Vimal, We don't have any distributed dense multiplication operations because we have not yet found much application demand for distributed dense matrix multiplication. Distributed sparse matrix operations are a big deal, however.
If you are interested in working on the problem in the context of Mahout, we would love to help. This is especially true if you have an application that needs dense operations and could benefit from some of the other capabilities in Mahout. On Sun, Apr 11, 2010 at 1:27 PM, Vimal Mathew <[email protected]> wrote: > Hi, > What's the current state of matrix-matrix multiplication in Mahout? > Are there any performance results available for large matrices? > > I have been working on a Hadoop-compatible distributed storage for > matrices. I can currently multiply two 40K x 40K dense double > precision matrices in around 1 hour using 34 systems (16GB RAM, two > Core2Quads' per node). I was wondering how this compares with Mahout. > > Regards, > Vimal >
