[concurrency-interest] Matrix Multiply examples
mthornton at optrak.co.uk
Wed Feb 13 15:45:31 EST 2008
I have created a simple example of matrix multiplication using the
current fork join frame work.
The source is here:
http://homepage.ntlworld.com/m.p.thornton/MatrixMultiply.zip (less than
Actually a set of 7 matrix multipliers with progressively better
performance, starting with the obvious trivial version. It could no
doubt be improved further. The simplest code achieves about 90 MFLops,
the best serial code 1600 MFlops, and the concurrent code 6000 MFlops.
All for 1200x1200 matrices on a quad core Q6600. This matrix size was
chosen to ensure it didn't fit in the processor cache (2 x 4MB). The
code does not require square matrices or round sizes, but has not been
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