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https://issues.apache.org/jira/browse/SYSTEMML-747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm reassigned SYSTEMML-747:
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Assignee: Matthias Boehm
> Wrong in-memory csv reblock decision w/ unknowns
> ------------------------------------------------
>
> Key: SYSTEMML-747
> URL: https://issues.apache.org/jira/browse/SYSTEMML-747
> Project: SystemML
> Issue Type: Bug
> Components: Runtime
> Affects Versions: SystemML 0.10
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
>
> The decision on cp in-memory reblock for text input matrices is made based on
> the estimated size in memory. For csv reblock, we support persistent reads
> with unknown dimension sizes. In scenarios with unknown dimensions the memory
> estimate is always negative, resulting always in in-memory reblocks which
> either take very long or even run out of memory.
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