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          Patch for memory usage in template_similarity
          #4152
        
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            samuelgarcia
  merged 18 commits into
  SpikeInterface:main
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yger:memory_template_similarity
  
      
      
   
  Oct 27, 2025 
      
    
                
     Merged
            
            
  
    Patch for memory usage in template_similarity
  
  #4152
              
                    samuelgarcia
  merged 18 commits into
  SpikeInterface:main
from
yger:memory_template_similarity
  
      
      
   
  Oct 27, 2025 
              
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                    samuelgarcia
  
              
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Currently, the way we are computing the similarity extension precomputes a large mask matrix of size n_templates x n_templates x n_channels. But it these numbers are large, this is saturating the memory for no reasons, because actually, we only need one row at a time while computing similarities. This is a patch for the situation and should solve #4150
For some unknow reason, I can not get numba use the python function get_mask_for_sparse_template(), thus there is some code duplication