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sglang/python/sglang/srt/layers/quantization/deep_gemm_wrapper/configurer.py
2025-08-31 23:29:56 -07:00

33 lines
778 B
Python

import logging
import torch
from sglang.srt.utils import get_bool_env_var, get_device_sm
logger = logging.getLogger(__name__)
def _compute_enable_deep_gemm():
sm_version = get_device_sm()
if sm_version < 90:
return False
try:
import deep_gemm
except ImportError:
logger.warning("Failed to import deep_gemm, disable ENABLE_JIT_DEEPGEMM.")
return False
return get_bool_env_var("SGL_ENABLE_JIT_DEEPGEMM", default="true")
def _is_blackwell_arch() -> bool:
major, minor = torch.cuda.get_device_capability(torch.cuda.current_device())
return major == 10
ENABLE_JIT_DEEPGEMM = _compute_enable_deep_gemm()
DEEPGEMM_BLACKWELL = ENABLE_JIT_DEEPGEMM and _is_blackwell_arch()
DEEPGEMM_SCALE_UE8M0 = DEEPGEMM_BLACKWELL