vllm/tests/kernels/test_rocm_attention_selector.py
Sibi a73e183e36
[Misc] Replace os environ to monkeypatch in test suite (#14516)
Signed-off-by: sibi <85477603+t-sibiraj@users.noreply.github.com>
Signed-off-by: Aaron Pham <contact@aarnphm.xyz>
Co-authored-by: Cyrus Leung <cyrus.tl.leung@gmail.com>
Co-authored-by: Aaron Pham <contact@aarnphm.xyz>
2025-03-16 20:35:57 -07:00

35 lines
1.1 KiB
Python

# SPDX-License-Identifier: Apache-2.0
import pytest
import torch
from vllm.attention.selector import _cached_get_attn_backend, get_attn_backend
from vllm.platforms.rocm import RocmPlatform
from vllm.utils import STR_BACKEND_ENV_VAR
@pytest.fixture(autouse=True)
def clear_cache():
"""Clear lru cache to ensure each test case runs without caching.
"""
_cached_get_attn_backend.cache_clear()
def test_selector(monkeypatch: pytest.MonkeyPatch):
with monkeypatch.context() as m:
m.setenv(STR_BACKEND_ENV_VAR, "ROCM_FLASH")
# Set the current platform to ROCm using monkeypatch
monkeypatch.setattr("vllm.attention.selector.current_platform",
RocmPlatform())
# Test standard ROCm attention
backend = get_attn_backend(16, torch.float16, torch.float16, 16, False)
assert (backend.get_name() == "ROCM_FLASH"
or backend.get_name() == "ROCM_ATTN_VLLM_V1")
# mla test for deepseek related
backend = get_attn_backend(576, torch.bfloat16, "auto", 16, False,
False, True)
assert backend.get_name() == "TRITON_MLA"