Fix external_models import path and migrate model loading tests (#16458)

python/sglang/srt/layers/moe/moe_runner/deep_gemm.py

@@ -45,7 +45,7 @@ _DEEPGEMM_ON_H20 = get_bool_env_var("SGLANG_DEEPGEMM_ON_H20")
 
 # TODO(kaixih@nvidia): ideally we should merge this logic into
 # `fill_gateup_input_triton_kernel` to directly generate e8m0 scale.
-@torch.compile
+@torch.compile(disable=_is_hip or _is_npu)
 def _cast_to_e8m0_with_rounding_up(x: torch.Tensor) -> torch.Tensor:
     temp = x.to(torch.float32).view(torch.int32)
     exp = torch.bitwise_right_shift(temp, 23)