Files
xc-llm-ascend/tests/ut/quantization/test_w4a8_dynamic.py
weichen 37a0715eda [Refactor] Adjustments to moe_comm_method selection process (#3001)
### What this PR does / why we need it?
Fix issues mentioned in
https://github.com/vllm-project/vllm-ascend/pull/2791 and some minor
refactoring.
1. Use Enum instead of string.
2. Avoid setting a new property to forward_context in
AscendFusedMoE.forward().
3. Enabling TokenDispatcherWithMoge.
4. Remove redundant code.

### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?

Qwen3-30B-A3B/Qwen3-30B-A3B-W8A8/DeepSeek-V3-W4A8-Pruing/deepseek-mtp/pangu-pro-moe-pruing:
1. Enable/Disable EP
2. Aclgraph & eager


- vLLM version: v0.10.2
- vLLM main:
9607d5eb44

Signed-off-by: Pr0Wh1teGivee <calvin_zhu0210@outlook.com>
Co-authored-by: weijinqian0 <12153182+weijinqian0@users.noreply.github.com>
2025-09-22 19:12:58 +08:00

187 lines
9.4 KiB
Python

import copy
from unittest.mock import Mock, patch
import torch
from tests.ut.base import TestBase
from vllm_ascend.quantization.w4a8_dynamic import (
AscendW4A8DynamicFusedMoEMethod, AscendW4A8DynamicLinearMethod)
class TestAscendW4A8DynamicLinearMethod(TestBase):
def setUp(self):
with patch(
'vllm_ascend.quantization.w4a8_dynamic.get_current_vllm_config'
) as mock_get_current_vllm_config:
mock_vllm_config = Mock()
mock_vllm_config.quant_config = Mock(
quant_description={"group_size": 256})
mock_vllm_config.scheduler_config = Mock(
max_num_batched_tokens=2048,
max_model_len=2048,
enable_chunked_prefill=False)
mock_get_current_vllm_config.return_value = mock_vllm_config
self.method = AscendW4A8DynamicLinearMethod()
self.method.group_size = 8
def test_get_weight(self):
weight = self.method.get_weight(8, 32, torch.bfloat16)
self.assertEqual(weight["weight"].dtype, torch.int8)
self.assertEqual(weight["weight"].shape, (32, 8))
def test_get_pergroup_param(self):
params = self.method.get_pergroup_param(8, 32, torch.bfloat16)
self.assertEqual(params["weight_scale"].dtype, torch.bfloat16)
self.assertEqual(params["weight_scale"].shape, (32, 1))
self.assertEqual(params["weight_offset"].dtype, torch.bfloat16)
self.assertEqual(params["weight_offset"].shape, (32, 1))
self.assertEqual(params["weight_scale_second"].dtype, torch.bfloat16)
self.assertEqual(params["weight_scale_second"].shape, (32, 1))
self.assertEqual(params["weight_offset_second"].dtype, torch.bfloat16)
self.assertEqual(params["weight_offset_second"].shape, (32, 1))
class TestAscendW4A8DynamicFusedMoEMethod(TestBase):
experts = 8
input_size = 16
output_size = 56
group_size = 2
@patch('vllm_ascend.quantization.w4a8_dynamic.get_ascend_config')
@patch('vllm_ascend.quantization.w4a8_dynamic.get_current_vllm_config')
@patch('vllm_ascend.quantization.w4a8_dynamic.get_ep_group')
@patch('vllm_ascend.quantization.w4a8_dynamic.get_mc2_group')
@patch('torch.distributed.get_rank', return_value=0)
def setUp(self, mock_get_rank, mock_get_mc2_group, mock_get_ep_group,
get_current_vllm_config, mock_get_ascend_config):
# Mock ascend config
mock_ascend_config = Mock()
mock_ascend_config.dynamic_eplb = False
mock_get_ascend_config.return_value = mock_ascend_config
mock_vllm_config = Mock()
mock_vllm_config.quant_config = Mock(quant_description={
"group_size": self.group_size,
"version": "0.0.0"
})
mock_vllm_config.parallel_config = Mock(enable_expert_parallel=True)
mock_vllm_config.scheduler_config = Mock(max_num_batched_tokens=2048,
max_model_len=2048,
enable_chunked_prefill=False)
get_current_vllm_config.return_value = mock_vllm_config
self.quant_method = AscendW4A8DynamicFusedMoEMethod()
def test_get_weight(self):
# old quant version w4a8 weight
param_dict = self.quant_method.get_weight(self.experts,
self.input_size,
self.output_size,
torch.bfloat16)
self.assertEqual(param_dict["w13_weight"].dtype, torch.int8)
self.assertEqual(param_dict["w13_weight"].shape,
(self.experts, 2 * self.input_size, self.output_size))
# new quant version weight
self.quant_method.new_quant_version = True
param_dict = self.quant_method.get_weight(self.experts,
self.input_size,
self.output_size,
torch.bfloat16)
self.assertEqual(param_dict["w13_weight"].dtype, torch.int8)
self.assertEqual(param_dict["w13_weight"].shape,
(self.experts, self.input_size, self.output_size))
def test_get_dynamic_quant_param(self):
# old quant version weight
param_dict = self.quant_method.get_dynamic_quant_param(
self.experts, self.input_size, self.output_size, torch.bfloat16)
self.assertEqual(param_dict["w13_weight_scale"].dtype, torch.bfloat16)
self.assertEqual(param_dict["w13_weight_scale"].shape,
(self.experts, 2 * self.input_size, 1))
self.assertEqual(param_dict["w13_weight_scale_second"].dtype,
torch.bfloat16)
self.assertEqual(param_dict["w13_weight_scale_second"].shape,
(self.experts, 2 * self.input_size,
self.output_size // self.group_size))
self.assertEqual(param_dict["w2_weight_scale"].dtype, torch.bfloat16)
self.assertEqual(param_dict["w2_weight_scale"].shape,
(self.experts, self.output_size, 1))
self.assertEqual(param_dict["w2_weight_scale_second"].dtype,
torch.bfloat16)
self.assertEqual(param_dict["w2_weight_scale_second"].shape,
(self.experts, self.output_size,
self.input_size // self.group_size))
# new quant version weight
self.quant_method.new_quant_version = True
param_dict = self.quant_method.get_dynamic_quant_param(
self.experts, self.input_size, self.output_size, torch.bfloat16)
self.assertEqual(param_dict["w2_scale_bias"].dtype, torch.float32)
self.assertEqual(
param_dict["w2_scale_bias"].shape,
(self.experts, self.output_size, 16 // self.quant_method.tp_size))
@patch('torch_npu.npu_quantize')
@patch('torch.Tensor.npu')
def test_process_weights_after_loading(self, mock_npu, mock_npu_quantize):
# old quant version weight
layer = torch.nn.Module()
layer.w13_weight = torch.nn.Parameter(torch.zeros(
(self.experts, 2 * self.input_size, self.output_size),
dtype=torch.int8),
requires_grad=False)
layer.w2_weight = torch.nn.Parameter(torch.zeros(
(self.experts, self.output_size, self.input_size),
dtype=torch.int8),
requires_grad=False)
layer.w13_weight_scale = torch.nn.Parameter(torch.ones(
(self.experts, 2 * self.input_size, 1), dtype=torch.bfloat16),
requires_grad=False)
layer.w13_weight_scale_second = torch.nn.Parameter(torch.ones(
(self.experts, 2 * self.input_size,
self.output_size // self.group_size),
dtype=torch.bfloat16),
requires_grad=False)
layer.w2_weight_scale = torch.nn.Parameter(torch.ones(
(self.experts, self.output_size, 1), dtype=torch.bfloat16),
requires_grad=False)
layer.w2_weight_scale_second = torch.nn.Parameter(torch.ones(
(self.experts, self.output_size,
self.input_size // self.group_size),
dtype=torch.bfloat16),
requires_grad=False)
new_layer = copy.deepcopy(layer)
mock_npu.return_value = torch.Tensor()
mock_npu_quantize.return_value = torch.Tensor()
self.quant_method.process_weights_after_loading(layer)
self.assertTrue(hasattr(layer, "w13_scale_bias"))
self.assertEqual(layer.w13_scale_bias.data.shape,
(self.experts, 2 * self.input_size))
self.assertEqual(layer.w13_scale_bias.data.dtype, torch.float32)
self.assertTrue(hasattr(layer, "w2_scale_bias"))
self.assertEqual(layer.w2_scale_bias.data.shape,
(self.experts, self.output_size))
self.assertEqual(layer.w2_scale_bias.data.dtype, torch.float32)
# new quant version weight
self.quant_method.new_quant_version = True
new_layer.w13_weight.data = torch.zeros(
(self.experts, self.input_size, self.output_size),
dtype=torch.int8)
new_layer.w2_weight.data = torch.zeros(
(self.experts, self.output_size // 2, self.input_size),
dtype=torch.int8)
w13_scale_bias = torch.zeros((self.experts, 2 * self.input_size, 1),
dtype=torch.float32)
new_layer.w13_scale_bias = torch.nn.Parameter(w13_scale_bias,
requires_grad=False)
w2_scale_bias = torch.zeros(
(self.experts, self.output_size, 16 // self.quant_method.tp_size),
dtype=torch.float32)
new_layer.w2_scale_bias = torch.nn.Parameter(w2_scale_bias,
requires_grad=False)
self.quant_method.process_weights_after_loading(new_layer)
self.assertEqual(new_layer.w13_scale_bias.data.shape,
(self.experts, 2 * self.input_size))
self.assertEqual(new_layer.w2_scale_bias.data.shape,
(self.experts, self.output_size))