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import argparse
import torch
import os
import json
from tqdm import tqdm
import shortuuid
from minigemini.constants import IMAGE_TOKEN_INDEX, DEFAULT_IMAGE_TOKEN, DEFAULT_IM_START_TOKEN, DEFAULT_IM_END_TOKEN
from minigemini.conversation import conv_templates, SeparatorStyle
from minigemini.model.builder import load_pretrained_model
from minigemini.utils import disable_torch_init
from minigemini.mm_utils import tokenizer_image_token, process_images, get_model_name_from_path
from PIL import Image
import math
def split_list(lst, n):
"""Split a list into n (roughly) equal-sized chunks"""
chunk_size = math.ceil(len(lst) / n) # integer division
return [lst[i:i+chunk_size] for i in range(0, len(lst), chunk_size)]
def get_chunk(lst, n, k):
chunks = split_list(lst, n)
return chunks[k]
def eval_model(args):
# Model
disable_torch_init()
model_path = os.path.expanduser(args.model_path)
model_name = get_model_name_from_path(model_path)
tokenizer, model, image_processor, context_len = load_pretrained_model(model_path, args.model_base, model_name)
questions = json.load(open(os.path.expanduser(args.question_file), "r"))
questions = get_chunk(questions, args.num_chunks, args.chunk_idx)
answers_file = os.path.expanduser(args.answers_file)
os.makedirs(os.path.dirname(answers_file), exist_ok=True)
ans_file = open(answers_file, "w")
for i, line in enumerate(tqdm(questions)):
idx = line["id"]
question = line['conversations'][0]
qs = question['value'].replace('<image>', '').strip()
cur_prompt = qs
if 'image' in line:
image_file = line["image"]
image = Image.open(os.path.join(args.image_folder, image_file))
if hasattr(model.config, 'image_size_aux'):
if not hasattr(image_processor, 'image_size_raw'):
image_processor.image_size_raw = image_processor.crop_size.copy()
image_processor.crop_size['height'] = model.config.image_size_aux
image_processor.crop_size['width'] = model.config.image_size_aux
image_processor.size['shortest_edge'] = model.config.image_size_aux
image_tensor = process_images([image], image_processor, model.config)[0]
image_grid = getattr(model.config, 'image_grid', 1)
if hasattr(model.config, 'image_size_aux'):
raw_shape = [image_processor.image_size_raw['height'] * image_grid,
image_processor.image_size_raw['width'] * image_grid]
image_tensor_aux = image_tensor
image_tensor = torch.nn.functional.interpolate(image_tensor[None],
size=raw_shape,
mode='bilinear',
align_corners=False)[0]
else:
image_tensor_aux = []
if image_grid >= 2:
raw_image = image_tensor.reshape(3,
image_grid,
image_processor.image_size_raw['height'],
image_grid,
image_processor.image_size_raw['width'])
raw_image = raw_image.permute(1, 3, 0, 2, 4)
raw_image = raw_image.reshape(-1, 3,
image_processor.image_size_raw['height'],
image_processor.image_size_raw['width'])
if getattr(model.config, 'image_global', False):
global_image = image_tensor
if len(global_image.shape) == 3:
global_image = global_image[None]
global_image = torch.nn.functional.interpolate(global_image,
size=[image_processor.image_size_raw['height'],
image_processor.image_size_raw['width']],
mode='bilinear',
align_corners=False)
# [image_crops, image_global]
raw_image = torch.cat([raw_image, global_image], dim=0)
image_tensor = raw_image.contiguous()
images = image_tensor[None].to(dtype=model.dtype, device='cuda', non_blocking=True)
images_aux = image_tensor_aux[None].to(dtype=model.dtype, device='cuda', non_blocking=True) if len(image_tensor_aux)>0 else None
if getattr(model.config, 'mm_use_im_start_end', False):
qs = DEFAULT_IM_START_TOKEN + DEFAULT_IMAGE_TOKEN + DEFAULT_IM_END_TOKEN + '\n' + qs
else:
qs = DEFAULT_IMAGE_TOKEN + '\n' + qs
cur_prompt = '<image>' + '\n' + cur_prompt
else:
images = None
images_aux = None
if args.single_pred_prompt:
qs = qs + '\n' + "Answer with the option's letter from the given choices directly."
cur_prompt = cur_prompt + '\n' + "Answer with the option's letter from the given choices directly."
conv = conv_templates[args.conv_mode].copy()
conv.append_message(conv.roles[0], qs)
conv.append_message(conv.roles[1], None)
prompt = conv.get_prompt()
input_ids = tokenizer_image_token(prompt, tokenizer, IMAGE_TOKEN_INDEX, return_tensors='pt').unsqueeze(0).cuda()
if hasattr(model, "update_prompt"):
model.update_prompt([[cur_prompt]])
with torch.inference_mode():
output_ids = model.generate(
input_ids,
images=images,
images_aux=images_aux,
do_sample=True if args.temperature > 0 else False,
temperature=args.temperature,
max_new_tokens=1024,
bos_token_id=tokenizer.bos_token_id, # Begin of sequence token
eos_token_id=tokenizer.eos_token_id, # End of sequence token
pad_token_id=tokenizer.pad_token_id, # Pad token
use_cache=True,
)
outputs = tokenizer.batch_decode(output_ids, skip_special_tokens=True)[0].strip()
ans_id = shortuuid.uuid()
ans_file.write(json.dumps({"question_id": idx,
"prompt": cur_prompt,
"text": outputs,
"answer_id": ans_id,
"model_id": model_name,
"metadata": {}}) + "\n")
ans_file.flush()
ans_file.close()
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("--model-path", type=str, default="facebook/opt-350m")
parser.add_argument("--model-base", type=str, default=None)
parser.add_argument("--image-folder", type=str, default="")
parser.add_argument("--question-file", type=str, default="tables/question.json")
parser.add_argument("--answers-file", type=str, default="answer.jsonl")
parser.add_argument("--conv-mode", type=str, default="llava_v0")
parser.add_argument("--num-chunks", type=int, default=1)
parser.add_argument("--chunk-idx", type=int, default=0)
parser.add_argument("--temperature", type=float, default=0.2)
parser.add_argument("--answer-prompter", action="store_true")
parser.add_argument("--single-pred-prompt", action="store_true")
args = parser.parse_args()
eval_model(args) |