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mmengine.optim.build_optim_wrapper

mmengine.optim.build_optim_wrapper(model, cfg)[source]

Build function of OptimWrapper.

If constructor is set in the cfg, this method will build an optimizer wrapper constructor, and use optimizer wrapper constructor to build the optimizer wrapper. If constructor is not set, the DefaultOptimWrapperConstructor will be used by default.

Parameters
  • model (nn.Module) – Model to be optimized.

  • cfg (dict) – Config of optimizer wrapper, optimizer constructor and optimizer.

Returns

The built optimizer wrapper.

Return type

OptimWrapper

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