
    çgP                        d dl mZ ddlmZ ddlmZ dZeefdej        fd            Zeefdej        fd            Z	eefdej        fd	            Z
eefdej        fd
            Zed             Zeefdej        fd            Zeefdej        fd            Zed             Zeefdej        fd            Zeefdej        fd            ZdS )   )jit   )core)math
   n_roundsc                 |   | j         t          j        k    r	d}d}d}	d}
n0t          j        | j         t          j        k    d           d}d}d}	d	}
t          j        |          D ]T}|	}|
}| |}}t          j        ||          |z  |z  } t          j        ||          |z  |z  }||z  }||z  }||z   }||z   }U| |||fS )
zV
    Run `n_rounds` rounds of Philox for state (c0, c1, c2, c3) and key (k0, k1).
    l   yn< l   .v l   S$ l   W= z"dtype not supported in philox_impll   |~fq	 l   ;'	:=[ l   lB;: l   W$*	R )dtypetluint32static_assertuint64static_ranger   umulhi)c0c1c2c3k0k1r   PHILOX_KEY_APHILOX_KEY_BPHILOX_ROUND_APHILOX_ROUND_B_AB_c0_c2s                   R/var/www/html/ai-engine/env/lib/python3.11/site-packages/triton/language/random.pyphilox_implr!      s    
 
x29%/%/'1'1
RY.0TUUU%7%7'9'9_X&&   rS[C  2%*[C  2%*WW,,r2r>    c           	         t          j        |           } t          j        |          }t          j        |          }t          j        |          }t          j        |          }|                     t           j                  } t          j        |j        j                  dk    rTt           j        }| dz	  dz                      t           j                  }| dz                      t           j                  }nZt          j        t          j        |j        j                  dk    d           t           j        }t          j	        dd|          }| }|                    |d	          }|                    |d	          }|                    |d	          }|                    |d	          }t          |||||||          S )
N    l    @   z bitwidth not supported in philox)r       )r
   Tbitcast)r   	to_tensortor   	constexprr
   primitive_bitwidthr   r   fullr!   )	seedr   r   r   r   r   	int_dtypeseed_hiseed_los	            r    philoxr2   -   ss   <D	b		B	b		B	b		B	b		B7729D	|BH/00B66I	BJ*,00;;*$((33
bh&ABBbHJlmmmI	'%)444	y$	'	'B	y$	'	'B	y$	'	'B	y$	'	'Br2r2wBBBr"   c                 2    t          | ||          \  }}}}|S )aq  
    Given a :code:`seed` scalar and an :code:`offset` block, returns a single
    block of random :code:`int32`.

    If you need multiple streams of random numbers,
    using `randint4x` is likely to be faster than calling `randint` 4 times.

    :param seed: The seed for generating random numbers.
    :param offset: The offsets to generate random numbers for.
    )	randint4x)r.   offsetr   retr   s        r    randintr7   E   s"     T6844LCAqJr"   c                 4    |dz  }t          | |||||          S )aU  
    Given a :code:`seed` scalar and an :code:`offset` block, returns four
    blocks of random :code:`int32`.

    This is the maximally efficient entry point
    to Triton's Philox pseudo-random number generator.

    :param seed: The seed for generating random numbers.
    :param offsets: The offsets to generate random numbers for.
    r&   )r2   )r.   r5   r   _0s       r    r4   r4   U   s%     
!B$BH555r"   c                 2   t          j        | j        t           j        k              s't          j        | j        t           j        k              r$|                     t           j        d          } d}nt          j        t          j        | j        t           j        k              p&t          j        | j        t           j        k                         |                     t           j        d          } d}t          j	        | dk     |  dz
  |           } | |z  S )zo
    Numerically stable function to convert a random uint into a random float uniformly sampled in [0, 1).
    Tr'   g=g   ;r&   r   )
r   r+   r
   r   int32r*   r   r   int64where)xscales     r    uint_to_uniform_floatr@   s   s     
|AGry()) 'R\!'RX:M-N-N 'DD4D(( 
ag&:;;`r|AGWYW_L_?`?`aaaDD4D((&
QQ""Au9r"   c                 B    t          | ||          }t          |          S )z
    Given a :code:`seed` scalar and an :code:`offset` block,
    returns a block of random :code:`float32` in :math:`U(0, 1)`.

    :param seed: The seed for generating random numbers.
    :param offsets: The offsets to generate random numbers for.
    )r7   r@   )r.   r5   r   sources       r    randrC      s#     T68,,F (((r"   c                     t          | ||          \  }}}}t          |          }t          |          }t          |          }	t          |          }
|||	|
fS )a   
    Given a :code:`seed` scalar and an :code:`offsets` block,
    returns 4 blocks of random :code:`float32` in :math:`U(0, 1)`.

    :param seed: The seed for generating random numbers.
    :param offsets: The offsets to generate random numbers for.
    )r4   r@   )r.   offsetsr   i1i2i3i4u1u2u3u4s              r    rand4xrN      s_     tWh77NBB	r	"	"B	r	"	"B	r	"	"B	r	"	"Br2r>r"   c                     t          j        d|           } d|z  }t          j        dt          j        |           z            }|t          j        |          z  |t          j        |          z  fS )zBox-Muller transformgHz>g-DT!@g       )r   maximumr   sqrtlogcossin)rJ   rK   thrs       r    pair_uniform_to_normalrW      s`     
FB		B	R	B	$"%&&Atx||Q"---r"   c                     t          | ||          \  }}}}t          |          }t          |          }t          ||          \  }}|S )a  
    Given a :code:`seed` scalar and an :code:`offset` block,
    returns a block of random :code:`float32` in :math:`\mathcal{N}(0, 1)`.

    :param seed: The seed for generating random numbers.
    :param offsets: The offsets to generate random numbers for.
    )r4   r@   rW   )	r.   r5   r   rF   rG   r   rJ   rK   n1s	            r    randnrZ      sO     T6844LBAq	r	"	"B	r	"	"B"2r**EBIr"   c                     t          | ||          \  }}}}t          ||          \  }}t          ||          \  }	}
|||	|
fS )a	  
    Given a :code:`seed` scalar and an :code:`offset` block,
    returns 4 blocks of random :code:`float32` in :math:`\mathcal{N}(0, 1)`.

    :param seed: The seed for generating random numbers.
    :param offsets: The offsets to generate random numbers for.
    )rN   rW   )r.   r5   r   rJ   rK   rL   rM   rY   n2n3n4s              r    randn4xr_      sQ     D&(33NBB#B++FB#B++FBr2r>r"   N)runtime.jitr    r   r   r   N_ROUNDS_DEFAULTr+   r!   r2   r7   r4   r@   rC   rN   rW   rZ   r_    r"   r    <module>rd      s                      AQ  ",    @ :J C C2< C C C C. 3C  BL     5E 6 6bl 6 6 6 6:   & 0@ 	) 	) 	) 	) 	) 	) 3C  BL    * . . . 1A  ",     3C  BL      r"   