How many GPUs do you need to train an AI model?
One GPU for most fine-tunes, 8 or more for full training of large models and pretraining. Size it with two floors: memory to fit and GPU-hours to finish.
distributed
2 posts with the tag “distributed”
How do you train a PyTorch model on multiple GPUs?
Use DDP when the model fits on one GPU, FSDP when it doesn't, and launch with torchrun. Code, memory math and a cost check for going multi-node.