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DeepSpeedPrecisionPlugin

class pytorch_lightning.plugins.precision.DeepSpeedPrecisionPlugin(precision)[source]

Bases: pytorch_lightning.plugins.precision.precision_plugin.PrecisionPlugin

Precision plugin for DeepSpeed integration.

backward(model, closure_loss, *args, **kwargs)[source]

Performs the actual backpropagation.

Parameters
  • model (LightningModule) – the model to be optimized

  • closure_loss (Tensor) – the loss value obtained from the closure

  • optimizer – current optimizer being used. None if using manual optimization

Return type

None

clip_gradients(optimizer, clip_val=0.0, gradient_clip_algorithm=<GradClipAlgorithmType.NORM: 'norm'>)[source]

DeepSpeed handles gradient clipping internally.

Return type

None

optimizer_step(model, optimizer, optimizer_idx, closure, **kwargs)[source]

Hook to run the optimizer step.

Return type

None