Explore the many ways to train foundation models on AWS (CMP321)

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Scaling Machine Learning Models with AWS

Model Complexity and Computational Needs

  • Machine learning models have seen exponential growth in the number of parameters, from perceptron models in the 1950s to GPT models with trillions of parameters today.
  • This growth in model complexity has led to an increased need for high computational power, reaching petaflops of computing power to train large models like GPT-4.
  • Training these large models can take days or even months, highlighting the challenge of scaling machine learning.

AWS Generative AI Stack

  • The AWS Generative AI stack for training large-scale models consists of several key components:
    • Infrastructure: GPU instances like P4d, P5, and P5e, along with Trainium and EFA for networking and acceleration.
    • Managed services: Amazon Sagemaker, EC2 Capacity Reservations, and Nitro for serving and inference.
    • Orchestration and tools: Amazon Bedrock, Amazon Q suite for building and deploying AI applications.

Orchestrating ML Training on AWS

  • Key challenges in large-scale distributed training include:
    1. Cluster provisioning and management
    2. Infrastructure stability and resilience to failures
    3. Optimizing distributed training performance
  • The SageMaker HyperPod service addresses these challenges by:
    • Providing a turnkey solution for cluster creation and management
    • Implementing auto-resume capabilities for fault-tolerance
    • Optimizing the training environment for high performance

NinjaTech's Journey with AWS

  • NinjaTech, an AI startup, has built its platform on top of the AWS Generative AI stack.
  • They use a multi-step process to train their models, including code generation, execution verification, and fine-tuning.
  • AWS services like CloudWatch, DynamoDB, and SageMaker have been critical in enabling NinjaTech's "agentic compound AI" architecture.
  • NinjaTech's "Super Agent" model, which leverages multiple external and internal models, has achieved state-of-the-art results on various benchmarks.

Additional Resources

  • The "Awesome Distributed Training" GitHub repository provides guidelines, examples, and best practices for running distributed machine learning workloads on AWS.
  • The repository includes information on cluster provisioning, infrastructure stability, performance optimization, and observability.
  • Upcoming sessions on the AWS Insight profiling tool are recommended for a deeper dive into distributed training performance.

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