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Open Pretrained Transformer - ML Coding Series

Aleksa Gordić - The AI Epiphany via YouTube

Overview

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This course walks through the metaseq codebase behind Meta’s OPT-175B large language model, covering environment setup, transformer construction, dummy data, and the training loop. It also explains mixed-precision training, loss scaling, gradient handling, and CUDA/C++ kernels.

Syllabus

Intro - open pretrained transformer
Setup creating the cond env
Setup patch the code
Collecting train script arguments
Training script walk-through
Constructing a dummy task
Building the transformer model
CUDA kernels C++ code
Preparing a dummy dataset
Training loop
Zero grad loss scaling
Forward pass through a transformer
IMPORTANT loss, scaling, mixed precision, error handling
Outro

Taught by

Aleksa Gordić - The AI Epiphany

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