U yâh<ã@s6ddlZddlmZdgZdd„ZGdd„deƒZdS)éNé)Ú BaseSchedulerÚCubicSLcCst|t||ƒƒS©N)ÚmaxÚmin)ÚxÚloÚhi©r ú\/var/www/html/venv/lib/python3.8/site-packages/torch/ao/pruning/scheduler/cubic_scheduler.pyÚ_clampsr cs8eZdZdZd‡fdd „ Zedd d „ƒZd d „Z‡ZS)raÛSets the sparsity level of each parameter group to the final sl plus a given exponential function. .. math:: s_i = s_f + (s_0 - s_f) \cdot \left( 1 - \frac{t - t_0}{n\Delta t} \right)^3 where :math:`s_i` is the sparsity at epoch :math:`t`, :math;`s_f` is the final sparsity level, :math:`f(i)` is the function to be applied to the current epoch :math:`t`, initial epoch :math:`t_0`, and final epoch :math:`t_f`. :math:`\Delta t` is used to control how often the update of the sparsity level happens. By default, Args: sparsifier (BaseSparsifier): Wrapped sparsifier. init_sl (int, list): Initial level of sparsity init_t (int, list): Initial step, when pruning starts delta_t (int, list): Pruning frequency total_t (int, list): Total number of pruning steps initially_zero (bool, list): If True, sets the level of sparsity to 0 before init_t (:math:`t_0`). Otherwise, the sparsity level before init_t (:math:`t_0`) is set to init_sl(:math:`s_0`) last_epoch (int): The index of last epoch. Default: -1. verbose (bool): If ``True``, prints a message to stdout for each update. Default: ``False``. çré édFéÿÿÿÿc sV||_| |¡|_| |¡|_| |¡|_| |¡|_| |¡|_tƒ |||¡dSr) Ú sparsifierZ_make_sure_a_listÚinit_slÚinit_tÚdelta_tÚtotal_tÚinitially_zeroÚsuperÚ__init__) ÚselfrrrrrrÚ last_epochÚverbose©Ú __class__r r r's      zCubicSL.__init__cCsD|r||krdS|||d||||d}t|||ƒ}|S)a]"Computes the current level of sparsity. Based on https://arxiv.org/pdf/1710.01878.pdf Args: s_0: Initial level of sparsity, :math:`s_i` s_f: Target level of sparsity, :math:`s_f` t: Current step, :math:`t` t_0: Initial step, :math:`t_0` dt: Pruning frequency, :math:`\Delta T` n: Pruning steps, :math:`n` initially_zero: Sets the level of sparsity to 0 before t_0. If False, sets to s_0 Returns: The sparsity level :math:`s_t` at the current step :math:`t` rgð?é)r )Ús_0Ús_fÚtÚt_0ÚdtÚnrZs_tr r r Úsparsity_compute_fn<s  $ zCubicSL.sparsity_compute_fncs<ˆjst d¡‡fdd„tˆjˆjˆjˆjˆjˆj ƒDƒS)NzUTo get the last sparsity level computed by the scheduler, please use `get_last_sl()`.c s2g|]*\}}}}}}ˆj||ˆj||||d‘qS))r r!r"r#r$r%r)r&r)Ú.0Zinitial_sparsityZfinal_sparsityZ initial_epochZ delta_epochZinterval_epochsr©rr r Ú Zs øùz"CubicSL.get_sl..) Z_get_sl_called_within_stepÚwarningsÚwarnÚziprZbase_slrrrrr(r r(r Úget_slUsÿ úözCubicSL.get_sl)rrrrFrF)F) Ú__name__Ú __module__Ú __qualname__Ú__doc__rÚ staticmethodr&r-Ú __classcell__r r rr r sø )r*Zbase_schedulerrÚ__all__r rr r r r Ús