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# Owner(s): ["module: inductor"]
import os
import sys
import unittest
import torch
import torch._dynamo
import torch.utils.cpp_extension
from torch._C import FileCheck
try:
from extension_backends.cpp.extension_codegen_backend import ( # @manual=fbcode//caffe2/test/inductor/extension_backends:extension_codegen_backend # noqa: B950
ExtensionCppWrapperCodegen,
ExtensionScheduling,
ExtensionWrapperCodegen,
)
except ImportError:
from .extension_backends.cpp.extension_codegen_backend import (
ExtensionCppWrapperCodegen,
ExtensionScheduling,
ExtensionWrapperCodegen,
)
from filelock import FileLock, Timeout
import torch._inductor.config as config
from torch._inductor import cpu_vec_isa, metrics
from torch._inductor.codegen import cpp_utils
from torch._inductor.codegen.common import (
get_scheduling_for_device,
get_wrapper_codegen_for_device,
register_backend_for_device,
)
from torch.testing._internal.common_utils import IS_FBCODE, IS_MACOS, xfailIfS390X
try:
try:
from . import test_torchinductor
except ImportError:
import test_torchinductor # @manual=fbcode//caffe2/test/inductor:test_inductor-library
except unittest.SkipTest:
if __name__ == "__main__":
sys.exit(0)
raise
run_and_get_cpp_code = test_torchinductor.run_and_get_cpp_code
TestCase = test_torchinductor.TestCase
@xfailIfS390X
class BaseExtensionBackendTests(TestCase):
module = None
# Use a lock file so that only one test can build this extension at a time
lock_file = "extension_device.lock"
lock = FileLock(lock_file)
@classmethod
def setUpClass(cls):
super().setUpClass()
try:
cls.lock.acquire(timeout=600)
except Timeout:
# This shouldn't happen, still attempt to build the extension anyway
pass
# Build Extension
torch.testing._internal.common_utils.remove_cpp_extensions_build_root()
source_file_path = os.path.dirname(os.path.abspath(__file__))
source_file = os.path.join(
source_file_path, "extension_backends/cpp/extension_device.cpp"
)
cls.module = torch.utils.cpp_extension.load(
name="extension_device",
sources=[
str(source_file),
],
extra_cflags=["-g"],
verbose=True,
)
@classmethod
def tearDownClass(cls):
cls._stack.close()
super().tearDownClass()
torch.testing._internal.common_utils.remove_cpp_extensions_build_root()
if os.path.exists(cls.lock_file):
os.remove(cls.lock_file)
cls.lock.release()
def setUp(self):
torch._dynamo.reset()
super().setUp()
# cpp extensions use relative paths. Those paths are relative to
# this file, so we'll change the working directory temporarily
self.old_working_dir = os.getcwd()
os.chdir(os.path.dirname(os.path.abspath(__file__)))
assert self.module is not None
def tearDown(self):
super().tearDown()
torch._dynamo.reset()
# return the working directory (see setUp)
os.chdir(self.old_working_dir)
@unittest.skipIf(IS_FBCODE, "cpp_extension doesn't work in fbcode right now")
class ExtensionBackendTests(BaseExtensionBackendTests):
def test_open_device_registration(self):
torch.utils.rename_privateuse1_backend("extension_device")
torch._register_device_module("extension_device", self.module)
register_backend_for_device(
"extension_device",
ExtensionScheduling,
ExtensionWrapperCodegen,
ExtensionCppWrapperCodegen,
)
self.assertTrue(
get_scheduling_for_device("extension_device") == ExtensionScheduling
)
self.assertTrue(
get_wrapper_codegen_for_device("extension_device")
== ExtensionWrapperCodegen
)
self.assertTrue(
get_wrapper_codegen_for_device("extension_device", True)
== ExtensionCppWrapperCodegen
)
self.assertFalse(self.module.custom_op_called())
device = self.module.custom_device()
x = torch.empty(2, 16).to(device=device).fill_(1)
self.assertTrue(self.module.custom_op_called())
y = torch.empty(2, 16).to(device=device).fill_(2)
z = torch.empty(2, 16).to(device=device).fill_(3)
ref = torch.empty(2, 16).fill_(5)
self.assertTrue(x.device == device)
self.assertTrue(y.device == device)
self.assertTrue(z.device == device)
def fn(a, b, c):
return a * b + c
cpp_utils.DEVICE_TO_ATEN["extension_device"] = "at::kPrivateUse1"
for cpp_wrapper_flag in [True, False]:
with config.patch({"cpp_wrapper": cpp_wrapper_flag}):
metrics.reset()
opt_fn = torch.compile()(fn)
_, code = run_and_get_cpp_code(opt_fn, x, y, z)
if (
cpu_vec_isa.valid_vec_isa_list()
and os.getenv("ATEN_CPU_CAPABILITY") != "default"
):
load_expr = "loadu"
else:
load_expr = " = in_ptr0[static_cast<long>(i0)];"
FileCheck().check("void").check(load_expr).check(
"extension_device"
).run(code)
opt_fn(x, y, z)
res = opt_fn(x, y, z)
self.assertEqual(ref, res.to(device="cpu"))
if __name__ == "__main__":
from torch._inductor.test_case import run_tests
from torch.testing._internal.inductor_utils import HAS_CPU
# cpp_extension doesn't work in fbcode right now
if HAS_CPU and not IS_MACOS and not IS_FBCODE:
run_tests(needs="filelock")
|
