Update on "Use c10 version of half/bfloat16 in executorch"

Accomplished by importing relevant files from c10 into
executorch/runtime/core/portable_type/c10, and then using `using` in
the top-level ExecuTorch headers. This approach should keep the
ExecuTorch build hermetic for embedded use cases. In the future, we
should add a CI job to ensure the c10 files stay identical to the
PyTorch ones.

Differential Revision: [D66106969](https://our.internmc.facebook.com/intern/diff/D66106969/)

[ghstack-poisoned]

Author: swolchok

.ci/scripts/__init__.py

@@ -9,8 +9,10 @@
 import logging
 import os
 import re
-from typing import Any, Dict
+import sys
+from typing import Any, Dict, List
 
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "../..")))
 from examples.models import MODEL_NAME_TO_MODEL
 
 
@@ -45,6 +47,79 @@
 }
 
 
+def extract_all_configs(data, target_os=None):
+    if isinstance(data, dict):
+        # If target_os is specified, include "xplat" and the specified branch
+        include_branches = {"xplat", target_os} if target_os else data.keys()
+        return [
+            v
+            for key, value in data.items()
+            if key in include_branches
+            for v in extract_all_configs(value, target_os)
+        ]
+    elif isinstance(data, list):
+        return [v for item in data for v in extract_all_configs(item, target_os)]
+    else:
+        return [data]
+
+
+def generate_compatible_configs(model_name: str, target_os=None) -> List[str]:
+    """
+    Generate a list of compatible benchmark configurations for a given model name and target OS.
+
+    Args:
+        model_name (str): The name of the model to generate configurations for.
+        target_os (Optional[str]): The target operating system (e.g., 'android', 'ios').
+
+    Returns:
+        List[str]: A list of compatible benchmark configurations.
+
+    Raises:
+        None
+
+    Example:
+        generate_compatible_configs('meta-llama/Llama-3.2-1B', 'ios') -> ['llama3_fb16', 'llama3_coreml_ane']
+    """
+    configs = []
+    if is_valid_huggingface_model_id(model_name):
+        if model_name.startswith("meta-llama/"):
+            # LLaMA models
+            repo_name = model_name.split("meta-llama/")[1]
+            if "qlora" in repo_name.lower():
+                configs.append("llama3_qlora")
+            elif "spinquant" in repo_name.lower():
+                configs.append("llama3_spinquant")
+            else:
+                configs.append("llama3_fb16")
+                configs.extend(
+                    [
+                        config
+                        for config in BENCHMARK_CONFIGS.get(target_os, [])
+                        if config.startswith("llama")
+                    ]
+                )
+        else:
+            # Non-LLaMA models
+            configs.append("hf_xnnpack_fp32")
+    elif model_name in MODEL_NAME_TO_MODEL:
+        # ExecuTorch in-tree non-GenAI models
+        configs.append("xnnpack_q8")
+        if target_os != "xplat":
+            # Add OS-specific configs
+            configs.extend(
+                [
+                    config
+                    for config in BENCHMARK_CONFIGS.get(target_os, [])
+                    if not config.startswith("llama")
+                ]
+            )
+    else:
+        # Skip unknown models with a warning
+        logging.warning(f"Unknown or invalid model name '{model_name}'. Skipping.")
+
+    return configs
+
+
 def parse_args() -> Any:
     """
     Parse command-line arguments.
@@ -82,6 +157,11 @@ def comma_separated(value: str):
         type=comma_separated,  # Use the custom parser for comma-separated values
         help=f"Comma-separated device names. Available devices: {list(DEVICE_POOLS.keys())}",
     )
+    parser.add_argument(
+        "--configs",
+        type=comma_separated,  # Use the custom parser for comma-separated values
+        help=f"Comma-separated benchmark configs. Available configs: {extract_all_configs(BENCHMARK_CONFIGS)}",
+    )
 
     return parser.parse_args()
 
@@ -98,11 +178,16 @@ def set_output(name: str, val: Any) -> None:
         set_output("benchmark_configs", {"include": [...]})
     """
 
-    if os.getenv("GITHUB_OUTPUT"):
-        print(f"Setting {val} to GitHub output")
-        with open(str(os.getenv("GITHUB_OUTPUT")), "a") as env:
-            print(f"{name}={val}", file=env)
-    else:
+    github_output = os.getenv("GITHUB_OUTPUT")
+    if not github_output:
+        print(f"::set-output name={name}::{val}")
+        return
+
+    try:
+        with open(github_output, "a") as env:
+            env.write(f"{name}={val}\n")
+    except PermissionError:
+        # Fall back to printing in case of permission error in unit tests
         print(f"::set-output name={name}::{val}")
 
 
@@ -123,7 +208,7 @@ def is_valid_huggingface_model_id(model_name: str) -> bool:
     return bool(re.match(pattern, model_name))
 
 
-def get_benchmark_configs() -> Dict[str, Dict]:
+def get_benchmark_configs() -> Dict[str, Dict]:  # noqa: C901
     """
     Gather benchmark configurations for a given set of models on the target operating system and devices.
 
@@ -153,48 +238,26 @@ def get_benchmark_configs() -> Dict[str, Dict]:
         }
     """
     args = parse_args()
-    target_os = args.os
     devices = args.devices
     models = args.models
+    target_os = args.os
+    target_configs = args.configs
 
     benchmark_configs = {"include": []}
 
     for model_name in models:
         configs = []
-        if is_valid_huggingface_model_id(model_name):
-            if model_name.startswith("meta-llama/"):
-                # LLaMA models
-                repo_name = model_name.split("meta-llama/")[1]
-                if "qlora" in repo_name.lower():
-                    configs.append("llama3_qlora")
-                elif "spinquant" in repo_name.lower():
-                    configs.append("llama3_spinquant")
-                else:
-                    configs.append("llama3_fb16")
-                    configs.extend(
-                        [
-                            config
-                            for config in BENCHMARK_CONFIGS.get(target_os, [])
-                            if config.startswith("llama")
-                        ]
+        configs.extend(generate_compatible_configs(model_name, target_os))
+        print(f"Discovered all supported configs for model '{model_name}': {configs}")
+        if target_configs is not None:
+            for config in target_configs:
+                if config not in configs:
+                    raise Exception(
+                        f"Unsupported config '{config}' for model '{model_name}' on '{target_os}'. Skipped.\n"
+                        f"Supported configs are: {configs}"
                     )
-            else:
-                # Non-LLaMA models
-                configs.append("hf_xnnpack_fp32")
-        elif model_name in MODEL_NAME_TO_MODEL:
-            # ExecuTorch in-tree non-GenAI models
-            configs.append("xnnpack_q8")
-            configs.extend(
-                [
-                    config
-                    for config in BENCHMARK_CONFIGS.get(target_os, [])
-                    if not config.startswith("llama")
-                ]
-            )
-        else:
-            # Skip unknown models with a warning
-            logging.warning(f"Unknown or invalid model name '{model_name}'. Skipping.")
-            continue
+            configs = target_configs
+            print(f"Using provided configs {configs} for model '{model_name}'")
 
         # Add configurations for each valid device
         for device in devices:

.ci/scripts/gather_benchmark_configs.py

@@ -0,0 +1,189 @@
+import importlib.util
+import os
+import subprocess
+import sys
+import unittest
+from unittest.mock import mock_open, patch
+
+import pytest
+
+# Dynamically import the script
+script_path = os.path.join(".ci", "scripts", "gather_benchmark_configs.py")
+spec = importlib.util.spec_from_file_location("gather_benchmark_configs", script_path)
+gather_benchmark_configs = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(gather_benchmark_configs)
+
+
+@pytest.mark.skipif(
+    sys.platform != "linux", reason="The script under test runs on Linux runners only"
+)
+class TestGatehrBenchmarkConfigs(unittest.TestCase):
+
+    def test_extract_all_configs_android(self):
+        android_configs = gather_benchmark_configs.extract_all_configs(
+            gather_benchmark_configs.BENCHMARK_CONFIGS, "android"
+        )
+        self.assertIn("xnnpack_q8", android_configs)
+        self.assertIn("qnn_q8", android_configs)
+        self.assertIn("llama3_spinquant", android_configs)
+        self.assertIn("llama3_qlora", android_configs)
+
+    def test_extract_all_configs_ios(self):
+        ios_configs = gather_benchmark_configs.extract_all_configs(
+            gather_benchmark_configs.BENCHMARK_CONFIGS, "ios"
+        )
+
+        self.assertIn("xnnpack_q8", ios_configs)
+        self.assertIn("coreml_fp16", ios_configs)
+        self.assertIn("mps", ios_configs)
+        self.assertIn("llama3_coreml_ane", ios_configs)
+        self.assertIn("llama3_spinquant", ios_configs)
+        self.assertIn("llama3_qlora", ios_configs)
+
+    def test_generate_compatible_configs_llama_model(self):
+        model_name = "meta-llama/Llama-3.2-1B"
+        target_os = "ios"
+        result = gather_benchmark_configs.generate_compatible_configs(
+            model_name, target_os
+        )
+        expected = ["llama3_fb16", "llama3_coreml_ane"]
+        self.assertEqual(result, expected)
+
+        target_os = "android"
+        result = gather_benchmark_configs.generate_compatible_configs(
+            model_name, target_os
+        )
+        expected = ["llama3_fb16"]
+        self.assertEqual(result, expected)
+
+    def test_generate_compatible_configs_quantized_llama_model(self):
+        model_name = "meta-llama/Llama-3.2-1B-Instruct-SpinQuant_INT4_EO8"
+        result = gather_benchmark_configs.generate_compatible_configs(model_name, None)
+        expected = ["llama3_spinquant"]
+        self.assertEqual(result, expected)
+
+        model_name = "meta-llama/Llama-3.2-1B-Instruct-QLORA_INT4_EO8"
+        result = gather_benchmark_configs.generate_compatible_configs(model_name, None)
+        expected = ["llama3_qlora"]
+        self.assertEqual(result, expected)
+
+    def test_generate_compatible_configs_non_genai_model(self):
+        model_name = "mv2"
+        target_os = "xplat"
+        result = gather_benchmark_configs.generate_compatible_configs(
+            model_name, target_os
+        )
+        expected = ["xnnpack_q8"]
+        self.assertEqual(result, expected)
+
+        target_os = "android"
+        result = gather_benchmark_configs.generate_compatible_configs(
+            model_name, target_os
+        )
+        expected = ["xnnpack_q8", "qnn_q8"]
+        self.assertEqual(result, expected)
+
+        target_os = "ios"
+        result = gather_benchmark_configs.generate_compatible_configs(
+            model_name, target_os
+        )
+        expected = ["xnnpack_q8", "coreml_fp16", "mps"]
+        self.assertEqual(result, expected)
+
+    def test_generate_compatible_configs_unknown_model(self):
+        model_name = "unknown_model"
+        target_os = "ios"
+        result = gather_benchmark_configs.generate_compatible_configs(
+            model_name, target_os
+        )
+        self.assertEqual(result, [])
+
+    def test_is_valid_huggingface_model_id_valid(self):
+        valid_model = "meta-llama/Llama-3.2-1B"
+        self.assertTrue(
+            gather_benchmark_configs.is_valid_huggingface_model_id(valid_model)
+        )
+
+    @patch("builtins.open", new_callable=mock_open)
+    @patch("os.getenv", return_value=None)
+    def test_set_output_no_github_env(self, mock_getenv, mock_file):
+        with patch("builtins.print") as mock_print:
+            gather_benchmark_configs.set_output("test_name", "test_value")
+            mock_print.assert_called_with("::set-output name=test_name::test_value")
+
+    def test_device_pools_contains_all_devices(self):
+        expected_devices = [
+            "apple_iphone_15",
+            "apple_iphone_15+ios_18",
+            "samsung_galaxy_s22",
+            "samsung_galaxy_s24",
+            "google_pixel_8_pro",
+        ]
+        for device in expected_devices:
+            self.assertIn(device, gather_benchmark_configs.DEVICE_POOLS)
+
+    def test_gather_benchmark_configs_cli(self):
+        args = {
+            "models": "mv2,dl3",
+            "os": "ios",
+            "devices": "apple_iphone_15",
+            "configs": None,
+        }
+
+        cmd = ["python", ".ci/scripts/gather_benchmark_configs.py"]
+        for key, value in args.items():
+            if value is not None:
+                cmd.append(f"--{key}")
+                cmd.append(value)
+
+        result = subprocess.run(cmd, capture_output=True, text=True)
+        self.assertEqual(result.returncode, 0, f"Error: {result.stderr}")
+        self.assertIn('"model": "mv2"', result.stdout)
+        self.assertIn('"model": "dl3"', result.stdout)
+        self.assertIn('"config": "coreml_fp16"', result.stdout)
+        self.assertIn('"config": "xnnpack_q8"', result.stdout)
+        self.assertIn('"config": "mps"', result.stdout)
+
+    def test_gather_benchmark_configs_cli_specified_configs(self):
+        args = {
+            "models": "mv2,dl3",
+            "os": "ios",
+            "devices": "apple_iphone_15",
+            "configs": "coreml_fp16,xnnpack_q8",
+        }
+
+        cmd = ["python", ".ci/scripts/gather_benchmark_configs.py"]
+        for key, value in args.items():
+            if value is not None:
+                cmd.append(f"--{key}")
+                cmd.append(value)
+
+        result = subprocess.run(cmd, capture_output=True, text=True)
+        self.assertEqual(result.returncode, 0, f"Error: {result.stderr}")
+        self.assertIn('"model": "mv2"', result.stdout)
+        self.assertIn('"model": "dl3"', result.stdout)
+        self.assertIn('"config": "coreml_fp16"', result.stdout)
+        self.assertIn('"config": "xnnpack_q8"', result.stdout)
+        self.assertNotIn('"config": "mps"', result.stdout)
+
+    def test_gather_benchmark_configs_cli_specified_configs_raise(self):
+        args = {
+            "models": "mv2,dl3",
+            "os": "ios",
+            "devices": "apple_iphone_15",
+            "configs": "qnn_q8",
+        }
+
+        cmd = ["python", ".ci/scripts/gather_benchmark_configs.py"]
+        for key, value in args.items():
+            if value is not None:
+                cmd.append(f"--{key}")
+                cmd.append(value)
+
+        result = subprocess.run(cmd, capture_output=True, text=True)
+        self.assertEqual(result.returncode, 1, f"Error: {result.stderr}")
+        self.assertIn("Unsupported config 'qnn_q8'", result.stderr)
+
+
+if __name__ == "__main__":
+    unittest.main()