chore: vendor sglang v0.5.10 snapshot

This commit is contained in:
2026-04-24 12:29:36 +00:00
parent 78f0d15221
commit bded08301f
4308 changed files with 1200894 additions and 2 deletions

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# Copyright 2023-2024 SGLang Team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
import multiprocessing as mp
import os
import unittest
from typing import List
from sglang.test.lora_utils import (
ALL_OTHER_LORA_MODELS,
CI_LORA_MODELS,
DEFAULT_PROMPTS,
TORCH_DTYPES,
LoRAModelCase,
run_lora_test_by_batch,
run_lora_test_one_by_one,
)
from sglang.test.test_utils import CustomTestCase, is_in_ci
TEST_CUDA_GRAPH_PADDING_PROMPTS = [
"AI is a field of computer science focused on",
"""
### Instruction:
Tell me about llamas and alpacas
### Response:
Llamas are large, long-necked animals with a woolly coat. They have two toes on each foot instead of three like other camelids (camels, dromedaries). Llamas live in the Andean mountains of South America where they graze on grasses and shrubs. Alpaca is another name for domesticated llama. The word "alpaca" comes from an Incan language meaning "golden fleece." Alpacas look very similar to llamas but are smaller than their wild relatives. Both species were used by ancient people as pack animals and for meat. Today both llamas and alpacas are raised primarily for their fiber which can be spun into yarn or knitted into clothing.
### Question 2:
What do you know about llamas?
### Answer:
""",
"Computer science is the study of",
]
class TestLoRACudaGraph(CustomTestCase):
def _run_without_cuda_graph_on_model_cases(self, model_cases: List[LoRAModelCase]):
# Since we have already enabled CUDA graph by default in other lora tests,
# we only need to run lora tests without CUDA graph here.
for model_case in model_cases:
# If skip_long_prompt is True, filter out prompts longer than 1000 characters
prompts = (
DEFAULT_PROMPTS
if not model_case.skip_long_prompt
else [p for p in DEFAULT_PROMPTS if len(p) < 1000]
)
for torch_dtype in TORCH_DTYPES:
run_lora_test_one_by_one(
prompts,
model_case,
torch_dtype,
max_new_tokens=32,
disable_cuda_graph=True,
test_tag="without_cuda_graph",
)
def _run_cuda_graph_padding_on_model_cases(self, model_cases: List[LoRAModelCase]):
for model_case in model_cases:
# Run a batch size of 3, which will not be captured by CUDA graph and need padding
prompts = TEST_CUDA_GRAPH_PADDING_PROMPTS
for torch_dtype in TORCH_DTYPES:
run_lora_test_by_batch(
prompts,
model_case,
torch_dtype,
max_new_tokens=32,
disable_cuda_graph=False,
test_tag="cuda_graph_padding",
)
def test_ci_lora_models(self):
self._run_without_cuda_graph_on_model_cases(CI_LORA_MODELS)
self._run_cuda_graph_padding_on_model_cases(CI_LORA_MODELS)
def test_all_lora_models(self):
if is_in_ci():
return
# Retain ONLY_RUN check here
filtered_models = []
for model_case in ALL_OTHER_LORA_MODELS:
if "ONLY_RUN" in os.environ and os.environ["ONLY_RUN"] != model_case.base:
continue
filtered_models.append(model_case)
self._run_without_cuda_graph_on_model_cases(filtered_models)
self._run_cuda_graph_padding_on_model_cases(filtered_models)
if __name__ == "__main__":
try:
mp.set_start_method("spawn")
except RuntimeError:
pass
unittest.main(warnings="ignore")

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import unittest
from types import SimpleNamespace
from sglang.srt.utils import kill_process_tree
from sglang.test.test_utils import (
DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
DEFAULT_URL_FOR_TEST,
CustomTestCase,
is_in_ci,
popen_launch_server,
)
MODELS = [
SimpleNamespace(
model="meta-llama/Llama-4-Maverick-17B-128E-Instruct-FP8",
tp_size=8,
),
]
@unittest.skipIf(is_in_ci(), "To reduce the CI execution time.")
class TestLlama4LoRA(CustomTestCase):
@classmethod
def setUpClass(cls):
cls.base_url = DEFAULT_URL_FOR_TEST
def test_bringup(self):
for model in MODELS:
try:
process = popen_launch_server(
model.model,
self.base_url,
timeout=3 * DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
other_args=[
"--enable-lora",
"--max-lora-rank",
"64",
"--lora-target-modules",
"all",
"--tp-size",
str(model.tp_size),
"--context-length",
"262144",
"--attention-backend",
"fa3",
],
)
except Exception as e:
print(f"Error testing {model.model}: {e}")
self.fail(f"Test failed for {model.model}: {e}")
finally:
# Ensure process cleanup happens regardless of success/failure
if process is not None and process.poll() is None:
print(f"Cleaning up process {process.pid}")
try:
kill_process_tree(process.pid)
except Exception as e:
print(f"Error killing process: {e}")
if __name__ == "__main__":
unittest.main()

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import random
import unittest
import torch
from sglang.srt.lora.torch_ops.lora_ops import sgemm_lora_a_fwd, sgemm_lora_b_fwd
from sglang.test.lora_utils import reference_sgmv_expand, reference_sgmv_shrink
from sglang.test.test_utils import CustomTestCase
class TestLoraOps(CustomTestCase):
def test_sgemm_lora_a_fwd(self):
batch_size = 2
input_dim = 1024
num_loras = 3
dtype = torch.float32
possible_lora_ranks = [8, 16, 32, 64, 128, 256]
lora_ranks = random.sample(
possible_lora_ranks,
counts=[num_loras] * len(possible_lora_ranks),
k=num_loras,
)
max_lora_rank = max(lora_ranks)
possible_lora_scaling = [0.25, 0.5, 1.0, 2.0, 4.0]
lora_scaling = random.sample(
possible_lora_scaling,
counts=[num_loras] * len(possible_lora_scaling),
k=num_loras,
)
inputs = torch.randn(batch_size, input_dim, dtype=dtype)
lora_a_weights = torch.randn(num_loras, max_lora_rank, input_dim, dtype=dtype)
lora_indices_tensor = torch.randint(
num_loras, (batch_size,), dtype=torch.int32, device="cpu"
)
seq_len_tensor = torch.ones(batch_size, dtype=torch.int32, device="cpu")
lora_ranks_tensor = torch.tensor(lora_ranks, dtype=torch.int32, device="cpu")
lora_scaling_tensor = torch.tensor(
lora_scaling, dtype=torch.float16, device="cpu"
)
expect_output = reference_sgmv_shrink(
inputs,
lora_a_weights,
lora_indices_tensor,
seq_len_tensor,
lora_ranks_tensor,
lora_scaling_tensor,
)
actual_output = sgemm_lora_a_fwd(
inputs,
lora_a_weights,
lora_indices_tensor,
seq_len_tensor,
lora_ranks_tensor,
lora_scaling_tensor,
)
self.assertTrue(torch.allclose(actual_output, expect_output))
def test_sgemm_lora_b_fwd(self):
batch_size = 2
output_dim = 1024
num_loras = 3
dtype = torch.float32
possible_lora_ranks = [8, 16, 32, 64, 128, 256]
lora_ranks = random.sample(
possible_lora_ranks,
counts=[num_loras] * len(possible_lora_ranks),
k=num_loras,
)
max_lora_rank = max(lora_ranks)
inputs = torch.randn(batch_size, max_lora_rank, dtype=dtype)
lora_b_weights = torch.randn(num_loras, output_dim, max_lora_rank, dtype=dtype)
lora_ranks_tensor = torch.tensor(lora_ranks, dtype=torch.int32, device="cpu")
seq_len_tensor = torch.ones(batch_size, dtype=torch.int32, device="cpu")
lora_indices_tensor = torch.randint(
num_loras, (batch_size,), dtype=torch.int32, device="cpu"
)
slice_offsets = torch.tensor([0, output_dim], dtype=torch.int32, device="cpu")
expect_output = reference_sgmv_expand(
inputs,
lora_b_weights,
lora_indices_tensor,
seq_len_tensor,
lora_ranks_tensor,
slice_offsets,
)
actual_output = sgemm_lora_b_fwd(
inputs,
lora_b_weights,
lora_indices_tensor,
seq_len_tensor,
lora_ranks_tensor,
slice_offsets,
)
self.assertTrue(torch.allclose(actual_output, expect_output))
def test_sgemm_lora_a_fwd_expand(self):
batch_size = 2
input_dim = 1024
num_loras = 3
dtype = torch.float32
possible_lora_ranks = [8, 16, 32, 64, 128, 256]
lora_ranks = random.sample(
possible_lora_ranks,
counts=[num_loras] * len(possible_lora_ranks),
k=num_loras,
)
max_lora_rank = max(lora_ranks)
possible_lora_scaling = [0.25, 0.5, 1.0, 2.0, 4.0]
lora_scaling = random.sample(
possible_lora_scaling,
counts=[num_loras] * len(possible_lora_scaling),
k=num_loras,
)
seq_len_tensor = torch.randint(
num_loras, (batch_size,), dtype=torch.int32, device="cpu"
)
seq_len = sum(seq_len_tensor)
inputs = torch.randn(seq_len, input_dim, dtype=dtype)
lora_a_weights = torch.randn(num_loras, max_lora_rank, input_dim, dtype=dtype)
lora_indices_tensor = torch.randint(
num_loras, (batch_size,), dtype=torch.int32, device="cpu"
)
lora_ranks_tensor = torch.tensor(lora_ranks, dtype=torch.int32, device="cpu")
lora_scaling_tensor = torch.tensor(
lora_scaling, dtype=torch.float16, device="cpu"
)
expect_output = reference_sgmv_shrink(
inputs,
lora_a_weights,
lora_indices_tensor,
seq_len_tensor,
lora_ranks_tensor,
lora_scaling_tensor,
)
actual_output = sgemm_lora_a_fwd(
inputs,
lora_a_weights,
lora_indices_tensor,
seq_len_tensor,
lora_ranks_tensor,
lora_scaling_tensor,
)
self.assertTrue(torch.allclose(actual_output, expect_output))
def test_sgemm_lora_b_fwd_expand(self):
batch_size = 2
output_dim = 1024
num_loras = 3
dtype = torch.float32
possible_lora_ranks = [8, 16, 32, 64, 128, 256]
lora_ranks = random.sample(
possible_lora_ranks,
counts=[num_loras] * len(possible_lora_ranks),
k=num_loras,
)
max_lora_rank = max(lora_ranks)
seq_len_tensor = torch.randint(
num_loras, (batch_size,), dtype=torch.int32, device="cpu"
)
seq_len = sum(seq_len_tensor)
inputs = torch.randn(seq_len, max_lora_rank, dtype=dtype)
lora_b_weights = torch.randn(num_loras, output_dim, max_lora_rank, dtype=dtype)
lora_ranks_tensor = torch.tensor(lora_ranks, dtype=torch.int32, device="cpu")
lora_indices_tensor = torch.randint(
num_loras, (batch_size,), dtype=torch.int32, device="cpu"
)
slice_offsets = torch.tensor([0, output_dim], dtype=torch.int32, device="cpu")
expect_output = reference_sgmv_expand(
inputs,
lora_b_weights,
lora_indices_tensor,
seq_len_tensor,
lora_ranks_tensor,
slice_offsets,
)
actual_output = sgemm_lora_b_fwd(
inputs,
lora_b_weights,
lora_indices_tensor,
seq_len_tensor,
lora_ranks_tensor,
slice_offsets,
)
self.assertTrue(torch.allclose(actual_output, expect_output))
if __name__ == "__main__":
unittest.main()

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# Copyright 2023-2025 SGLang Team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
import multiprocessing as mp
import unittest
from sglang.test.lora_utils import (
CI_MULTI_LORA_MODELS,
LORA_MODELS_QWEN3,
run_lora_multiple_batch_on_model_cases,
)
from sglang.test.test_utils import CustomTestCase
class TestLoRASpecDecoding(CustomTestCase):
def test_qwen(self):
run_lora_multiple_batch_on_model_cases(
LORA_MODELS_QWEN3,
attention_backend="triton",
use_spec_decoding=True,
disable_cuda_graph=True,
enable_deterministic_inference=True,
)
def test_llama(self):
run_lora_multiple_batch_on_model_cases(
CI_MULTI_LORA_MODELS,
attention_backend="triton",
use_spec_decoding=True,
disable_cuda_graph=True,
enable_deterministic_inference=True,
)
if __name__ == "__main__":
try:
mp.set_start_method("spawn")
except RuntimeError:
pass
unittest.main(warnings="ignore")

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import unittest
import torch
from sglang.srt.lora.backend.torch_backend import TorchNativeLoRABackend
from sglang.srt.model_executor.forward_batch_info import ForwardBatch, ForwardMode
from sglang.test.lora_utils import reference_sgmv_expand, reference_sgmv_shrink
from sglang.test.test_utils import CustomTestCase
class TestTorchNativeLoRABackend(CustomTestCase):
device = "cpu"
# set duplicate weights to test merging during prepare_lora_batch
weight_indices = [0, 0, 1]
lora_ranks = [1, 1]
scalings = [1.0, 0.5]
seq_lens = [1, 1, 1]
use_cuda_graph = False
forward_batch = ForwardBatch(
forward_mode=ForwardMode.EXTEND,
batch_size=3,
input_ids=torch.tensor([[1], [2], [3]], dtype=torch.int32),
req_pool_indices=None,
seq_lens=None,
out_cache_loc=None,
seq_lens_sum=3,
extend_seq_lens=torch.tensor(seq_lens, dtype=torch.int32),
extend_seq_lens_cpu=seq_lens,
)
@classmethod
def setUpClass(cls):
cls.backend = TorchNativeLoRABackend(max_loras_per_batch=2, device=cls.device)
cls.backend.prepare_lora_batch(
forward_batch=cls.forward_batch,
weight_indices=cls.weight_indices,
lora_ranks=cls.lora_ranks,
scalings=cls.scalings,
use_cuda_graph=cls.use_cuda_graph,
)
def test_run_lora_a_sgemm(self):
batch_size = 3
input_dim = 4
output_dim = 6
num_loras = 3
dtype = torch.float32
x = torch.randn(batch_size, input_dim, dtype=dtype)
weights = torch.randn(num_loras, output_dim, input_dim, dtype=dtype)
weight_indices_tensor = torch.tensor(
self.weight_indices, dtype=torch.int32, device=self.device
)
seg_len_tensor = torch.tensor(
self.seq_lens, dtype=torch.int32, device=self.device
)
lora_ranks_tensor = torch.tensor(
self.lora_ranks, dtype=torch.int32, device=self.device
)
scalings_tensor = torch.tensor(
self.scalings, dtype=torch.float, device=self.device
)
expect_output = reference_sgmv_shrink(
x,
weights,
weight_indices_tensor,
seg_len_tensor,
lora_ranks_tensor,
scalings_tensor,
)
actual_output = self.backend.run_lora_a_sgemm(x, weights)
self.assertTrue(torch.allclose(actual_output, expect_output))
def test_run_lora_b_sgemm(self):
batch_size = 3
input_dim = 6
output_dim = 4
num_loras = 3
dtype = torch.float32
x = torch.randn(batch_size, input_dim, dtype=dtype)
weights = torch.randn(num_loras, output_dim, input_dim, dtype=dtype)
_, weight_out_dim, _ = weights.shape
weight_indices_tensor = torch.tensor(
self.weight_indices, dtype=torch.int32, device=self.device
)
seg_len_tensor = torch.tensor(
self.seq_lens, dtype=torch.int32, device=self.device
)
lora_ranks_tensor = torch.tensor(
self.lora_ranks, dtype=torch.int32, device=self.device
)
expect_output = reference_sgmv_expand(
x,
weights,
weight_indices_tensor,
seg_len_tensor,
lora_ranks_tensor,
slice_offsets=torch.tensor(
[0, weight_out_dim], dtype=torch.int32, device="cpu"
),
)
actual_output = self.backend.run_lora_b_sgemm(x, weights)
self.assertTrue(torch.allclose(actual_output, expect_output))
def test_run_qkv_lora(self):
batch_size = 3
num_loras = 3
input_dim = 6
output_offset = [0, 3, 6, 9]
output_dim = output_offset[-1]
num_slices = len(output_offset) - 1 # 3 slices for Q, K, V
max_lora_rank = max(self.lora_ranks)
dtype = torch.float32
x = torch.randn(batch_size, input_dim, dtype=dtype)
output_offset_cpu = torch.tensor(output_offset, dtype=torch.int32)
qkv_lora_a = torch.randn(
num_loras, max_lora_rank * num_slices, input_dim, dtype=dtype
)
qkv_lora_b = torch.randn(
num_loras, output_dim, max_lora_rank * num_slices, dtype=dtype
)
weight_indices_tensor = torch.tensor(
self.weight_indices, dtype=torch.int32, device=self.device
)
seg_len_tensor = torch.tensor(
self.seq_lens, dtype=torch.int32, device=self.device
)
lora_ranks_tensor = torch.tensor(
self.lora_ranks, dtype=torch.int32, device=self.device
)
scalings_tensor = torch.tensor(
self.scalings, dtype=torch.float, device=self.device
)
expect_lora_a_output = reference_sgmv_shrink(
x,
qkv_lora_a,
weight_indices_tensor,
seg_len_tensor,
lora_ranks_tensor,
scalings_tensor,
num_slices,
)
expect_output = reference_sgmv_expand(
expect_lora_a_output,
qkv_lora_b,
weight_indices_tensor,
seg_len_tensor,
lora_ranks_tensor,
output_offset_cpu,
)
actual_output = self.backend.run_qkv_lora(
x, qkv_lora_a, qkv_lora_b, None, output_offset_cpu, 0
)
self.assertTrue(torch.allclose(actual_output, expect_output))
def test_run_gate_up_lora(self):
batch_size = 3
input_dim = 6
output_dim = 4
num_loras = 3
dtype = torch.float32
max_lora_rank = max(self.lora_ranks)
num_slices = 2
x = torch.randn(batch_size, input_dim, dtype=dtype)
gate_up_lora_a = torch.randn(
num_loras, max_lora_rank * num_slices, input_dim, dtype=dtype
)
gate_up_lora_b = torch.randn(
num_loras, output_dim, max_lora_rank * num_slices, dtype=dtype
)
_, weight_out_dim, _ = gate_up_lora_b.shape
slice_size = weight_out_dim // num_slices
output_offset = torch.tensor(
[0, slice_size, weight_out_dim], dtype=torch.int32, device="cpu"
)
weight_indices_tensor = torch.tensor(
self.weight_indices, dtype=torch.int32, device=self.device
)
seg_len_tensor = torch.tensor(
self.seq_lens, dtype=torch.int32, device=self.device
)
lora_ranks_tensor = torch.tensor(
self.lora_ranks, dtype=torch.int32, device=self.device
)
scalings_tensor = torch.tensor(
self.scalings, dtype=torch.float, device=self.device
)
expect_lora_a_output = reference_sgmv_shrink(
x,
gate_up_lora_a,
weight_indices_tensor,
seg_len_tensor,
lora_ranks_tensor,
scalings_tensor,
num_slices,
)
expect_output = reference_sgmv_expand(
expect_lora_a_output,
gate_up_lora_b,
weight_indices_tensor,
seg_len_tensor,
lora_ranks_tensor,
slice_offsets=output_offset,
)
actual_output = self.backend.run_gate_up_lora(x, gate_up_lora_a, gate_up_lora_b)
self.assertTrue(torch.allclose(actual_output, expect_output))
if __name__ == "__main__":
unittest.main()