xformers is not available

[O-O1024]

提示xformers不可用，pip install xformers，然后cuda全家桶安装一遍，最后提示类似内存格式错误的信息。 下面是没安装xformers前提示的错误：

Cannot initialize model with low cpu memory usage because accelerate was not found in the environment. Defaulting to low_cpu_mem_usage=False. It is strongly recommended to install accelerate for faster and less memory-intense model loading. You can do so with:

pip install accelerate

Some weights of the model checkpoint at ./model_ckpts/wav2vec2-base-960h/ were not used when initializing Wav2Vec2Model: ['lm_head.bias', 'lm_head.weight']

• This IS expected if you are initializing Wav2Vec2Model from the checkpoint of a model trained on another task or with another architecture (e.g. initializing a BertForSequenceClassification model from a BertForPreTraining model).
• This IS NOT expected if you are initializing Wav2Vec2Model from the checkpoint of a model that you expect to be exactly identical (initializing a BertForSequenceClassification model from a BertForSequenceClassification model). Some weights of Wav2Vec2Model were not initialized from the model checkpoint at ./model_ckpts/wav2vec2-base-960h/ and are newly initialized: ['wav2vec2.masked_spec_embed'] You should probably TRAIN this model on a down-stream task to be able to use it for predictions and inference. /root/miniconda3/lib/python3.10/site-packages/diffusers/configuration_utils.py:240: FutureWarning: It is deprecated to pass a pretrained model name or path to from_config.If you were trying to load a model, please use <class 'modules.unet_2d_condition.UNet2DConditionModel'>.load_config(...) followed by <class 'modules.unet_2d_condition.UNet2DConditionModel'>.from_config(...) instead. Otherwise, please make sure to pass a configuration dictionary instead. This functionality will be removed in v1.0.0. deprecate("config-passed-as-path", "1.0.0", deprecation_message, standard_warn=False) Loaded weights of Reference Net from ./model_ckpts/v-express/reference_net.pth. Loaded weights of Denoising U-Net from ./model_ckpts/v-express/denoising_unet.pth. Loaded weights of Denoising U-Net Motion Module from ./model_ckpts/v-express/motion_module.pth. Loaded weights of V-Kps Guider from ./model_ckpts/v-express/v_kps_guider.pth. Loaded weights of Audio Projection from ./model_ckpts/v-express/audio_projection.pth. Traceback (most recent call last): File "/root/V-Express/inference.py", line 275, in main() File "/root/V-Express/inference.py", line 171, in main raise ValueError("xformers is not available. Make sure it is installed correctly") ValueError: xformers is not available. Make sure it is installed correctly

[faraday]

see https://github.com/tencent-ailab/V-Express/issues/7

[faraday]

pip install xformers==0.0.20

[O-O1024]

pip install xformers==0.0.20

Thank you for your good solution!