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https://issues.apache.org/jira/browse/HAMA-524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13420420#comment-13420420
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Edward J. Yoon commented on HAMA-524:
-------------------------------------
CRS format can be also simply implemented by extending SequenceFile or MapFile
as I commented above. Just write row index (K) and number of nonzero values
(V). For example,
{code}
out.writeInt(number of nonzero values);
for(int i = 0; i < number of nonzero values; i++) {
out.writeint(column index);
out.writeint(value);
}
{code}
> [GSoC 2012] Sparse Matrix-Vector multiplication (SpMV) on Hama
> --------------------------------------------------------------
>
> Key: HAMA-524
> URL: https://issues.apache.org/jira/browse/HAMA-524
> Project: Hama
> Issue Type: New Feature
> Components: bsp core, examples, math
> Reporter: Edward J. Yoon
> Assignee: Mikalai Parafeniuk
> Labels: gsoc, gsoc2012, newbie
>
> Implement Efficient and Fast SpMV algorithm which can be widely used in
> scientiļ¬c computing, financial modeling, information retrieval, and others,
> using Hama Bulk Synchronous Parallel framework.
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