How to Manage GPU Resource Utilization in Tensorflow and Keras | Summary and Q&A

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August 8, 2019
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Machine Learning with Phil
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How to Manage GPU Resource Utilization in Tensorflow and Keras

TL;DR

Learn how to manage GPU resources in TensorFlow and Keras, optimizing memory allocation and enabling parallel model execution.

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Questions & Answers

Q: Why is GPU resource management important in machine learning frameworks?

GPU resource management is crucial to ensure efficient memory usage and enable parallel execution of models, allowing for faster training and testing of machine learning algorithms.

Q: How does TensorFlow allocate VRAM by default, and why can it be problematic?

TensorFlow automatically allocates all available VRAM, which can cause memory issues when running multiple models or different frameworks simultaneously, limiting the ability to allocate VRAM to other processes.

Q: How can you configure GPU resource allocation in TensorFlow to optimize memory usage?

By setting "allow_growth" to "True" in TF config GPU options and invoking the session with the updated configuration, TensorFlow will allocate only the necessary memory initially, expanding as needed.

Q: How can you manage GPU resources in Keras without the TF config object?

In Keras, GPU resource management can be achieved by setting environment variables using the "os" library. Key variables to set are "CUDA_DEVICE_ORDER" and "CUDA_VISIBLE_DEVICES" to specify GPU devices and "TF_FORCE_GPU_ALLOW_GROWTH" to enable dynamic VRAM allocation.

Summary & Key Takeaways

  • The content focuses on GPU resource allocation in TensorFlow and Keras, allowing for efficient memory usage and running multiple models simultaneously.

  • The author demonstrates how TensorFlow automatically allocates VRAM, potentially causing memory issues when running multiple models or different frameworks.

  • The tutorial provides code snippets and explanations for configuring GPU resource allocation in both TensorFlow and Keras, improving memory usage and enabling parallel model execution.

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