Dave, thank You very much for yours information. Really, I want to know a theorical big-O algorithm, mainly to interact with sparce matrix. We see every day a new technic computation growing world information, but I not seen a new and revolutionary multiply matrix algorithm that take less than O(n^2). Maby this not will exists, but how can we use a parallel programming skills to better to make that rotine ? Is this what I should like to know.
2010/12/8 Dave <dave_and_da...@juno.com>: > Are you interested in actual computation speed or are you interested > in theoretical big-O speed? If you want the fastest computation for a > specific, reasonable-sized problem with no particular structure (i.e., > non-sparse), then using the ordinary matrix multiply algorithm that is > coded the best will probably beat any theoretically-faster algorithm. > You probably will find the fastest matrix-multiplication code in one > of the sets of the so-called Basic Linear Algebra Subprograms (BLAS). > Check out http://www.netlib.org/blas/faq.html, and especially 5) > therein: http://www.netlib.org/blas/faq.html#5. > > Dave > > On Dec 8, 6:09 am, Luciano Junior <luciano....@gmail.com> wrote: >> What is best multiply matrix algorithm for: >> >> -multiply a n x n matrix by another n x n matrix >> -multiply a m x n matrix by a n x p matrix >> >> I need a best performance cpu algorithm. >> Note: it can use a parallel programming concept. >> >> Thankfully. >> ---------------------------------------- >> Luciano. > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algoge...@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > > -- ---------------------------------------- Luciano Soares Pinheiro Jr. Analista desenvolvedor Sr. -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algoge...@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
