matching deserializer registered as
+ * 'runtime.module.loadbinary_<type_key>'.
+ * - kRunnable: we can run the module directly. LLVM/CUDA/JSON runtime, executors (e.g,
+ * virtual machine) runtimes are runnable. Non-runnable modules, such as CSourceModule, requires a
+ * few extra steps (e.g,. compilation, link) to make it runnable.
+ * - kDSOExportable: we can export the module as DSO. A DSO exportable module (e.g., a
+ * CSourceModuleNode of type_key 'c') can be incorporated into the final runtime artifact (ie shared
+ * library) by compilation and/or linking using the external compiler (llvm, nvcc, etc). DSO
+ * exportable modules must implement SaveToFile.
+ */
+namespace property {
+/*! \brief Binary serializable runtime module */
+constexpr const uint8_t kBinarySerializable = 0b001;
+/*! \brief Runnable runtime module */
+constexpr const uint8_t kRunnable = 0b010;
+/*! \brief DSO exportable runtime module */
+constexpr const uint8_t kDSOExportable = 0b100;
+};  // namespace property
+
 class ModuleNode;
 class PackedFunc;
 
@@ -193,20 +218,14 @@ class TVM_DLL ModuleNode : public Object {
   const std::vector<Module>& imports() const { return imports_; }
 
   /*!
-   * \brief Returns true if this module is 'DSO exportable'.
-   *
-   * A DSO exportable module (eg a CSourceModuleNode of type_key 'c') can be incorporated into the
-   * final runtime artifact (ie shared library) by compilation and/or linking using the external
-   * compiler (llvm, nvcc, etc). DSO exportable modules must implement SaveToFile.
-   *
-   * By contrast, non-DSO exportable modules (eg CUDAModuleNode of type_key 'cuda') typically must
-   * be incorporated into the final runtime artifact by being serialized as data into the
-   * artifact, then deserialized at runtime. Non-DSO exportable modules must implement SaveToBinary,
-   * and have a matching deserializer registered as 'runtime.module.loadbinary_<type_key>'.
-   *
-   * The default implementation returns false.
+   * \brief Returns bitmap of property.
+   * By default, none of the property is set. Derived class can override this function and set its
+   * own property.
    */
-  virtual bool IsDSOExportable() const;
+  virtual uint8_t GetProperty() const { return 0x000; }
+
+  /*! \brief Returns true if this module is 'DSO exportable'. */
+  bool IsDSOExportable() const { return GetProperty() == property::kDSOExportable; };
 
   /*!
    * \brief Returns true if this module has a definition for a function of \p name. If

include/tvm/runtime/vm/executable.h

@@ -66,6 +66,9 @@ class TVM_DLL Executable : public ModuleNode {
    */
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) final;
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable; };
+
   /*!
    * \brief Write the Executable to the binary stream in serialized form.
    *

include/tvm/runtime/vm/vm.h

@@ -178,6 +178,9 @@ class TVM_DLL VirtualMachine : public runtime::ModuleNode {
    */
   virtual void LoadExecutable(const ObjectPtr<Executable>& exec);
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kRunnable; }
+
  protected:
   /*! \brief Push a call frame on to the call stack. */
   void PushFrame(Index arg_count, Index ret_pc, const VMFunction& vm_func);

src/relay/backend/aot_executor_codegen.cc

@@ -1357,6 +1357,8 @@ class AOTExecutorCodegenModule : public runtime::ModuleNode {
   }
 
   const char* type_key() const final { return "RelayGraphRuntimeCodegenModule"; }
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return runtime::property::kRunnable; }
 
  private:
   void init(void* mod, const Array<Target>& targets) {

src/relay/backend/build_module.cc

@@ -283,6 +283,9 @@ class RelayBuildModule : public runtime::ModuleNode {
    */
   const char* type_key() const final { return "RelayBuildModule"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return runtime::property::kRunnable; }
+
   /*!
    * \brief Build relay IRModule for graph executor
    *

src/relay/backend/contrib/ethosu/source_module.cc

@@ -121,7 +121,7 @@ class EthosUModuleNode : public ModuleNode {
     return Module(n);
   }
 
-  bool IsDSOExportable() const final { return true; }
+  uint8_t GetProperty() const { return property::kDSOExportable; }
 
   bool ImplementsFunction(const String& name, bool query_imports) final {
     return std::find_if(compilation_artifacts_.begin(), compilation_artifacts_.end(),

src/relay/backend/graph_executor_codegen.cc

@@ -687,6 +687,9 @@ class GraphExecutorCodegenModule : public runtime::ModuleNode {
 
   const char* type_key() const final { return "RelayGraphExecutorCodegenModule"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return runtime::property::kRunnable; }
+
  private:
   std::shared_ptr<GraphExecutorCodegen> codegen_;
   LoweredOutput output_;

src/relay/backend/vm/compiler.h

@@ -93,6 +93,9 @@ class VMCompiler : public runtime::ModuleNode {
 
   const char* type_key() const final { return "VMCompiler"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kRunnable; }
+
   /*!
    * \brief Set the parameters
    *

src/relay/printer/model_library_format_printer.cc

@@ -37,6 +37,9 @@ class ModelLibraryFormatPrinter : public ::tvm::runtime::ModuleNode {
 
   const char* type_key() const final { return "model_library_format_printer"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return runtime::property::kRunnable; }
+
   std::string Print(const ObjectRef& node) {
     std::ostringstream oss;
     oss << node;

src/runtime/aot_executor/aot_executor.h

@@ -51,6 +51,9 @@ class TVM_DLL AotExecutor : public ModuleNode {
    */
   const char* type_key() const final { return "AotExecutor"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kRunnable; }
+
   void Run();
 
   /*!

src/runtime/aot_executor/aot_executor_factory.h

@@ -65,6 +65,9 @@ class TVM_DLL AotExecutorFactory : public runtime::ModuleNode {
    */
   const char* type_key() const final { return "AotExecutorFactory"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable; }
+
   /*!
    * \brief Save the module to binary stream.
    * \param stream The binary stream to save to.

src/runtime/const_loader_module.cc

@@ -100,6 +100,8 @@ class ConstLoaderModuleNode : public ModuleNode {
 
   const char* type_key() const final { return "const_loader"; }
 
+  uint8_t GetProperty() const final { return property::kBinarySerializable; };
+
   /*!
    * \brief Get the list of constants that is required by the given module.
    * \param symbol The symbol that is being queried.

src/runtime/contrib/coreml/coreml_runtime.h

@@ -105,6 +105,9 @@ class CoreMLRuntime : public ModuleNode {
    */
   virtual PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self);
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable | property::kRunnable; };
+
   /*!
    * \brief Serialize the content of the mlmodelc directory and save it to
    *        binary stream.

src/runtime/contrib/json/json_runtime.h

@@ -58,6 +58,9 @@ class JSONRuntimeBase : public ModuleNode {
 
   const char* type_key() const override { return "json"; }  // May be overridden
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const { return property::kBinarySerializable | property::kRunnable; }
+
   /*! \brief Initialize a specific json runtime. */
   virtual void Init(const Array<NDArray>& consts) = 0;
 

src/runtime/contrib/libtorch/libtorch_runtime.cc

@@ -88,6 +88,8 @@ class TorchModuleNode : public ModuleNode {
       : symbol_name_(symbol_name), module_(module) {}
 
   const char* type_key() const { return "torch"; }
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable | property::kRunnable; };
 
   /*!
    * \brief Get a packed function.

src/runtime/contrib/onnx/onnx_module.cc

@@ -35,6 +35,9 @@ class ONNXSourceModuleNode : public runtime::ModuleNode {
       : code_(code), symbol_(symbol), const_vars_(const_vars) {}
   const char* type_key() const { return "onnx"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kRunnable; };
+
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) final {
     if (name == "get_symbol") {
       return PackedFunc(

src/runtime/contrib/tensorrt/tensorrt_runtime.cc

@@ -97,6 +97,9 @@ class TensorRTRuntime : public JSONRuntimeBase {
    */
   const char* type_key() const final { return "tensorrt"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable | property::kRunnable; }
+
   /*!
    * \brief Initialize runtime. Create TensorRT layer from JSON
    * representation.

src/runtime/contrib/tflite/tflite_runtime.h

@@ -60,6 +60,9 @@ class TFLiteRuntime : public ModuleNode {
    */
   const char* type_key() const { return "TFLiteRuntime"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kRunnable; };
+
   /*!
    * \brief Invoke the internal tflite interpreter and run the whole model in
    * dependency order.

src/runtime/contrib/vitis_ai/vitis_ai_runtime.h

@@ -86,6 +86,9 @@ class VitisAIRuntime : public ModuleNode {
    */
   const char* type_key() const { return "VitisAIRuntime"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable | property::kRunnable; };
+
   /*!
    * \brief Serialize the content of the pyxir directory and save it to
    *        binary stream.

src/runtime/cuda/cuda_module.cc

@@ -65,6 +65,9 @@ class CUDAModuleNode : public runtime::ModuleNode {
 
   const char* type_key() const final { return "cuda"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable | property::kRunnable; }
+
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) final;
 
   void SaveToFile(const std::string& file_name, const std::string& format) final {

src/runtime/graph_executor/graph_executor.h

@@ -89,6 +89,9 @@ class TVM_DLL GraphExecutor : public ModuleNode {
   const char* type_key() const final { return "GraphExecutor"; }
   void Run();
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kRunnable; }
+
   /*!
    * \brief Initialize the graph executor with graph and device.
    * \param graph_json The execution graph.

src/runtime/graph_executor/graph_executor_factory.h

@@ -67,6 +67,9 @@ class TVM_DLL GraphExecutorFactory : public runtime::ModuleNode {
    */
   const char* type_key() const final { return "GraphExecutorFactory"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable; }
+
   /*!
    * \brief Save the module to binary stream.
    * \param stream The binary stream to save to.

src/runtime/hexagon/hexagon_module.h

@@ -62,6 +62,9 @@ class HexagonModuleNode : public runtime::ModuleNode {
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) override;
   std::string GetSource(const std::string& format) override;
   const char* type_key() const final { return "hexagon"; }
+  virtual uint8_t GetProperty() const {
+    return property::kBinarySerializable | property::kRunnable;
+  };
   void SaveToFile(const std::string& file_name, const std::string& format) override;
   void SaveToBinary(dmlc::Stream* stream) override;
 

src/runtime/library_module.cc

@@ -41,6 +41,7 @@ class LibraryModuleNode final : public ModuleNode {
       : lib_(lib), packed_func_wrapper_(wrapper) {}
 
   const char* type_key() const final { return "library"; }
+  uint8_t GetProperty() const final { return property::kBinarySerializable | property::kRunnable; };
 
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) final {
     TVMBackendPackedCFunc faddr;

src/runtime/metadata.cc

@@ -88,6 +88,9 @@ class MetadataModuleNode : public ::tvm::runtime::ModuleNode {
 
   const char* type_key() const final { return "metadata_module"; }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable; }
+
   static Module LoadFromBinary() {
     return Module(make_object<MetadataModuleNode>(runtime::metadata::Metadata()));
   }

src/runtime/module.cc

@@ -132,8 +132,6 @@ std::string ModuleNode::GetFormat() {
   LOG(FATAL) << "Module[" << type_key() << "] does not support GetFormat";
 }
 
-bool ModuleNode::IsDSOExportable() const { return false; }
-
 bool ModuleNode::ImplementsFunction(const String& name, bool query_imports) {
   return GetFunction(name, query_imports) != nullptr;
 }

src/runtime/opencl/opencl_common.h

@@ -431,6 +431,9 @@ class OpenCLModuleNode : public ModuleNode {
 
   const char* type_key() const final { return workspace_->type_key.c_str(); }
 
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kBinarySerializable | property::kRunnable; }
+
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) final;
   void SaveToFile(const std::string& file_name, const std::string& format) final;
   void SaveToBinary(dmlc::Stream* stream) final;

src/runtime/rpc/rpc_module.cc

@@ -175,6 +175,8 @@ class RPCModuleNode final : public ModuleNode {
   }
 
   const char* type_key() const final { return "rpc"; }
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return property::kRunnable; }
 
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) final {
     if (name == "CloseRPCConnection") {

src/runtime/static_library.cc

@@ -62,7 +62,8 @@ class StaticLibraryNode final : public runtime::ModuleNode {
     SaveBinaryToFile(file_name, data_);
   }
 
-  bool IsDSOExportable() const final { return true; }
+  // TODO(tvm-team): Make this module serializable
+  uint8_t GetProperty() const { return property::kDSOExportable; }
 
   bool ImplementsFunction(const String& name, bool query_imports) final {
     return std::find(func_names_.begin(), func_names_.end(), name) != func_names_.end();

src/target/llvm/llvm_module.cc

@@ -92,15 +92,17 @@ class LLVMModuleNode final : public runtime::ModuleNode {
   const char* type_key() const final { return "llvm"; }
 
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) final;
-
+  virtual uint8_t GetProperty() const {
+    return runtime::property::kBinarySerializable | runtime::property::kRunnable |
+           runtime::property::kDSOExportable;
+  };
   void SaveToFile(const std::string& file_name, const std::string& format) final;
   void SaveToBinary(dmlc::Stream* stream) final;
   std::string GetSource(const std::string& format) final;
 
   void Init(const IRModule& mod, const Target& target);
   void Init(std::unique_ptr<llvm::Module> module, std::unique_ptr<LLVMInstance> llvm_instance);
   void LoadIR(const std::string& file_name);
-  bool IsDSOExportable() const final { return true; }
 
   bool ImplementsFunction(const String& name, bool query_imports) final;
 

src/target/source/codegen_webgpu.cc

@@ -489,6 +489,8 @@ class WebGPUSourceModuleNode final : public runtime::ModuleNode {
       : smap_(smap), fmap_(fmap) {}
 
   const char* type_key() const final { return "webgpu"; }
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return runtime::property::kBinarySerializable; }
 
   PackedFunc GetFunction(const std::string& name, const ObjectPtr<Object>& sptr_to_self) final {
     LOG(FATAL) << "WebGPUSourceModule is not directly runnable, export and run through tvmjs";

src/target/source/source_module.cc

@@ -130,7 +130,7 @@ class CSourceModuleNode : public runtime::ModuleNode {
     }
   }
 
-  bool IsDSOExportable() const final { return true; }
+  uint8_t GetProperty() const { return runtime::property::kDSOExportable; }
 
   bool ImplementsFunction(const String& name, bool query_imports) final {
     return std::find(func_names_.begin(), func_names_.end(), name) != func_names_.end();
@@ -200,7 +200,7 @@ class CSourceCrtMetadataModuleNode : public runtime::ModuleNode {
     }
   }
 
-  bool IsDSOExportable() const final { return true; }
+  uint8_t GetProperty() const { return runtime::property::kDSOExportable; }
 
   bool ImplementsFunction(const String& name, bool query_imports) final {
     return std::find(func_names_.begin(), func_names_.end(), name) != func_names_.end();
@@ -1009,6 +1009,8 @@ class DeviceSourceModuleNode final : public runtime::ModuleNode {
   }
 
   const char* type_key() const final { return type_key_.c_str(); }
+  /*! \brief Get the property of the runtime module .*/
+  uint8_t GetProperty() const final { return runtime::property::kBinarySerializable; }
 
   void SaveToFile(const std::string& file_name, const std::string& format) final {
     std::string fmt = GetFileFormat(file_name, format);