~/talk

Habitat: A Runtime-Based Computational Performance Predictor...

Talkat USENIX ATC '21 · 2021-07-14..07-16· [machine-learning]
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name:Yubo Gao
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Habitat predicts a single training-iteration execution time by profiling operations on an available GPU and scaling per-kernel timings to other GPUs, using wave scaling for kernel waves and pre-trained multilayer perceptrons for kernel-varying cases. Implemented as a Python library that supports PyTorch and is open source, it reports an average error of 11.8% average error across ResNet-50, Inception v3, Transformer, GNMT, and DCGAN on six GPUs (e.g., 2070, V100, T4), and it drives cost-versus-performance choices such as when V100 vs T4 is worth renting.

AI-written summary · about

  1. 0:00Intro
  2. 0:26What this talk is about The problem: • Many GPUs available for deep neural network (DNN) training . Each has a different cost and performance
  3. 1:38A Cambrian explosion in hardware for training
  4. 2:23Choosing a GPU: The paradox of choice
  5. 4:22Key observations • Deep learning users may already have an existing GPU
  6. 5:03Habitat: A runtime-based performance predictor
  7. 10:24One last wrinkle: Kernel-varying operations Wave scaling assumes the same kernel is used across GPUS
  8. 10:45Evaluation
  9. 11:38How accurate is Habitat?
  10. 12:42Rent a GPU in the cloud? Scenario: Want to train GNMT, have access to a P4000. Which cloud GPU to use, if any?
  11. 15:09Key takeaways . DNN computation is special (repetitive), enabling new analysis opportunities
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