pytorch-labs · drisspg · May 17, 2025 · May 16, 2025 · May 16, 2025
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
@@ -0,0 +1,16 @@
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.6.0
+    hooks:
+    -   id: check-yaml
+    -   id: end-of-file-fixer
+    -   id: trailing-whitespace
+-   repo: https://github.com/astral-sh/ruff-pre-commit
+    # Ruff version.
+    rev: v0.11.9
+    hooks:
+      # Run the linter.
+      - id: ruff
+        args: [--fix]
+      # Run the formatter.
+      - id: ruff-format
diff --git a/README.md b/README.md
@@ -12,7 +12,7 @@ refers to hydrogen-3.
 
 [Triton]: https://github.com/triton-lang/triton
 
-> ⚠️ **Early Development Warning**  
+> ⚠️ **Early Development Warning**
 > Helion is currently in an experimental stage. You should expect bugs, incomplete features, and APIs that may change in future versions. Feedback and bug reports are welcome and appreciated!
 
 ## Example
@@ -27,13 +27,13 @@ def matmul(x: torch.Tensor, y: torch.Tensor) -> torch.Tensor:
     m, k = x.size()
     k, n = y.size()
     out = torch.empty([m, n], dtype=x.dtype, device=x.device)
-    
+
     for tile_m, tile_n in hl.tile([m, n]):
         acc = hl.zeros([tile_m, tile_n], dtype=torch.float32)
         for tile_k in hl.tile(k):
             acc = torch.addmm(acc, x[tile_m, tile_k], y[tile_k, tile_n])
         out[tile_m, tile_n] = acc
-        
+
     return out
 ```
 
@@ -204,7 +204,8 @@ Alternatively, you may install from source for development purposes:
 ```bash
 git clone https://github.com/pytorch-labs/helion.git
 cd helion
-python setup.py develop
+# To install in editable w/ required dev packages
+pip install -e .'[dev]'
 ````
 This installs Helion in "editable" mode so that changes to the source
 code take effect without needing to reinstall.

diff --git a/helion/_testing.py b/helion/_testing.py
@@ -37,7 +37,7 @@ def code_and_output(
     **kwargs: object,
 ) -> tuple[str, object]:
     if kwargs:
-        config = Config(**kwargs)
+        config = Config(**kwargs)  # pyre-ignore[6]
     elif fn.configs:
         (config,) = fn.configs
     else:

diff --git a/helion/autotuner/config_spec.py b/helion/autotuner/config_spec.py
@@ -249,7 +249,7 @@ def flat_config(self, fn: Callable[[ConfigSpecFragment], object]) -> helion.Conf
             use_yz_grid = fn(BooleanFragment())
             if config.get("l2_grouping", 1) == 1 and isinstance(block_sizes[0], list):
                 config["use_yz_grid"] = use_yz_grid
-        return helion.Config(config)
+        return helion.Config(**config)  # pyre-ignore[6]
 
 
 class BlockSizeSpec:

diff --git a/helion/runtime/config.py b/helion/runtime/config.py
@@ -16,13 +16,50 @@
 class Config(Mapping[str, object]):
     config: dict[str, object]
 
-    def __init__(self, config: object = None, **kwargs: object) -> None:
-        if config is not None:
-            assert not kwargs
-            assert isinstance(config, (dict, Config))
-            self.config = {**config}
-        else:
-            self.config = kwargs
+    def __init__(
+        self,
+        *,
+        # Core properties
+        block_sizes: list[int | list[int]] | None = None,
+        loop_orders: list[list[int]] | None = None,
+        reduction_loops: list[int | None] | None = None,
+        num_warps: int | None = None,
+        num_stages: int | None = None,
+        l2_grouping: int | None = None,
+        use_yz_grid: bool | None = None,
+        indexing: IndexingLiteral | None = None,
+        # For user-defined properties
+        **kwargs: object,
+    ) -> None:
+        """
+        Initialize a Config object.
+
+        Args:
+            block_sizes: Controls tile sizes for hl.tile invocations.
+            loop_orders: Permutes iteration order of tiles.
+            reduction_loops: Configures reduction loop behavior.
+            num_warps: Number of warps per block.
+            num_stages: Number of stages for software pipelining.
+            l2_grouping: Reorders program IDs for L2 cache locality.
+            use_yz_grid: Whether to use yz grid dimensions.
+            indexing: Indexing strategy ("pointer", "tensor_descriptor", "block_ptr").
+            **kwargs: Additional user-defined configuration parameters.
+        """
+        self.config = {}
+        core_props = {
+            "block_sizes": block_sizes,
+            "loop_orders": loop_orders,
+            "reduction_loops": reduction_loops,
+            "num_warps": num_warps,
+            "num_stages": num_stages,
+            "indexing": indexing,
+            "l2_grouping": l2_grouping,
+            "use_yz_grid": use_yz_grid,
+        }
+        for key, value in core_props.items():
+            if value is not None:
+                self.config[key] = value
+        self.config.update(kwargs)
 
     def __getitem__(self, key: str) -> object:
         return self.config[key]
@@ -56,7 +93,7 @@ def to_json(self) -> str:
     def from_json(cls, json_str: str) -> Config:
         """Create a Config object from a JSON string."""
         config_dict = json.loads(json_str)
-        return cls(config_dict)
+        return cls(**config_dict)  # Changed to use dictionary unpacking
 
     def save(self, path: str | Path) -> None:
         """Save the config to a JSON file."""
@@ -92,12 +129,12 @@ def l2_grouping(self) -> int:
         return cast("int", self.config.get("l2_grouping", 1))
 
     @property
-    def use_yz_grid(self) -> int:
+    def use_yz_grid(self) -> bool:
         return cast("bool", self.config.get("use_yz_grid", False))
 
     @property
     def indexing(self) -> IndexingLiteral:
-        return cast("IndexingLiteral", self.config.get("indexing", "pointer"))
+        return self.config.get("indexing", "pointer")  # type: ignore
 
 
 def _list_to_tuple(x: object) -> object:

diff --git a/helion/runtime/kernel.py b/helion/runtime/kernel.py
@@ -62,7 +62,9 @@ def __init__(
         self.fn = fn
         self.signature: inspect.Signature = inspect.signature(fn)
         self.settings: Settings = settings or Settings.default()
-        self.configs: list[Config] = [*map(Config, configs or ())]
+        self.configs: list[Config] = [
+            Config(**c) if isinstance(c, dict) else c for c in configs or []
+        ]
         # pyre-fixme[11]: BoundKernel undefined?
         self._bound_kernels: dict[Hashable, BoundKernel] = {}
         if any(
@@ -295,7 +297,9 @@ def to_triton_code(self, config: ConfigLike) -> str:
         :rtype: str
        """
         with self.env:
-            config = Config(config)
+            if not isinstance(config, Config):
+                # pyre-ignore[6]
+                config = Config(**config)
             self.env.config_spec.normalize(config)
             root = generate_ast(self.host_fn, config)
             return get_needed_imports(root) + unparse(root)
@@ -310,7 +314,7 @@ def compile_config(self, config: ConfigLike) -> CompiledConfig:
        :rtype: Callable[..., object]
         """
         if not isinstance(config, Config):
-            config = Config(config)
+            config = Config(**config)  # pyre-ignore[6]
         if (rv := self._compile_cache.get(config)) is not None:
             return rv
         triton_code = self.to_triton_code(config)
@@ -375,7 +379,7 @@ def set_config(self, config: ConfigLike) -> None:
         :type config: ConfigLike
         """
         if not isinstance(config, Config):
-            config = Config(config)
+            config = Config(**config)  # pyre-ignore[6]
         self._run = self.compile_config(config)
 
     def __call__(self, *args: object) -> object:

diff --git a/pyproject.toml b/pyproject.toml
@@ -21,6 +21,13 @@ dependencies = [
     "typing_extensions>=4.0.0",
 ]
 
+[project.optional-dependencies]
+dev = [
+    "expecttest",
+    "pytest",
+    "pre-commit"
+]
+
 [project.urls]
 Homepage = "https://github.com/pytorch-labs/helion"
 Issues = "https://github.com/pytorch-labs/helion/issues"
@@ -67,4 +74,3 @@ force-sort-within-sections = true
 
 [tool.setuptools]
 license-files = ["LICENSE"]
-
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,4 @@
 expecttest
 pytest
 typing_extensions
+pre-commit