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fix: gpu memory report in vllm sleep mode #1101

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fix: gpu memory report in vllm sleep mode #1101

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781b421
fix gpu memory report
hiyouga Apr 15, 2025
3fd8db1
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hiyouga Apr 15, 2025
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7 changes: 5 additions & 2 deletions verl/utils/debug/performance.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,8 +19,11 @@

def log_gpu_memory_usage(head: str, logger: logging.Logger = None, level=logging.DEBUG, rank: int = 0):
if (not dist.is_initialized()) or (rank is None) or (dist.get_rank() == rank):
memory_allocated = torch.cuda.memory_allocated() / 1024**3
memory_reserved = torch.cuda.memory_reserved() / 1024**3
# take care of vllm sleep mem, see https://github.com/volcengine/verl/pull/1101
free_mem, total_mem = torch.cuda.mem_get_info()
vllm_sleep_mem = torch.cuda.memory_reserved() - (total_mem - free_mem)
memory_allocated = (torch.cuda.memory_allocated() - vllm_sleep_mem) / 1024**3
memory_reserved = (torch.cuda.memory_reserved() - vllm_sleep_mem) / 1024**3

message = f'{head}, memory allocated (GB): {memory_allocated}, memory reserved (GB): {memory_reserved}'

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