[jira] Updated: (HAMA-129) Improving speed of matrix multiplication

["Edward J. Yoon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HAMA-129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward J. Yoon updated HAMA-129:
--------------------------------

    Attachment: HAMA-129.patch

More simplifed patch to avoid 'OOM'

> Improving speed of matrix multiplication
> ----------------------------------------
>
>                 Key: HAMA-129
>                 URL: https://issues.apache.org/jira/browse/HAMA-129
>             Project: Hama
>          Issue Type: Improvement
>          Components: implementation
>    Affects Versions: 0.1.0
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>             Fix For: 0.1.0
>
>         Attachments: HAMA-129.patch
>
>
> We use a blockinputformat (row based partitioning). but it causes "java.lang.OutOfMemoryError: Java heap space" when size is big.
> I'll write the formulas and partition them as PIEstimator.

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