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Unformatted text preview: 7. Extra Credit: In class (on Feb 3) we will complete our analysis of our simplest divideandconquer algorithm for matrix multiplication (the one that reduces nbyn matrix multiplication C = A B to 8 multiplications and 4 additions of n 2byn 2 matrices), and show that it only moves O ( n 3 /M 1 / 2 ) words between main memory and a cache of size M < n 2 . An analgous analysis can be done for Strassens method, showing that it only moves O ( n /M x ) words, where = log 2 7 2 . 81, and x is another constant. What is x ?...
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This note was uploaded on 04/30/2010 for the course CS 170 taught by Professor Henzinger during the Spring '02 term at University of California, Berkeley.
 Spring '02
 HENZINGER
 Algorithms

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