
import argparse
import json
import os

import evaluate
import torch
from datasets import load_dataset
from torch.optim import AdamW
from torch.utils.data import DataLoader
from transformers import AutoModelForSequenceClassification, AutoTokenizer, get_linear_schedule_with_warmup, set_seed

from accelerate import Accelerator, DistributedType
from accelerate.utils.deepspeed import DummyOptim, DummyScheduler


_UpperCAmelCase :			List[str]              =	16
_UpperCAmelCase :			Any              =	32


def 				A	( lowercase   ,	lowercase = 16   ,	lowercase = "bert-base-cased"			)       ->  Any:
		'''simple docstring'''

		UpperCamelCase          =					AutoTokenizer.from_pretrained(SCREAMING_SNAKE_CASE__			)
		UpperCamelCase          =					load_dataset('glue'   ,	'mrpc'			)

		def tokenize_function(lowercase			):
				# max_length=None => use the model max length (it's actually the default)
				UpperCamelCase          =					tokenizer(examples['sentence1']   ,	examples['sentence2']   ,	truncation=SCREAMING_SNAKE_CASE__   ,	max_length=SCREAMING_SNAKE_CASE__			)
				return outputs

		# Apply the method we just defined to all the examples in all the splits of the dataset
		UpperCamelCase          =					datasets.map(
		    SCREAMING_SNAKE_CASE__   ,	batched=SCREAMING_SNAKE_CASE__   ,	remove_columns=['idx', 'sentence1', 'sentence2']   ,	load_from_cache_file=SCREAMING_SNAKE_CASE__			)

		# We also rename the 'label' column to 'labels' which is the expected name for labels by the models of the
		# transformers library
		UpperCamelCase          =					tokenized_datasets.rename_column('label'   ,	'labels'			)

		def collate_fn(lowercase			):
				# On TPU it's best to pad everything to the same length or training will be very slow.
				if accelerator.distributed_type == DistributedType.TPU:
						return tokenizer.pad(SCREAMING_SNAKE_CASE__   ,	padding='max_length'   ,	max_length=128   ,	return_tensors='pt'			)
				return tokenizer.pad(SCREAMING_SNAKE_CASE__   ,	padding='longest'   ,	return_tensors='pt'			)

		# Instantiate dataloaders.
		UpperCamelCase          =					DataLoader(
		    tokenized_datasets['train']   ,	shuffle=SCREAMING_SNAKE_CASE__   ,	collate_fn=SCREAMING_SNAKE_CASE__   ,	batch_size=SCREAMING_SNAKE_CASE__			)
		UpperCamelCase          =					DataLoader(
		    tokenized_datasets['validation']   ,	shuffle=SCREAMING_SNAKE_CASE__   ,	collate_fn=SCREAMING_SNAKE_CASE__   ,	batch_size=SCREAMING_SNAKE_CASE__			)

		return train_dataloader, eval_dataloader


def 				A	( lowercase   ,	lowercase			)       ->  Optional[int]:
		'''simple docstring'''

		UpperCamelCase          =					Accelerator()

		# Sample hyper-parameters for learning rate, batch size, seed and a few other HPs
		UpperCamelCase          =					config['''lr''']
		UpperCamelCase          =					int(config['num_epochs']			)
		UpperCamelCase          =					int(config['seed']			)
		UpperCamelCase          =					int(config['batch_size']			)
		UpperCamelCase          =					args.model_name_or_path

		set_seed(SCREAMING_SNAKE_CASE__			)
		UpperCamelCase          =					get_dataloaders(SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__			)

		# Instantiate the model (we build the model here so that the seed also control new weights initialization)
		UpperCamelCase          =					AutoModelForSequenceClassification.from_pretrained(SCREAMING_SNAKE_CASE__   ,	return_dict=SCREAMING_SNAKE_CASE__			)

		# Instantiate optimizer
		UpperCamelCase          =					(
		    AdamW
		    if accelerator.state.deepspeed_plugin is None
		    or '''optimizer''' not in accelerator.state.deepspeed_plugin.deepspeed_config
		    else DummyOptim
		)
		UpperCamelCase          =					optimizer_cls(params=model.parameters()   ,	lr=SCREAMING_SNAKE_CASE__			)

		if accelerator.state.deepspeed_plugin is not None:
				UpperCamelCase          =					accelerator.state.deepspeed_plugin.deepspeed_config[
				    '''gradient_accumulation_steps'''
				]
		else:
				UpperCamelCase          =					1
		UpperCamelCase          =					(len(SCREAMING_SNAKE_CASE__			) * num_epochs) // gradient_accumulation_steps

		# Instantiate scheduler
		if (
		    accelerator.state.deepspeed_plugin is None
		    or "scheduler" not in accelerator.state.deepspeed_plugin.deepspeed_config
		):
				UpperCamelCase          =					get_linear_schedule_with_warmup(
				    optimizer=SCREAMING_SNAKE_CASE__   ,	num_warmup_steps=0   ,	num_training_steps=SCREAMING_SNAKE_CASE__   ,	)
		else:
				UpperCamelCase          =					DummyScheduler(SCREAMING_SNAKE_CASE__   ,	total_num_steps=SCREAMING_SNAKE_CASE__   ,	warmup_num_steps=0			)

		# Prepare everything
		# There is no specific order to remember, we just need to unpack the objects in the same order we gave them to the
		# prepare method.
		UpperCamelCase          =					accelerator.prepare(
		    SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__			)

		# We need to keep track of how many total steps we have iterated over
		UpperCamelCase          =					0
		# We also need to keep track of the stating epoch so files are named properly
		UpperCamelCase          =					0

		# Now we train the model
		UpperCamelCase          =					evaluate.load('glue'   ,	'mrpc'			)
		UpperCamelCase          =					0
		UpperCamelCase          =					{}
		for epoch in range(SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__			):
				model.train()
				for step, batch in enumerate(SCREAMING_SNAKE_CASE__			):
						UpperCamelCase          =					model(**SCREAMING_SNAKE_CASE__			)
						UpperCamelCase          =					outputs.loss
						UpperCamelCase          =					loss / gradient_accumulation_steps
						accelerator.backward(SCREAMING_SNAKE_CASE__			)
						if step % gradient_accumulation_steps == 0:
								optimizer.step()
								lr_scheduler.step()
								optimizer.zero_grad()

						overall_step += 1

				model.eval()
				UpperCamelCase          =					0
				for step, batch in enumerate(SCREAMING_SNAKE_CASE__			):
						# We could avoid this line since we set the accelerator with `device_placement=True`.
						batch.to(accelerator.device			)
						with torch.no_grad():
								UpperCamelCase          =					model(**SCREAMING_SNAKE_CASE__			)
						UpperCamelCase          =					outputs.logits.argmax(dim=-1			)
						# It is slightly faster to call this once, than multiple times
						UpperCamelCase          =					accelerator.gather(
						    (predictions, batch['labels'])			)  # If we are in a multiprocess environment, the last batch has duplicates
						if accelerator.use_distributed:
								if step == len(SCREAMING_SNAKE_CASE__			) - 1:
										UpperCamelCase          =					predictions[: len(eval_dataloader.dataset			) - samples_seen]
										UpperCamelCase          =					references[: len(eval_dataloader.dataset			) - samples_seen]
								else:
										samples_seen += references.shape[0]
						metric.add_batch(
						    predictions=SCREAMING_SNAKE_CASE__   ,	references=SCREAMING_SNAKE_CASE__   ,	)

				UpperCamelCase          =					metric.compute()
				# Use accelerator.print to print only on the main process.
				accelerator.print(f'''epoch {epoch}:'''   ,	SCREAMING_SNAKE_CASE__			)
				UpperCamelCase          =					eval_metric['''accuracy''']

				if best_performance < eval_metric["accuracy"]:
						UpperCamelCase          =					eval_metric['''accuracy''']

		if args.performance_lower_bound is not None:
				assert (
				    args.performance_lower_bound <= best_performance
				), f'''Best performance metric {best_performance} is lower than the lower bound {args.performance_lower_bound}'''

		accelerator.wait_for_everyone()
		if accelerator.is_main_process:
				with open(os.path.join(args.output_dir   ,	'all_results.json'			)   ,	'w'			) as f:
						json.dump(SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__			)


def 				A	( )       ->  Optional[int]:
		'''simple docstring'''

		UpperCamelCase          =					argparse.ArgumentParser(description='Simple example of training script tracking peak GPU memory usage.'			)
		parser.add_argument(
		    '--model_name_or_path'   ,	type=SCREAMING_SNAKE_CASE__   ,	default='bert-base-cased'   ,	help='Path to pretrained model or model identifier from huggingface.co/models.'   ,	required=SCREAMING_SNAKE_CASE__   ,	)
		parser.add_argument(
		    '--output_dir'   ,	type=SCREAMING_SNAKE_CASE__   ,	default='.'   ,	help='Optional save directory where all checkpoint folders will be stored. Default is the current working directory.'   ,	)
		parser.add_argument(
		    '--performance_lower_bound'   ,	type=SCREAMING_SNAKE_CASE__   ,	default=SCREAMING_SNAKE_CASE__   ,	help='Optional lower bound for the performance metric. If set, the training will throw error when the performance metric drops below this value.'   ,	)
		parser.add_argument(
		    '--num_epochs'   ,	type=SCREAMING_SNAKE_CASE__   ,	default=3   ,	help='Number of train epochs.'   ,	)
		UpperCamelCase          =					parser.parse_args()
		UpperCamelCase          =					{'''lr''': 2e-5, '''num_epochs''': args.num_epochs, '''seed''': 42, '''batch_size''': 16}
		training_function(SCREAMING_SNAKE_CASE__   ,	SCREAMING_SNAKE_CASE__			)


if __name__ == "__main__":
				main()


import argparse

import requests
import torch

# pip3 install salesforce-lavis
# I'm actually installing a slightly modified version: pip3 install git+https://github.com/nielsrogge/LAVIS.git@fix_lavis
from lavis.models import load_model_and_preprocess
from PIL import Image

from transformers import (
    AutoTokenizer,
    BlipaConfig,
    BlipaForConditionalGeneration,
    BlipaProcessor,
    BlipaVisionConfig,
    BlipImageProcessor,
    OPTConfig,
    TaConfig,
)
from transformers.utils.constants import OPENAI_CLIP_MEAN, OPENAI_CLIP_STD


def 				A	( )       ->  int:
		'''simple docstring'''

		UpperCamelCase          =					'https://storage.googleapis.com/sfr-vision-language-research/LAVIS/assets/merlion.png'
		UpperCamelCase          =					Image.open(requests.get(lowercase   ,	stream=lowercase			).raw			).convert('RGB'			)

		return image


def 				A	( lowercase			)       ->  Any:
		'''simple docstring'''

		UpperCamelCase          =					[]
		# fmt: off

		# vision encoder
		rename_keys.append(('visual_encoder.cls_token', 'vision_model.embeddings.class_embedding')			)
		rename_keys.append(('visual_encoder.pos_embed', 'vision_model.embeddings.position_embedding')			)
		rename_keys.append(('visual_encoder.patch_embed.proj.weight', 'vision_model.embeddings.patch_embedding.weight')			)
		rename_keys.append(('visual_encoder.patch_embed.proj.bias', 'vision_model.embeddings.patch_embedding.bias')			)
		rename_keys.append(('ln_vision.weight', 'vision_model.post_layernorm.weight')			)
		rename_keys.append(('ln_vision.bias', 'vision_model.post_layernorm.bias')			)

		for i in range(config.vision_config.num_hidden_layers			):
				rename_keys.append((f'''visual_encoder.blocks.{i}.norm1.weight''', f'''vision_model.encoder.layers.{i}.layer_norm1.weight''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.norm1.bias''', f'''vision_model.encoder.layers.{i}.layer_norm1.bias''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.norm2.weight''', f'''vision_model.encoder.layers.{i}.layer_norm2.weight''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.norm2.bias''', f'''vision_model.encoder.layers.{i}.layer_norm2.bias''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.attn.qkv.weight''', f'''vision_model.encoder.layers.{i}.self_attn.qkv.weight''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.attn.proj.weight''', f'''vision_model.encoder.layers.{i}.self_attn.projection.weight''',)			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.attn.proj.bias''', f'''vision_model.encoder.layers.{i}.self_attn.projection.bias''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.mlp.fc1.weight''', f'''vision_model.encoder.layers.{i}.mlp.fc1.weight''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.mlp.fc1.bias''', f'''vision_model.encoder.layers.{i}.mlp.fc1.bias''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.mlp.fc2.weight''', f'''vision_model.encoder.layers.{i}.mlp.fc2.weight''')			)
				rename_keys.append((f'''visual_encoder.blocks.{i}.mlp.fc2.bias''', f'''vision_model.encoder.layers.{i}.mlp.fc2.bias''')			)

		# QFormer
		rename_keys.append(('Qformer.bert.embeddings.LayerNorm.weight', 'qformer.layernorm.weight')			)
		rename_keys.append(('Qformer.bert.embeddings.LayerNorm.bias', 'qformer.layernorm.bias')			)

		# fmt: on
		return rename_keys


def 				A	( lowercase   ,	lowercase   ,	lowercase			)       ->  Dict:
		'''simple docstring'''

		UpperCamelCase          =					dct.pop(lowercase			)
		UpperCamelCase          =					val


def 				A	( lowercase   ,	lowercase			)       ->  List[str]:
		'''simple docstring'''

		for i in range(config.vision_config.num_hidden_layers			):
				# read in original q and v biases
				UpperCamelCase          =					state_dict.pop(f'''visual_encoder.blocks.{i}.attn.q_bias'''			)
				UpperCamelCase          =					state_dict.pop(f'''visual_encoder.blocks.{i}.attn.v_bias'''			)

				# next, set bias in the state dict
				UpperCamelCase          =					torch.cat((q_bias, torch.zeros_like(lowercase   ,	requires_grad=lowercase			), v_bias)			)
				UpperCamelCase          =					qkv_bias


def 				A	( lowercase   ,	lowercase			)       ->  int:
		'''simple docstring'''

		UpperCamelCase          =					364 if 'coco' in model_name else 224
		UpperCamelCase          =					BlipaVisionConfig(image_size=lowercase			).to_dict()

		# make sure the models have proper bos_token_id and eos_token_id set (important for generation)
		# seems like flan-T5 models don't have bos_token_id properly set?
		if "opt-2.7b" in model_name:
				UpperCamelCase          =					OPTConfig.from_pretrained('facebook/opt-2.7b'   ,	eos_token_id=lowercase			).to_dict()
		elif "opt-6.7b" in model_name:
				UpperCamelCase          =					OPTConfig.from_pretrained('facebook/opt-6.7b'   ,	eos_token_id=lowercase			).to_dict()
		elif "t5-xl" in model_name:
				UpperCamelCase          =					TaConfig.from_pretrained('google/flan-t5-xl'   ,	dense_act_fn='gelu'   ,	bos_token_id=1			).to_dict()
		elif "t5-xxl" in model_name:
				UpperCamelCase          =					TaConfig.from_pretrained('google/flan-t5-xxl'   ,	dense_act_fn='gelu'   ,	bos_token_id=1			).to_dict()

		UpperCamelCase          =					BlipaConfig(vision_config=lowercase   ,	text_config=lowercase			)

		return config, image_size


@torch.no_grad()
def 				A	( lowercase   ,	lowercase=None   ,	lowercase=False			)       ->  Union[str, Any]:
		'''simple docstring'''

		UpperCamelCase          =					(
		    AutoTokenizer.from_pretrained('facebook/opt-2.7b'			)
		    if 'opt' in model_name
		    else AutoTokenizer.from_pretrained('google/flan-t5-xl'			)
		)
		UpperCamelCase          =					tokenizer('\n'   ,	add_special_tokens=lowercase			).input_ids[0]
		UpperCamelCase     ,  UpperCamelCase          =					get_blipa_config(lowercase   ,	eos_token_id=lowercase			)

		UpperCamelCase          =					BlipaForConditionalGeneration(lowercase			).eval()

		UpperCamelCase          =					{
		    'blip2-opt-2.7b': ('blip2_opt', 'pretrain_opt2.7b'),
		    'blip2-opt-6.7b': ('blip2_opt', 'pretrain_opt6.7b'),
		    'blip2-opt-2.7b-coco': ('blip2_opt', 'caption_coco_opt2.7b'),
		    'blip2-opt-6.7b-coco': ('blip2_opt', 'caption_coco_opt6.7b'),
		    'blip2-flan-t5-xl': ('blip2_t5', 'pretrain_flant5xl'),
		    'blip2-flan-t5-xl-coco': ('blip2_t5', 'caption_coco_flant5xl'),
		    'blip2-flan-t5-xxl': ('blip2_t5', 'pretrain_flant5xxl'),
		}

		UpperCamelCase     ,  UpperCamelCase          =					model_name_to_original[model_name]

		# load original model
		print('Loading original model...'			)
		UpperCamelCase          =					'cuda' if torch.cuda.is_available() else 'cpu'
		UpperCamelCase     ,  UpperCamelCase     ,  UpperCamelCase          =					load_model_and_preprocess(
		    name=lowercase   ,	model_type=lowercase   ,	is_eval=lowercase   ,	device=lowercase			)
		original_model.eval()
		print('Done!'			)

		# update state dict keys
		UpperCamelCase          =					original_model.state_dict()
		UpperCamelCase          =					create_rename_keys(lowercase			)
		for src, dest in rename_keys:
				rename_key(lowercase   ,	lowercase   ,	lowercase			)

		# some keys can be renamed efficiently
		for key, val in state_dict.copy().items():
				UpperCamelCase          =					state_dict.pop(lowercase			)
				if key.startswith('Qformer.bert'			):
						UpperCamelCase          =					key.replace('Qformer.bert'   ,	'qformer'			)
				if "attention.self" in key:
						UpperCamelCase          =					key.replace('self'   ,	'attention'			)
				if "opt_proj" in key:
						UpperCamelCase          =					key.replace('opt_proj'   ,	'language_projection'			)
				if "t5_proj" in key:
						UpperCamelCase          =					key.replace('t5_proj'   ,	'language_projection'			)
				if key.startswith('opt'			):
						UpperCamelCase          =					key.replace('opt'   ,	'language'			)
				if key.startswith('t5'			):
						UpperCamelCase          =					key.replace('t5'   ,	'language'			)
				UpperCamelCase          =					val

		# read in qv biases
		read_in_q_v_bias(lowercase   ,	lowercase			)

		UpperCamelCase     ,  UpperCamelCase          =					hf_model.load_state_dict(lowercase   ,	strict=lowercase			)
		assert len(lowercase			) == 0
		assert unexpected_keys == ["qformer.embeddings.position_ids"]

		UpperCamelCase          =					load_demo_image()
		UpperCamelCase          =					vis_processors['eval'](lowercase			).unsqueeze(0			).to(lowercase			)
		UpperCamelCase          =					tokenizer(['\n']   ,	return_tensors='pt'			).input_ids.to(lowercase			)

		# create processor
		UpperCamelCase          =					BlipImageProcessor(
		    size={'height': image_size, 'width': image_size}   ,	image_mean=lowercase   ,	image_std=lowercase			)
		UpperCamelCase          =					BlipaProcessor(image_processor=lowercase   ,	tokenizer=lowercase			)
		UpperCamelCase          =					processor(images=lowercase   ,	return_tensors='pt'			).pixel_values.to(lowercase			)

		# make sure processor creates exact same pixel values
		assert torch.allclose(lowercase   ,	lowercase			)

		original_model.to(lowercase			)
		hf_model.to(lowercase			)
		with torch.no_grad():
				if "opt" in model_name:
						UpperCamelCase          =					original_model({'image': original_pixel_values, 'text_input': ['']}			).logits
						UpperCamelCase          =					hf_model(lowercase   ,	lowercase			).logits
				else:
						UpperCamelCase          =					original_model(
						    {'image': original_pixel_values, 'text_input': ['\n'], 'text_output': ['\n']}			).logits
						UpperCamelCase          =					input_ids.masked_fill(input_ids == tokenizer.pad_token_id   ,	-100			)
						UpperCamelCase          =					hf_model(lowercase   ,	lowercase   ,	labels=lowercase			).logits

		assert original_logits.shape == logits.shape
		print('First values of original logits:'   ,	original_logits[0, :3, :3]			)
		print('First values of HF logits:'   ,	logits[0, :3, :3]			)

		# assert values
		if model_name == "blip2-flan-t5-xl":
				UpperCamelCase          =					torch.tensor(
				    [[-4_1.5_8_5_0, -4.4_4_4_0, -8.9_9_2_2], [-4_7.4_3_2_2, -5.9_1_4_3, -1.7_3_4_0]]   ,	device=lowercase			)
				assert torch.allclose(logits[0, :3, :3]   ,	lowercase   ,	atol=1e-4			)
		elif model_name == "blip2-flan-t5-xl-coco":
				UpperCamelCase          =					torch.tensor(
				    [[-5_7.0_1_0_9, -9.8_9_6_7, -1_2.6_2_8_0], [-6_8.6_5_7_8, -1_2.7_1_9_1, -1_0.5_0_6_5]]   ,	device=lowercase			)
		else:
				# cast to same type
				UpperCamelCase          =					logits.dtype
				assert torch.allclose(original_logits.to(lowercase			)   ,	lowercase   ,	atol=1e-2			)
		print('Looks ok!'			)

		print('Generating a caption...'			)
		UpperCamelCase          =					''
		UpperCamelCase          =					tokenizer(lowercase   ,	return_tensors='pt'			).input_ids.to(lowercase			)

		UpperCamelCase          =					original_model.generate({'image': original_pixel_values}			)
		UpperCamelCase          =					hf_model.generate(
		    lowercase   ,	lowercase   ,	do_sample=lowercase   ,	num_beams=5   ,	max_length=30   ,	min_length=1   ,	top_p=0.9   ,	repetition_penalty=1.0   ,	length_penalty=1.0   ,	temperature=1   ,	)
		print('Original generation:'   ,	lowercase			)
		UpperCamelCase          =					input_ids.shape[1]
		UpperCamelCase          =					processor.batch_decode(outputs[:, prompt_length:]   ,	skip_special_tokens=lowercase			)
		UpperCamelCase          =					[text.strip() for text in output_text]
		print('HF generation:'   ,	lowercase			)

		if pytorch_dump_folder_path is not None:
				processor.save_pretrained(lowercase			)
				hf_model.save_pretrained(lowercase			)

		if push_to_hub:
				processor.push_to_hub(f'''nielsr/{model_name}'''			)
				hf_model.push_to_hub(f'''nielsr/{model_name}'''			)


if __name__ == "__main__":
					_UpperCAmelCase :			Optional[int]              =	argparse.ArgumentParser()
					_UpperCAmelCase :			str              =	[
					    "blip2-opt-2.7b",
					    "blip2-opt-6.7b",
					    "blip2-opt-2.7b-coco",
					    "blip2-opt-6.7b-coco",
					    "blip2-flan-t5-xl",
					    "blip2-flan-t5-xl-coco",
					    "blip2-flan-t5-xxl",
					]
					parser.add_argument(
					    "--model_name",
					    default="blip2-opt-2.7b",
					    choices=choices,
					    type=str,
					    help="Path to hf config.json of model to convert",
					)
					parser.add_argument("--pytorch_dump_folder_path", default=None, type=str, help="Path to the output PyTorch model.")
					parser.add_argument(
					    "--push_to_hub",
					    action="store_true",
					    help="Whether to push the model and processor to the hub after converting",
					)

					_UpperCAmelCase :			List[str]              =	parser.parse_args()

					convert_blipa_checkpoint(args.model_name, args.pytorch_dump_folder_path, args.push_to_hub)
