o {i @sddlmZmZmZmZddlZddlmZddl m Z ddl m Z mZddeeejfded eeejffd d Zd ejd eded eejfddZdd ejd eed eejfddZdS))AnyDictListOptionalN) functional)get_default_process_groupget_world_sizeT input_dictaveragereturncCst}|dkr |St>g}g}t|D]}|||||qtj|dd}t||r9||}ddt ||D}Wd|S1sNwY|S)aG Reduce the values in the dictionary from all processes so that all processes have the averaged results. Returns a dictionary with the same fields as the input dictionary, after reduction. Args: input_dict (dict): all the values will be reduced average (bool): whether to do average or sum rrdimcSsi|]\}}||qSr).0kvrr[/data/cameron/keygrip/volume_dino_tracks/dinov3/distributed/torch_distributed_primitives.py 'zreduce_dict..N) r torchno_gradsortedkeysappendstackdist all_reducezip)r r world_sizenamesvaluesrZstacked_values reduced_dictrrr reduce_dicts$       r#resultgrouprcs(fddt|D}t|||S)Ncg|]}tqSrr zeros_liker_r$rr ,rz._simple_gather_all_tensors..)ranger all_gather)r$r%rgathered_resultrr+r_simple_gather_all_tensors+sr0c sN|durt}|}t}tj|d|jdkrt|||Stj|j |j dfddt |D}tj ||dt |jddjtfdd |D}|rXt|||Sg}}t|D]}|d||qft||fd dt |D}t ||t|D]\} } d d| D} || | || <q|S) a Copied from https://github.com/Lightning-AI/torchmetrics/blob/master/src/torchmetrics/utilities/distributed.py Gather all tensors from several ddp processes onto a list that is broadcasted to all processes. Works on tensors that have the same number of dimensions, but where each dimension may differ. In this case tensors are padded, gathered and then trimmed to secure equal workload for all processes. Args: result: the value to sync group: the process group to gather results from. Defaults to all processes (world) Return: list with size equal to the process group where element i corresponds to result tensor from process i N)r%r)devicecr&rr'r)) local_sizerrr,Orz&gather_all_tensors..r c3s|] }t|kVqdSN)all)rls)max_sizerr Rsz%gather_all_tensors..cr&rr'r)) result_paddedrrr,_rcSsg|]}t|qSr)slice)rdim_sizerrrr,bs)r contiguousr rbarrierndimr0rtensorshaper1r-r.rmaxr!r4detachcpureversedritemFpad enumerate) r$r%rZ local_sizesZall_sizes_equalZpad_dimsZpad_byvalr/idxZ item_sizeZ slice_paramr)r2r6r8rgather_all_tensors1s4       rJ)Tr3)typingrrrrrtorch.distributed distributedrtorch.nnrrEtorch_distributed_wrapperrr Tensorboolr#intr0rJrrrrs  ,"(