Add torchbench exports.

models/turbine_models/custom_models/torchbench/README.md

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+# SHARK torchbench exports and benchmarks
+
+### Setup
+
+ - pip install torch+rocm packages:
+```shell
+pip install --pre torch==2.5.0.dev20240801+rocm6.1 torchvision==0.20.0.dev20240801+rocm6.1 torchaudio==2.4.0.dev20240801%2Brocm6.1 --index-url https://download.pytorch.org/whl/nightly/rocm6.1
+
+```
+ - Workaround amdsmi error in pre-release pytorch+rocm:
+```shell
+sudo apt install amd-smi-lib
+sudo chown -R $USER:$USER /opt/rocm/share/amd_smi
+python3 -m pip install /opt/rocm/share/amd_smi
+```
+ - Clone torch and expose benchmarking code as a relative module:
+```shell
+git clone https://github.com/pytorch/pytorch
+cd pytorch/benchmarks
+touch __init__.py
+cd ../..
+```
+ - Clone and install pytorch benchmark modules:
+```shell
+git clone https://github.com/pytorch/benchmark
+cd benchmark
+python3 install.py --models BERT_pytorch Background_Matting LearningToPaint alexnet dcgan densenet121 hf_Albert hf_Bart hf_Bert hf_GPT2 hf_T5 mnasnet1_0 mobilenet_v2 mobilenet_v3_large nvidia_deeprecommender pytorch_unet resnet18 resnet50 resnet50_32x4d shufflenet_v2_x1_0 squeezenet1_1 timm_nfnet timm_efficientnet timm_regnet timm_resnest timm_vision_transformer timm_vovnet vgg16
+pip install -e .
+cd ..
+```
+
+### Export and compile
+
+```shell
+python ./export.py --model_id=All --target=gfx942 --device=hip --compile_to=vmfb --accuracy --inference
+```

models/turbine_models/custom_models/torchbench/cmd_opts.py

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+import argparse
+import os
+from pathlib import Path
+
+
+def path_expand(s):
+    return Path(s).expanduser().resolve()
+
+
+def is_valid_file(arg):
+    if not os.path.exists(arg):
+        return None
+    else:
+        return arg
+
+
+# Note: this is where command-line options for the scripts in this directory
+# are defined along with their defaults. Thus, they should not be referenced
+# within modelling or inference code, only at the entry point to the script.
+
+# We should consider separating out the options that are "model configs" from
+# the options that control the compiler, runtime, and script behavior,
+# when applicable, as the former would best be kept in a separate
+# config or imported from huggingface.
+
+p = argparse.ArgumentParser(
+    description=__doc__, formatter_class=argparse.ArgumentDefaultsHelpFormatter
+)
+
+##############################################################################
+# general options
+##############################################################################
+
+p.add_argument(
+    "--hf_auth_token",
+    type=str,
+    help="The Hugging Face auth token, if required",
+    default=None,
+)
+p.add_argument(
+    "--model_id",
+    type=str,
+    help="model ID as it appears in the torchbench models text file lists, or 'all' for batch export",
+    default="all",
+)
+p.add_argument(
+    "--external_weights_dir",
+    type=str,
+    default="",
+    help="Path to external weights file, for jobs with one weights filepath. When importing, this is used to specify where to save the model weights, and at runtime, this is used to specify where to load the model weights from.",
+)
+p.add_argument(
+    "--vmfbs_dir", type=str, default="", help="path to vmfb containing compiled module"
+)
+p.add_argument(
+    "--benchmark",
+    type=str,
+    default=None,
+    help="A comma-separated list of submodel IDs for which to report benchmarks for, or 'all' for all components.",
+)
+p.add_argument(
+    "--save_outputs",
+    type=str,
+    default=None,
+    help="A comma-separated list of submodel IDs for which to save output .npys for, or 'all' for all components.",
+)
+p.add_argument("--compile_to", type=str, default="mlir", help="torch, linalg, vmfb")
+p.add_argument(
+    "--external_weights",
+    type=str,
+    default=None,
+    choices=["safetensors", "irpa", "gguf", None],
+    help="Externalizes model weights from the torch dialect IR and its successors",
+)
+
+##############################################################################
+# Modeling and Export Options
+#    These options are used to control model defining parameters.
+#    These are MLIR - changing variables! If you change them, you will need
+#    to import/download and recompile the model.
+##############################################################################
+
+p.add_argument("--batch_size", type=int, default=1, help="Batch size for inference")
+p.add_argument(
+    "--precision",
+    type=str,
+    default="fp16",
+    help="Precision of Stable Diffusion weights and graph.",
+)
+p.add_argument(
+    "--decomp_attn",
+    default=False,
+    action="store_true",
+    help="Decompose attention at fx graph level",
+)
+
+# See --external_weight_path and --external_weight_dir to specify where to save the model weights.
+
+p.add_argument(
+    "--compare_vs_torch",
+    action="store_true",
+    help="Runs both turbine vmfb and a torch model to compare results",
+)
+p.add_argument(
+    "--input_mlir",
+    type=str,
+    default=None,
+    help="Path to input mlir file to compile. Comma-separate paths to provide more than one input to pipelines.",
+)
+
+
+##############################################################################
+# IREE Compiler Options
+##############################################################################
+
+p.add_argument(
+    "--device",
+    type=str,
+    default="local-task",
+    help="local-task, local-sync, vulkan://0, rocm://0, cuda://0, etc.",
+)
+p.add_argument(
+    "--target",
+    type=str,
+    default="gfx942",
+    help="Usually a rocm chip arch or llvmcpu target triple, e.g. gfx942 or x86_64-linux-gnu.",
+)
+p.add_argument("--ireec_flags", type=str, default="", help="extra iree-compile options")
+p.add_argument(
+    "--attn_spec",
+    type=str,
+    default=None,
+    help="extra iree-compile options for models with sdpa ops.",
+)
+
+
+args, unknown = p.parse_known_args()