93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
import argparse
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import os
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import random
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import numpy as np
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import torch
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import warnings
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import torch.nn.functional as F
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from PIL import Image
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from transformers import AutoTokenizer, AutoModelForCausalLM
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from model.model_t2i import MiniMindT2I
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from model.VLMConfig import VLMConfig
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from transformers import logging as hf_logging
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hf_logging.set_verbosity_error()
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warnings.filterwarnings('ignore')
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def count_parameters(model):
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return sum(p.numel() for p in model.parameters() if p.requires_grad)
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def init_model(lm_config, device):
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tokenizer = AutoTokenizer.from_pretrained('./model/minimind_tokenizer')
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moe_path = '_moe' if args.use_moe else ''
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ckp = f'./{args.out_dir}/sft_t2i_{args.dim}{moe_path}.pth'
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model = MiniMindT2I(lm_config)
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state_dict = torch.load(ckp, map_location=device)
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model.load_state_dict({k: v for k, v in state_dict.items() if 'mask' not in k}, strict=False)
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print(f'T2I参数量：{sum(p.numel() for p in model.parameters() if p.requires_grad) / 1e6:.3f} 百万')
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return model.eval().to(device), tokenizer
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def setup_seed(seed):
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random.seed(seed)
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np.random.seed(seed)
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torch.manual_seed(seed)
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torch.cuda.manual_seed(seed)
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torch.cuda.manual_seed_all(seed)
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torch.backends.cudnn.deterministic = True
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torch.backends.cudnn.benchmark = False
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description="Chat with MiniMind")
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parser.add_argument('--lora_name', default='None', type=str)
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parser.add_argument('--out_dir', default='out', type=str)
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parser.add_argument('--temperature', default=0.65, type=float)
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parser.add_argument('--top_p', default=0.85, type=float)
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parser.add_argument('--device', default='cuda' if torch.cuda.is_available() else 'cpu', type=str)
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# MiniMind2-Small (26M)：(dim=512, n_layers=8)
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# MiniMind2 (104M)：(dim=768, n_layers=16)
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parser.add_argument('--dim', default=512, type=int)
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parser.add_argument('--n_layers', default=8, type=int)
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parser.add_argument('--max_seq_len', default=640, type=int)
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parser.add_argument('--use_moe', default=False, type=bool)
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args = parser.parse_args()
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lm_config = VLMConfig(dim=args.dim, n_layers=args.n_layers, max_seq_len=args.max_seq_len, use_moe=args.use_moe)
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model, tokenizer = init_model(lm_config, args.device)
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def chat_with_vlm(prompt):
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messages = [{"role": "user", "content": prompt}]
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new_prompt = tokenizer.apply_chat_template(
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messages,
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tokenize=False,
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add_generation_prompt=True
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)[-args.max_seq_len + 1:]
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with torch.no_grad():
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x = torch.tensor(tokenizer(new_prompt)['input_ids'], device=args.device).unsqueeze(0)
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outputs = model.generate(
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x,
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temperature=args.temperature,
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top_p=args.top_p,
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pad_token_id=tokenizer.pad_token_id,
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)
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image = model.image_tokenizer.decode_code(outputs, (1, 8, 16, 16))
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image = F.interpolate(image, size=[256, 256], mode='bicubic').permute(0, 2, 3, 1)[0]
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image = torch.clamp(127.5 * image + 128.0, 0, 255).to("cpu", dtype=torch.uint8).numpy()
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Image.fromarray(image).save('output.jpg')
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print('🤖️: 图片保存至output.jpg')
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print('\n')
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image_dir = './dataset/eval_images/'
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prompt = f"一个年轻人准备踢足球"
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chat_with_vlm(prompt) |