chore: tri state of cuda graphs mode

core/runtime/TRTEngine.cpp

@@ -213,10 +213,6 @@ TRTEngine::TRTEngine(
   LOG_DEBUG(*this);
 }
 
-void TRTEngine::set_whole_cudagraphs(bool enable) {
-  whole_cudagraphs = enable;
-}
-
 TRTEngine::~TRTEngine() {
   trt_engine_profiler.reset();
   exec_ctx.reset();

core/runtime/TRTEngine.h

@@ -87,7 +87,6 @@ struct TRTEngine : torch::CustomClassHolder {
   bool set_device_memory_budget(int64_t budget);
   int64_t get_streamable_device_memory_budget();
   int64_t get_automatic_device_memory_budget();
-  void set_whole_cudagraphs(bool enable);
   std::vector<at::Tensor> infer_outputs(std::vector<std::vector<int64_t>> input_shapes);
   friend std::ostream& operator<<(std::ostream& os, const TRTEngine& engine);
   static const char BINDING_DELIM = '%';
@@ -104,13 +103,12 @@ struct TRTEngine : torch::CustomClassHolder {
   std::vector<at::Tensor> output_buffers = {};
   std::string shape_key;
   bool prev_cudagraphs_enabled = false;
-  bool whole_cudagraphs = false;
   // TODO: Implement a call method
   // c10::List<at::Tensor> Run(c10::List<at::Tensor> inputs);
 
   void set_profiling_paths();
 #ifndef NDEBUG
-  bool profile_execution = true;
+  bool profile_execution = false;
 #else
   bool profile_execution = false;
 #endif

core/runtime/execute_engine.cpp

@@ -113,7 +113,7 @@ std::vector<at::Tensor> execute_engine(std::vector<at::Tensor> inputs, c10::intr
     LOG_INFO("" << log_info);
     compiled_engine->cudagraph.enable_debug_mode();
   }
-  bool cudagraphs_enabled = (!compiled_engine->whole_cudagraphs && CUDAGRAPHS_MODE);
+  bool cudagraphs_enabled = (CUDAGRAPHS_MODE == SUBGRAPH_CUDAGRAPHS);
 
   // Whether cudagraphs needs to record the graph on this pass
   // Cudagraphs record is required if cudagraphs_enabled is switched to True regardless of shape change

core/runtime/register_jit_hooks.cpp

@@ -87,7 +87,6 @@ static auto TORCHTRT_UNUSED TRTEngineTSRegistrtion =
         .def("dump_engine_layer_info_to_file", &TRTEngine::dump_engine_layer_info_to_file)
         .def("dump_engine_layer_info", &TRTEngine::dump_engine_layer_info)
         .def("get_engine_layer_info", &TRTEngine::get_engine_layer_info)
-        .def("set_whole_cudagraphs", &TRTEngine::set_whole_cudagraphs)
         .def("infer_outputs", &TRTEngine::infer_outputs)
         .def_property(
             "device_memory_budget",
@@ -112,8 +111,10 @@ TORCH_LIBRARY(tensorrt, m) {
   m.def("set_multi_device_safe_mode", [](bool multi_device_safe_mode) -> void {
     MULTI_DEVICE_SAFE_MODE = multi_device_safe_mode;
   });
-  m.def("get_cudagraphs_mode", []() -> bool { return CUDAGRAPHS_MODE; });
-  m.def("set_cudagraphs_mode", [](bool cudagraphs_mode) -> void { CUDAGRAPHS_MODE = cudagraphs_mode; });
+  m.def("get_cudagraphs_mode", []() -> int64_t { return CUDAGRAPHS_MODE; });
+  m.def("set_cudagraphs_mode", [](int64_t cudagraphs_mode) -> void {
+    CUDAGRAPHS_MODE = CudaGraphsMode(cudagraphs_mode);
+  });
   m.def("set_logging_level", [](int64_t level) -> void {
     util::logging::get_logger().set_reportable_log_level(util::logging::LogLevel(level));
   });

core/runtime/runtime.cpp

@@ -8,7 +8,7 @@ namespace core {
 namespace runtime {
 
 bool MULTI_DEVICE_SAFE_MODE = false;
-bool CUDAGRAPHS_MODE = false;
+CudaGraphsMode CUDAGRAPHS_MODE = STANDARD;
 
 c10::optional<RTDevice> get_most_compatible_device(
     const RTDevice& target_device,
@@ -130,11 +130,11 @@ void set_multi_device_safe_mode(bool multi_device_safe_mode) {
   MULTI_DEVICE_SAFE_MODE = multi_device_safe_mode;
 }
 
-bool get_cudagraphs_mode() {
+CudaGraphsMode get_cudagraphs_mode() {
   return CUDAGRAPHS_MODE;
 }
 
-void set_cudagraphs_mode(bool cudagraphs_mode) {
+void set_cudagraphs_mode(CudaGraphsMode cudagraphs_mode) {
   CUDAGRAPHS_MODE = cudagraphs_mode;
 }
 

core/runtime/runtime.h

@@ -18,7 +18,14 @@ namespace runtime {
 using EngineID = int64_t;
 const std::string ABI_VERSION = "6";
 extern bool MULTI_DEVICE_SAFE_MODE;
-extern bool CUDAGRAPHS_MODE;
+
+typedef enum {
+  STANDARD = 0,
+  SUBGRAPH_CUDAGRAPHS,
+  WHOLE_GRAPH_CUDAGRAPHS,
+} CudaGraphsMode;
+
+extern CudaGraphsMode CUDAGRAPHS_MODE;
 
 typedef enum {
   ABI_TARGET_IDX = 0,
@@ -51,9 +58,9 @@ bool get_multi_device_safe_mode();
 
 void set_multi_device_safe_mode(bool multi_device_safe_mode);
 
-bool get_cudagraphs_mode();
+CudaGraphsMode get_cudagraphs_mode();
 
-void set_cudagraphs_mode(bool cudagraphs_mode);
+void set_cudagraphs_mode(CudaGraphsMode cudagraphs_mode);
 
 class DeviceList {
   using DeviceMap = std::unordered_map<int, RTDevice>;

py/torch_tensorrt/dynamo/runtime/_PythonTorchTensorRTModule.py

@@ -107,8 +107,6 @@ def __init__(
         self.engine = None
         self.weight_name_map = weight_name_map
         self.target_platform = Platform.current_platform()
-        # Check if CUDA graph capture is enabled in the parent node
-        self.whole_cudagraphs = False
         # Previous cuda graphs state
         self.prev_cudagraphs_enabled = False
 
@@ -151,14 +149,6 @@ def set_default_device_memory_budget(self) -> int:
         logger.debug(f"Weight streaming budget set to {budget_bytes}B")
         return self._set_device_memory_budget(budget_bytes)
 
-    def set_whole_cudagraphs(self, enable: bool) -> None:
-        """
-        When the global CUDA graphs mode is enabled, the parent wrapper module handles all
-        CUDA graph recording and replay. Therefore, any child modules must disable their
-        own CUDA graph functionality to avoid conflicts.
-        """
-        self.whole_cudagraphs = enable
-
     def setup_engine(self) -> None:
         assert (
             self.target_platform == Platform.current_platform()
@@ -257,10 +247,8 @@ def forward(self, *inputs: torch.Tensor) -> torch.Tensor | Tuple[torch.Tensor, .
         ):
             self._check_initialized()
 
-            cudagraphs_enabled = (
-                torch_tensorrt.runtime.get_cudagraphs_mode()
-                and not self.whole_cudagraphs
-            )
+            cudagraphs_enabled = torch_tensorrt.runtime.get_cudagraphs_mode()
+
             # Cudagraphs record is required if cudagraphs_enabled is switched to True regardless of shape change
             need_cudagraphs_record = cudagraphs_enabled and (
                 (not self.prev_cudagraphs_enabled)

py/torch_tensorrt/dynamo/runtime/_TorchTensorRTModule.py

@@ -195,14 +195,6 @@ def set_device_memory_budget(self, budget_bytes: int) -> int:
 
         return budget_bytes
 
-    def set_whole_cudagraphs(self, enable: bool) -> None:
-        """
-        When the global CUDA graphs mode is enabled, the parent wrapper module handles all
-        CUDA graph recording and replay. Therefore, any child modules must disable their
-        own CUDA graph functionality to avoid conflicts.
-        """
-        self.engine.set_whole_cudagraphs(enable)
-
     def setup_engine(self) -> None:
         """
         Setup engine for a module which has deferred engine setup.