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0b0aa874e8
Signed-off-by: yewentao256 <zhyanwentao@126.com> Signed-off-by: Wentao Ye <44945378+yewentao256@users.noreply.github.com> Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
99 lines
3.3 KiB
Python
99 lines
3.3 KiB
Python
# SPDX-License-Identifier: Apache-2.0
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# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
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import os
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import random
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import pytest
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import torch
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from vllm.attention.utils.fa_utils import flash_attn_supports_mla
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from vllm.platforms import current_platform
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from vllm.utils.flashinfer import has_flashinfer
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skip_unsupported = pytest.mark.skipif(
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not (current_platform.is_cuda() and current_platform.has_device_capability(90)),
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reason="Requires CUDA and >= Hopper (SM90)",
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)
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BACKENDS: list[str] = [
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"FLASH_ATTN",
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]
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if has_flashinfer():
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BACKENDS.append("FLASHINFER")
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if flash_attn_supports_mla():
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BACKENDS.append("FLASH_ATTN_MLA")
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DEFAULT_MODEL = "Qwen/Qwen3-1.7B"
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MLA_MODEL = "deepseek-ai/DeepSeek-V2-Lite-Chat"
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def resolve_model_name(backend: str) -> str:
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"""Resolve the model name for the given backend."""
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model = os.getenv("VLLM_TEST_MODEL", DEFAULT_MODEL)
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if backend.endswith("MLA") and model == DEFAULT_MODEL:
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return MLA_MODEL
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return model
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def _random_prompt(min_words: int = 1024, max_words: int = 1024 * 2) -> str:
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# Generate more realistic prompts that will actually produce varied tokens
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# Use a mix of common English text patterns
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prompt_templates = [
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# Question-answer style
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"Question: What is the capital of France?\nAnswer: The capital of France is",
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"Q: How does photosynthesis work?\nA: Photosynthesis is the process by which",
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"User: Can you explain quantum mechanics?\nAssistant: Quantum mechanics is",
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# Story/narrative style
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"Once upon a time in a distant galaxy, there lived",
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"The old man walked slowly down the street, remembering",
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"In the year 2157, humanity finally discovered",
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# Technical/code style
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"To implement a binary search tree in Python, first we need to",
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"The algorithm works by iterating through the array and",
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"Here's how to optimize database queries using indexing:",
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# Factual/informative style
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"The Renaissance was a period in European history that",
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"Climate change is caused by several factors including",
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"The human brain contains approximately 86 billion neurons which",
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# Conversational style
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"I've been thinking about getting a new laptop because",
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"Yesterday I went to the store and bought",
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"My favorite thing about summer is definitely",
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]
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# Pick a random template
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base_prompt = random.choice(prompt_templates)
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if max_words < min_words:
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max_words = min_words
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target_words = random.randint(min_words, max_words)
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if target_words > 50:
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# For longer prompts, repeat context
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padding_text = (
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" This is an interesting topic that deserves more explanation. "
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* (target_words // 50)
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)
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base_prompt = base_prompt + padding_text
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return base_prompt
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def _extract_step_logprobs(request_output):
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if getattr(request_output, "outputs", None):
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inner = request_output.outputs[0]
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if hasattr(inner, "logprobs") and inner.logprobs is not None:
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t = torch.tensor(
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[
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inner.logprobs[i][tid].logprob
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for i, tid in enumerate(inner.token_ids)
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],
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dtype=torch.float32,
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)
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return t, inner.token_ids
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return None, None
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