a  þdâã@s"dZddlZd dd„Zdd„ZdS) zC Batch size decay and retry helpers. Copyright 2022 Ross Wightman éNéFcCsj|dkr dStdt |d¡t d¡ƒ}t||dƒ}|||d||}|rf|drf|d8}|S)ay power of two batch-size decay with intra steps Decay by stepping between powers of 2: * determine power-of-2 floor of current batch size (base batch size) * divide above value by num_intra_steps to determine step size * floor batch_size to nearest multiple of step_size (from base batch size) Examples: num_steps == 4 --> 64, 56, 48, 40, 32, 28, 24, 20, 16, 14, 12, 10, 8, 7, 6, 5, 4, 3, 2, 1 num_steps (no_odd=True) == 4 --> 64, 56, 48, 40, 32, 28, 24, 20, 16, 14, 12, 10, 8, 6, 4, 2 num_steps == 2 --> 64, 48, 32, 24, 16, 12, 8, 6, 4, 3, 2, 1 num_steps == 1 --> 64, 32, 16, 8, 4, 2, 1 érr)ÚintÚmathÚlogÚmax)Z batch_sizeZnum_intra_stepsZno_oddZbase_batch_sizeZ step_size©rú_/var/www/html/stable-diffusion-webui/venv/lib/python3.9/site-packages/timm/utils/decay_batch.pyÚdecay_batch_steps   r cCs$| ¡}d|vrdSd|vr dSdS)z_ check failure error string for conditions where batch decay retry should not be attempted z required rankFÚillegalT)Úlower)Z error_strrrr Úcheck_batch_size_retry s r )rF)Ú__doc__rr r rrrr Ús