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https://issues.apache.org/jira/browse/HAMA-800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13781651#comment-13781651
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Martin Illecker commented on HAMA-800:
--------------------------------------
Thanks for verification and testing!
I have committed it.
{quote}
A few questions:
* Are binary files summation, piestimator, and matrixmultiplication from
corresponded impl/*.cc source?
* MatrixA.seq, and MatrixB_transposed.seq not found in input folder. Does it
required additional steps to create those files?
* Do cpp sources have test cases?
{quote}
* Yes, the binary files summation, piestimator, and matrixmultiplication in
*c++/target/native/examples/* correspond to the source files in
*c++/src/main/native/examples/impl/*.cc*
These example binaries are compiled together with Hama Pipes libraries in the
pipes phase of mvn execution.
* The MatrixA.seq and MatrixB_transposed.seq are located in
*c++/src/main/native/examples/input/* and should be example input files for the
matrixmultiplication
But you can create your own matrix input file by
{code}
FileSystem fs = FileSystem.get(conf);
SequenceFile.Writer writer = new SequenceFile.Writer(fs, conf, path,
IntWritable.class, VectorWritable.class);
double[][] matrix;
for (int i = 0; i < matrix.length; i++) {
DenseDoubleVector rowVector = new DenseDoubleVector(matrix[i]);
writer.append(new IntWritable(i), new VectorWritable(rowVector));
}
{code}
* Currently the c++ source does not have a test case, but I'm working on a Hama
Pipes test case
> Hama Pipes Examples
> -------------------
>
> Key: HAMA-800
> URL: https://issues.apache.org/jira/browse/HAMA-800
> Project: Hama
> Issue Type: Improvement
> Affects Versions: 0.6.2
> Reporter: Martin Illecker
> Assignee: Martin Illecker
> Priority: Minor
> Labels: examples
> Fix For: 0.6.3
>
> Attachments: HAMA-800.patch
>
>
> *Adding Hama Pipes Examples*
> Add C++ Hama Pipes examples [1]
> - Summation
> - PiEstimation
> - MatrixMultiplication
> and build them in maven pipes step.
> [1] https://github.com/millecker/applications/tree/master/hama/pipes
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