fix: Upgrade Torch version, enable options

- Upgrade Torch version across the stack
- Update Dynamo sample with advanced usage to indicate usage of new
`options` argument in `torch.compile`
- Enable options argument in `torch.compile` including improved input
handling in the default torch_tensorrt backend

Author: gs-olive

.bazelrc

@@ -22,7 +22,7 @@
 # +------------------------------------------------------------+
 # Enable colorful output of GCC
 build --cxxopt="-fdiagnostics-color=always"
-build --cxxopt='-std=c++14'
+build --cxxopt='-std=c++17'
 #build --linkopt="-Wl,--no-as-needed"
 
 

.circleci/config.yml

@@ -269,10 +269,10 @@ commands:
     parameters:
       torch-build:
         type: string
-        default: "2.1.0.dev20230419+cu118"
+        default: "2.1.0.dev20230601+cu118"
       torchvision-build:
         type: string
-        default: "0.16.0.dev20230419+cu118"
+        default: "0.16.0.dev20230601+cu118"
       torch-build-index:
         type: string
         default: "https://download.pytorch.org/whl/nightly/cu118"
@@ -1350,10 +1350,10 @@ parameters:
   # Nightly platform config
   torch-build:
     type: string
-    default: "2.1.0.dev20230419+cu118"
+    default: "2.1.0.dev20230601+cu118"
   torchvision-build:
     type: string
-    default: "0.16.0.dev20230419+cu118"
+    default: "0.16.0.dev20230601+cu118"
   torch-build-index:
     type: string
     default: "https://download.pytorch.org/whl/nightly/cu118"

README.md

@@ -116,7 +116,7 @@ torch.jit.save(trt_ts_module, "trt_torchscript_module.ts") # save the TRT embedd
 These are the following dependencies used to verify the testcases. Torch-TensorRT can work with other versions, but the tests are not guaranteed to pass.
 
 - Bazel 5.2.0
-- Libtorch 2.1.0.dev20230419 (built with CUDA 11.8)
+- Libtorch 2.1.0.dev20230601 (built with CUDA 11.8)
 - CUDA 11.8
 - cuDNN 8.8.0
 - TensorRT 8.6.0

WORKSPACE

@@ -51,17 +51,17 @@ new_local_repository(
 http_archive(
     name = "libtorch",
     build_file = "@//third_party/libtorch:BUILD",
-    sha256 = "1a526a9cd19c1015674d26921dbb94bcd2d632a6f9c431a21c43f4e24768d834",
+    sha256 = "c8407ae3462c344ae3814e82023e22ece759ebe75023f35bdf62e9c0a7e79035",
     strip_prefix = "libtorch",
-    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-cxx11-abi-shared-with-deps-2.1.0.dev20230419%2Bcu118.zip"],
+    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-cxx11-abi-shared-with-deps-2.1.0.dev20230601%2Bcu118.zip"],
 )
 
 http_archive(
     name = "libtorch_pre_cxx11_abi",
     build_file = "@//third_party/libtorch:BUILD",
-    sha256 = "60c5912a5085a6a7073b3804b10d41d6cc054693bbeb7a45e0247050c2837bac",
+    sha256 = "76f983bd6d784cc0a95c679034d297abe36911c16b2188498b13a9028177e28e",
     strip_prefix = "libtorch",
-    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-shared-with-deps-2.1.0.dev20230419%2Bcu118.zip"],
+    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-shared-with-deps-2.1.0.dev20230601%2Bcu118.zip"],
 )
 
 # Download these tarballs manually from the NVIDIA website

examples/dynamo/dynamo_compile_advanced_usage.py

@@ -9,7 +9,6 @@
 # ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 import torch
-from torch_tensorrt.dynamo.backend import create_backend
 from torch_tensorrt.fx.lower_setting import LowerPrecision
 
 # %%
@@ -39,9 +38,9 @@ def forward(self, x: torch.Tensor, y: torch.Tensor):
 
 # Next, we compile the model using torch.compile
 # For the default settings, we can simply call torch.compile
-# with the backend "tensorrt", and run the model on an
+# with the backend "torch_tensorrt", and run the model on an
 # input to cause compilation, as so:
-optimized_model = torch.compile(model, backend="tensorrt")
+optimized_model = torch.compile(model, backend="torch_tensorrt")
 optimized_model(*sample_inputs)
 
 # %%
@@ -58,18 +57,23 @@ def forward(self, x: torch.Tensor, y: torch.Tensor):
 # %%
 
 # If we want to customize certain options in the backend,
-# but still use the torch.compile call directly, we can call the
-# convenience/helper function create_backend to create a custom backend
-# which has been pre-populated with certain keys
-custom_backend = create_backend(
-    lower_precision=LowerPrecision.FP16,
-    debug=True,
-    min_block_size=2,
-    torch_executed_ops={},
-)
+# but still use the torch.compile call directly, we can provide
+# custom options to the backend via the "options" keyword
+# which takes in a dictionary mapping options to values.
+#
+# For accepted backend options, see the CompilationSettings dataclass:
+# py/torch_tensorrt/dynamo/backend/_settings.py
+backend_kwargs = {
+    "lower_precision": LowerPrecision.FP16,
+    "debug": True,
+    "min_block_size": 2,
+    "torch_executed_ops": {"torch.ops.aten.sub.Tensor"},
+}
 
 # Run the model on an input to cause compilation, as so:
-optimized_model_custom = torch.compile(model_half, backend=custom_backend)
+optimized_model_custom = torch.compile(
+    model_half, backend="torch_tensorrt", options=backend_kwargs
+)
 optimized_model_custom(*sample_inputs_half)
 
 # %%

py/requirements.txt

@@ -2,7 +2,7 @@ numpy
 packaging
 pybind11==2.6.2
 --extra-index-url https://download.pytorch.org/whl/nightly/cu118
-torch==2.1.0.dev20230419+cu118
-torchvision==0.16.0.dev20230419+cu118
+torch==2.1.0.dev20230601+cu118
+torchvision==0.16.0.dev20230601+cu118
 --extra-index-url https://pypi.ngc.nvidia.com
 tensorrt==8.6.0

py/torch_tensorrt/dynamo/backend/backends.py

@@ -2,6 +2,7 @@
 import torch
 import traceback
 from functools import partial
+from dataclasses import replace, fields
 import torch._dynamo as td
 
 from torch_tensorrt.dynamo.backend._settings import CompilationSettings
@@ -25,7 +26,15 @@ def torch_tensorrt_backend(
     gm: torch.fx.GraphModule,
     sample_inputs: Sequence[torch.Tensor],
     settings: CompilationSettings = CompilationSettings(),
+    **kwargs
 ):
+    # If the user specifies keyword args, overwrite those fields in settings
+    # Validate all specified kwargs to ensure they are true fields of the dataclass
+    if kwargs:
+        valid_attrs = {attr.name for attr in fields(settings)}
+        valid_kwargs = {k: v for k, v in kwargs.items() if k in valid_attrs}
+        settings = replace(settings, **valid_kwargs)
+
     DEFAULT_BACKEND = aot_torch_tensorrt_aten_backend
 
     return DEFAULT_BACKEND(gm, sample_inputs, settings=settings)

toolchains/ci_workspaces/WORKSPACE.x86_64.release.rhel

@@ -56,17 +56,17 @@ new_local_repository(
 http_archive(
     name = "libtorch",
     build_file = "@//third_party/libtorch:BUILD",
-    sha256 = "1a526a9cd19c1015674d26921dbb94bcd2d632a6f9c431a21c43f4e24768d834",
+    sha256 = "c8407ae3462c344ae3814e82023e22ece759ebe75023f35bdf62e9c0a7e79035",
     strip_prefix = "libtorch",
-    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-cxx11-abi-shared-with-deps-2.1.0.dev20230419%2Bcu118.zip"],
+    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-cxx11-abi-shared-with-deps-2.1.0.dev20230601%2Bcu118.zip"],
 )
 
 http_archive(
     name = "libtorch_pre_cxx11_abi",
     build_file = "@//third_party/libtorch:BUILD",
-    sha256 = "60c5912a5085a6a7073b3804b10d41d6cc054693bbeb7a45e0247050c2837bac",
+    sha256 = "76f983bd6d784cc0a95c679034d297abe36911c16b2188498b13a9028177e28e",
     strip_prefix = "libtorch",
-    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-shared-with-deps-2.1.0.dev20230419%2Bcu118.zip"],
+    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-shared-with-deps-2.1.0.dev20230601%2Bcu118.zip"],
 )
 
 ####################################################################################

toolchains/ci_workspaces/WORKSPACE.x86_64.release.ubuntu

@@ -56,17 +56,17 @@ new_local_repository(
 http_archive(
     name = "libtorch",
     build_file = "@//third_party/libtorch:BUILD",
-    sha256 = "1a526a9cd19c1015674d26921dbb94bcd2d632a6f9c431a21c43f4e24768d834",
+    sha256 = "c8407ae3462c344ae3814e82023e22ece759ebe75023f35bdf62e9c0a7e79035",
     strip_prefix = "libtorch",
-    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-cxx11-abi-shared-with-deps-2.1.0.dev20230419%2Bcu118.zip"],
+    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-cxx11-abi-shared-with-deps-2.1.0.dev20230601%2Bcu118.zip"],
 )
 
 http_archive(
     name = "libtorch_pre_cxx11_abi",
     build_file = "@//third_party/libtorch:BUILD",
-    sha256 = "60c5912a5085a6a7073b3804b10d41d6cc054693bbeb7a45e0247050c2837bac",
+    sha256 = "76f983bd6d784cc0a95c679034d297abe36911c16b2188498b13a9028177e28e",
     strip_prefix = "libtorch",
-    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-shared-with-deps-2.1.0.dev20230419%2Bcu118.zip"],
+    urls = ["https://download.pytorch.org/libtorch/nightly/cu118/libtorch-shared-with-deps-2.1.0.dev20230601%2Bcu118.zip"],
 )
 
 ####################################################################################