How does Data Parallelism work?

The technique scales naturally with the number of available GPUs as long as the model fits on a single device, making it the default for small-to-medium model training. For larger models that exceed single-GPU memory, data parallelism is combined with tensor parallelism, pipeline parallelism, or sharding techniques like FSDP and ZeRO in 3D parallelism arrangements. The platform strengthens e