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Associated article: Integer 64-Bit Optimizations

Tags:      Parallel    

Published source code accompanying the article by Anatoliy Kuznetsov in which he shows how to fully utilize the power of 64-bit CPUs by exploiting wider machine words. Anatoliy presents performance optimization techniques that take advantage of this power.

					Integer 64-bit Optimizations

by Anatoliy Kuznetsov

Listing One


    int   a1[2048];

    int   a2[2048];

    int   a3[2048];

    for (int i = 0; i < 2048; ++i)


         a3[i] = a1[i] ^ a2[i];




Listing Two


    long long  a1[1024];

    long long  a2[1024];

    long long  a3[1024];

    for (int i = 0; ...							
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