From: Chris B. <Chr...@no...> - 2005-07-29 16:23:09
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Jochen Küpper wrote: > "Chris Barker" <Chr...@no...> writes: >>Do you mean this? : > yes OK, so I've done what I can. > To find out you might have to look at the LAPACK functions you are > using and compare them against the ones provided by ATLAS. Well, I'm testing using LinearAlgebra.solve_linear_equations() from Numeric (and numarray). The reason I'm wondering is that on my last machine, a 1ghz PIII laptop running Gentoo, using the Gentoo provided atlas/lapack, I got a 6-7 times speed up over lapack_lite. On my new machine, a 2GHz Pentium M laptop running FC4, I got about a 2 times speed-up, which is nice, but not nearly as impressive. Another possible issue is that I used pre-complied binaries form the atlas site, which are a bit old, maybe I should compile myself. Any thoughts? -Chris -- Christopher Barker, Ph.D. Oceanographer NOAA/OR&R/HAZMAT (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception Chr...@no... |