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    j9:j#                     @   s$  d Z ddlZddlZddlZddlZddlZddlZddlmZ ddl	m
Z
 ddlmZ ddlmZ ddlZddlmZ dd	lmZmZ dd
lmZ eeZeedddejdeej deeef dB dedef fddZejeddZejeddZ de!fddZ"ej#defddZ$dS )a*  
This module provides TVM backend integration for TorchDynamo.

Apache TVM is a deep learning compiler framework that can optimize and execute
models on various hardware backends. This module enables:

- Compilation of PyTorch models to TVM's computation graphs
- Multiple scheduling options:
  - Default scheduler
  - Auto-scheduler for automatic optimization
  - Meta-schedule for evolutionary search-based tuning
- Hardware-specific optimizations:
  - CUDA GPU support
  - CPU support with LLVM targeting and architecture-specific tuning
  - Automatic detection of CPU capabilities (AVX2, AVX512)
- Tensor conversion utilities between PyTorch and TVM formats
- Configurable optimization levels and tuning trials

The backend can be used with torch.compile():
    model = torch.compile(model, backend="tvm")
    N)Callable)Path)MappingProxyType)Any)fx   )device_from_inputsfake_tensor_unsupported)register_backend)optionsgmexample_inputsr   return.c                   s8  |d u rt d ddd}|d usJ dd lddlm} ddlm} tj| |}t|}dd t	|D }| | }t
|dkrHtd	 | jS |j||\}	}
|jd
krb|j}j }nd}jt }|dd }|d u rtjdd }|dd}|dd}|dkrddlm} t ?}||* jj|ddid |j |	||
d}W d    n1 sw   Y  W d    n1 sw   Y  W d    n1 sw   Y  n|dkr9ddlm!} t" ?}|jd
krjt  d|j#j$dd }|dksJ |j%j&|	|||d|
d|d}|j%j'||	||
|d}W d    n	1 s3w   Y  n-|dksA|sbjj|d |j |	||
d}W d    n	1 s\w   Y  nt(d |)|d | d!j*j+d"tj,fd#d$d%tj,d"j*j+ffd&d'd(tj,d"t-tj, f fd)d*}|S )+Ni N     )	schedulertrials	opt_levelr   )relay)graph_executorc                 S   s    g | ]\}}d | |j fqS )inp_)shape).0idxi r   a/home/nk/hobo-godmode/plappi-mvp/.venv/lib/python3.10/site-packages/torch/_dynamo/backends/tvm.py
<listcomp>=   s     ztvm.<locals>.<listcomp>z0Explicitly fall back to eager due to zero outputcudar   TVM_SCHEDULERr   r   auto_scheduler)r   z relay.backend.use_auto_schedulerT)r   config)targetparamsmeta_schedule)r#   z --num-cores F)logical@   evolutionary)modr!   work_dirmax_trials_globalnum_trials_per_iterr"   strategyr   )databaser'   r!   r"   r   default)r   zThis tuning option is invalid/not implemented for torchdynamo's TVM-related backend. There are three available options: default, auto_scheduler and meta_schedule.	nd_tensorr   c                 S   s*   | j dkrt|  S tjj|  S )z8A helper function to transfer a NDArray to torch.tensor.bool)dtypetorch
from_numpynumpyutilsdlpackfrom_dlpack	to_dlpack)r.   r   r   r   to_torch_tensor   s   
ztvm.<locals>.to_torch_tensortorch_tensorc                    s,   | j tjkr j|   S  j| S )z8A helper function to transfer a torch.tensor to NDArray.)r0   r1   r/   ndarraycpur3   r6   )r9   )tvmr   r   to_tvm_tensor   s   ztvm.<locals>.to_tvm_tensori_argsc                     s   dd | D }   \}}dd | D }t|dD ])\}}| dkrD|jr,| }d| }||vr<td| q || q 	   fddt
  D S )	Nc                 S   s   g | ]}|  qS r   )
contiguous)r   ar   r   r   r          z)tvm.<locals>.exec_tvm.<locals>.<listcomp>c                 S   s   h | ]\}}|qS r   r   )r   name_r   r   r   	<setcomp>   rB   z(tvm.<locals>.exec_tvm.<locals>.<setcomp>r   r   z6input %s skipped as not found in tvm's runtime libraryc                    s   g | ]	}  |qS r   )
get_output)r   r   )mr8   r   r   r      s    )get_input_infoitems	enumeratedimrequires_graddetachlogwarning	set_inputrunrangeget_num_outputs)r?   args
shape_inforD   active_inputsr   arginp_name)rG   r8   r>   r   r   exec_tvm   s*   
ztvm.<locals>.exec_tvm).r   r=   r   tvm.contribr   r1   jittracer   rJ   lenrN   rO   forwardfrontendfrom_pytorchtyper   indexr!   r<   Targetllvm_targetgetosenvironr   tempfileNamedTemporaryFileApplyHistoryBest	transformPassContextbuildr#   TemporaryDirectoryr4   	cpu_countrelay_integration
tune_relaycompile_relayNotImplementedErrorGraphModuler:   r;   Tensorlist)r   r   r   r   r   jit_moddevice
shape_listexample_outputsr'   r"   devr!   r   r   r   r   log_filelibmsr(   r,   rY   r   )rG   r8   r>   r=   r   r=   ,   s   


  


	"r=   r#   )r   r   c                   C   s&   zt d W dS  ty   Y dS w )Nr=   TF)	importlibimport_moduleImportErrorr   r   r   r   has_tvm   s   
r   c                  C   s2   t jdkrtd } d| v rdS d| v rdS dS )Nlinuxz/proc/cpuinfoavx512zllvm -mcpu=skylake-avx512avx2zllvm -mcpu=core-avx2llvm)sysplatformr   	read_text)cpuinfor   r   r   rd      s   
rd   )%__doc__	functoolsr   loggingrf   r   rh   collections.abcr   pathlibr   typesr   typingr   r1   r   commonr   r	   registryr
   	getLogger__name__rN   rt   rv   ru   strr=   partialtvm_meta_scheduletvm_auto_schedulerr/   r   cacherd   r   r   r   r   <module>   sD    

 