




'''simple docstring'''





import datasets
import faiss
import numpy as np
import streamlit as st
import torch
from elasticsearch import Elasticsearch
from elia_utils import (
    embed_questions_for_retrieval,
    make_qa_sas_model,
    qa_sas_generate,
    query_es_index,
    query_qa_dense_index,
)

import transformers
from transformers import AutoModel, AutoModelForSeqaSeqLM, AutoTokenizer


_SCREAMING_SNAKE_CASE							:       Any						=			"bart"
_SCREAMING_SNAKE_CASE							:       List[str]						=			True


@st.cache(allow_output_mutation=snake_case					)
def 					UpperCamelCase_(     ):

							'''simple docstring'''






							if LOAD_DENSE_INDEX:
														snake_case_      =				AutoTokenizer.from_pretrained("yjernite/retribert-base-uncased"					)
														snake_case_      =				AutoModel.from_pretrained("yjernite/retribert-base-uncased"					).to("cuda:0"					)
														snake_case_      =				qar_model.eval()
							else:
														snake_case_ ,				snake_case_      =				(None, None)
							if MODEL_TYPE == "bart":
														snake_case_      =				AutoTokenizer.from_pretrained("yjernite/bart_eli5"					)
														snake_case_      =				AutoModelForSeqaSeqLM.from_pretrained("yjernite/bart_eli5"					).to("cuda:0"					)
														snake_case_      =				torch.load("seq2seq_models/eli5_bart_model_blm_2.pth"					)
														sas_model.load_state_dict(save_dict["model"]					)
														snake_case_      =				sas_model.eval()
							else:
														snake_case_ ,				snake_case_      =				make_qa_sas_model(
														    model_name="t5-small"							,    from_file="seq2seq_models/eli5_t5_model_1024_4.pth"							,    device="cuda:0"					)
							return (qar_tokenizer, qar_model, sas_tokenizer, sas_model)


@st.cache(allow_output_mutation=snake_case					)
def 					UpperCamelCase_(     ):

							'''simple docstring'''






							if LOAD_DENSE_INDEX:
														snake_case_      =				faiss.StandardGpuResources()
														snake_case_      =				datasets.load_dataset(path="wiki_snippets"							,    name="wiki40b_en_100_0"					)["train"]
														snake_case_      =				np.memmap(
														    "wiki40b_passages_reps_32_l-8_h-768_b-512-512.dat"							,    dtype="float32"							,    mode="r"							,    shape=(wikiaab_passages.num_rows, 1_2_8)							,    )
														snake_case_      =				faiss.IndexFlatIP(1_2_8					)
														snake_case_      =				faiss.index_cpu_to_gpu(snake_case							,    1							,    snake_case					)
														wikiaab_gpu_index_flat.add(snake_case					)  # TODO fix for larger GPU
							else:
														snake_case_ ,				snake_case_      =				(None, None)
							snake_case_      =				Elasticsearch([{"host": "localhost", "port": "9200"}]					)
							return (wikiaab_passages, wikiaab_gpu_index_flat, es_client)


@st.cache(allow_output_mutation=snake_case					)
def 					UpperCamelCase_(     ):

							'''simple docstring'''






							snake_case_      =				datasets.load_dataset("eli5"							,    name="LFQA_reddit"					)
							snake_case_      =				elia["train_eli5"]
							snake_case_      =				np.memmap(
							    "eli5_questions_reps.dat"							,    dtype="float32"							,    mode="r"							,    shape=(elia_train.num_rows, 1_2_8)					)
							snake_case_      =				faiss.IndexFlatIP(1_2_8					)
							eli5_train_q_index.add(snake_case					)
							return (elia_train, eli5_train_q_index)


_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE							:       Optional[Any]						=			load_indexes()
_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE							:       Optional[int]						=			load_models()
_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE							:       int						=			load_train_data()


def 					UpperCamelCase_(     snake_case							:	Union[str, Any]							,    snake_case							:	List[Any]=1_0					):

							'''simple docstring'''






							snake_case_      =				embed_questions_for_retrieval([question]							,    snake_case							,    snake_case					)
							snake_case_ ,				snake_case_      =				eli5_train_q_index.search(snake_case							,    snake_case					)
							snake_case_      =				[elia_train[int(snake_case					)] for i in I[0]]
							return nn_examples


def 					UpperCamelCase_(     snake_case							:	Optional[Any]							,    snake_case							:	Any="wiki40b"							,    snake_case							:	Optional[Any]="dense"							,    snake_case							:	Optional[int]=1_0					):

							'''simple docstring'''






							if source == "none":
														snake_case_ ,				snake_case_      =				(" <P> ".join(["" for _ in range(1_1					)]					).strip(), [])
							else:
														if method == "dense":
																					snake_case_ ,				snake_case_      =				query_qa_dense_index(
																					    snake_case							,    snake_case							,    snake_case							,    snake_case							,    snake_case							,    snake_case					)
														else:
																					snake_case_ ,				snake_case_      =				query_es_index(
																					    snake_case							,    snake_case							,    index_name="english_wiki40b_snippets_100w"							,    n_results=snake_case							,    )
							snake_case_      =				[
							    (res["article_title"], res["section_title"].strip(), res["score"], res["passage_text"]) for res in hit_lst
							]
							snake_case_      =				"question: {} context: {}".format(snake_case							,    snake_case					)
							return question_doc, support_list


@st.cache(
    hash_funcs={
        torch.Tensor: (lambda snake_case					: None),
        transformers.models.bart.tokenization_bart.BartTokenizer: (lambda snake_case					: None),
    }					)
def 					UpperCamelCase_(     snake_case							:	int							,    snake_case							:	str							,    snake_case							:	Optional[int]							,    snake_case							:	str=6_4							,    snake_case							:	str=2_5_6							,    snake_case							:	str=False							,    snake_case							:	str=2							,    snake_case							:	str=0.95							,    snake_case							:	int=0.8					):

							'''simple docstring'''






							with torch.no_grad():
														snake_case_      =				qa_sas_generate(
														    snake_case							,    snake_case							,    snake_case							,    num_answers=1							,    num_beams=snake_case							,    min_len=snake_case							,    max_len=snake_case							,    do_sample=snake_case							,    temp=snake_case							,    top_p=snake_case							,    top_k=snake_case							,    max_input_length=1_0_2_4							,    device="cuda:0"							,    )[0]
							return (answer, support_list)


st.title("Long Form Question Answering with ELI5")

# Start sidebar
_SCREAMING_SNAKE_CASE							:       Optional[Any]						=			"<img src='https://huggingface.co/front/assets/huggingface_logo.svg'>"
_SCREAMING_SNAKE_CASE							:       Union[str, Any]						=			"\n<html>\n  <head>\n    <style>\n      .img-container {\n        padding-left: 90px;\n        padding-right: 90px;\n        padding-top: 50px;\n        padding-bottom: 50px;\n        background-color: #f0f3f9;\n      }\n    </style>\n  </head>\n  <body>\n    <span class=\"img-container\"> <!-- Inline parent element -->\n      %s\n    </span>\n  </body>\n</html>\n" % (
    header_html,
)
st.sidebar.markdown(
    header_full,
    unsafe_allow_html=True,
)

# Long Form QA with ELI5 and Wikipedia
_SCREAMING_SNAKE_CASE							:       int						=			"\nThis demo presents a model trained to [provide long-form answers to open-domain questions](https://yjernite.github.io/lfqa.html).\nFirst, a document retriever fetches a set of relevant Wikipedia passages given the question from the [Wiki40b](https://research.google/pubs/pub49029/) dataset,\na pre-processed fixed snapshot of Wikipedia.\n"
st.sidebar.markdown(description, unsafe_allow_html=True)

_SCREAMING_SNAKE_CASE							:       int						=			[
    "Answer the question",
    "View the retrieved document only",
    "View the most similar ELI5 question and answer",
    "Show me everything, please!",
]
_SCREAMING_SNAKE_CASE							:       Union[str, Any]						=			st.sidebar.checkbox("Demo options")
if demo_options:
		_SCREAMING_SNAKE_CASE							:       Dict						=			st.sidebar.selectbox(
		    "",
		    action_list,
		    index=3,
		)
		_SCREAMING_SNAKE_CASE							:       str						=			action_list.index(action_st)
		_SCREAMING_SNAKE_CASE							:       Optional[Any]						=			st.sidebar.selectbox(
		    "",
		    ["Show full text of passages", "Show passage section titles"],
		    index=0,
		)
		_SCREAMING_SNAKE_CASE							:       List[Any]						=			show_type == "Show full text of passages"
else:
		_SCREAMING_SNAKE_CASE							:       Dict						=			3
		_SCREAMING_SNAKE_CASE							:       Union[str, Any]						=			True

_SCREAMING_SNAKE_CASE							:       List[Any]						=			st.sidebar.checkbox("Retrieval options")
if retrieval_options:
		_SCREAMING_SNAKE_CASE							:       Tuple						=			"\n    ### Information retriever options\n\n    The **sparse** retriever uses ElasticSearch, while the **dense** retriever uses max-inner-product search between a question and passage embedding\n    trained using the [ELI5](https://arxiv.org/abs/1907.09190) questions-answer pairs.\n    The answer is then generated by sequence to sequence model which takes the question and retrieved document as input.\n    "
		st.sidebar.markdown(retriever_info)
		_SCREAMING_SNAKE_CASE							:       Any						=			st.sidebar.selectbox("Which Wikipedia format should the model use?", ["wiki40b", "none"])
		_SCREAMING_SNAKE_CASE							:       Any						=			st.sidebar.selectbox("Which Wikipedia indexer should the model use?", ["dense", "sparse", "mixed"])
else:
		_SCREAMING_SNAKE_CASE							:       Optional[Any]						=			"wiki40b"
		_SCREAMING_SNAKE_CASE							:       Tuple						=			"dense"

_SCREAMING_SNAKE_CASE							:       Union[str, Any]						=			"beam"
_SCREAMING_SNAKE_CASE							:       Dict						=			2
_SCREAMING_SNAKE_CASE							:       List[Any]						=			64
_SCREAMING_SNAKE_CASE							:       List[Any]						=			256
_SCREAMING_SNAKE_CASE							:       Optional[int]						=			None
_SCREAMING_SNAKE_CASE							:       Union[str, Any]						=			None
_SCREAMING_SNAKE_CASE							:       List[Any]						=			st.sidebar.checkbox("Generation options")
if generate_options:
		_SCREAMING_SNAKE_CASE							:       Union[str, Any]						=			"\n    ### Answer generation options\n\n    The sequence-to-sequence model was initialized with [BART](https://huggingface.co/facebook/bart-large)\n    weights and fine-tuned on the ELI5 QA pairs and retrieved documents. You can use the model for greedy decoding with\n    **beam** search, or **sample** from the decoder's output probabilities.\n    "
		st.sidebar.markdown(generate_info)
		_SCREAMING_SNAKE_CASE							:       Tuple						=			st.sidebar.selectbox("Would you like to use beam search or sample an answer?", ["beam", "sampled"])
		_SCREAMING_SNAKE_CASE							:       Dict						=			st.sidebar.slider(
		    "Minimum generation length", min_value=8, max_value=256, value=64, step=8, format=None, key=None
		)
		_SCREAMING_SNAKE_CASE							:       Dict						=			st.sidebar.slider(
		    "Maximum generation length", min_value=64, max_value=512, value=256, step=16, format=None, key=None
		)
		if sampled == "beam":
				_SCREAMING_SNAKE_CASE							:       int						=			st.sidebar.slider("Beam size", min_value=1, max_value=8, value=2, step=None, format=None, key=None)
		else:
				_SCREAMING_SNAKE_CASE							:       Dict						=			st.sidebar.slider(
				    "Nucleus sampling p", min_value=0.1, max_value=1.0, value=0.9_5, step=0.0_1, format=None, key=None
				)
				_SCREAMING_SNAKE_CASE							:       str						=			st.sidebar.slider(
				    "Temperature", min_value=0.1, max_value=1.0, value=0.7, step=0.0_1, format=None, key=None
				)
				_SCREAMING_SNAKE_CASE							:       List[Any]						=			None

# start main text
_SCREAMING_SNAKE_CASE							:       int						=			[
    "<MY QUESTION>",
    "How do people make chocolate?",
    "Why do we get a fever when we are sick?",
    "How can different animals perceive different colors?",
    "What is natural language processing?",
    "What's the best way to treat a sunburn?",
    "What exactly are vitamins ?",
    "How does nuclear energy provide electricity?",
    "What's the difference between viruses and bacteria?",
    "Why are flutes classified as woodwinds when most of them are made out of metal ?",
    "Why do people like drinking coffee even though it tastes so bad?",
    "What happens when wine ages? How does it make the wine taste better?",
    "If an animal is an herbivore, where does it get the protein that it needs to survive if it only eats grass?",
    "How can we set a date to the beginning or end of an artistic period? Doesn't the change happen gradually?",
    "How does New Zealand have so many large bird predators?",
]
_SCREAMING_SNAKE_CASE							:       List[Any]						=			st.selectbox(
    "What would you like to ask? ---- select <MY QUESTION> to enter a new query",
    questions_list,
    index=1,
)
if question_s == "<MY QUESTION>":
		_SCREAMING_SNAKE_CASE							:       Any						=			st.text_input("Enter your question here:", "")
else:
		_SCREAMING_SNAKE_CASE							:       Optional[Any]						=			question_s

if st.button("Show me!"):
		if action in [0, 1, 3]:
				if index_type == "mixed":
						_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE							:       Optional[Any]						=			make_support(question, source=wiki_source, method="dense", n_results=10)
						_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE							:       List[Any]						=			make_support(question, source=wiki_source, method="sparse", n_results=10)
						_SCREAMING_SNAKE_CASE							:       Optional[int]						=			[]
						for res_d, res_s in zip(support_list_dense, support_list_sparse):
								if tuple(res_d) not in support_list:
										support_list += [tuple(res_d)]
								if tuple(res_s) not in support_list:
										support_list += [tuple(res_s)]
						_SCREAMING_SNAKE_CASE							:       Union[str, Any]						=			support_list[:10]
						_SCREAMING_SNAKE_CASE							:       Dict						=			"<P> " + " <P> ".join([res[-1] for res in support_list])
				else:
						_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE							:       Dict						=			make_support(question, source=wiki_source, method=index_type, n_results=10)
		if action in [0, 3]:
				_SCREAMING_SNAKE_CASE		, _SCREAMING_SNAKE_CASE							:       Optional[int]						=			answer_question(
				    question_doc,
				    sas_model,
				    sas_tokenizer,
				    min_len=min_len,
				    max_len=int(max_len),
				    sampling=(sampled == "sampled"),
				    n_beams=n_beams,
				    top_p=top_p,
				    temp=temp,
				)
				st.markdown("### The model generated answer is:")
				st.write(answer)
		if action in [0, 1, 3] and wiki_source != "none":
				st.markdown("--- \n ### The model is drawing information from the following Wikipedia passages:")
				for i, res in enumerate(support_list):
						_SCREAMING_SNAKE_CASE							:       Dict						=			"https://en.wikipedia.org/wiki/{}".format(res[0].replace(" ", "_"))
						_SCREAMING_SNAKE_CASE							:       Optional[int]						=			res[1].strip()
						if sec_titles == "":
								_SCREAMING_SNAKE_CASE							:       List[str]						=			"[{}]({})".format(res[0], wiki_url)
						else:
								_SCREAMING_SNAKE_CASE							:       Any						=			sec_titles.split(" & ")
								_SCREAMING_SNAKE_CASE							:       Union[str, Any]						=			" & ".join(
								    ["[{}]({}#{})".format(sec.strip(), wiki_url, sec.strip().replace(" ", "_")) for sec in sec_list]
								)
						st.markdown(
						    "{0:02d} - **Article**: {1:<18} <br>  _Section_: {2}".format(i + 1, res[0], sections),
						    unsafe_allow_html=True,
						)
						if show_passages:
								st.write(
								    "> <span style=\"font-family:arial; font-size:10pt;\">" + res[-1] + "</span>", unsafe_allow_html=True
								)
		if action in [2, 3]:
				_SCREAMING_SNAKE_CASE							:       Any						=			find_nearest_training(question)
				_SCREAMING_SNAKE_CASE							:       List[str]						=			nn_train_list[0]
				st.markdown(
				    "--- \n ### The most similar question in the ELI5 training set was: \n\n {}".format(train_exple["title"])
				)
				_SCREAMING_SNAKE_CASE							:       int						=			[
				    "{}. {}".format(i + 1, "  \n".join([line.strip() for line in ans.split("\n") if line.strip() != ""]))
				    for i, (ans, sc) in enumerate(zip(train_exple["answers"]["text"], train_exple["answers"]["score"]))
				    if i == 0 or sc > 2
				]
				st.markdown("##### Its answers were: \n\n {}".format("\n".join(answers_st)))


_SCREAMING_SNAKE_CASE							:       Dict						=			"\n---\n\n**Disclaimer**\n\n*The intent of this app is to provide some (hopefully entertaining) insights into the behavior of a current LFQA system.\nEvaluating biases of such a model and ensuring factual generations are still very much open research problems.\nTherefore, until some significant progress is achieved, we caution against using the generated answers for practical purposes.*\n"




st.sidebar.markdown(disclaimer, unsafe_allow_html=True)










'''simple docstring'''





import os

import torch

from ..logging import get_logger
from .constants import FSDP_PYTORCH_VERSION, MODEL_NAME, OPTIMIZER_NAME
from .versions import is_torch_version


if is_torch_version(">=", FSDP_PYTORCH_VERSION):
		import torch.distributed.checkpoint as dist_cp
		from torch.distributed.checkpoint.default_planner import DefaultLoadPlanner, DefaultSavePlanner
		from torch.distributed.checkpoint.optimizer import load_sharded_optimizer_state_dict
		from torch.distributed.fsdp.fully_sharded_data_parallel import FullyShardedDataParallel as FSDP
		from torch.distributed.fsdp.fully_sharded_data_parallel import StateDictType


_SCREAMING_SNAKE_CASE							:       Tuple						=			get_logger(__name__)


def 					UpperCamelCase_(     snake_case							:	Optional[Any]							,    snake_case							:	Optional[Any]							,    snake_case							:	Optional[Any]							,    snake_case							:	int							,    snake_case							:	List[Any]=0					):

							'''simple docstring'''






							os.makedirs(snake_case							,    exist_ok=snake_case					)
							with FSDP.state_dict_type(
							    snake_case							,    fsdp_plugin.state_dict_type							,    fsdp_plugin.state_dict_config							,    fsdp_plugin.optim_state_dict_config					):
														snake_case_      =				model.state_dict()
														if fsdp_plugin.state_dict_type == StateDictType.FULL_STATE_DICT:
																					snake_case_      =				f'{MODEL_NAME}.bin' if model_index == 0 else f'{MODEL_NAME}_{model_index}.bin'
																					snake_case_      =				os.path.join(snake_case							,    snake_case					)
																					if accelerator.process_index == 0:
																												logger.info(f'Saving model to {output_model_file}'					)
																												torch.save(snake_case							,    snake_case					)
																												logger.info(f'Model saved to {output_model_file}'					)
														elif fsdp_plugin.state_dict_type == StateDictType.LOCAL_STATE_DICT:
																					snake_case_      =				(
																					    f'{MODEL_NAME}_rank{accelerator.process_index}.bin'
																					    if model_index == 0
																					    else f'{MODEL_NAME}_{model_index}_rank{accelerator.process_index}.bin'
																					)
																					snake_case_      =				os.path.join(snake_case							,    snake_case					)
																					logger.info(f'Saving model to {output_model_file}'					)
																					torch.save(snake_case							,    snake_case					)
																					logger.info(f'Model saved to {output_model_file}'					)
														elif fsdp_plugin.state_dict_type == StateDictType.SHARDED_STATE_DICT:
																					snake_case_      =				os.path.join(snake_case							,    f'{MODEL_NAME}_{model_index}'					)
																					os.makedirs(snake_case							,    exist_ok=snake_case					)
																					logger.info(f'Saving model to {ckpt_dir}'					)
																					snake_case_      =				{"model": state_dict}

																					dist_cp.save_state_dict(
																					    state_dict=snake_case							,    storage_writer=dist_cp.FileSystemWriter(snake_case					)							,    planner=DefaultSavePlanner()							,    )
																					logger.info(f'Model saved to {ckpt_dir}'					)


def 					UpperCamelCase_(     snake_case							:	Optional[int]							,    snake_case							:	Optional[Any]							,    snake_case							:	int							,    snake_case							:	Union[str, Any]							,    snake_case							:	Any=0					):

							'''simple docstring'''






							accelerator.wait_for_everyone()
							with FSDP.state_dict_type(
							    snake_case							,    fsdp_plugin.state_dict_type							,    fsdp_plugin.state_dict_config							,    fsdp_plugin.optim_state_dict_config					):
														if fsdp_plugin.state_dict_type == StateDictType.FULL_STATE_DICT:
																					if type(snake_case					) != FSDP and accelerator.process_index != 0:
																												if not fsdp_plugin.sync_module_states:
																																			raise ValueError(
																																			    "Set the `sync_module_states` flag to `True` so that model states are synced across processes when "
																																			    "initializing FSDP object"					)
																												return
																					snake_case_      =				f'{MODEL_NAME}.bin' if model_index == 0 else f'{MODEL_NAME}_{model_index}.bin'
																					snake_case_      =				os.path.join(snake_case							,    snake_case					)
																					logger.info(f'Loading model from {input_model_file}'					)
																					snake_case_      =				torch.load(snake_case					)
																					logger.info(f'Model loaded from {input_model_file}'					)
														elif fsdp_plugin.state_dict_type == StateDictType.LOCAL_STATE_DICT:
																					snake_case_      =				(
																					    f'{MODEL_NAME}_rank{accelerator.process_index}.bin'
																					    if model_index == 0
																					    else f'{MODEL_NAME}_{model_index}_rank{accelerator.process_index}.bin'
																					)
																					snake_case_      =				os.path.join(snake_case							,    snake_case					)
																					logger.info(f'Loading model from {input_model_file}'					)
																					snake_case_      =				torch.load(snake_case					)
																					logger.info(f'Model loaded from {input_model_file}'					)
														elif fsdp_plugin.state_dict_type == StateDictType.SHARDED_STATE_DICT:
																					snake_case_      =				(
																					    os.path.join(snake_case							,    f'{MODEL_NAME}_{model_index}'					)
																					    if f'{MODEL_NAME}' not in input_dir
																					    else input_dir
																					)
																					logger.info(f'Loading model from {ckpt_dir}'					)
																					snake_case_      =				{"model": model.state_dict()}
																					dist_cp.load_state_dict(
																					    state_dict=snake_case							,    storage_reader=dist_cp.FileSystemReader(snake_case					)							,    planner=DefaultLoadPlanner()							,    )
																					snake_case_      =				state_dict["model"]
																					logger.info(f'Model loaded from {ckpt_dir}'					)
														model.load_state_dict(snake_case					)


def 					UpperCamelCase_(     snake_case							:	str							,    snake_case							:	List[str]							,    snake_case							:	Any							,    snake_case							:	Tuple							,    snake_case							:	Optional[Any]							,    snake_case							:	Tuple=0					):

							'''simple docstring'''






							os.makedirs(snake_case							,    exist_ok=snake_case					)
							with FSDP.state_dict_type(
							    snake_case							,    fsdp_plugin.state_dict_type							,    fsdp_plugin.state_dict_config							,    fsdp_plugin.optim_state_dict_config					):
														snake_case_      =				FSDP.optim_state_dict(snake_case							,    snake_case					)
														if fsdp_plugin.state_dict_type == StateDictType.FULL_STATE_DICT:
																					if accelerator.process_index == 0:
																												snake_case_      =				(
																												    f'{OPTIMIZER_NAME}.bin' if optimizer_index == 0 else f'{OPTIMIZER_NAME}_{optimizer_index}.bin'
																												)
																												snake_case_      =				os.path.join(snake_case							,    snake_case					)
																												logger.info(f'Saving Optimizer state to {output_optimizer_file}'					)
																												torch.save(snake_case							,    snake_case					)
																												logger.info(f'Optimizer state saved in {output_optimizer_file}'					)
														else:
																					snake_case_      =				os.path.join(snake_case							,    f'{OPTIMIZER_NAME}_{optimizer_index}'					)
																					os.makedirs(snake_case							,    exist_ok=snake_case					)
																					logger.info(f'Saving Optimizer state to {ckpt_dir}'					)
																					dist_cp.save_state_dict(
																					    state_dict={"optimizer": optim_state}							,    storage_writer=dist_cp.FileSystemWriter(snake_case					)							,    planner=DefaultSavePlanner()							,    )
																					logger.info(f'Optimizer state saved in {ckpt_dir}'					)




def 					UpperCamelCase_(     snake_case							:	Optional[Any]							,    snake_case							:	List[str]							,    snake_case							:	Union[str, Any]							,    snake_case							:	int							,    snake_case							:	Optional[int]							,    snake_case							:	Union[str, Any]=0					):

							'''simple docstring'''






							accelerator.wait_for_everyone()
							with FSDP.state_dict_type(
							    snake_case							,    fsdp_plugin.state_dict_type							,    fsdp_plugin.state_dict_config							,    fsdp_plugin.optim_state_dict_config					):
														if fsdp_plugin.state_dict_type == StateDictType.FULL_STATE_DICT:
																					snake_case_      =				None
																					# below check should work but currently it isn't working (mostly opytorch issue),
																					# in the meantime disabling it at the cost of excess memory usage
																					# if accelerator.process_index == 0 or not fsdp_plugin.optim_state_dict_config.rank0_only:
																					snake_case_      =				(
																					    f'{OPTIMIZER_NAME}.bin' if optimizer_index == 0 else f'{OPTIMIZER_NAME}_{optimizer_index}.bin'
																					)
																					snake_case_      =				os.path.join(snake_case							,    snake_case					)
																					logger.info(f'Loading Optimizer state from {input_optimizer_file}'					)
																					snake_case_      =				torch.load(snake_case					)
																					logger.info(f'Optimizer state loaded from {input_optimizer_file}'					)
														else:
																					snake_case_      =				(
																					    os.path.join(snake_case							,    f'{OPTIMIZER_NAME}_{optimizer_index}'					)
																					    if f'{OPTIMIZER_NAME}' not in input_dir
																					    else input_dir
																					)
																					logger.info(f'Loading Optimizer from {ckpt_dir}'					)
																					snake_case_      =				load_sharded_optimizer_state_dict(
																					    model_state_dict=model.state_dict()							,    optimizer_key="optimizer"							,    storage_reader=dist_cp.FileSystemReader(snake_case					)							,    )
																					snake_case_      =				optim_state["optimizer"]
																					logger.info(f'Optimizer loaded from {ckpt_dir}'					)
														snake_case_      =				FSDP.optim_state_dict_to_load(snake_case							,    snake_case							,    snake_case					)
														optimizer.load_state_dict(snake_case					)




