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Signed-off-by: Sage Moore <sage@neuralmagic.com>
This commit is contained in:
Sage Moore 2025-07-03 14:33:53 +00:00
parent 7cc5a549ad
commit 0056be26f6
1 changed files with 10 additions and 14 deletions
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24
vllm/v1/worker/gpu_model_runner.py
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@ -573,6 +573,11 @@ class GPUModelRunner(LoRAModelRunnerMixin):
max_num_scheduled_tokens: int,
scheduler_output: "SchedulerOutput"
) -> tuple[Optional[UBatchSlices], int, Optional[torch.Tensor]]:
# Don't bother with the should_ubatch handshaking unless microbatching
# is enabled
if not self.parallel_config.enable_microbatching:
return (None, 0, None)
total_num_scheduled_tokens = scheduler_output.total_num_scheduled_tokens
num_reqs = self.input_batch.num_reqs
should_attempt_ubatching = \
@ -2380,21 +2385,12 @@ class GPUModelRunner(LoRAModelRunnerMixin):
is_profile: bool = False,
) -> tuple[torch.Tensor, torch.Tensor]:
# if allow_microbatching:
# logger.info("ATTEMPTING TO UBATCH THE DUMMY RUN")
# TODO(Sage) We need some more code to properly handle
# mixing normal and dummy runs. The DP padding needs to
# be properly setup. Since we only support microbatching
# in cuda graph capture it's fine to ignore the DP padding
# for now.
# _dummy_run doesn't go through _prepare_inputs so
# we synchronize with other DP ranks here
# logger.info(f"NUM TOKENS {num_tokens} SHOULD UBATCH {should_ubatch}")
_ = self.should_ubatch(False)
# Padding for DP
# logger.info("PADDING DUMMY")
# we synchronize with other DP groups that may be
# attempting to microbatch here.
if self.parallel_config.enable_microbatching:
_ = self.should_ubatch(False)
num_pad, num_tokens_across_dp = self.get_dp_padding(num_tokens)
num_tokens += num_pad
# Set num_scheduled_tokens based on num_tokens and max_num_seqs