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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: speeding up ACCUMARRAY
Replies: 12   Last Post: Nov 15, 2012 3:35 AM

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Bruno Luong

Posts: 8,725
Registered: 7/26/08
Re: speeding up ACCUMARRAY
Posted: Nov 14, 2012 2:02 AM
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"Matt J" wrote in message <k7ulhl$iod$1@newscl01ah.mathworks.com>...

>In fact, the sparse matrix multiplication is probably even handicapped relative to accumarray, since it has to search through x for the appropriate x(J),

There is no such step in sparse multiplication.

Bruno



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