dreambooth显存占用

[lcc157]

dreambooth显存占用是不是挺大的，训练一个512大小得图，4张p40 24G显卡都不够，这个正常吗

                           batch_size: 1
                           resolution: (256, 256)
                           enable_bucket: True
                           network_multiplier: 1.0
                           min_bucket_reso: 256
                           max_bucket_reso: 512
                           bucket_reso_steps: 64
                           bucket_no_upscale: False

                           [Subset 0 of Dataset 0]
                             image_dir: "lora-scripts/imgs/7_zkz/7_zkz"
                             image_count: 1
                             num_repeats: 7
                             shuffle_caption: True
                             keep_tokens: 0
                             keep_tokens_separator:
                             secondary_separator: None
                             enable_wildcard: False
                             caption_dropout_rate: 0.0
                             caption_dropout_every_n_epoches: 0
                             caption_tag_dropout_rate: 0.0
                             caption_prefix: None
                             caption_suffix: None
                             color_aug: False
                             flip_aug: False
                             face_crop_aug_range: None
                             random_crop: False
                             token_warmup_min: 1,
                             token_warmup_step: 0,
                             is_reg: False
                             class_tokens: zkz
                             caption_extension: .txt