On page: http://blog.accelereyes.com/blog/2010/02/09/109/#respond

In this code:

Code A: Jacket code

gcache flush; % Makes a clean slate. Removes old traces
tic
for i = 1:10000
p = grand(100); q = grand(100);
gforce(p,q); % Forces inputs to exist before proceeding
p = cos(p); <——————————————– cp = …
sp = sin(p);
cq = cos(q);
sq = sin(q);
A = cp + sq;
B = cq + sp;
gforce(A,B); % Makes sure A,B are computed
end
toc

I believe you need "p = cos(p);" to be "cp = cos(p);"