Files
enginex-ascend-910-vllm/tests/ut/quantization/methods/test_w8a8fp8_dynamic.py
Sun Ruoxi 7f8a1b1f7a init v0.23.0
Signed-off-by: Sun Ruoxi <sunruoxi@4paradigm.com>
2026-08-27 15:11:51 +08:00

137 lines
6.2 KiB
Python

from unittest.mock import MagicMock, Mock, patch
import torch
from tests.ut.base import TestBase
from tests.ut.quantization.conftest_quantization import (
create_mock_ascend_config,
create_mock_vllm_config,
)
from vllm_ascend.ascend_forward_context import MoECommType
from vllm_ascend.quantization.methods.w8a8fp8_dynamic import (
AscendW8A8FP8DynamicFusedMoEMethod,
AscendW8A8FP8DynamicLinearMethod,
)
class TestAscendW8A8FP8DynamicLinearMethod(TestBase):
def setUp(self):
self.method = AscendW8A8FP8DynamicLinearMethod()
def test_act_quant_type(self):
self.assertEqual(self.method.act_quant_type, torch.float8_e4m3fn)
def test_get_weight_various_sizes(self):
sizes = [(64, 128), (256, 512), (1024, 2048)]
for input_size, output_size in sizes:
weight = self.method.get_weight(input_size, output_size, torch.bfloat16)
self.assertEqual(weight["weight"].dtype, torch.float8_e4m3fn)
self.assertEqual(weight["weight"].shape, (output_size, input_size))
def test_get_perchannel_param_dtype_variations(self):
dtypes = [torch.bfloat16, torch.float16]
for dtype in dtypes:
params = self.method.get_perchannel_param(128, dtype)
self.assertEqual(params["weight_scale"].dtype, torch.float32)
self.assertEqual(params["weight_offset"].dtype, dtype)
self.assertEqual(params["weight_scale"].shape, (128, 1))
self.assertEqual(params["weight_offset"].shape, (128, 1))
class TestAscendW8A8FP8FusedMoEMethod(TestBase):
num_experts = 8
hidden_size = 128
intermediate_size = 128
@patch("torch.distributed.get_rank")
@patch("vllm_ascend.quantization.methods.w8a8_dynamic.get_mc2_group")
@patch("vllm_ascend.quantization.methods.w8a8_dynamic.get_ascend_config")
def setUp(self, mock_ascend, mock_mc2, mock_rank):
with patch("vllm_ascend.quantization.methods.w8a8_dynamic.get_current_vllm_config") as mock_vllm:
mock_vllm.return_value = create_mock_vllm_config()
mock_ascend.return_value = create_mock_ascend_config()
mock_mc2.return_value = MagicMock(
device_group=Mock(
_get_backend=Mock(return_value=Mock(get_hccl_comm_name=Mock(return_value="test_comm")))
)
)
mock_rank.return_value = 0
self.quant_method = AscendW8A8FP8DynamicFusedMoEMethod()
def test_quant_type_is_w8a8fp8(self):
from vllm_ascend.quantization.quant_type import QuantType
self.assertEqual(self.quant_method.quant_type, QuantType.W8A8FP8)
def test_get_weight_dtype_is_float8_e4m3fn(self):
param_dict = self.quant_method.get_weight(
self.num_experts, self.intermediate_size, self.hidden_size, torch.bfloat16
)
self.assertEqual(param_dict["w13_weight"].dtype, torch.float8_e4m3fn)
self.assertEqual(param_dict["w2_weight"].dtype, torch.float8_e4m3fn)
self.assertEqual(
param_dict["w13_weight"].shape, (self.num_experts, 2 * self.intermediate_size, self.hidden_size)
)
self.assertEqual(param_dict["w2_weight"].shape, (self.num_experts, self.hidden_size, self.intermediate_size))
def test_get_weight_various_expert_counts(self):
expert_counts = [4, 8, 16, 32]
for num_experts in expert_counts:
param_dict = self.quant_method.get_weight(
num_experts, self.intermediate_size, self.hidden_size, torch.bfloat16
)
self.assertEqual(param_dict["w13_weight"].shape[0], num_experts)
self.assertEqual(param_dict["w2_weight"].shape[0], num_experts)
@patch("vllm_ascend.quantization.methods.w8a8_dynamic._EXTRA_CTX")
@patch("vllm_ascend.quantization.methods.w8a8_dynamic.select_experts")
def test_apply_uses_explicit_dispatch_and_mlp_args(self, mock_select_experts, mock_extra_ctx):
tokens = 4
hidden_size = self.hidden_size
layer = torch.nn.Module()
layer.w13_weight = torch.randn(
self.num_experts, 2 * self.intermediate_size, hidden_size, dtype=torch.bfloat16
).to(torch.float8_e4m3fn)
layer.w2_weight = torch.randn(self.num_experts, hidden_size, self.intermediate_size, dtype=torch.bfloat16).to(
torch.float8_e4m3fn
)
layer.w13_weight_scale_fp32 = torch.ones(self.num_experts, 2 * self.intermediate_size, dtype=torch.float32)
layer.w2_weight_scale = torch.ones(self.num_experts, hidden_size, dtype=torch.float32)
layer.swiglu_limit = 1000000
x = torch.randn(tokens, hidden_size, dtype=torch.float32)
router_logits = torch.randn(tokens, self.num_experts, dtype=torch.float32)
topk_weights = torch.randn(tokens, 2, dtype=torch.float32)
topk_ids = torch.randint(0, self.num_experts, (tokens, 2), dtype=torch.int64)
mc2_mask = torch.tensor([1, 0, 1, 0], dtype=torch.bool)
pertoken_scale = torch.randn(tokens, dtype=torch.float32)
mock_select_experts.return_value = (topk_weights, topk_ids)
mock_comm = Mock()
mock_comm.fused_experts.return_value = torch.randn(tokens, hidden_size, dtype=torch.float32)
mock_extra_ctx.moe_comm_method = mock_comm
mock_extra_ctx.moe_comm_type = MoECommType.ALLGATHER
self.quant_method.multistream_overlap_gate = False
self.quant_method.in_dtype = torch.float32
self.quant_method.apply(
layer=layer,
x=x,
router_logits=router_logits,
top_k=2,
renormalize=True,
num_experts=self.num_experts,
activation="gelu",
apply_router_weight_on_input=True,
mc2_mask=mc2_mask,
pertoken_scale=pertoken_scale,
)
fused_experts_input = mock_comm.fused_experts.call_args.kwargs["fused_experts_input"]
self.assertEqual(fused_experts_input.activation, "gelu")
self.assertTrue(fused_experts_input.routing.apply_router_weight_on_input)
self.assertIs(fused_experts_input.routing.mc2_mask, mc2_mask)
self.assertIs(fused_experts_input.routing.pertoken_scale, pertoken_scale)
self.assertIs(fused_experts_input.topk_weights, topk_weights)
self.assertIs(fused_experts_input.topk_ids, topk_ids)