Vhm ddlZddlmZmZddlmZddlZddlmZ ddlm Z m Z gdZ deejjde fdZdeeejjeeeejjfffd Zdeeejjeeeejjffde fd Zy) N)IterableIterator)Union)group ProcessGroup)average_parametersget_params_to_average&average_parameters_or_parameter_groupsparams process_groupc||ntj}tj|ryt j |\}}t j|Dcgc]}|jjdc}}|tj|z}t jjrt jjtj||d}|D]N}||||jzj!|j#||_||jz }Pycc}w)z Averages all the given parameters. For allreduce efficiency, all the parameters are flattened into a contiguous buffer. Thus, it requires extra memory of the same size as the given parameters. N)rr)rWORLDdist_rank_not_in_group itertoolsteetorchcatdatareshapeget_world_size accelerator is_available synchronize all_reducenumelview_astype_as)r r group_to_use params_it1 params_it2p flat_paramsoffsets b/home/dcms/DCMS/lib/python3.12/site-packages/torch/distributed/algorithms/model_averaging/utils.pyrrs%2$==5;;L |,&]]62J ))DAQVV^^B/DEK4&&|44K %%' %%'OOK|4 F Vfqwwy&89AA!DLLQO!'')Es"EcBg}|D]}t|tjjr!|}|j6|j |Ht|t r)|dD] }|j|j |"tdt|d|S)z Return a list of parameters that need to average. This filters out the parameters that do not contain any gradients. Args: params: The parameters of a model or parameter groups of an optimizer. r zParameter input of type z is not supported) isinstancernn ParametergradappenddictNotImplementedErrortype)r filtered_paramsparam param_datas r&r r 6sO eUXX// 0J*&&z2 t $#Ho 7 ??.#**:6 7&*4;-7HI  c@ttt||y)zCAverages parameters of a model or parameter groups of an optimizer.N)riterr )r r s r&r r Vst1&9:MJr3)rcollections.abcrrtypingrrtorch.distributed distributedrrr__all__r)r*rr-strr r r3r&r=s. 2  UXX'' (9E> ##$c588---./ 1 @K ##$htC9K9K4K/L&MM K Kr3