On Mon, Oct 12, 2009 at 1:43 PM, Grant Ingersoll <gsing...@apache.org>wrote: > I think 165 needs to be in this release, it is a pretty big performance issue. I'm leaning towards the Colt stuff at the moment. Perhaps in 0.3, we can refocus on > how we want to attack the matrix stuff.
Didn't Ted say that he thought Colt wasn't the best, he thought? Ted said (in some other thread) : > Regarding Colt, I don't think that Colt is even all that close to the state > of the art for linear algebra performance available in Java. It used to be > the pinnacle, but various other libraries have substantially eclipsed it. > Other libraries have the added benefit of being able to make use of Atlas > or other platform specific implementations where available. This can give > outrageous performance. I've got a copy of steal-able (unnacceptably licensed hep.aida.* code removed) colt if we did want to try and do some performance comparisons of colt vs commons-math vs [what are the other contenders now?] for 0.3. What's the status of the patch on MAHOUT-165? I brought it up to compiling status a week or so ago, but I don't know if anyone's been looking at it since... -jake
