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By Jochen Voss, on
I started reading Ulrich Drepper's excellent series
Programmer should know about memory. It is published by
Linux Weekly News in weekly installments.
Until now, the following parts appeared:
The author shows, for example, how the naive matrix-matrix multiplication
for (i = 0; i < N; ++i) for (j = 0; j < N; ++j) for (k = 0; k < N; ++k) res[i][j] += A[i][k] * B[k][j];
can be improved to run 10 times faster for big matrices!
This is an excerpt from Jochen's blog.
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