File size: 5,631 Bytes
4ba564c |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 |
import abc
import hashlib
import os
import tempfile
from pathlib import Path
from ..common.build import _build
from .cache import get_cache_manager
class DriverBase(metaclass=abc.ABCMeta):
CUDA = 0
HIP = 1
@staticmethod
def third_party_dir():
return os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", "third_party")
def __init__(self) -> None:
pass
# -----------------------------
# CUDA
# -----------------------------
class CudaUtils(object):
def __new__(cls):
if not hasattr(cls, "instance"):
cls.instance = super(CudaUtils, cls).__new__(cls)
return cls.instance
def __init__(self):
dirname = os.path.dirname(os.path.realpath(__file__))
src = Path(os.path.join(dirname, "backends", "cuda.c")).read_text()
key = hashlib.md5(src.encode("utf-8")).hexdigest()
cache = get_cache_manager(key)
fname = "cuda_utils.so"
cache_path = cache.get_file(fname)
if cache_path is None:
with tempfile.TemporaryDirectory() as tmpdir:
src_path = os.path.join(tmpdir, "main.c")
with open(src_path, "w") as f:
f.write(src)
so = _build("cuda_utils", src_path, tmpdir)
with open(so, "rb") as f:
cache_path = cache.put(f.read(), fname, binary=True)
import importlib.util
spec = importlib.util.spec_from_file_location("cuda_utils", cache_path)
mod = importlib.util.module_from_spec(spec)
spec.loader.exec_module(mod)
self.load_binary = mod.load_binary
self.get_device_properties = mod.get_device_properties
self.CUtensorMapDataType = mod.CUtensorMapDataType
self.CUtensorMapInterleave = mod.CUtensorMapInterleave
self.CUtensorMapSwizzle = mod.CUtensorMapSwizzle
self.CUtensorMapL2promotion = mod.CUtensorMapL2promotion
self.CUtensorMapFloatOOBfill = mod.CUtensorMapFloatOOBfill
self.cuTensorMapEncodeTiled = mod.cuTensorMapEncodeTiled
self.cuMemAlloc = mod.cuMemAlloc
self.cuMemcpyHtoD = mod.cuMemcpyHtoD
self.cuMemFree = mod.cuMemFree
self.cuOccupancyMaxActiveClusters = mod.cuOccupancyMaxActiveClusters
class CudaDriver(DriverBase):
def __new__(cls):
if not hasattr(cls, "instance"):
cls.instance = super(CudaDriver, cls).__new__(cls)
return cls.instance
def __init__(self):
self.utils = CudaUtils()
self.backend = self.CUDA
# -----------------------------
# HIP
# -----------------------------
class HIPUtils(object):
def __new__(cls):
if not hasattr(cls, "instance"):
cls.instance = super(HIPUtils, cls).__new__(cls)
return cls.instance
def __init__(self):
dirname = os.path.dirname(os.path.realpath(__file__))
src = Path(os.path.join(dirname, "backends", "hip.c")).read_text()
key = hashlib.md5(src.encode("utf-8")).hexdigest()
cache = get_cache_manager(key)
fname = "hip_utils.so"
cache_path = cache.get_file(fname)
if cache_path is None:
with tempfile.TemporaryDirectory() as tmpdir:
src_path = os.path.join(tmpdir, "main.c")
with open(src_path, "w") as f:
f.write(src)
so = _build("hip_utils", src_path, tmpdir)
with open(so, "rb") as f:
cache_path = cache.put(f.read(), fname, binary=True)
import importlib.util
spec = importlib.util.spec_from_file_location("hip_utils", cache_path)
mod = importlib.util.module_from_spec(spec)
spec.loader.exec_module(mod)
self.load_binary = mod.load_binary
self.get_device_properties = mod.get_device_properties
class HIPDriver(DriverBase):
def __new__(cls):
if not hasattr(cls, "instance"):
cls.instance = super(HIPDriver, cls).__new__(cls)
return cls.instance
def __init__(self):
self.utils = HIPUtils()
self.backend = self.HIP
class UnsupportedDriver(DriverBase):
def __new__(cls):
if not hasattr(cls, "instance"):
cls.instance = super(UnsupportedDriver, cls).__new__(cls)
return cls.instance
def __init__(self):
self.utils = None
self.backend = None
# -----------------------------
# Driver
# -----------------------------
class LazyProxy:
def __init__(self, init_fn):
self._init_fn = init_fn
self._obj = None
def _initialize_obj(self):
if self._obj is None:
self._obj = self._init_fn()
def __getattr__(self, name):
self._initialize_obj()
return getattr(self._obj, name)
def __setattr__(self, name, value):
if name in ["_init_fn", "_obj"]:
super().__setattr__(name, value)
else:
self._initialize_obj()
setattr(self._obj, name, value)
def __delattr__(self, name):
self._initialize_obj()
delattr(self._obj, name)
def __repr__(self):
if self._obj is None:
return f"<{self.__class__.__name__} for {self._init_fn} not yet initialized>"
return repr(self._obj)
def __str__(self):
self._initialize_obj()
return str(self._obj)
def initialize_driver():
import torch
if torch.version.hip is not None:
return HIPDriver()
elif torch.cuda.is_available():
return CudaDriver()
else:
return UnsupportedDriver()
driver = LazyProxy(initialize_driver)
|