Add lowering info logic

Signed-off-by: Arvind Sridhar <[email protected]>

Author: ArvindSridhar

core/compiler.h

@@ -19,7 +19,7 @@ struct CompileSpec {
   partitioning::PartitionInfo partition_info;
 };
 
-bool CheckMethodOperatorSupport(const torch::jit::script::Module& mod, std::string method_name);
+bool CheckMethodOperatorSupport(const torch::jit::script::Module& mod, std::string method_name, CompileSpec cfg);
 
 std::string ConvertGraphToTRTEngine(const torch::jit::script::Module& mod, std::string method_name, CompileSpec cfg);
 

core/lowering/lowering.h

@@ -17,7 +17,7 @@ struct LowerInfo {
   bool disable_cse = false;
   std::vector<std::string> forced_fallback_modules;
   friend std::ostream& operator<<(std::ostream& os, const LowerInfo& l);
-}
+};
 
 void LowerBlock(torch::jit::Block* b);
 void LowerGraph(std::shared_ptr<torch::jit::Graph>& g, LowerInfo lower_info);

cpp/api/include/trtorch/trtorch.h

@@ -577,6 +577,9 @@ struct TRTORCH_API CompileSpec {
     /// A list of names of operations that will explicitly run in PyTorch
     std::vector<std::string> forced_fallback_ops;
 
+    /// A list of names of modules that will explicitly run in PyTorch
+    std::vector<std::string> forced_fallback_modules;
+
     /**
      * @brief Construct a default Torch Fallback object, fallback will be off
      */
@@ -781,7 +784,7 @@ TRTORCH_API void dump_build_info();
  *
  * @returns bool: Method is supported by TRTorch
  */
-TRTORCH_API bool CheckMethodOperatorSupport(const torch::jit::Module& module, std::string method_name);
+TRTORCH_API bool CheckMethodOperatorSupport(const torch::jit::Module& module, std::string method_name, CompileSpec info);
 
 /**
  * @brief Compile a TorchScript module for NVIDIA GPUs using TensorRT

cpp/api/src/compile_spec.cpp

@@ -375,6 +375,7 @@ core::CompileSpec to_internal_compile_spec(CompileSpec external) {
   internal.partition_info.enabled = external.torch_fallback.enabled;
   internal.partition_info.min_block_size = external.torch_fallback.min_block_size;
   internal.partition_info.forced_fallback_operators = external.torch_fallback.forced_fallback_ops;
+  internal.lower_info.forced_fallback_modules = external.torch_fallback.forced_fallback_modules;
 
   switch (external.device.device_type) {
     case CompileSpec::Device::DeviceType::kDLA:

cpp/api/src/trtorch.cpp

@@ -11,8 +11,8 @@ namespace trtorch {
 core::CompileSpec to_internal_compile_spec(CompileSpec external);
 core::runtime::CudaDevice to_internal_cuda_device(CompileSpec::Device device);
 
-bool CheckMethodOperatorSupport(const torch::jit::script::Module& module, std::string method_name) {
-  return core::CheckMethodOperatorSupport(module, method_name);
+bool CheckMethodOperatorSupport(const torch::jit::script::Module& module, std::string method_name, CompileSpec info) {
+  return core::CheckMethodOperatorSupport(module, method_name, to_internal_compile_spec(info));
 }
 
 std::string ConvertGraphToTRTEngine(