I'm not sure, but I would suspect that Mahout has some low level map/reduce jobs for this. You might start there.
On Fri, Nov 18, 2011 at 8:59 AM, Mike Spreitzer <mspre...@us.ibm.com> wrote: > Who is doing multiplication of large dense matrices using Hadoop? What is > a good way to do that computation using Hadoop? > > Thanks, > Mike -- Thanks, John C