Large Parallelism Post: Part II Megatron-LM: Training Multi-Billion Parameter Language Models Using Model Parallelism
#parallelism
Во второй части нашего ралли по методам параллелизма я подробно разобрал Tensor Parallelism на основе статьи Megatron-LM 🌿
Сама суть методики заключается в параллелизме не просто слоев модели, а ее блоков. В статье разработан пайплайн разделения блоков трансформера (MLP и Attention) с помощью column и row parallelism - так достигается корректность матричных вычислений и нелинейных функций. Особое внимание уделено минимизации коммуникации между GPU - на Forward и Backward приходится всего 4 AllReduce. Также исследован совмещенный пайплайн: Tensor Parallelism + Data Parallel 🪑
Large Parallelism Post: Part II Megatron-LM: Training Multi-Billion Parameter Language Models Using Model Parallelism
#parallelism
Во второй части нашего ралли по методам параллелизма я подробно разобрал Tensor Parallelism на основе статьи Megatron-LM 🌿
Сама суть методики заключается в параллелизме не просто слоев модели, а ее блоков. В статье разработан пайплайн разделения блоков трансформера (MLP и Attention) с помощью column и row parallelism - так достигается корректность матричных вычислений и нелинейных функций. Особое внимание уделено минимизации коммуникации между GPU - на Forward и Backward приходится всего 4 AllReduce. Также исследован совмещенный пайплайн: Tensor Parallelism + Data Parallel 🪑
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from ye
