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From "Aleksey Zinoviev (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (IGNITE-6761) Change block numeration in SparseBlockMatrixStorage
Date Thu, 26 Oct 2017 12:15:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-6761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aleksey Zinoviev reassigned IGNITE-6761:
----------------------------------------

    Assignee: Aleksey Zinoviev

> Change block numeration in SparseBlockMatrixStorage
> ---------------------------------------------------
>
>                 Key: IGNITE-6761
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6761
>             Project: Ignite
>          Issue Type: Improvement
>      Security Level: Public(Viewable by anyone) 
>          Components: ml
>            Reporter: Aleksey Zinoviev
>            Assignee: Aleksey Zinoviev
>
> Please, change schema of block numeration from 1-dimension coordinates to 2-dimension
coordinates. It helps to avoid complex calculation of blockId and row and column of CacheEntries
for block.
> Now there are a few bugs there.
> From
> ||Heading 1||Heading 2||
> |0|1|
> |2|3|
> |4|5|
> to
> ||Heading 1||Heading 2||
> |0,0|0,1|
> |1,0|1,1|
> |2,1|2,2|



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