I think another thing to look at is Mahout - http://lucene.apache.org/mahout
See http://mahout.markmail.org/search/matrix+multiplication Otis -- Sematext is hiring -- http://sematext.com/about/jobs.html?mls Lucene, Solr, Nutch, Katta, Hadoop, HBase, UIMA, NLP, NER, IR ----- Original Message ---- > From: Brian Bockelman <bbock...@cse.unl.edu> > To: common-user@hadoop.apache.org > Cc: core-u...@hadoop.apache.org > Sent: Fri, November 13, 2009 12:06:37 PM > Subject: Re: Using hadoop for Matrix Multiplication in NFS? > > Hi, > > Assuming you're doing math... > What you want is PETSc for sparse matrices: > http://www.mcs.anl.gov/petsc/petsc-as/ > If you're doing dense matrices, probable scalapack: > http://www.netlib.org/scalapack/ > > You benefit from working with someone who has a background in numerical > analysis. > > Brian > > On Nov 14, 2009, at 12:42 AM, zjffdu wrote: > > > See my comments > > > > > > -----Original Message----- > > From: Gimick [mailto:gimmicki...@gmail.com] > > Sent: 2009年11月12日 23:22 > > To: core-u...@hadoop.apache.org > > Subject: Using hadoop for Matrix Multiplication in NFS? > > > > > > Hi, I am new to hadoop. I am planning to do matrix multiplication(of order > > millions) using hadoop. > > > > I have a few queries regarding the above. > > > > i) Will using hadoop be a fix for this or should I try some other > > approaches? > > > > --- Hama maybe such a tool that fit for your requirement, > > http://incubator.apache.org/hama/ > > > > ii) I will be using it in NFS. Will using hadoop still be a good option? > > --- If you want to use NFS, I guess you have to provide your own > > InputFormat. So you'd better put your data into hdfs, it will make your work > > easy and improve your program's performance > > > > > > > > If I can use hadoop for this problem, could you plz send links to configure > > hadoop-site.xml file for a nfs system. > > > > P.S. I tried a few setup instructions via search, but everything seems to > > give "Unable to connect to ...." error. > > > > --View this message in context: > > http://old.nabble.com/Using-hadoop-for-Matrix-Multiplication-in-NFS--tp26332 > > 382p26332382.html > > Sent from the Hadoop core-user mailing list archive at Nabble.com.
