[Dev] Refactor Backend Dispatch and Kernel Wrap Related Design

.github/workflows/ci.yml

@@ -1,6 +1,6 @@
 name: CI
 
-on: [push, pull_request]
+on: [pull_request]
 
 jobs:
   format-check:

THIRDPARTYNOTICES.txt

@@ -206,3 +206,207 @@ Notice for apache/tvm
    limitations under the License.
 
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+Notice for IST-DASLab/marlin/
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+------------------------------------------------------------------------------------

bitblas/base/roller/__init__.py

@@ -4,4 +4,4 @@
 from .rasterization import NoRasterization, Rasterization2DRow, Rasterization2DColumn  # noqa: F401
 from .hint import Hint  # noqa: F401
 from .policy import DefaultPolicy, TensorCorePolicy  # noqa: F401
-from .arch import TileDevice, CUDA  # noqa: F401
+from ..arch import TileDevice, CUDA  # noqa: F401

bitblas/base/roller/policy/default.py

@@ -9,7 +9,7 @@
 import numpy as np
 from bitblas import tvm
 
-from ..arch import TileDevice
+from ...arch import TileDevice
 from ..bestfit import BestFit
 from ..hint import Hint, Stride, TileDict
 from .common import coalesced_factor, coalesced_tensor_shape, factorize, get_all_factors

bitblas/base/roller/policy/tensorcore.py

@@ -5,7 +5,7 @@
 from typing import Dict, List, Tuple, Optional
 import numpy as np
 
-from ..arch import TileDevice
+from ...arch import TileDevice
 from ..hint import Hint, Stride, TileDict, IntrinInfo
 from ..node import PrimFuncNode
 from .common import coalesced_factor, factorize, get_all_factors

bitblas/base/utils.py

@@ -13,7 +13,7 @@
 from tvm.relax.expr import Function
 import bitblas
 from .analysis import get_root_block, get_reduction_blocks, find_var_from_func
-from bitblas.base.roller.arch import CUDA
+from bitblas.base.arch import CUDA
 from bitblas.base.roller.policy import TensorCorePolicy, DefaultPolicy
 from bitblas.gpu.matmul_analysis import get_tensorized_func_and_tags
 import tempfile

bitblas/builder/__init__.py

@@ -0,0 +1,5 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+
+from .lib_generator import LibraryGenerator  # noqa: F401
+from .wrapper import TIRWrapper  # noqa: F401

bitblas/builder/lib_generator/__init__.py

@@ -0,0 +1,78 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+from typing import Optional
+from bitblas import TileDevice
+import ctypes
+import os
+import tempfile
+import subprocess
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class LibraryGenerator(object):
+    srcpath: Optional[str] = None
+    libpath: Optional[str] = None
+    lib_code: Optional[str] = None
+
+    def __init__(self, arch: TileDevice):
+        self.arch = arch
+
+    def update_lib_code(self, lib_code: str):
+        self.lib_code = lib_code
+
+    # Assume currently we only support CUDA compilation
+    def load_lib(self):
+        return ctypes.CDLL(self.libpath)
+
+    def compile_lib(self, timeout: float = None):
+        arch = self.arch
+        src = tempfile.NamedTemporaryFile(mode="w", suffix=".cu", delete=False)
+        compute_version = arch.compute_capability
+        libpath = src.name.replace(".cu", ".so")
+
+        command = [
+            "nvcc",
+            "-std=c++17",
+            "-Xcudafe",
+            "--diag_suppress=177",
+            "--compiler-options",
+            "'-fPIC'",
+            "-lineinfo",
+            "--shared",
+            src.name,
+            "-lcuda",
+            f"-gencode=arch=compute_{compute_version},code=compute_{compute_version}",
+            "-o",
+            libpath,
+        ]
+        src.write(self.lib_code)
+        src.flush()
+        try:
+            ret = subprocess.run(command, timeout=timeout)
+        except subprocess.TimeoutExpired:
+            logger.warning(f"Compilation Timeout! {command}")
+            return None
+        if ret.returncode != 0:
+            logger.warning(f"Compilation Failed! {command}")
+            return None
+        self.srcpath = src.name
+        self.libpath = libpath
+
+    def remove_lib(self):
+        if self.libpath:
+            os.remove(self.libpath)
+        self.libpath = None
+
+    def get_source_path(self):
+        return self.srcpath
+
+    def get_lib_path(self):
+        return self.libpath
+
+    def set_lib_path(self, libpath):
+        self.libpath = libpath
+
+    def set_src_path(self, srcpath):
+        self.srcpath = srcpath

bitblas/builder/wrapper/__init__.py

@@ -0,0 +1,3 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+from .tir import TIRWrapper  # noqa: F401

bitblas/builder/wrapper/base.py

@@ -0,0 +1,10 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+from abc import ABC, abstractmethod
+
+
+class BaseWrapper(ABC):
+
+    @abstractmethod
+    def wrap(self, *args, **kwargs):
+        raise NotImplementedError