5018f2d8fd
### What this PR does / why we need it?
related to https://github.com/vllm-project/vllm-ascend/issues/4267
### Does this PR introduce _any_ user-facing change?
support w8a16 quantization now
### How was this patch tested?
- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c
### Test
tested using [aisbench](https://gitee.com/aisbench/benchmark/) with tp2
#### Precision
| ceval | mmlu | gsm8k
-- | -- | -- | --
bf16 | 90.46 | 89.17 | 96.21
w8a16 | 89.51 | 89.29 | 95.98
#### Performance
| input_len | output_len | concurrency | TTFT (ms) | TPOT (ms) | TPS
(Total) (tokens/s)
-- | -- | -- | -- | -- | -- | --
bf16 | 2048 | 2048 | 10 | 1911.7136 | 77.988 | 253.9866
w8a16 | 2048 | 2048 | 10 | 2128.6334 | 67.1633 | 293.9117
bf16 | 3500 | 1024 | 10 | 3076.2509 | 84.3525 | 506.949
w8a16 | 3500 | 1024 | 10 | 2685.2031 | 73.015 | 585.4717
---------
Signed-off-by: yyt <yangyit139@gmail.com>
Signed-off-by: TmacAaron <yangyit139@gmail.com>
Co-authored-by: realliujiaxu <realliujiaxu@163.com>
79 lines
2.9 KiB
Python
79 lines
2.9 KiB
Python
#
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# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
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# Copyright 2023 The vLLM team.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This file is a part of the vllm-ascend project.
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#
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from modelscope import snapshot_download # type: ignore[import-untyped]
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from tests.e2e.conftest import VllmRunner
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from tests.e2e.model_utils import check_outputs_equal
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def test_qwen3_w8a8_quant():
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max_tokens = 5
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example_prompts = [
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"vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs."
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]
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vllm_target_outputs = [([
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85, 4086, 44, 374, 264, 1550, 42747, 628, 323, 4938, 72816, 44378, 323,
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13480, 4712, 369, 444, 10994, 82, 13, 1084, 374, 6188, 311, 387
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], 'vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. It is designed to be'
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)]
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with VllmRunner(
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snapshot_download("vllm-ascend/Qwen3-0.6B-W8A8"),
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max_model_len=8192,
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gpu_memory_utilization=0.7,
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quantization="ascend",
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) as vllm_model:
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vllm_quant_w8a8_outputs = vllm_model.generate_greedy(
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example_prompts, max_tokens)
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check_outputs_equal(
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outputs_0_lst=vllm_target_outputs,
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outputs_1_lst=vllm_quant_w8a8_outputs,
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name_0="vllm_target_outputs",
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name_1="vllm_w8a16_outputs",
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)
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def test_qwen3_dense_w8a16():
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max_tokens = 5
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example_prompts = [
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"vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs."
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]
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vllm_target_outputs = [([
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85, 4086, 44, 374, 264, 1550, 42747, 628, 323, 4938, 72816, 44378, 323,
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13480, 4712, 369, 444, 10994, 82, 13, 1084, 374, 6188, 311, 387
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], 'vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. It is designed to be'
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)]
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with VllmRunner(
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snapshot_download("vllm-ascend/Qwen3-0.6B-W8A16"),
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max_model_len=8192,
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enforce_eager=False,
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gpu_memory_utilization=0.7,
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quantization="ascend",
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) as vllm_model:
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vllm_quant_w8a16_outputs = vllm_model.generate_greedy(
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example_prompts, max_tokens)
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check_outputs_equal(
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outputs_0_lst=vllm_target_outputs,
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outputs_1_lst=vllm_quant_w8a16_outputs,
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name_0="vllm_target_outputs",
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name_1="vllm_w8a16_outputs",
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)
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