ColossalAI/op_builder/scaled_masked_softmax.py

38 lines
1.2 KiB
Python

import os
from .builder import Builder
from .utils import append_nvcc_threads
class ScaledMaskedSoftmaxBuilder(Builder):
NAME = "scaled_masked_softmax"
PREBUILT_IMPORT_PATH = "colossalai._C.scaled_masked_softmax"
def __init__(self):
super().__init__(name=ScaledMaskedSoftmaxBuilder.NAME, prebuilt_import_path=ScaledMaskedSoftmaxBuilder.PREBUILT_IMPORT_PATH)
# necessary 4 functions
def sources_files(self):
ret = [
self.csrc_abs_path(fname) for fname in
['scaled_masked_softmax.cpp', 'scaled_masked_softmax_cuda.cu']
]
return ret
def include_dirs(self):
return [
self.csrc_abs_path("kernels/include"),
self.get_cuda_home_include()
]
def cxx_flags(self):
return ['-O3'] + self.version_dependent_macros
def nvcc_flags(self):
extra_cuda_flags = [
'-std=c++14', '-U__CUDA_NO_HALF_OPERATORS__', '-U__CUDA_NO_HALF_CONVERSIONS__',
'-U__CUDA_NO_HALF2_OPERATORS__', '-DTHRUST_IGNORE_CUB_VERSION_CHECK'
]
ret = ['-O3', '--use_fast_math'] + self.version_dependent_macros + extra_cuda_flags
return append_nvcc_threads(ret)