Only the vocoder and mel_converter are needed during BigVGAN training.
The rest of the SelVA pipeline (CLIP ViT-H, synchformer, T5, generator,
VAE) was staying on GPU and consuming ~90 GiB, leaving no room for
backward pass activations. Now offloaded individually to CPU before
the training loop starts.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>