U
    hâËd,  ã                   @   sX   d dl mZ d dlZd dlmZmZ d dlZd dlZG dd„ deƒZ	e
dkrTe ¡  dS )é    )ÚcudaN)Úskip_on_cudasimÚCUDATestCasec                   @   sv   e Zd Ze eejƒdk d¡dd„ ƒZe	dƒdd„ ƒZ
e eejƒdk d¡dd	„ ƒZe eejƒdk d¡d
d„ ƒZdS )ÚTestMultiGPUContexté   zneed more than 1 gpusc           
   
   C   sp  t  d¡dd„ ƒ}dd„ }d}tj|tjd�}tj|tjd�}t jd � |d	|f ||ƒ W 5 Q R X |||ƒ |d	|f ||ƒ |||ƒ t jd �€ tj|tjd�}tj|tjd�}|d	|f ||ƒ t jd	 �8 tj|tjd�}tj|tjd�}	|d	|f ||	ƒ W 5 Q R X W 5 Q R X |||ƒ |||	ƒ tj|tjd�}tj|tjd�}|d	|f ||ƒ |||ƒ d S )
Nzvoid(float64[:], float64[:])c                 S   s(   t  d¡}||jk r$| | d ||< d S ©Né   ©r   ÚgridÚsize)ÚinpÚoutÚi© r   ú^/home/sam/Atlas/atlas_env/lib/python3.8/site-packages/numba/cuda/tests/cudapy/test_multigpu.pyÚcopy_plus_1   s    

z>TestMultiGPUContext.test_multigpu_context.<locals>.copy_plus_1c                 S   s   t j | d |¡ d S r   )ÚnpÚtestingÚassert_equal)r   r   r   r   r   Úcheck   s    z8TestMultiGPUContext.test_multigpu_context.<locals>.checké    ©Zdtyper   r   )r   Újitr   ÚarangeZfloat64Úgpus)
Úselfr   r   ÚNÚAÚBZA0ÚB0ÚA1ZB1r   r   r   Útest_multigpu_context	   s2    


&

z)TestMultiGPUContext.test_multigpu_contextz+Simulator does not support multiple threadsc                    sŒ   dd„ ‰t  t d¡¡‰ d}d g| ‰‡ ‡‡fdd„t|ƒD ƒ}|D ]}| ¡  qD|D ]}| ¡  qVˆD ]}t|tƒr||‚qh|  	|¡ qhd S )Nc              
   S   sd   z| � |  ¡ }W 5 Q R X W n* tk
rF } z|||< W 5 d }~X Y nX t |t d¡k¡||< d S )Né
   )Úcopy_to_hostÚ	Exceptionr   Úallr   )ZgpuÚdAÚresultsZridxÚarrÚer   r   r   Úwork4   s    z4TestMultiGPUContext.test_multithreaded.<locals>.workr"   c                    s&   g | ]}t jˆtjjˆ ˆ|fd �‘qS ))ÚtargetÚargs)Ú	threadingÚThreadr   r   Úcurrent)Ú.0r   ©r&   r'   r*   r   r   Ú
<listcomp>C   s   þ  ÿz:TestMultiGPUContext.test_multithreaded.<locals>.<listcomp>)
r   Ú	to_devicer   r   ÚrangeÚstartÚjoinÚ
isinstanceÚBaseExceptionÚ
assertTrue)r   ZnthreadsÚthreadsÚthÚrr   r1   r   Útest_multithreaded2   s    
þ


z&TestMultiGPUContext.test_multithreadedc              	   C   s  t jdd„ ƒ}tjdtjd�}t jd � t  |¡}W 5 Q R X t jd � t  |¡}W 5 Q R X t jd � |d |dƒ W 5 Q R X t jd � |d |dƒ W 5 Q R X t jd � tj | 	¡ |d ¡ W 5 Q R X t jd � tj | 	¡ |d ¡ W 5 Q R X d S )	Nc                 S   s(   t  d¡}|| jk r$| |  |7  < d S r   r	   )r(   Úvalr   r   r   r   Úvector_add_scalarU   s    

z@TestMultiGPUContext.test_with_context.<locals>.vector_add_scalarr"   r   r   r   )r   r"   r   )
r   r   r   r   Úfloat32r   r3   r   r   r#   )r   r?   ÚhostarrÚarr1Úarr2r   r   r   Útest_with_contextR   s    
 z%TestMultiGPUContext.test_with_contextc              	   C   s¾   t jd �" t  ¡ }| d¡s(|  d¡ W 5 Q R X tjdtjd�}t jd � t  |¡}W 5 Q R X t jd � t  t 	|¡¡}W 5 Q R X t jd �" | 
|¡ tj | ¡ |¡ W 5 Q R X d S )Nr   r   z!Peer access between GPUs disabledr"   r   )r   r   Zcurrent_contextZcan_access_peerZskipTestr   r   r@   r3   Z
zeros_likeZcopy_to_devicer   r   r#   )r   ÚctxrA   rB   rC   r   r   r   Útest_with_context_peer_copyn   s    

z/TestMultiGPUContext.test_with_context_peer_copyN)Ú__name__Ú
__module__Ú__qualname__ÚunittestZskipIfÚlenr   r   r!   r   r=   rD   rF   r   r   r   r   r      s   
(

r   Ú__main__)Znumbar   Únumpyr   Znumba.cuda.testingr   r   r-   rJ   r   rG   Úmainr   r   r   r   Ú<module>   s    