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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2016/10/05 00:36:21 UTC

[jira] [Closed] (SYSTEMML-380) CSR sparse matrix block

     [ https://issues.apache.org/jira/browse/SYSTEMML-380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm closed SYSTEMML-380.
-----------------------------------

> CSR sparse matrix block
> -----------------------
>
>                 Key: SYSTEMML-380
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-380
>             Project: SystemML
>          Issue Type: Task
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 0.10
>
>
> Based on the new SparseBlock abstraction defined in [SYSTEMML-378], we now also add an implementation of the traditional CSR sparse matrix representation. This representation is very memory-efficient and shows good computation performance. However, there are major challenges in implementing efficient operations for read, merge, and indexing which require incremental construction and non-sequential updates.



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