U ʹjW@sddlZddlZddlmZmZmZmZddlZddlm Z m Z ddl m Z m Z mZddddd gZe ee d d d Ze eeee d d dZe edddZe jfe eee dddZe edddZde eee dddZe ee dddZe edddZe eje dddZdS)N)AnyListOptionalSet)_ShardingIterDataPipeSHARDING_PRIORITIES)DataPipe DataPipeGraph traverse_dpsapply_random_seedapply_shardingapply_shuffle_seedapply_shuffle_settingsget_all_graph_pipes)graphreturncCs t|tSN)_get_all_graph_pipes_helperset)rr^/var/www/html/bwave/python/venv/lib/python3.8/site-packages/torch/utils/data/graph_settings.pyrs)rid_cachercCsLg}|D]:\}\}}||kr"q |||||t||q |Sr)itemsaddappendextendr)rrresultsZdp_iddatapipe sub_graphrrrrs  r)rrcCs,t|trdSt|dr(t|jr(dSdS)NTr F) isinstancerhasattrinspectismethodr rrrr_is_sharding_datapipe&s  r$)rnum_of_instances instance_idrcs(t|}dfdd ||S)z Apply dynamic sharding over the ``sharding_filter`` DataPipe that has a method ``apply_sharding``. RuntimeError will be raised when multiple ``sharding_filter`` are presented in the same branch. Ncs|D]\}}d}t|rt|dk r8td|d|t|j}t|jdkr`|n|jd|}|dkr|}||qdS)NzoSharding twice on a single pipeline is likely unintended and will cause data loss. Sharding already applied to z while trying to apply to )sharding_group)valuesr$ RuntimeErrorr! signaturer len parameters)rZ prev_appliedZdprZappliedsig_helperr&r%r(rrr08s zapply_sharding.._helper)N)r )rr%r&r(rrr/rr .scCs8t|drt|dsdSt|jr0t|js4dSdS)N set_shuffleset_seedFT)r r!r"r1r2r#rrr_is_shuffle_datapipeOs r3)rshufflercCsb|dkr |St|}t|}dd|D}|sJ|rJtd|}|g}|D]}||qN|S)a. Traverse the graph of ``DataPipes`` to find and set shuffle attribute to each `DataPipe` that has APIs of ``set_shuffle`` and ``set_seed``. Args: datapipe: DataPipe that needs to set shuffle attribute shuffle: Shuffle option (default: ``None`` and no-op to the graph) NcSsg|]}t|r|qSr)r3).0piperrr esz*apply_shuffle_settings..z`shuffle=True` was set, but the datapipe does not contain a `Shuffler`. Adding one at the end. Be aware that the default buffer size might not be sufficient for your task.)r rwarningswarnr4r1)rr4r all_pipesZ shufflersZshufflerrrrrWs  )rrngrcCstdt||S)Nz`apply_shuffle_seed` is deprecated since 1.12 and will be removed in the future releases. Please use `apply_random_seed` instead.)r8r9r )rr;rrrr tscCst|drt|jrdSdS)Nr2TF)r r!r"r2r#rrr_is_random_datapipe|sr<cCst|}t|}t}g}|D]2}t||kr0qt|r|||t|q|D].}ttj dtj dj |d }| |qV|S)a Traverse the graph of ``DataPipes`` to find random ``DataPipe`` with an API of ``set_seed`` then set the random seed based on the provided RNG. Args: datapipe: DataPipe that needs to set randomness rng: Random number generator to generate random seeds r)Zdtype) generator)r rridr<rrinttorchemptyZint64Zrandom_itemr2)rr;rr:cacheZrandom_datapipesr6Z random_seedrrrr s     )N)r!r8typingrrrrr@Z(torch.utils.data.datapipes.iter.shardingrrZtorch.utils.data.graphrr r __all__rr?rboolr$DEFAULTr r3rr r< Generatorr rrrrs2    !