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[Fix] Better error message when there is OOM during cache initialization #203

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Merged
merged 3 commits into from
Jun 22, 2023
Merged

[Fix] Better error message when there is OOM during cache initialization #203

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7f3666d
[Fix] Better error message when there is OOM during cache initalization
zhuohan123 Jun 22, 2023
cdba105
fix
zhuohan123 Jun 22, 2023
5d71b28
Update llm_engine.py
zhuohan123 Jun 22, 2023
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6 changes: 6 additions & 0 deletions vllm/engine/llm_engine.py
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Expand Up @@ -127,6 +127,12 @@ def _init_cache(self) -> None:
# FIXME(woosuk): Change to debug log.
logger.info(f'# GPU blocks: {num_gpu_blocks}, '
f'# CPU blocks: {num_cpu_blocks}')

if num_gpu_blocks <= 0 or num_cpu_blocks <= 0:
raise ValueError("No available memory for the cache blocks. "
"Try increasing `gpu_memory_utilization` when "
"initializing the engine.")

self.cache_config.num_gpu_blocks = num_gpu_blocks
self.cache_config.num_cpu_blocks = num_cpu_blocks

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1 change: 1 addition & 0 deletions vllm/outputs.py
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Expand Up @@ -53,6 +53,7 @@ class RequestOutput:
prompt: The prompt string of the request.
prompt_token_ids: The token IDs of the prompt.
outputs: The output sequences of the request.
finished: Whether the whole request is finished.
"""
def __init__(
self,
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