Ng dZddlZddZdZdS)zC Batch size decay and retry helpers. Copyright 2022 Ross Wightman NFc|dkrdStdtj|dz tjdzz}t||zd}|||z dz |z|zz}|r |dzr|dz}|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 rr)intmathlogmax) batch_sizenum_intra_stepsno_oddbase_batch_size step_sizes R/var/www/html/ai-engine/env/lib/python3.11/site-packages/timm/utils/decay_batch.pydecay_batch_steprsQq!a 8 8DHQKK GHIIOO6::I Z/%AA%E)$SW`#``J *q.a cF|}d|vrdSd|vrdSdS)z_ check failure error string for conditions where batch decay retry should not be attempted z required rankFillegalT)lower) error_strs rcheck_batch_size_retryr s:!!I)##uIu 4r)rF)__doc__rrrrrrsG 0     r