import argparse import torch import os import json import pandas as pd from tqdm import tqdm import shortuuid from llava.constants import ( IMAGE_TOKEN_INDEX, DEFAULT_IMAGE_TOKEN, DEFAULT_IM_START_TOKEN, DEFAULT_IM_END_TOKEN, ) from llava.conversation import conv_templates, SeparatorStyle from llava.model.builder import load_pretrained_model from llava.utils import disable_torch_init from llava.mm_utils import ( tokenizer_image_token, process_images, load_image_from_base64, get_model_name_from_path, ) from PIL import Image import math all_options = ["A", "B", "C", "D"] 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 is_none(value): if value is None: return True if type(value) is float and math.isnan(value): return True if type(value) is str and value.lower() == "nan": return True if type(value) is str and value.lower() == "none": return True return False def get_options(row, options): parsed_options = [] for option in options: option_value = row[option] if is_none(option_value): break parsed_options.append(option_value) return parsed_options 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 = pd.read_table(os.path.expanduser(args.question_file)) 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") if ( "plain" in model_name and "finetune" not in model_name.lower() and "mmtag" not in args.conv_mode ): args.conv_mode = args.conv_mode + "_mmtag" print( f"It seems that this is a plain model, but it is not using a mmtag prompt, auto switching to {args.conv_mode}." ) for index, row in tqdm(questions.iterrows(), total=len(questions)): options = get_options(row, all_options) cur_option_char = all_options[: len(options)] if args.all_rounds: num_rounds = len(options) else: num_rounds = 1 for round_idx in range(num_rounds): idx = row["index"] question = row["question"] hint = row["hint"] image = load_image_from_base64(row["image"]) if not is_none(hint): question = hint + "\n" + question for option_char, option in zip(all_options[: len(options)], options): question = question + "\n" + option_char + ". " + option qs = cur_prompt = question if model.config.mm_use_im_start_end: qs = ( DEFAULT_IM_START_TOKEN + DEFAULT_IMAGE_TOKEN + DEFAULT_IM_END_TOKEN + "\n" + qs ) else: if "multiimg-template" in model_name: qs = "" + DEFAULT_IMAGE_TOKEN + "\n" + qs else: qs = DEFAULT_IMAGE_TOKEN + "\n" + qs if args.single_pred_prompt: if args.lang == "cn": qs = qs + "\n" + "请直接回答选项字母。" else: qs = ( qs + "\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 isinstance(image_processor, list): image_tensor_0 = process_images( [image], image_processor[0], model.config )[0] image_tensor_1 = process_images( [image], image_processor[1], model.config )[0] image_tensor = torch.cat((image_tensor_0, image_tensor_1), dim=0) else: image_tensor = process_images([image], image_processor, model.config)[0] # image_tensor = image_processor.preprocess(image, return_tensors='pt')['pixel_values'][0] stop_str = conv.sep if conv.sep_style != SeparatorStyle.TWO else conv.sep2 with torch.inference_mode(): output_ids = model.generate( input_ids, images=image_tensor.unsqueeze(0).bfloat16().cuda(), do_sample=True if args.temperature > 0 else False, temperature=args.temperature, top_p=args.top_p, num_beams=args.num_beams, # no_repeat_ngram_size=3, max_new_tokens=1024, use_cache=True, ) input_token_len = input_ids.shape[1] n_diff_input_output = ( (input_ids != output_ids[:, :input_token_len]).sum().item() ) if n_diff_input_output > 0: print( f"[Warning] {n_diff_input_output} output_ids are not the same as the input_ids" ) outputs = tokenizer.batch_decode( output_ids[:, input_token_len:], skip_special_tokens=True )[0] outputs = outputs.strip() if outputs.endswith(stop_str): outputs = outputs[: -len(stop_str)] outputs = outputs.strip() ans_id = shortuuid.uuid() ans_file.write( json.dumps( { "question_id": idx, "round_id": round_idx, "prompt": cur_prompt, "text": outputs, "options": options, "option_char": cur_option_char, "answer_id": ans_id, "model_id": model_name, "metadata": {}, } ) + "\n" ) ans_file.flush() # rotate options options = options[1:] + options[:1] cur_option_char = cur_option_char[1:] + cur_option_char[:1] 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.jsonl") parser.add_argument("--answers-file", type=str, default="answer.jsonl") parser.add_argument("--conv-mode", type=str, default="llava_v1") 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("--top_p", type=float, default=None) parser.add_argument("--num_beams", type=int, default=1) parser.add_argument("--all-rounds", action="store_true") parser.add_argument("--single-pred-prompt", action="store_true") parser.add_argument("--lang", type=str, default="en") parser.add_argument("--regen", action="store_true", default=False) args = parser.parse_args() if os.path.exists(args.answers_file) and not args.regen: print("{} already exists, won't regen again.".format(args.answers_file)) else: eval_model(args) eval_model(args)