a
    dFB                     @   s   d Z ddlZddlZddlmZ ddlmZ ddlm	Z	m
Z
mZ e
 rNddlZeeZdd Ze	 rze rzdd	lmZ ndd
lmZ G dd deZG dd deZdadd Zdd Zdd Zdd Zdd ZdddZdd ZdS )z
Integration with Deepspeed
    N)partialmethod   )dep_version_check)is_accelerate_availableis_torch_availableloggingc                   C   s   t jdd uS )N	deepspeed)	importlibutil	find_spec r   r   _/var/www/html/stable-diffusion-webui/venv/lib/python3.9/site-packages/transformers/deepspeed.pyis_deepspeed_available    s    r   )HfDeepSpeedConfig)objectc                       s    e Zd ZdZ fddZ  ZS )r   aJ  
    This object contains a DeepSpeed configuration dictionary and can be quickly queried for things like zero stage.

    A `weakref` of this object is stored in the module's globals to be able to access the config from areas where
    things like the Trainer object is not available (e.g. `from_pretrained` and `_get_resized_embeddings`). Therefore
    it's important that this object remains alive while the program is still running.

    [`Trainer`] uses the `HfTrainerDeepSpeedConfig` subclass instead. That subclass has logic to sync the configuration
    with values of [`TrainingArguments`] by replacing special placeholder values: `"auto"`. Without this special logic
    the DeepSpeed configuration is not modified in any way.

    Args:
        config_file_or_dict (`Union[str, Dict]`): path to DeepSpeed config file or dict.

    c                    s(   t |  td td t | d S )NZ
accelerater   )set_hf_deepspeed_configr   super__init__selfZconfig_file_or_dict	__class__r   r   r   =   s    zHfDeepSpeedConfig.__init__)__name__
__module____qualname____doc__r   __classcell__r   r   r   r   r   ,   s   r   c                       sV   e Zd ZdZ fddZdd Zdd Zdd
dZeeddZ	dd Z
dd Z  ZS )HfTrainerDeepSpeedConfigz
    The `HfTrainerDeepSpeedConfig` object is meant to be created during `TrainingArguments` object creation and has the
    same lifespan as the latter.
    c                    s   t  | d | _g | _d S N)r   r   _dtype
mismatchesr   r   r   r   r   K   s    z!HfTrainerDeepSpeedConfig.__init__c                 C   s   | j d u rtd| j S )Nz8trainer_config_process() wasn't called yet to tell dtype)r   
ValueErrorr   r   r   r   dtypeP   s    
zHfTrainerDeepSpeedConfig.dtypec                 C   s"   |  |}|d u rdS |dkS d S )NFauto)	get_value)r   ds_key_longvalr   r   r   is_autoU   s    
z HfTrainerDeepSpeedConfig.is_autoNTc              
   C   s~   |  |\}}|du rdS ||dkr4|||< dS |s<dS ||}|durz||krz| jd| d| d| d|  dS )a  
        A utility method that massages the config file and can optionally verify that the values match.

        1. Replace "auto" values with `TrainingArguments` value.

        2. If it wasn't "auto" and `must_match` is true, then check that DS config matches Trainer
        config values and if mismatched add the entry to `self.mismatched` - will assert during
        `trainer_config_finalize` for one or more mismatches.

        Nr$   z- ds =z vs hf )Zfind_config_nodegetr    append)r   r&   Zhf_valZhf_key
must_matchconfigZds_keyZds_valr   r   r   
fill_match\   s    
z#HfTrainerDeepSpeedConfig.fill_matchF)r,   c                 C   s  |j |j |j }| d|jd | d|jd | d|d | d|jd | d|jd	 | d
|j|jgd | d|jd | d|j	d | 
dd | d|jd	 |js|jr|jdkrdnd}nd}|jr| jdi | jd< |j| jd d< | d|js|jo|dkd | d|dkd | d|jd | d|jpX|jd | drttj| _n| drtj| _ntj| _dS ) z
        Adjust the config with `TrainingArguments` values. This stage is run during `TrainingArguments` object
        creation.
        Ztrain_micro_batch_size_per_gpuper_device_train_batch_sizegradient_accumulation_stepstrain_batch_sizeztrain_batch_size (calculated)Zgradient_clippingmax_grad_normzoptimizer.params.lrlearning_ratezoptimizer.params.betaszadam_beta1+adam_beta2zoptimizer.params.epsadam_epsilonzoptimizer.params.weight_decayweight_decayzscheduler.params.warmup_min_lrr   zscheduler.params.warmup_max_lrZapexampN
checkpointZuse_node_local_storagezfp16.enabledz%fp16|fp16_full_eval+fp16_backend(amp)zamp.enabledzfp16+fp16_backend(apex)zamp.opt_levelfp16_opt_levelzbf16.enabledzbf16|bf16_full_eval)Z
world_sizer/   r0   r.   r2   r3   Z
adam_beta1Z
adam_beta2r4   r5   	fill_onlyZfp16Zfp16_full_evalfp16_backendZsave_on_each_noder-   r*   r8   Zbf16Zbf16_full_evalZis_truetorchZbfloat16r   Zis_falsefloat32float16)r   argsr1   r:   r   r   r   trainer_config_processx   s@    

z/HfTrainerDeepSpeedConfig.trainer_config_processc                    s   g d} fdd|D }t |dkrt|jdr<|jj}n*t|jdrVt|jj}ntd| d d	||    r d
d| |   dd|   	d|d  	d|
|d t  jdkrd j}td| ddS )z
        This stage is run after we have the model and know num_training_steps.

        Now we can complete the configuration process.
        )$zero_optimization.reduce_bucket_size-zero_optimization.stage3_prefetch_bucket_size4zero_optimization.stage3_param_persistence_thresholdc                    s   g | ]}  |r|qS r   )r(   ).0xr"   r   r   
<listcomp>       zDHfTrainerDeepSpeedConfig.trainer_config_finalize.<locals>.<listcomp>r   hidden_sizehidden_sizeszThe model's config file has neither `hidden_size` nor `hidden_sizes` entry, therefore it's not possible to automatically fill out the following `auto` entries in the DeepSpeed config file: zb. You can fix that by replacing `auto` values for these keys with an integer value of your choice.r@   rA   g?rB   
   z scheduler.params.total_num_stepsznum_training_steps (calculated)z!scheduler.params.warmup_num_stepsZwarmup_steps
z]Please correct the following DeepSpeed config values that mismatch TrainingArguments values:
zF
The easiest method is to set these DeepSpeed config values to 'auto'.N)lenhasattrr-   rG   maxrH   r!   r9   is_zero3r.   Zget_warmup_stepsr    join)r   r>   modelnum_training_stepsZhidden_size_based_keysZhidden_size_auto_keysrG   r    r   r"   r   trainer_config_finalize   s2    	
z0HfTrainerDeepSpeedConfig.trainer_config_finalize)NT)r   r   r   r   r   r#   r(   r.   r   r9   r?   rR   r   r   r   r   r   r   E   s   
:r   c                 C   s   t | ad S r   )weakrefref_hf_deepspeed_config_weak_ref)Zhf_deepspeed_config_objr   r   r   r      s    r   c                   C   s   d a d S r   )rU   r   r   r   r   unset_hf_deepspeed_config   s    rV   c                   C   s$   t d urt  d urt   S dS d S )NF)rU   rN   r   r   r   r   is_deepspeed_zero3_enabled   s    
rW   c                   C   s"   t d urt  d urt  jS d S d S r   )rU   r-   r   r   r   r   deepspeed_config   s    rX   c           
      C   s   ddl m}m} |j}d}d|v r<|jr0td||d}n"| rNtd | 	 }d|d	< d}	d
|v rt||}	n t
||rtd| j||d}	||	fS )zY
    A convenience wrapper that deals with optimizer and lr scheduler configuration.
    r   )
DummyOptimDummySchedulerN	optimizerz|--adafactor was passed, but also found `optimizer` configured in the DeepSpeed config. Only one optimizer can be configured.)paramszDetected ZeRO Offload and non-DeepSpeed optimizers: This combination should work as long as the custom optimizer has both CPU and GPU implementation (except LAMB)TZzero_allow_untested_optimizerZ	schedulerzFound `optimizer` configured in the DeepSpeed config, but no `scheduler`. Please configure a scheduler in the DeepSpeed config.)rQ   r[   )Zaccelerate.utilsrY   rZ   r-   Z	adafactorr!   Z
is_offloadloggerinfoZcreate_optimizer
isinstanceZcreate_scheduler)
trainerhf_deepspeed_configr>   rQ   model_parametersrY   rZ   r-   r[   lr_schedulerr   r   r   deepspeed_optim_sched  s0    

rd   Fc           
      C   s   ddl m} | j}| j}| jjjj}|||| |	|
  |rv| sTtd|d |d d\}}d}	n0d| _ttdd	 | }	t| ||||	\}}||fS )
aj  
    Init DeepSpeed, after updating the DeepSpeed configuration with any relevant Trainer's args.

    If `resume_from_checkpoint` was passed then an attempt to resume from a previously saved checkpoint will be made.

    Args:
        trainer: Trainer object
        num_training_steps: per single gpu
        resume_from_checkpoint: path to a checkpoint if to resume from after normal DeepSpeedEngine load
        inference: launch in inference mode (no optimizer and no lr scheduler)

    Returns: optimizer, lr_scheduler

    We may use `deepspeed_init` more than once during the life of Trainer, when we do - it's a temp hack based on:
    https://github.com/microsoft/DeepSpeed/issues/1394#issuecomment-937405374 until Deepspeed fixes a bug where it
    can't resume from a checkpoint after it did some stepping https://github.com/microsoft/DeepSpeed/issues/1612

    r   )r]   zMZeRO inference only makes sense with ZeRO Stage 3 - please adjust your configr[   rc   )NNNc                 S   s   | j S r   )Zrequires_grad)pr   r   r   <lambda>h  rF   z deepspeed_init.<locals>.<lambda>)Zdeepspeed.utilsr]   rP   r>   ZacceleratorstateZdeepspeed_pluginZhf_ds_configrR   setLevelZget_process_log_levelrN   r!   Zdel_config_sub_treer[   listfilter
parametersrd   )
r`   rQ   Z	inferenceZ	ds_loggerrP   r>   ra   r[   rc   rb   r   r   r   deepspeed_init<  s&    


rl   c                 C   sv   dd l }t| | d}t|dkrdtd|  | j|ddd\}}|d u rrtd| ntd| d S )Nr   z/global_step*zAttempting to resume from T)Zload_optimizer_statesZload_lr_scheduler_statesz-[deepspeed] failed to resume from checkpoint z!Can't find a valid checkpoint at )globsortedrK   r]   r^   Zload_checkpointr!   )Zdeepspeed_engineZcheckpoint_pathrm   Zdeepspeed_checkpoint_dirsZ	load_path_r   r   r   deepspeed_load_checkpoints  s    
rp   )F)r   Zimportlib.utilr	   rS   	functoolsr   Zdependency_versions_checkr   utilsr   r   r   r;   Z
get_loggerr   r]   r   Zaccelerate.utils.deepspeedr   ZDeepSpeedConfigbuiltinsr   r   rU   r   rV   rW   rX   rd   rl   rp   r   r   r   r   <module>   s.   
 :
7