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Re^2: Fast sliding submatrix sums with PDL (inspired by PWC 248 task 2)

by Anonymous Monk
on Dec 31, 2023 at 16:07 UTC ( [id://11156605]=note: print w/replies, xml ) Need Help??

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  1. or download this
    ...-> sumover-> sumover
    
  2. or download this
    ...-> clump(2)-> sumover
    
  3. or download this
    sub sms_WxH_PDL_range ( $m, $w, $h ) {
        my ( $W, $H ) = $m-> dims;
    ...
      | 25 | 1.573 | 0.828 | 0.000 | 0.047 |
      +----+-------+-------+-------+-------+
    
  4. or download this
    use strict;
    use warnings;
    ...
    Tutorial: 1.016 s (core time: 0.835)
    "lags":   0.283 s (core time: 0.108)
    

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