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如何克服多GPU环境下文本检索任务评估的技术难点?

2025-08-30 1.5 K

分布式计算痛点

当评估十亿级文本检索任务时,单GPU可能需数天完成。MTEB支持通过BEIR库的多GPU扩展实现线性加速。

分步实施指南

environmental preparation

pip install git+https://github.com/NouamaneTazi/beir@nouamane/better-multi-gpu

priming command

torchrun --nproc_per_node=4 
    scripts/retrieval_multigpu.py 
    --model_name_or_path all-MiniLM-L6-v2 
    --task_name nfcorpus

Description of key parameters

  • --nproc_per_node:每个节点的GPU数量(需匹配CUDA_VISIBLE_DEVICES)
  • --dataset_dir:建议将数据集挂载到共享存储
  • --metric_for_early_stopping:设置ndcg@10等早停指标

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