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[Bugfix][TPU] Fix tpu model runner testcase failure (#18810)

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Signed-off-by: Carol Zheng <cazheng@google.com>
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Carol Zheng 2025-05-30 10:04:03 +00:00 committed by GitHub
parent 4577fc9abb
commit fba02e3bd1
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2 changed files with 50 additions and 16 deletions
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31
tests/v1/tpu/worker/test_tpu_model_runner.py
View File

@ -81,7 +81,7 @@ def _schedule_new_request(*req_ids: str) -> SchedulerOutput:
mm_hashes=[],
mm_positions=[],
sampling_params=SamplingParams(),
block_ids=[0],
block_ids=[[0]], # block_ids should be list[list[int]]
num_computed_tokens=0,
lora_request=None,
))
@ -112,14 +112,35 @@ def _is_req_added(model_runner, req_id: str) -> bool:
def _is_req_state_block_table_match(model_runner, req_id: str) -> bool:
"""Check if the request state block IDs match the block table.
This function handles both legacy BlockTable and new MultiGroupBlockTable
structures for backward compatibility.
"""
req_index = model_runner.input_batch.req_id_to_index[req_id]
block_table = model_runner.input_batch.block_table
multi_group_block_table = model_runner.input_batch.block_table
req_state = model_runner.requests[req_id]
if block_table.num_blocks_per_row[req_index] != len(req_state.block_ids):
# Access the first block table from MultiGroupBlockTable
# This is safe since we currently only use single KV cache groups
block_table = multi_group_block_table[0]
# req_state.block_ids is now list[list[int]] for MultiGroupBlockTable
# Extract the first group's block IDs
if isinstance(req_state.block_ids[0], list):
# New format: list[list[int]] - extract first group
req_block_ids = req_state.block_ids[0]
else:
# Legacy format: list[int] - use directly
req_block_ids = req_state.block_ids
if block_table.num_blocks_per_row[req_index] != len(req_block_ids):
return False
num_blocks = block_table.num_blocks_per_row[req_index]
return (block_table.block_table_np[req_index, :num_blocks] ==
req_state.block_ids).all()
block_table_values = block_table.block_table_np[req_index, :num_blocks]
return (block_table_values == req_block_ids).all()
def test_update_states_new_request(model_runner):

35
vllm/v1/worker/tpu_model_runner.py
View File

@ -175,11 +175,21 @@ class TPUModelRunner(LoRAModelRunnerMixin):
self.kv_caches: list[torch.Tensor] = []
# req_id -> (input_id -> encoder_output)
self.encoder_cache: dict[str, dict[int, torch.Tensor]] = {}
# self.input_batch: InputBatch # Persistent batch.
# Request states.
self.requests: dict[str, CachedRequestState] = {}
# Initialize input batch early to avoid AttributeError in _update_states
self.input_batch = InputBatch(
max_num_reqs=self.max_num_reqs,
max_model_len=self.max_model_len,
max_num_batched_tokens=self.max_num_tokens,
device=self.device,
pin_memory=self.pin_memory,
vocab_size=self.model_config.get_vocab_size(),
block_size=self.block_size,
)
# Cached torch/numpy tensor
# The pytorch tensor and numpy array share the same buffer.
# Sometimes the numpy op is faster so we create both.
@ -1286,16 +1296,19 @@ class TPUModelRunner(LoRAModelRunnerMixin):
"Hybrid models with more than one KV cache type are not "
"supported yet.")
self.input_batch = InputBatch(
max_num_reqs=self.max_num_reqs,
max_model_len=self.max_model_len,
max_num_batched_tokens=self.max_num_tokens,
device=self.device,
pin_memory=self.pin_memory,
vocab_size=self.model_config.get_vocab_size(),
block_size=kv_cache_config.kv_cache_groups[0].kv_cache_spec.
block_size,
)
if kv_cache_config.kv_cache_groups[
0].kv_cache_spec.block_size != self.block_size:
self.input_batch = InputBatch(
max_num_reqs=self.max_num_reqs,
max_model_len=self.max_model_len,
max_num_batched_tokens=self.max_num_tokens,
device=self.device,
pin_memory=self.pin_memory,
vocab_size=self.model_config.get_vocab_size(),
block_size=kv_cache_config.kv_cache_groups[0].kv_cache_spec.
block_size,
)
# Verify dtype compatibility between block_table_cpu and input_batch
assert self.block_table_cpu.dtype == self.input_batch.block_table[
0].get_cpu_tensor().dtype