
    iNY                        d dl mZ d dlmZ d dlZd dlmZ ddlmZ ddlm	Z	m
Z
 ddlmZ dd	lmZmZmZ dd
lmZmZ ddlmZ ddlmZmZmZmZ ddlmZmZ ddlmZm Z  ddl!m"Z"m#Z# ddl$m%Z% ddl&m'Z'm(Z(m)Z) ddl*m+Z+m,Z, ddl-m.Z. ddl/m0Z0  G d dejb                        Z2d Z3 ed      d>d       Z4dejj                  de6dejj                  fdZ7	 d?dejb                  d ejj                  d!ejj                  d"ejj                  d#ejj                  dz  d$e8d%e8d&e%e'   fd'Z9 ee4       G d( d)ejb                               Z: ed*       G d+ d,ejb                               Z; G d- d.ejb                        Z< G d/ d0e      Z=e( G d1 d2e#             Z>e( G d3 d4e>             Z?e( G d5 d6e>e             Z@ G d7 d8ee>      ZA G d9 d:ee>      ZB G d; d<ee>      ZCg d=ZDy)@    )Callable)OptionalN)nn   )ACT2FN)CacheDynamicCache)GenerationMixin)use_kernel_forward_from_hubuse_kernel_func_from_hubuse_kernelized_func)create_causal_mask!create_sliding_window_causal_mask)FlashAttentionKwargs)GenericForQuestionAnswering GenericForSequenceClassificationGenericForTokenClassificationGradientCheckpointingLayer)BaseModelOutputWithPastCausalLMOutputWithPast)ROPE_INIT_FUNCTIONSdynamic_rope_update)ALL_ATTENTION_FUNCTIONSPreTrainedModel)Unpack)TransformersKwargsauto_docstringcan_return_tuple)maybe_autocastmerge_with_config_defaults)capture_outputs   )SmolLM3Configc                        e Zd ZU ej                  ed<   ddef fdZe	 	 	 ddedz  de	d   de
dz  ded	ef   fd
       Z ej                         ed               Z xZS )SmolLM3RotaryEmbeddinginv_freqNconfigc                    t         |           |j                  | _        |j                  | _        || _        | j
                  j                  d   | _        | j                  }| j                  dk7  rt        | j                     } || j
                  |      \  }| _
        | j                  d|d       | j                  d|j                         d       y )N	rope_typedefaultr&   F)
persistentoriginal_inv_freq)super__init__max_position_embeddingsmax_seq_len_cachedoriginal_max_seq_lenr'   rope_parametersr)   compute_default_rope_parametersr   attention_scalingregister_bufferclone)selfr'   devicerope_init_fnr&   	__class__s        }/var/www/vps2.regionflexible.com/Desarrollo/venv/lib/python3.12/site-packages/transformers/models/smollm3/modeling_smollm3.pyr.   zSmolLM3RotaryEmbedding.__init__4   s    "("@"@$*$B$B!44[A!%!E!E>>Y&.t~~>L+7V+L($(ZeD0(..2BuU    r8   ztorch.deviceseq_lenreturnztorch.Tensorc                    | j                   d   }t        | dd      xs | j                  | j                  z  }d}d|t	        j
                  d|dt        j                        j                  |t        j                        |z  z  z  }||fS )	a  
        Computes the inverse frequencies according to the original RoPE implementation
        Args:
            config ([`~transformers.PreTrainedConfig`]):
                The model configuration.
            device (`torch.device`):
                The device to use for initialization of the inverse frequencies.
            seq_len (`int`, *optional*):
                The current sequence length. Unused for this type of RoPE.
        Returns:
            Tuple of (`torch.Tensor`, `float`), containing the inverse frequencies for the RoPE embeddings and the
            post-processing scaling factor applied to the computed cos/sin (unused in this type of RoPE).
        
rope_thetahead_dimNg      ?r      dtype)r8   rD   )	r2   getattrhidden_sizenum_attention_headstorcharangeint64tofloat)r'   r8   r=   basedimattention_factorr&   s          r;   r3   z6SmolLM3RotaryEmbedding.compute_default_rope_parametersD   s    & %%l3fj$/c63E3EIcIc3c U\\!S!5;;?BB&X]XcXcBdgjjk
 )))r<   c                 N   | j                   d d d d f   j                         j                  |j                  d   dd      j	                  |j
                        }|d d d d d f   j                         }t        |j
                  j                  t              r/|j
                  j                  dk7  r|j
                  j                  nd}t        |d      5  |j                         |j                         z  j                  dd      }t        j                  ||fd	      }|j                         | j                  z  }|j                         | j                  z  }	d d d        j	                  |j                   
      	j	                  |j                   
      fS # 1 sw Y   AxY w)Nr   r"   mpscpuF)device_typeenabledrB   rN   rC   )r&   rL   expandshaperK   r8   
isinstancetypestrr   	transposerH   catcosr4   sinrD   )
r7   xposition_idsinv_freq_expandedposition_ids_expandedrT   freqsembr^   r_   s
             r;   forwardzSmolLM3RotaryEmbedding.forwardb   sR    !MM$4-8>>@GGHZHZ[\H]_acdehhijiqiqr ,QaZ 8 > > @'1!((--'E!((--[`J`ahhmmfkUC 	5&,,.1F1L1L1NNYYZ[]^_E))UEN3C'')d444C'')d444C		5 vvAGGv$cff177f&;;;	5 	5s   BFF$N)NNN)__name__
__module____qualname__rH   Tensor__annotations__r#   r.   staticmethodr   inttuplerL   r3   no_gradr   rf   __classcell__r:   s   @r;   r%   r%   1   s    llV} V  '++/"*$*(* t* 
~u$	%	* *: U]]_<  <r<   r%   c                     | dd| j                   d   dz  f   }| d| j                   d   dz  df   }t        j                  | |fd      S )z*Rotates half the hidden dims of the input..NrQ   rB   rV   )rX   rH   r]   )r`   x1x2s      r;   rotate_halfrv   r   sZ    	
3"!''"+"""	#B	
3q ""	#B99rc2YB''r<   rotary_pos_embc                     |j                  |      }|j                  |      }| |z  t        |       |z  z   }||z  t        |      |z  z   }||fS )a  Applies Rotary Position Embedding to the query and key tensors.

    Args:
        q (`torch.Tensor`): The query tensor.
        k (`torch.Tensor`): The key tensor.
        cos (`torch.Tensor`): The cosine part of the rotary embedding.
        sin (`torch.Tensor`): The sine part of the rotary embedding.
        unsqueeze_dim (`int`, *optional*, defaults to 1):
            The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and
            sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note
            that cos[position_ids] and sin[position_ids] have the shape [batch_size, seq_len, head_dim]. Then, if q and
            k have the shape [batch_size, heads, seq_len, head_dim], then setting unsqueeze_dim=1 makes
            cos[position_ids] and sin[position_ids] broadcastable to the shapes of q and k. Similarly, if q and k have
            the shape [batch_size, seq_len, heads, head_dim], then set unsqueeze_dim=2.
    Returns:
        `tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding.
    )	unsqueezerv   )qkr^   r_   unsqueeze_dimq_embedk_embeds          r;   apply_rotary_pos_embr   y   sY    & --
&C
--
&C3w;q>C/0G3w;q>C/0GGr<   hidden_statesn_repr>   c                     | j                   \  }}}}|dk(  r| S | dddddddddf   j                  |||||      } | j                  |||z  ||      S )z
    This is the equivalent of torch.repeat_interleave(x, dim=1, repeats=n_rep). The hidden states go from (batch,
    num_key_value_heads, seqlen, head_dim) to (batch, num_attention_heads, seqlen, head_dim)
    r"   N)rX   rW   reshape)r   r   batchnum_key_value_headsslenrA   s         r;   	repeat_kvr      so    
 2?1D1D.Ehz!!Qa"23::5BUW\^bdlmM  (;e(CT8TTr<   modulequerykeyvalueattention_maskscalingdropoutkwargsc                    t        || j                        }t        || j                        }	t        j                  ||j	                  dd            |z  }
||
|z   }
t
        j                  j                  |
dt        j                        j                  |j                        }
t
        j                  j                  |
|| j                        }
t        j                  |
|	      }|j	                  dd      j                         }||
fS )NrB   r   rQ   )rN   rD   )ptrainingr"   )r   num_key_value_groupsrH   matmulr\   r   
functionalsoftmaxfloat32rK   rD   r   r   
contiguous)r   r   r   r   r   r   r   r   
key_statesvalue_statesattn_weightsattn_outputs               r;   eager_attention_forwardr      s     3 ; ;<JUF$?$?@L<<z';';Aq'ABWLL!#n4==((2U]](SVVW\WbWbcL==((6??([L,,|\:K''1-88:K$$r<   c                        e Zd ZdZdedef fdZ	 ddej                  de	ej                  ej                  f   dej                  dz  d	e
dz  d
ee   de	ej                  ej                  dz  f   fdZ xZS )SmolLM3Attentionz=Multi-headed attention from 'Attention Is All You Need' paperr'   	layer_idxc                    t         |           || _        || _        t	        |d|j
                  |j                  z        | _        |j                  |j                  z  | _	        | j                  dz  | _
        |j                  | _        d| _        t        j                  |j
                  |j                  | j                  z  |j                        | _        t        j                  |j
                  |j                  | j                  z  |j                        | _        t        j                  |j
                  |j                  | j                  z  |j                        | _        t        j                  |j                  | j                  z  |j
                  |j                        | _        |j(                  |   | _        |j,                  r$|j.                  |   dk(  r|j0                  | _        y d | _        y )NrA   g      Tbiassliding_attention)r-   r.   r'   r   rE   rF   rG   rA   r   r   r   attention_dropout	is_causalr   Linearattention_biasq_projk_projv_projo_projno_rope_layersuse_ropeuse_sliding_windowlayer_typessliding_windowr7   r'   r   r:   s      r;   r.   zSmolLM3Attention.__init__   s   "
F4F4F&JdJd4de$*$>$>&B\B\$\!}}d*!'!9!9ii : :T]] JQWQfQf
 ii : :T]] JQWQfQf
 ii : :T]] JQWQfQf
 ii&&68J8JQWQfQf
 --i8 ((V-?-?	-JNa-a !! 	  	r<   Nr   position_embeddingsr   past_key_valuesr   r>   c                 8   |j                   d d }g |d| j                  }| j                  |      j                  |      j	                  dd      }| j                  |      j                  |      j	                  dd      }	| j                  |      j                  |      j	                  dd      }
| j                  r|\  }}t        ||	||      \  }}	| |j                  |	|
| j                        \  }	}
t        j                  | j                  j                  t              } || ||	|
|f| j                   sdn| j"                  | j$                  | j&                  d|\  }} |j(                  g |d j+                         }| j-                  |      }||fS )NrQ   r"   rB           )r   r   r   )rX   rA   r   viewr\   r   r   r   r   updater   r   get_interfacer'   _attn_implementationr   r   r   r   r   r   r   r   )r7   r   r   r   r   r   input_shapehidden_shapequery_statesr   r   r^   r_   attention_interfacer   r   s                   r;   rf   zSmolLM3Attention.forward   s    $))#2.88b8$--8{{=166|DNNqRST[[/44\BLLQPQR
{{=166|DNNqRST==*HC';L*VY[^'_$L*&'6'='=j,X\XfXf'g$J(?(M(MKK,,.E)
 %8
%
  $}}C$2H2HLL..
%
 
%
!\ *k));;;;FFHkk+.L((r<   rg   )rh   ri   rj   __doc__r#   rn   r.   rH   rk   ro   r   r   r   rf   rq   rr   s   @r;   r   r      s    G
} 
 
F )-()||() #5<<#=>() t+	()
 () -.() 
u||U\\D00	1()r<   r   RMSNormc                   h     e Zd Zddeddf fdZdej                  dej                  fdZd Z xZ	S )	SmolLM3RMSNormepsr>   Nc                     t         |           t        j                  t	        j
                  |            | _        || _        y)z=
        SmolLM3RMSNorm is equivalent to T5LayerNorm
        N)r-   r.   r   	ParameterrH   onesweightvariance_epsilon)r7   rF   r   r:   s      r;   r.   zSmolLM3RMSNorm.__init__  s1     	ll5::k#:; #r<   r   c                 "   |j                   }|j                  t        j                        }|j	                  d      j                  dd      }|t        j                  || j                  z         z  }| j                  |j                  |      z  S )NrB   rQ   T)keepdim)	rD   rK   rH   r   powmeanrsqrtr   r   )r7   r   input_dtypevariances       r;   rf   zSmolLM3RMSNorm.forward  sy    #))%((7 $$Q',,R,>%Ht?T?T4T(UU{{]--k:::r<   c                 ^    t        | j                  j                         d| j                   S )Nz, eps=)ro   r   rX   r   )r7   s    r;   
extra_reprzSmolLM3RMSNorm.extra_repr  s*    ))*+6$2G2G1HIIr<   )gư>)
rh   ri   rj   rL   r.   rH   rk   rf   r   rq   rr   s   @r;   r   r     s7    $ $$ $;U\\ ;ell ;Jr<   r   c                   $     e Zd Z fdZd Z xZS )
SmolLM3MLPc                    t         |           || _        |j                  | _        |j                  | _        t        j                  | j                  | j                  |j                        | _        t        j                  | j                  | j                  |j                        | _	        t        j                  | j                  | j                  |j                        | _
        t        |j                     | _        y )Nr   )r-   r.   r'   rF   intermediate_sizer   r   mlp_bias	gate_projup_proj	down_projr   
hidden_actact_fnr7   r'   r:   s     r;   r.   zSmolLM3MLP.__init__  s    !--!'!9!94#3#3T5K5KRXRaRabyy!1!143I3IPVP_P_`4#9#94;K;KRXRaRabV../r<   c                     | j                  | j                  | j                  |            | j                  |      z        }|S rg   )r   r   r   r   )r7   r`   r   s      r;   rf   zSmolLM3MLP.forward%  s6    NN4;;t~~a/@#ADLLQRO#ST	r<   )rh   ri   rj   r.   rf   rq   rr   s   @r;   r   r     s    0r<   r   c                       e Zd Zdedef fdZ	 	 	 	 	 ddej                  dej                  dz  dej                  dz  de	dz  d	e
dz  d
eej                  ej                  f   dz  dee   dej                  fdZ xZS )SmolLM3DecoderLayerr'   r   c                     t         |           |j                  | _        t        ||      | _        t        |      | _        t        |j                  |j                        | _	        t        |j                  |j                        | _
        y )N)r'   r   r   )r-   r.   rF   r   	self_attnr   mlpr   rms_norm_epsinput_layernormpost_attention_layernormr   s      r;   r.   zSmolLM3DecoderLayer.__init__+  sl    !--)9Mf%-f.@.@fFYFYZ(6v7I7IvObOb(c%r<   Nr   r   ra   r   	use_cacher   r   r>   c           
          |}| j                  |      } | j                  d||||||d|\  }}	||z   }|}| j                  |      }| j                  |      }||z   }|S )N)r   r   ra   r   r   r    )r   r   r   r   )
r7   r   r   ra   r   r   r   r   residual_s
             r;   rf   zSmolLM3DecoderLayer.forward5  s     !,,];)4>> 
')%+ 3
 
q !=0 !55mD/ =0r<   )NNNFN)rh   ri   rj   r#   rn   r.   rH   rk   
LongTensorr   boolro   r   r   rf   rq   rr   s   @r;   r   r   *  s    d} d d /304(,!&HL|| t+ &&-	
  $; #5<<#=>E +, 
r<   r   c                   J    e Zd ZU eed<   dZdZdgZdgZdZ	dZ
dZdZdZeedZy)SmolLM3PreTrainedModelr'   modelTr   r   )r   
attentionsN)rh   ri   rj   r#   rl   base_model_prefixsupports_gradient_checkpointing_no_split_modules_skip_keys_device_placement_supports_flash_attn_supports_sdpa_supports_flex_attn_can_compile_fullgraph_supports_attention_backendr   r   _can_record_outputsr   r<   r;   r   r   U  sQ    &*#./#4"5N!"&,&r<   r   c                        e Zd Zdef fdZeee	 	 	 	 	 	 ddej                  dz  dej                  dz  dej                  dz  dedz  dej                  dz  d	edz  d
ee   defd                     Z xZS )SmolLM3Modelr'   c           	      F   t         |   |       |j                  | _        |j                  | _        t        j                  |j                  |j                  | j                        | _        t        j                  t        |j                        D cg c]  }t        ||       c}      | _        t        |j                  |j                        | _        t#        |      | _        d| _        d| j(                  j*                  v | _        | j/                          y c c}w )Nr   r'   Fr   )r-   r.   pad_token_idpadding_idx
vocab_sizer   	EmbeddingrF   embed_tokens
ModuleListrangenum_hidden_layersr   layersr   r   normr%   
rotary_embgradient_checkpointingr'   r   has_sliding_layers	post_initr   s      r;   r.   zSmolLM3Model.__init__j  s     !.. ++LL):):F<N<NPTP`P`ammEJ6KcKcEde	 3e
 #6#5#56;N;NO	0?&+#"59P9P"P 	 fs   DN	input_idsr   ra   r   inputs_embedsr   r   r>   c           
         |d u |d uz  rt        d      || j                  |      }|r|t        | j                        }|V||j	                         nd}t        j                  |j                  d   |j                        |z   }|j                  d      }t        |x}	t              s9| j                  ||||d}
dt        di |
i}	| j                  rt        di |
|	d<   |}| j                  ||      }t!        | j"                  d | j                  j$                         D ].  \  }} ||f|	| j                  j&                  |      ||||d	|}0 | j)                  |      }t+        ||r|
      S d 
      S )Nz:You must specify exactly one of input_ids or inputs_embedsr   r   r"   )r8   )r'   r  r   r   ra   full_attentionr   )r   r   ra   r   r   )last_hidden_stater   r   )
ValueErrorr  r	   r'   get_seq_lengthrH   rI   rX   r8   ry   rY   dictr   r  r   r
  	enumerater  r  r   r	  r   )r7   r  r   ra   r   r  r   r   past_seen_tokenscausal_mask_mappingmask_kwargsr   r   idecoder_layers                  r;   rf   zSmolLM3Model.forward{  s    -t";<YZZ  --i8M0*$++>OCRC^==?de <<(;(;A(>}G[G[\_ooL'11!4L ?-F ++!."0#2 ,K !"4"C{"C# &&;\;k_j;k#$78%"oom\J )$++6U8U8U*V W 		A})24;;3J3J13MN$7) /# M		 		-0&+/8O
 	
>B
 	
r<   )NNNNNN)rh   ri   rj   r#   r.   r    r!   r   rH   r   rk   r   FloatTensorr   r   r   r   rf   rq   rr   s   @r;   r   r   h  s    } "   .2.204(,26!%<
##d*<
 t+<
 &&-	<

 <
 ((4/<
 $;<
 +,<
 
!<
    <
r<   r   c                   B    e Zd ZddiZddiZddgdgfiZ fdZee	 	 	 	 	 	 	 	 dd	e	j                  dz  d
e	j                  dz  de	j                  dz  dedz  de	j                  dz  de	j                  dz  dedz  dee	j                  z  dee   defd              Z xZS )SmolLM3ForCausalLMzlm_head.weightzmodel.embed_tokens.weightlm_headcolwise_gather_outputr   logitsc                     t         |   |       t        |      | _        |j                  | _        t        j                  |j                  |j                  d      | _        | j                          y )NFr   )
r-   r.   r   r   r  r   r   rF   r  r  r   s     r;   r.   zSmolLM3ForCausalLM.__init__  sU     !&)
 ++yy!3!3V5F5FUS 	r<   Nr  r   ra   r   r  labelsr   logits_to_keepr   r>   c	           
      x    | j                   d||||||d|	}
|
j                  }t        |t              rt	        | d      n|}| j                  |dd|ddf         }d}|* | j                  d||| j                  j                  d|	}t        |||
j                  |
j                  |
j                        S )a  
        Example:

        ```python
        >>> from transformers import AutoTokenizer, SmolLM3ForCausalLM

        >>> model = SmolLM3ForCausalLM.from_pretrained("meta-smollm3/SmolLM3-2-7b-hf")
        >>> tokenizer = AutoTokenizer.from_pretrained("meta-smollm3/SmolLM3-2-7b-hf")

        >>> prompt = "Hey, are you conscious? Can you talk to me?"
        >>> inputs = tokenizer(prompt, return_tensors="pt")

        >>> # Generate
        >>> generate_ids = model.generate(inputs.input_ids, max_length=30)
        >>> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0]
        "Hey, are you conscious? Can you talk to me?\nI'm not conscious, but I can talk to you."
        ```)r  r   ra   r   r  r   N)r!  r#  r  )lossr!  r   r   r   r   )r   r  rY   rn   slicer  loss_functionr'   r  r   r   r   r   )r7   r  r   ra   r   r  r#  r   r$  r   outputsr   slice_indicesr!  r&  s                  r;   rf   zSmolLM3ForCausalLM.forward  s    > ,64:: ,
)%+',
 ,
  118B>SV8W~ot4]kmA}a,?@A%4%%pVFt{{OeOepiopD%#33!//))
 	
r<   )NNNNNNNr   )rh   ri   rj   _tied_weights_keys_tp_plan_pp_planr.   r   r   rH   r   rk   r   r  r   rn   r   r   r   rf   rq   rr   s   @r;   r  r    s   *,GH23H_-z:;H  .2.204(,26*.!%-.6
##d*6
 t+6
 &&-	6

 6
 ((4/6
   4'6
 $;6
 ell*6
 +,6
 
 6
  6
r<   r  c                       e Zd Zy) SmolLM3ForSequenceClassificationNrh   ri   rj   r   r<   r;   r/  r/        r<   r/  c                       e Zd Zy)SmolLM3ForTokenClassificationNr0  r   r<   r;   r3  r3    r1  r<   r3  c                       e Zd ZdZy)SmolLM3ForQuestionAnsweringtransformerN)rh   ri   rj   r   r   r<   r;   r5  r5    s    %r<   r5  )r   r   r  r/  r3  r5  )r"   )r   )Ecollections.abcr   typingr   rH   r   activationsr   cache_utilsr   r	   
generationr
   integrationsr   r   r   masking_utilsr   r   modeling_flash_attention_utilsr   modeling_layersr   r   r   r   modeling_outputsr   r   modeling_rope_utilsr   r   modeling_utilsr   r   processing_utilsr   utilsr   r   r   utils.genericr   r    utils.output_capturingr!   configuration_smollm3r#   Moduler%   rv   r   rk   rn   r   rL   r   r   r   r   r   r   r   r  r/  r3  r5  __all__r   r<   r;   <module>rJ     s  * %    ! . ) f f R B  P K F & I I G 5 0><RYY ><B( *+ ,2	UU\\ 	U# 	U%,, 	U& %II%<<% 
% <<	%
 LL4'% % % '(%2 )*I)ryy I) +I)X Y'JRYY J (J(  (4 (V _  $ Q
) Q
 Q
h F
/ F
 F
R	'GI_ 		$ACY 	&"=?U &r<   