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From "edward yoon" <edw...@udanax.org>
Subject Re: How to write a matrix multiplication program in C ++ using Hadoop?
Date Thu, 07 Feb 2008 12:18:58 GMT
Additionally, matrix package code isn't for shared-memory.
Also, If you can put the matrices data from text file to Hbase, you
can use the matrix multiplication map/reduce code.

On 2/7/08, Amareshwari Sri Ramadasu <amarsri@yahoo-inc.com> wrote:
> You can use Hadoop pipes for c++ map/reduce.
> Some info available at
> http://hadoop.apache.org/core/docs/r0.15.3/api/org/apache/hadoop/mapred/pipes/package-summary.html
> Hadoop wrote:
> > I do not see any code at the link :
> > https://issues.apache.org/jira/browse/HADOOP-2515
> > and when I tried to register to login, I got following the error message:
> >
> > Errors: Your session has timed out
> >
> > I have found this link at Haoop web site:
> > http://wiki.apache.org/hadoop/Matrix?highlight=%28matri%29
> > but it does not solve my problem for three reasons:
> > 1-The code is for shared-memory architecture but I am looking for a code for
> > multicomputer (commodity cluster) architecture
> > 2- The code generate random numbers for the matrix but I am looking for a
> > code to read the inputs form text files and write the result to a text file
> > 3- How can I write the code in c++ and run it on Haoop?
> >
> >
> >
> >
> > edward yoon-3 wrote:
> >
> >> Please see https://issues.apache.org/jira/browse/HADOOP-2515
> >>
> >> On 1/26/08, Hadoop <hadoop@hotmail.com> wrote:
> >>
> >>> How can I write a C++ program that reads two text files (MatriX1 and
> >>> Matrix2),
> >>> multiplies the two matrices, and writes the result in a text file
> >>> (Matrix3)
> >>> using Hadoop?
> >>>
> >>>
> >>> --
> >>> View this message in context:
> >>> http://www.nabble.com/How-to-write-a-matrix-multiplication-program-in-C-%2B%2B-using-Hadoop--tp15013753p15013753.html
> >>> Sent from the Hadoop lucene-users mailing list archive at Nabble.com.
> >>>
> >>>
> >>>
> >> --
> >> B. Regards,
> >> Edward yoon @ NHN, corp.
> >>
> >>
> >>
> >
> >
>
>


-- 
B. Regards,
Edward yoon @ NHN, corp.

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