Changes between Version 8 and Version 9 of PossibleOptimizationAreas

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Timestamp:
03/08/06 19:19:41 (7 years ago)
Author:
sasha
Comment:

added reduce optimization

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  • PossibleOptimizationAreas

    v8 v9  
    77  
    88 * As of changeset:2173 {{{x.fill(1)}}} is 2x slower than {{{x += 1}}}.  One should be able to set memory to a constant value faster than autoincrement. [wiki:PossibleOptimizationAreas/FillDiscussion Discussion].  Implemented in changeset:2188. 
     9 
     10 * As of changeset:2108 {{{x.sum(0)}}} is 5x slower than {{{x[0] + x[1]}} for {{{x = zeros((2,500), 'f')}}. [wiki:PossibleOptimizationAreas/ReduceDiscussion Discussion]