| # Copyright 2024-2025 ModelCloud.ai | |
| # Copyright 2024-2025 qubitium@modelcloud.ai | |
| # Contact: qubitium@modelcloud.ai, x.com/qubitium | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| from enum import Enum | |
| class BACKEND(str, Enum): | |
| AUTO = "auto" # choose the optimal local kernel based on quant_config compatibility | |
| AUTO_TRAINABLE = "auto_trainable" # choose the optimal trainable local kernel for post-quant training | |
| # gptq | |
| TORCH_FUSED = "torch_fused" # optimized for Intel XPU | |
| TORCH = "torch" # GOOD: about 80% of triton | |
| TRITON = "triton" # VERY GOOD: all-around kernel | |
| EXLLAMA_V1 = "exllama_v1" # FAST: optimized for batching == 1 | |
| EXLLAMA_V2 = "exllama_v2" # FASTER: optimized for batching > 1 | |
| EXLLAMA_EORA = "exllama_eora" | |
| MARLIN = "marlin" # FASTEST: marlin reduce ops in fp32 (higher precision -> more accurate, slightly slower) | |
| MARLIN_FP16 = "marlin_fp16" # FASTEST and then some: marlin reduce ops in fp16 (lower precision -> less accurate, slightly faster) | |
| BITBLAS = "bitblas" # EXTREMELY FAST: speed at the cost of 10+ minutes of AOT (ahead of time compilation with disk cache) | |
| IPEX = "ipex" # Best kernel for Intel XPU and Intel/AMD CPU with AVX512, AMX, # XMX | |
| # qqq | |
| QQQ = "qqq" # marlin based qqq kernel | |
| # external | |
| VLLM = "vllm" # External inference engine: CUDA + ROCm + IPEX | |
| SGLANG = "sglang" # External inference engine: CUDA + ROCm | |
| MLX = "mlx" # External inference engine: Apple MLX on M1+ (Apple Silicon) | |