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From "Mike Dusenberry (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (SYSTEMML-1575) DataType Change Test Failure
Date Fri, 05 May 2017 20:49:04 GMT

     [ https://issues.apache.org/jira/browse/SYSTEMML-1575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Dusenberry closed SYSTEMML-1575.
-------------------------------------

> DataType Change Test Failure
> ----------------------------
>
>                 Key: SYSTEMML-1575
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1575
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Mike Dusenberry
>            Assignee: Mike Dusenberry
>             Fix For: SystemML 1.0
>
>
> While working on SYSTEMML-1554, an additional bug was uncovered. Specifically, with the
IPA scalar replacement enhancement, the {{org.apache.sysml.test.integration.functions.misc.DataTypeChangeTest#testDataTypeChangeValidate4c}}
test has started to fail.  Looking into it, it fails due to trying to cast a Matrix to a Scalar
object.  At a deeper level, it looks like the propagated variable map is holding onto the
"matrix" `X`, rather than dropping it as it should, since X is turned into a scalar by the
call `X = foo(X)`.  Interestingly, the FunctionOp for the `foo` function is marked as having
an `Unknown` datatype and valuetype.  Overall, this seems like a bug that was just hidden
before, rather than being newly introduced.



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