
    (HJj-                         d 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 ddlmZ ddlmZmZmZ d Z G d	 d
ej*                        Z	 ddZd Zedk(  r e        yy)zS
Implements GPTQ

- https://arxiv.org/abs/2210.17323
- https://github.com/AutoGPTQ
    N)tree_flattentree_unflatten)tqdm)QuantizedSwitchLinearSwitchLinear)	load_data)compute_bits_per_weightloadsavec           	      (   |dv s
J d|        d|z  }d|z  dz
  }t        j                  | d|j                  d   df      } t        j                  t        j                  | |d   z
  |d   z        d|      j                  t         j                        } t        j                  dt        j                  d	d|t         j                              }t        j                  | dd|f      } t        j                  | |z  d
      } | j                  dd      S )N>            zUnsupported bits     r      ).N        r   axis)mx	unflattenshapecliproundastypeuint32powerarangesumflatten)wbitsscalesbiases
el_per_intn_binsshiftss          [/Users/ahmed/devFolder/claude-voice/.venv/lib/python3.12/site-packages/mlx_lm/quant/gptq.pyquantizer*      s    98 1$88tJWq[F
QV\\"-r23A

!fY''6)+<<=sF	fRYY  XXa1b$		:;F
QR,-A
q6z#A99R    c                   $     e Zd Z fdZd Z xZS )Catcherc                 d    t         |           || _        t        j                  d      | _        y )Nr   )super__init__moduler   arrayH)selfr1   	__class__s     r)   r0   zCatcher.__init__)   s$    #r+   c                     |j                  dd      }| j                  |j                  |z  z   | _         | j                  |g|i |S )Nr   r   )r!   r3   Tr1   )r4   xargskwargsxfs        r)   __call__zCatcher.__call__.   sE    YYq""$$)#t{{1.t.v..r+   )__name__
__module____qualname__r0   r<   __classcell__)r5   s   @r)   r-   r-   (   s    
/r+   r-   c                    g }t         j                  t        h}t        | j	                         t         j
                  j                        D ]/  \  }	}
t        |
      |v s|j                  |	t        |
      f       1 | j                  t        |             t        t        t        dt        |      |            t        |      |z  d      D ]*  \  }}||||z    } | |       t!        j"                  |       , d }t         j$                  fd       }t        t        |      t        |      d      D ]<  \  }\  }}
 ||
j&                        }|
`t!        j"                  |       |
j(                  j*                  j,                  }|
j(                  j*                  j/                  t         j0                        }g }g }t        d|j2                  d   |      D ]  }||z   }|d	||f   }t!        j4                  |      }t!        j6                  ||
      \  }}}|j                  |       |j                  |       t        |      D ]m  }	|	|z  }	|d	|	|	dz   f   }||	|	f   } |||||      }|d	|	|	|z   fxx   |||	|	dz   |	|	|z   f   z  z  cc<   ||d	|	|	dz   f<   t!        j"                  ||       o |d	|d fxx   |||||d f   z  z  cc<    t!        j8                  |d      }t!        j8                  |d      }t7        |||      } |
j(                  j;                  |
      }!| |!_        ||!_        ||!_        |!jA                  |       t!        j"                  |!       ||!f||<   ? | j                  t        |             t        | j	                         t         j
                  j                        }|d
}"||d
}#g }$t        |      D ]=  \  }\  }	}
tC        |
d      s|#|"|	<   |$j                  |	 |
j:                  di |#f       ? t        |$      dkD  r| j                  t        |$             | |"fS )N)is_leafr   zComputing Hessians)totaldescc                    t        j                  t         j                        5  dt        j                  t        j                  |             z  }t        j
                  | j                  d         }| ||fxx   |z  cc<   t         j                  j                  |       } t         j                  j                  |       } t         j                  j                  | d      }|cd d d        S # 1 sw Y   y xY w)Ng{Gz?r   T)upper)
r   streamcpumeandiagr   r   linalgcholeskycholesky_inv)r3   damprJ   Hinvs       r)   compute_inverse_hessianz.gptq_quantize.<locals>.compute_inverse_hessianN   s    YYrvv"''"''!*--D99QWWQZ(DdDjMT!M		""1%A		&&q)A99%%at%4D s   B=C++C4c                     dz  dz
  }t        j                  t        j                  | |z
  |z        d|      }||z  |z   }| |z
  |z  S )Nr   r   r   )r   r   r   )r"   dr$   r%   r'   qr#   s         r)   
gptq_errorz!gptq_quantize.<locals>.gptq_errorX   sP    D1GGBHHa&jF23S&AQJA{r+   
Quantizingr   .)r#   
group_sizer   r   to_quantized )"nnLinearr   r   leaf_modulesModule	is_moduletypeappendr-   update_modulesr   r   	enumeraterangelenr   evalcompiler3   r1   weightdtyper   float32r   
zeros_liker*   concatenaterW   r$   r%   	set_dtypehasattr)%modeldatar#   rV   fallback_bitsfallback_group_size
batch_sizelayers
gptq_typesklesbatchrP   rT   lidkeyrO   	orig_typeW
all_scales
all_biasesijWlerr_r$   r%   r"   rR   Wqlayerconfigfallback_configq_layerss%     `                                  r)   gptq_quantizer   4   s    F))\*JU//1299;N;NO17j MM1gaj/* P 
/0 %3t9j12$i:%!1
 QZ(e
 ZZ  &&k Xc1
 'qss+C
HHOO))	HHOO""2::.

q!''"+z2AJA3!8B--#C !#BTj QAvvf%f%:&Qc1q1u9n%AJq!VV4#q1q5y.!Qa!a%iQU.B)C%CC!&'CQUN#Q ' c12gJ#QqS!"W--J+ 30 
4
4avv.%%4J%G	"
Els_b 
/0		##F *5F,<OPOHv&	6Aq1n%'F1IOOQ A ABC ' 8}q^H56&=r+   c                     t        j                         } | j                  ddd       | j                  dd       | j                  dt        dd	
       | j                  dt        dd
       | j                  dt        dd
       | j                  dt        dd
       | j                  dt        dd
       | j                  dt        dd
       | j                  dt        d       | j	                         }t
        j                  j                  |j                         t        |j                  dd      \  }}}t        ||j                  |j                        }t        |||j                  |j                  |j                   |j"                        \  }|d<   t%        |      }t'        d|d d!       t)        |j*                  |j                  |||       y )"Nz--modelz-mzQwen/Qwen3-0.6B-base)defaultz
--mlx-path	mlx_modelz--bitsr   z!Quantization bits for GPTQ layers)r^   r   helpz--group-size@   z'Quantization group size for GPTQ layersz--fallback-bits   z%Quantization bits for non-GPTQ layersz--fallback-group-sizez+Quantization group size for non-GPTQ layersz--num-samplesr   z?Number of samples from the calibration dataset, use -1 for all.z--sequence-lengthi   z)Sequence length for the calibration data.z--seed{   )r^   r   T)lazyreturn_configquantizationzQuantized model with z.3fz bits per weight.)argparseArgumentParseradd_argumentint
parse_argsr   randomseedr
   rm   r   num_samplessequence_lengthr   r#   rV   ro   rp   r	   printr   mlx_path)parserr9   rm   	tokenizerr   calibration_databpws          r)   mainr      s   $$&F
	41GH
k:
sA,O   6	   4	   :	   N	   8	   sC8DIINN499#DJJTNE9f D,<,<d>R>RS$1		  %!E6.! "%
(C	!#c*;
<=

r+   __main__)r   )__doc__r   mlx.corecorer   mlx.nnrY   	mlx.utilsr   r   r   mlx_lm.models.switch_layersr   r   mlx_lm.quant.utilsr   mlx_lm.utilsr	   r
   r   r*   r\   r-   r   r   r=   rX   r+   r)   <module>r      sf       2  K ( 	/bii 	/& k\?D zF r+   