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ColossalAI/extensions/softmax/scaled_upper_triangle_maske...

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from ..cuda_extension import _CudaExtension
from ..utils import append_nvcc_threads, get_cuda_cc_flag
class ScaledUpperTriangleMaskedSoftmaxCudaExtension(_CudaExtension):
def __init__(self):
super().__init__(name="scaled_upper_triangle_masked_softmax_cuda")
def include_dirs(self):
return [self.get_cuda_home_include()]
def sources_files(self):
ret = [
self.csrc_abs_path(fname)
for fname in [
"cuda/pybind/scaled_upper_triang_masked_softmax.cpp",
"cuda/scaled_upper_triang_masked_softmax_kernel.cu",
]
]
return ret
def cxx_flags(self):
return ["-O3"] + self.version_dependent_macros
def nvcc_flags(self):
extra_cuda_flags = [
"-U__CUDA_NO_HALF_OPERATORS__",
"-U__CUDA_NO_HALF_CONVERSIONS__",
"--expt-relaxed-constexpr",
"--expt-extended-lambda",
]
extra_cuda_flags.extend(get_cuda_cc_flag())
ret = ["-O3", "--use_fast_math"] + extra_cuda_flags
return append_nvcc_threads(ret)